# CHANGELOG

## 1.4.20-M1

### Backend. Native

- [`KT-27534`](https://youtrack.jetbrains.com/issue/KT-27534) Bridges to Nothing-returning methods have incorrect signature
- [`KT-30284`](https://youtrack.jetbrains.com/issue/KT-30284) Native: Nothing? type for expression override and crash
- [`KT-36430`](https://youtrack.jetbrains.com/issue/KT-36430) Optimize when with in range cases
- [`KT-38787`](https://youtrack.jetbrains.com/issue/KT-38787) Missing optimization for "in range" check
- [`KT-39100`](https://youtrack.jetbrains.com/issue/KT-39100) Make Native behaviour of property initialization consistent with JVM
- [`KT-39798`](https://youtrack.jetbrains.com/issue/KT-39798) Override equals/hashCode in functional interface wrappers on Native
- [`KT-39800`](https://youtrack.jetbrains.com/issue/KT-39800) equals/hashCode on adapted function references on Native
- [`KT-41394`](https://youtrack.jetbrains.com/issue/KT-41394) Compilation failed: Backend Internal error: Exception during IR lowering
- [`KT-41907`](https://youtrack.jetbrains.com/issue/KT-41907) Framework test segfaults on GC on watchos_x86 compiled with -opt

### Compiler

#### New Features

- [`KT-35549`](https://youtrack.jetbrains.com/issue/KT-35549) Support kotlin-android-extensions in JVM IR backend (for use with Jetpack Compose projects)

#### Performance Improvements

- [`KT-20571`](https://youtrack.jetbrains.com/issue/KT-20571) Coroutines: Reduce number of local variables stored at suspension point
- [`KT-28016`](https://youtrack.jetbrains.com/issue/KT-28016) Coroutine state-machines spill/unspill shall be optimized using data-flow analysis
- [`KT-33394`](https://youtrack.jetbrains.com/issue/KT-33394) UI freezes triggered by QualifiedExpressionResolver.resolveToPackageOrClassPrefix
- [`KT-36814`](https://youtrack.jetbrains.com/issue/KT-36814) Support optimized delegated properties in JVM_IR
- [`KT-36829`](https://youtrack.jetbrains.com/issue/KT-36829) Optimize 'in' expressions (operator fun contains) in JVM_IR

#### Fixes

- [`KT-16222`](https://youtrack.jetbrains.com/issue/KT-16222) Coroutine should be clearing any internal state as soon as possible to avoid memory leaks
- [`KT-25519`](https://youtrack.jetbrains.com/issue/KT-25519) Extra inline marks inside suspending function callable reference bytecode
- [`KT-33226`](https://youtrack.jetbrains.com/issue/KT-33226) Object INSTANCE field not annotated with NotNull in generated bytecode
- [`KT-35495`](https://youtrack.jetbrains.com/issue/KT-35495) FIR: forbid non-Java synthetic properties
- [`KT-35651`](https://youtrack.jetbrains.com/issue/KT-35651) Kotlin stdlib has greater resolution priority than jars added via @file:DependsOn annotation
- [`KT-35730`](https://youtrack.jetbrains.com/issue/KT-35730) FIR: consider creating fake overrides for objects
- [`KT-36951`](https://youtrack.jetbrains.com/issue/KT-36951) IllegalStateException: Expected some types: Throwing exception when there is a type parameter upper bound for itself
- [`KT-37321`](https://youtrack.jetbrains.com/issue/KT-37321) [FIR] Support java array in type argument
- [`KT-37431`](https://youtrack.jetbrains.com/issue/KT-37431) [FIR] Support Builder Inference
- [`KT-38272`](https://youtrack.jetbrains.com/issue/KT-38272) FIR2IR: use lazy IR symbols for externals & fake overrides
- [`KT-38333`](https://youtrack.jetbrains.com/issue/KT-38333) FIR: CCE on red code with assignment used as expression
- [`KT-38334`](https://youtrack.jetbrains.com/issue/KT-38334) FIR: CCE when resolving try-as-expression
- [`KT-38336`](https://youtrack.jetbrains.com/issue/KT-38336) FIR: NPE with corrupted numeric constant literal
- [`KT-38397`](https://youtrack.jetbrains.com/issue/KT-38397) FIR: Exception while resolving contract definition
- [`KT-38444`](https://youtrack.jetbrains.com/issue/KT-38444) [FIR] Invoke extension lambda with safe call
- [`KT-38470`](https://youtrack.jetbrains.com/issue/KT-38470) FIR: ConeDefinitelyNotNullType in signature
- [`KT-38471`](https://youtrack.jetbrains.com/issue/KT-38471) FIR: ConeIntersectionType in signature
- [`KT-38925`](https://youtrack.jetbrains.com/issue/KT-38925) Internal error: wrong bytecode generated. (AssertionError: int type expected, but null was found in basic frames)
- [`KT-38989`](https://youtrack.jetbrains.com/issue/KT-38989) FIR: Refine sealed classes exhaustiveness in case of sealed subclass
- [`KT-38992`](https://youtrack.jetbrains.com/issue/KT-38992) FIR: Refine type resolution for inner classes
- [`KT-39000`](https://youtrack.jetbrains.com/issue/KT-39000) FIR: Support smartcast after reference equality check
- [`KT-39005`](https://youtrack.jetbrains.com/issue/KT-39005) FIR: Resolve plusAssign in a dependent context
- [`KT-39008`](https://youtrack.jetbrains.com/issue/KT-39008) FIR: Investigate strange effect of type alias and not-nullable bound on inference
- [`KT-39012`](https://youtrack.jetbrains.com/issue/KT-39012) FIR: Inference doesn't get through elvis to lambda parameter
- [`KT-39028`](https://youtrack.jetbrains.com/issue/KT-39028) FIR: Strange resolution to synthetic property with implicit extension receiver while there's an explicit receiver
- [`KT-39032`](https://youtrack.jetbrains.com/issue/KT-39032) FIR: Ambiguity in member scope of a type parameter with multiple bounds
- [`KT-39033`](https://youtrack.jetbrains.com/issue/KT-39033) FIR: Ambiguity when calling generic overridden property
- [`KT-39034`](https://youtrack.jetbrains.com/issue/KT-39034) FIR: Support nested extension function types
- [`KT-39040`](https://youtrack.jetbrains.com/issue/KT-39040) FIR: Deserialize annotations from compiled Kotlin binaries
- [`KT-39043`](https://youtrack.jetbrains.com/issue/KT-39043) FIR: Bare types incorrectly work with type aliases
- [`KT-39044`](https://youtrack.jetbrains.com/issue/KT-39044) FIR: Add fillInStackTrace to member scope of kotlin.Throwable
- [`KT-39046`](https://youtrack.jetbrains.com/issue/KT-39046) FIR: Implicit types in lambdas left when call argument is a type cast
- [`KT-39048`](https://youtrack.jetbrains.com/issue/KT-39048) FIR: Inference fails with integer literal used as Comparable
- [`KT-39050`](https://youtrack.jetbrains.com/issue/KT-39050) FIR: Type resolver doesn't see nested classes from super class of a local class
- [`KT-39070`](https://youtrack.jetbrains.com/issue/KT-39070) FIR: Ambiguity on super calls to hashCode/equals when having super interface and class
- [`KT-39072`](https://youtrack.jetbrains.com/issue/KT-39072) FIR: Subtyping check doesn't affect nullability of safe-call receiver
- [`KT-39076`](https://youtrack.jetbrains.com/issue/KT-39076) FIR: Synthetic property is not a var because of @Nullable annotation on parameter
- [`KT-39080`](https://youtrack.jetbrains.com/issue/KT-39080) FIR: Smart casts remain incorrect if lambda is present in when branch
- [`KT-39374`](https://youtrack.jetbrains.com/issue/KT-39374) Wrong bytecode generated for suspend function call with EXACTLY_ONCE lambda capturing a variable initialized in when-subject
- [`KT-39621`](https://youtrack.jetbrains.com/issue/KT-39621) [FIR] Support when exhaustiveness checker for java enums
- [`KT-40135`](https://youtrack.jetbrains.com/issue/KT-40135) JVM IR does not generate restricted suspend lambdas
- [`KT-40382`](https://youtrack.jetbrains.com/issue/KT-40382) Missing proper jvmSignature for synthesized equals/hashCode/toString in inline classes
- [`KT-40605`](https://youtrack.jetbrains.com/issue/KT-40605) JVM IR: IndexOutOfBoundsException caused by inner class passed to generic outer class method with Nothing type argument
- [`KT-40664`](https://youtrack.jetbrains.com/issue/KT-40664) JVM: No bounds check in optimization of `ULong in UInt..UInt`
- [`KT-40665`](https://youtrack.jetbrains.com/issue/KT-40665) JVM: No resolved function check when optimizing `in/contains` with mismatched bound types
- [`KT-41014`](https://youtrack.jetbrains.com/issue/KT-41014) FIR2IR: when/where/how to determine the presence of a backing field for a property
- [`KT-41018`](https://youtrack.jetbrains.com/issue/KT-41018) FIR2IR: sort members during de/serialization
- [`KT-41144`](https://youtrack.jetbrains.com/issue/KT-41144) False positive "Redundant spread operator" in when statement and generic vararg argument
- [`KT-41374`](https://youtrack.jetbrains.com/issue/KT-41374) JVM / IR: NoSuchMethodError in Android project compiler caused by combination of inline classes and coroutines
- [`KT-41388`](https://youtrack.jetbrains.com/issue/KT-41388) NI: Backend Internal error: Exception during IR lowering
- [`KT-41429`](https://youtrack.jetbrains.com/issue/KT-41429) Inline class returned from suspend function should be boxed on resume path
- [`KT-41465`](https://youtrack.jetbrains.com/issue/KT-41465) JVM / IR: "AssertionError: inconsistent parent function for CLASS LAMBDA_IMPL CLASS name" caused by inline method call into multiple constructors
- [`KT-41668`](https://youtrack.jetbrains.com/issue/KT-41668) JVM IR: incorrect enclosing constructor for lambdas in initializers of inner classes
- [`KT-41669`](https://youtrack.jetbrains.com/issue/KT-41669) JVM IR: incorrect hashCode intrinsic is used in JVM target 1.8 for generic type substituted with primitive
- [`KT-41693`](https://youtrack.jetbrains.com/issue/KT-41693) NI: Type inference in nested expression incorrectly assumes non-nullable return type of Java function, causing NullPointerException
- [`KT-41729`](https://youtrack.jetbrains.com/issue/KT-41729) NI: UnsupportedOperationException with invalid callable reference
- [`KT-41761`](https://youtrack.jetbrains.com/issue/KT-41761) JVM IR: CCE from backend on generating typeOf for non-reified type parameter with star projection in upper bound
- [`KT-41789`](https://youtrack.jetbrains.com/issue/KT-41789) Missing DebugMetadata in inlined suspend lambda
- [`KT-41913`](https://youtrack.jetbrains.com/issue/KT-41913) NI: Kotlin 1.4 type inference breaks valid code
- [`KT-41934`](https://youtrack.jetbrains.com/issue/KT-41934) NI: a type variable for lambda parameter has been inferred to nullable type instead of not null one

### IDE

#### New Features

- [`KT-20775`](https://youtrack.jetbrains.com/issue/KT-20775) More kotlin kinds in new kotlin file/class menu
- [`KT-31331`](https://youtrack.jetbrains.com/issue/KT-31331) Improve: Optimize Import should remove unused unresolved imports
- [`KT-31500`](https://youtrack.jetbrains.com/issue/KT-31500) Smart enter: support get() clause
- [`KT-39231`](https://youtrack.jetbrains.com/issue/KT-39231) Injection: Add receiver of kotlin.text.toPattern to standard Kotlin injections
- [`KT-39844`](https://youtrack.jetbrains.com/issue/KT-39844) Add specific highlight for Enum class

#### Performance Improvements

- [`KT-39353`](https://youtrack.jetbrains.com/issue/KT-39353) Implement EnterBetweenBracesNoCommitDelegate
- [`KT-39720`](https://youtrack.jetbrains.com/issue/KT-39720) A lot of freezes in Kotlin project
- [`KT-41634`](https://youtrack.jetbrains.com/issue/KT-41634) Deadlock in org.jetbrains.kotlin.idea.framework.LibraryEffectiveKindProviderImpl.getEffectiveKind
- [`KT-41936`](https://youtrack.jetbrains.com/issue/KT-41936) Impossible to work with Kotlin 1.4 in 202 idea, idea eats all cpu

#### Fixes

- [`KT-10790`](https://youtrack.jetbrains.com/issue/KT-10790) "Move statement up" for @file-targeted annotation moves package declaration to bottom of file
- [`KT-15262`](https://youtrack.jetbrains.com/issue/KT-15262) "Generate toString()" is ignoring property if it has a getter
- [`KT-24352`](https://youtrack.jetbrains.com/issue/KT-24352) Method separators: displayed between properties, not displayed between companion object and function
- [`KT-29364`](https://youtrack.jetbrains.com/issue/KT-29364) "Extend selection" can't select lambda body with parameters
- [`KT-32403`](https://youtrack.jetbrains.com/issue/KT-32403) Clickable links in annotation parameters (like in TODOs)
- [`KT-32409`](https://youtrack.jetbrains.com/issue/KT-32409) Organizing imports should not remove imports while there are unresolved symbols
- [`KT-33131`](https://youtrack.jetbrains.com/issue/KT-33131) No indent before get/set method while editing extension var declaration
- [`KT-34566`](https://youtrack.jetbrains.com/issue/KT-34566) Too small indent after line break for multi line strings
- [`KT-34587`](https://youtrack.jetbrains.com/issue/KT-34587) "Move statement down" doesn't work for statement in constructor with end-of-line comment
- [`KT-34705`](https://youtrack.jetbrains.com/issue/KT-34705) "Move statement down" for penultimate statement with end-of-line comment in constructor leads to moving comma to the end of comment
- [`KT-34707`](https://youtrack.jetbrains.com/issue/KT-34707) "Move statement up" for last statement with end-of-line comment in constructor leads to moving comma to the end of comment
- [`KT-35424`](https://youtrack.jetbrains.com/issue/KT-35424) FIR IDE: Kotlin project does not see stdlib
- [`KT-35732`](https://youtrack.jetbrains.com/issue/KT-35732) URLs in String literals are not clickable
- [`KT-35859`](https://youtrack.jetbrains.com/issue/KT-35859) Language injection doesn't work with named arguments in different position
- [`KT-37210`](https://youtrack.jetbrains.com/issue/KT-37210) UAST: KtLightClassForSourceDeclaration.isInheritor sometimes returns the wrong result
- [`KT-37219`](https://youtrack.jetbrains.com/issue/KT-37219) File level OptIn annotation is not recognized by the IDE
- [`KT-39398`](https://youtrack.jetbrains.com/issue/KT-39398) Wrong import of unrelated object member is suggested for receiver
- [`KT-39457`](https://youtrack.jetbrains.com/issue/KT-39457) Separate decompiled declarations Light implementation from LightClasses infrastructure
- [`KT-39899`](https://youtrack.jetbrains.com/issue/KT-39899) KotlinOptimizeImportsRefactoringHelper: ISE: Attempt to modify PSI for non-committed Document
- [`KT-40578`](https://youtrack.jetbrains.com/issue/KT-40578) UAST: write accesses to Kotlin properties should resolve to setter
- [`KT-41290`](https://youtrack.jetbrains.com/issue/KT-41290) KotlinClassViaConstructorUSimpleReferenceExpression resolves to PsiMethod instead of PsiClass
- [`KT-42029`](https://youtrack.jetbrains.com/issue/KT-42029) HMPP, IDE: NPE from `FacetSerializationKt.getFacetPlatformByConfigurationElement` on project opening

### IDE. Completion

- [`KT-26235`](https://youtrack.jetbrains.com/issue/KT-26235) Kotlin methods/fields don't have icons in Java completion

### IDE. Debugger

- [`KT-39309`](https://youtrack.jetbrains.com/issue/KT-39309) Debugger: Prolonged "Collecting data" for variables when breakpoint is inside `respondHtml`
- [`KT-39435`](https://youtrack.jetbrains.com/issue/KT-39435) "Collecting data..." in debugger variables view never finishes
- [`KT-39717`](https://youtrack.jetbrains.com/issue/KT-39717) Debugger shows "Collecting data..." forever for instances of some class
- [`KT-40386`](https://youtrack.jetbrains.com/issue/KT-40386) Memory leak detected: 'org.jetbrains.kotlin.idea.debugger.coroutine.view.XCoroutineView'
- [`KT-41505`](https://youtrack.jetbrains.com/issue/KT-41505) Coroutines Debugger: “Access is allowed from event dispatch thread with IW lock only.”

### IDE. Gradle Integration

- [`KT-34271`](https://youtrack.jetbrains.com/issue/KT-34271) Support `pureKotlinSourceFolders` for MPP projects
- [`KT-37106`](https://youtrack.jetbrains.com/issue/KT-37106) Gradle + IDE integration: on creating source roots from Project tree IDEA creates incorrect settings

### IDE. Gradle. Script

- [`KT-35092`](https://youtrack.jetbrains.com/issue/KT-35092) “Unable to get Gradle home directory” popup and no build.gradle.kts highlighting right after creating a new project
- [`KT-37590`](https://youtrack.jetbrains.com/issue/KT-37590) Wrong notification for precompiled build script
- [`KT-39523`](https://youtrack.jetbrains.com/issue/KT-39523) Go to Declaration navigates to decompiled classfile instead of sources in case of jumping to Gradle plugin sources in buildSrc
- [`KT-39790`](https://youtrack.jetbrains.com/issue/KT-39790) List of standalone script should be saved between IDE restarts
- [`KT-39910`](https://youtrack.jetbrains.com/issue/KT-39910) build.gradle.kts isn't highlighted after import
- [`KT-39916`](https://youtrack.jetbrains.com/issue/KT-39916) init.gradle.kts isn't highlighted
- [`KT-40243`](https://youtrack.jetbrains.com/issue/KT-40243) gradle.kts: standalone script under build root isn't highlighted as standalone
- [`KT-41281`](https://youtrack.jetbrains.com/issue/KT-41281) Multiple Script Definitions warning shown in git project having multiple Gradle projects

### IDE. Hints

- [`KT-32368`](https://youtrack.jetbrains.com/issue/KT-32368) Rework Inline hints settings so that they look appropriate with the new UI in 2019.3
- [`KT-38027`](https://youtrack.jetbrains.com/issue/KT-38027) Support Code Vision feature in Kotlin

### IDE. Hints. Parameter Info

- [`KT-24172`](https://youtrack.jetbrains.com/issue/KT-24172) Parameter info marks signature as inapplicable when using argument labels
- [`KT-41617`](https://youtrack.jetbrains.com/issue/KT-41617) Parameter Info shows nothing inside already present type arguments of supertype
- [`KT-41645`](https://youtrack.jetbrains.com/issue/KT-41645) Add support for mixed named arguments to parameter info popup

### IDE. Inspections and Intentions

#### New Features

- [`KT-14578`](https://youtrack.jetbrains.com/issue/KT-14578) Suggest "Convert lambda to reference" intention for generic extension function
- [`KT-19321`](https://youtrack.jetbrains.com/issue/KT-19321) Warn if method with nullable return type always returns non-null
- [`KT-20718`](https://youtrack.jetbrains.com/issue/KT-20718) Add a quick fix for "this class has no constructor" error on 'expect' annotation classes
- [`KT-21223`](https://youtrack.jetbrains.com/issue/KT-21223) Add inspection for incomplete destructuring
- [`KT-22420`](https://youtrack.jetbrains.com/issue/KT-22420) Intention to replace a = b with b.also { a = it }
- [`KT-39930`](https://youtrack.jetbrains.com/issue/KT-39930) Add inspection for nullable Boolean in `if` condition
- [`KT-40016`](https://youtrack.jetbrains.com/issue/KT-40016) Replace 'a.toLowerCase() == b.toLowerCase()' with 'a.equals(b, ignoreCase = true)' inspection
- [`KT-40283`](https://youtrack.jetbrains.com/issue/KT-40283) Inspection which replaces `also`/`apply` with nested `forEach` to `onEach`
- [`KT-40769`](https://youtrack.jetbrains.com/issue/KT-40769) Add intention to replace isBlank/isNotBlank method negation

#### Fixes

- [`KT-12222`](https://youtrack.jetbrains.com/issue/KT-12222) Intention 'Convert to block body' should take nullability of overriden method into account when expression is of platform type
- [`KT-14395`](https://youtrack.jetbrains.com/issue/KT-14395) Lambda to Reference doesn't work for generic types
- [`KT-15846`](https://youtrack.jetbrains.com/issue/KT-15846) 'Change lambda expression return type' quick fix does nothing
- [`KT-15944`](https://youtrack.jetbrains.com/issue/KT-15944) IDEA doesn't suggest to replace deprecated get set operator functions when it used as operator
- [`KT-17222`](https://youtrack.jetbrains.com/issue/KT-17222) "Convert reference to lambda" creates red code for method with default argument values
- [`KT-18125`](https://youtrack.jetbrains.com/issue/KT-18125) "Wrap with let {...}" intention not available in all cases
- [`KT-20438`](https://youtrack.jetbrains.com/issue/KT-20438) Naming convention inspections: factory functions that are named like classes are flagged
- [`KT-24138`](https://youtrack.jetbrains.com/issue/KT-24138) Incorrect behavior in "convert reference to lambda" with new inference enabled, on function reference with default arguments
- [`KT-29844`](https://youtrack.jetbrains.com/issue/KT-29844) "Create class from usage" should mark constructor of created class as internal if its parameters have internal visibility
- [`KT-30928`](https://youtrack.jetbrains.com/issue/KT-30928) "Show hints for suspend calls" is too easy to enable and hard to disable
- [`KT-31749`](https://youtrack.jetbrains.com/issue/KT-31749) "Surround with null check" produces incorrect check for 'in' expression
- [`KT-32963`](https://youtrack.jetbrains.com/issue/KT-32963) Don't suggest `java` directory of a JVM source set in multiplatform project as a target for `Create actual` quick fix
- [`KT-33211`](https://youtrack.jetbrains.com/issue/KT-33211) Quickfix "add parameter" for method references should infer functional type instead of KFunction
- [`KT-33258`](https://youtrack.jetbrains.com/issue/KT-33258) "Merge 'if's" intention drops comment before nested if
- [`KT-34572`](https://youtrack.jetbrains.com/issue/KT-34572) Convert to block body action improperly works with suppress annotations
- [`KT-35128`](https://youtrack.jetbrains.com/issue/KT-35128) Intention `Convert member to extension` hides property delegate text with single line comment
- [`KT-35214`](https://youtrack.jetbrains.com/issue/KT-35214) Intention `Put parameters on one line`: don't suggest if parameters has end-of-line comments
- [`KT-35320`](https://youtrack.jetbrains.com/issue/KT-35320) False positive "Replace explicit parameter 'x' with 'it'" in 'when' expression which returns lambda
- [`KT-35525`](https://youtrack.jetbrains.com/issue/KT-35525) False positive intention for 'run': "Convert to 'let'" when invoked without receiver
- [`KT-35526`](https://youtrack.jetbrains.com/issue/KT-35526) Intention "Eliminate argument of 'when'" is broken for 'when' expression without 'else' branch
- [`KT-35805`](https://youtrack.jetbrains.com/issue/KT-35805) FoldInitializerAndIfToElvis: should not add new line for multiline initializer
- [`KT-36051`](https://youtrack.jetbrains.com/issue/KT-36051) IfThenToSafeAccessInspection: do not report if condition is SENSELESS_COMPARISON
- [`KT-37748`](https://youtrack.jetbrains.com/issue/KT-37748) "Convert anonymous function to lambda expression" intention does not add necessary lambda type parameter
- [`KT-37841`](https://youtrack.jetbrains.com/issue/KT-37841) IllegalStateException after "add non-null asserted call" on nullable function reference
- [`KT-38139`](https://youtrack.jetbrains.com/issue/KT-38139) False negative "Add suspend modifier" quickfix when suspend function is called in inline lambda
- [`KT-38267`](https://youtrack.jetbrains.com/issue/KT-38267) False positive "Call on collection type may be reduced" with Java platform types: suggested to reduce 'mapNotNull' call to 'map'
- [`KT-38282`](https://youtrack.jetbrains.com/issue/KT-38282) False positive "Remove redundant spread operator" inspection with array as class property or fun argument
- [`KT-39200`](https://youtrack.jetbrains.com/issue/KT-39200) False positive "Redundant qualifier name" with same-named member object and companion property
- [`KT-39263`](https://youtrack.jetbrains.com/issue/KT-39263) False positive "Variable should be inlined" for override value in  initialized object
- [`KT-39311`](https://youtrack.jetbrains.com/issue/KT-39311) Batch quick fix name for "Change file's package" is truncated
- [`KT-39393`](https://youtrack.jetbrains.com/issue/KT-39393) "Convert anonymous function to lambda expression" intention does not add necessary lambda type parameter for outer function
- [`KT-39454`](https://youtrack.jetbrains.com/issue/KT-39454) False positive "Unused symbol" with private anonymous object property
- [`KT-39467`](https://youtrack.jetbrains.com/issue/KT-39467) False negative "Move variable declaration into when" if a variable declaration is placed on a new line
- [`KT-39490`](https://youtrack.jetbrains.com/issue/KT-39490) 'Wrap with ?.let' quickfix put the receiver in `let` lambda
- [`KT-39552`](https://youtrack.jetbrains.com/issue/KT-39552) Merge 'if's intention drops comment after nested if
- [`KT-39604`](https://youtrack.jetbrains.com/issue/KT-39604) "Package directive doesn't match file location" quick fix does not insert a space between keyword `package` and the package name
- [`KT-39772`](https://youtrack.jetbrains.com/issue/KT-39772) "Redundant  'Unit'" should support lambdas
- [`KT-40215`](https://youtrack.jetbrains.com/issue/KT-40215) "Create abstract function" quick fix suggested even though surrounding class is non-abstract
- [`KT-40448`](https://youtrack.jetbrains.com/issue/KT-40448) "Convert call chain into sequence": support functions added in Kotlin 1.4
- [`KT-40558`](https://youtrack.jetbrains.com/issue/KT-40558) False positive "Move to class body" intention on data class constructor property
- [`KT-41338`](https://youtrack.jetbrains.com/issue/KT-41338) False positive "Redundant 'asSequence' call" when Map.Entry properties are used.
- [`KT-41615`](https://youtrack.jetbrains.com/issue/KT-41615) "Unused equals expression" inspection: highlight whole expression with yellow background

### IDE. JS

- [`KT-39319`](https://youtrack.jetbrains.com/issue/KT-39319) KJS: Support debugging through new Intellij 202 API
- [`KT-41328`](https://youtrack.jetbrains.com/issue/KT-41328) KJS / Gradle: explicitApi mode doesn't work

### IDE. KDoc

- [`KT-17926`](https://youtrack.jetbrains.com/issue/KT-17926) IDE should show documentation for a class if the constructor has no docs.
- [`KT-19069`](https://youtrack.jetbrains.com/issue/KT-19069) KDoc: show default argument values
- [`KT-37132`](https://youtrack.jetbrains.com/issue/KT-37132) Redundant @NotNull annotation in a Quick Documentation pop-up

### IDE. Misc

- [`KT-39327`](https://youtrack.jetbrains.com/issue/KT-39327) Get rid of usages of internal classes ModuleOrderEntryImpl and LibraryImpl
- [`KT-40455`](https://youtrack.jetbrains.com/issue/KT-40455) Improve support for EditorConfig

### IDE. Navigation

- [`KT-24616`](https://youtrack.jetbrains.com/issue/KT-24616) Find usages fails to find setter usage
- [`KT-38762`](https://youtrack.jetbrains.com/issue/KT-38762) "Cannot access 'java.io.Serializable' which is a supertype of 'kotlin.Int'" brokes navigation to constructor parameter declaration
- [`KT-39558`](https://youtrack.jetbrains.com/issue/KT-39558) Call Hierarchy shows references from KDoc
- [`KT-40788`](https://youtrack.jetbrains.com/issue/KT-40788) "Find usages" on Java getter overridden in Kotlin doesn't find synthetic property usage when it is called without base declaration
- [`KT-40960`](https://youtrack.jetbrains.com/issue/KT-40960) Unable to find usages in java of Kotlin constructor in library when sources is attached.

### IDE. Project View

- [`KT-37528`](https://youtrack.jetbrains.com/issue/KT-37528) 'Add Kotlin File/Class' suggests file before class

### IDE. Refactorings

- [`KT-19744`](https://youtrack.jetbrains.com/issue/KT-19744) "Change Signature" is not available on `constructor` keyword in primary constructor
- [`KT-22170`](https://youtrack.jetbrains.com/issue/KT-22170) "Change Signature" ignores Java usages of methods marked with @JvmStatic
- [`KT-37517`](https://youtrack.jetbrains.com/issue/KT-37517) Invalid qualified name on copy-paste in build.gradle.kts

### IDE. Run Configurations

- [`KT-24463`](https://youtrack.jetbrains.com/issue/KT-24463) MPP, Intellij runner: Run does not add resource directory to classpath
- [`KT-36370`](https://youtrack.jetbrains.com/issue/KT-36370) Hide run gutter icons for not yet implemented targets in multiplatform projects
- [`KT-39788`](https://youtrack.jetbrains.com/issue/KT-39788) MPP, Gradle runner: Run does not add resource directory to classpath on project reopen without Gradle sync

### IDE. Scratch

- [`KT-40557`](https://youtrack.jetbrains.com/issue/KT-40557) IDE / Scratch: .kt files are treated as Kotlin scratches, opening fails

### IDE. Script

- [`KT-35825`](https://youtrack.jetbrains.com/issue/KT-35825) Custom kotlin scripts have no project import suggestions in sub modules.
- [`KT-39796`](https://youtrack.jetbrains.com/issue/KT-39796) Performance of KotlinScriptDependenciesClassFinder

### IDE. Tests Support

- [`KT-28854`](https://youtrack.jetbrains.com/issue/KT-28854) Run/Debug configurations: "Redirect input from" option is not available for Kotlin apps
- [`KT-36909`](https://youtrack.jetbrains.com/issue/KT-36909) IDE attempts to run non-JVM tests launched from context menu as JVM ones

### IDE. Wizards

- [`KT-37965`](https://youtrack.jetbrains.com/issue/KT-37965) New Project wizard 1.4+: adding JUnit5 test library add dependency to runner
- [`KT-40527`](https://youtrack.jetbrains.com/issue/KT-40527) Node.JS application template in New Project Wizard
- [`KT-40874`](https://youtrack.jetbrains.com/issue/KT-40874) Open new project wizard help page in browser when clicking help button in new project wizard
- [`KT-41417`](https://youtrack.jetbrains.com/issue/KT-41417) Add react template to new project wizard
- [`KT-41418`](https://youtrack.jetbrains.com/issue/KT-41418) Wizard: Support KJS compiler choice
- [`KT-41958`](https://youtrack.jetbrains.com/issue/KT-41958) New project wizard: Backend/Console applications template with Groovy DSL missing compileTestKotlin block

### JavaScript

- [`KT-39088`](https://youtrack.jetbrains.com/issue/KT-39088) [ KJS / IR ] IllegalStateException: Concrete fake override IrBasedFunctionHandle
- [`KT-39367`](https://youtrack.jetbrains.com/issue/KT-39367) KJS: .d.ts generation not working for objects
- [`KT-39378`](https://youtrack.jetbrains.com/issue/KT-39378) KJS / IR: "IllegalStateException: Operation is unsupported" with binaries.executable() and external function inside `for` loop  with Iterator as return type

### Middle-end. IR

- [`KT-40193`](https://youtrack.jetbrains.com/issue/KT-40193) IR: pluginContext.referenceClass() is not resolving typealias
- [`KT-41181`](https://youtrack.jetbrains.com/issue/KT-41181) Kotlin/Native 1.4.0 compiler fails on data class with >120 fields

### Native. C and ObjC Import

- [`KT-41639`](https://youtrack.jetbrains.com/issue/KT-41639) Use LazyIR for enums and structs from cached libraries
- [`KT-41655`](https://youtrack.jetbrains.com/issue/KT-41655) Native: "type cnames.structs.S  of return value is not supported here: doesn't correspond to any C type" when accessing forward-declared-struct-typed C global variable

### Native. ObjC Export

- [`KT-38641`](https://youtrack.jetbrains.com/issue/KT-38641) Kotlin-Multiplatform: Objective-C `description` method name collision in Swift

### Tools. Android Extensions

- [`KT-39981`](https://youtrack.jetbrains.com/issue/KT-39981) Android parcel 'java.lang.VerifyError: Bad return type'

### Tools. CLI

- [`KT-35111`](https://youtrack.jetbrains.com/issue/KT-35111) Extend CLI compilers help with link to online docs

### Tools. Commonizer

- [`KT-41220`](https://youtrack.jetbrains.com/issue/KT-41220) [Commonizer] Short-circuit type aliases
- [`KT-41247`](https://youtrack.jetbrains.com/issue/KT-41247) [Commonizer] Missed supertypes in commonized class
- [`KT-41643`](https://youtrack.jetbrains.com/issue/KT-41643) Commonizer exception for targets [ios_x64], [macos_x64]

### Tools. Gradle

- [`KT-33908`](https://youtrack.jetbrains.com/issue/KT-33908) Make Kotlin Gradle plugin compatible with the Gradle configuration cache
- [`KT-35341`](https://youtrack.jetbrains.com/issue/KT-35341) KotlinCompile: Symlinked friend paths are no longer supported

### Tools. Gradle. JS

#### New Features

- [`KT-35330`](https://youtrack.jetbrains.com/issue/KT-35330) Allow to customise generated package.json
- [`KT-39825`](https://youtrack.jetbrains.com/issue/KT-39825) Provide single point of Webpack configuration in Gradle script
- [`KT-41054`](https://youtrack.jetbrains.com/issue/KT-41054) Support Yarn resolutions
- [`KT-41340`](https://youtrack.jetbrains.com/issue/KT-41340) Add flag to suppress kotlin2js deprecation message
- [`KT-41566`](https://youtrack.jetbrains.com/issue/KT-41566) Kotlin/JS: Support JavaScript Library distribution

#### Fixes

- [`KT-39515`](https://youtrack.jetbrains.com/issue/KT-39515) package.json is regenerated without a visible reason
- [`KT-39995`](https://youtrack.jetbrains.com/issue/KT-39995) Collect statistic about generateExternals feature
- [`KT-40087`](https://youtrack.jetbrains.com/issue/KT-40087) Kotlin/JS, IR backend: browserRun: update in continuous mode fails: "ENOENT: no such file or directory" referring output .js
- [`KT-40159`](https://youtrack.jetbrains.com/issue/KT-40159) Implement workaround / fix for webpack's "window is not defined"
- [`KT-40178`](https://youtrack.jetbrains.com/issue/KT-40178) Browser run task prints output in TeamCity format
- [`KT-40201`](https://youtrack.jetbrains.com/issue/KT-40201) Kotlin/JS: Gradle: public package.json has empty `devDependencies {}`
- [`KT-40342`](https://youtrack.jetbrains.com/issue/KT-40342) [Gradle, JS, Maven] "Cannot find module" generating fake NPM module from Maven dependendency
- [`KT-40462`](https://youtrack.jetbrains.com/issue/KT-40462) Collect statistic about usages of kotlin.js.generate.executable.default option
- [`KT-40753`](https://youtrack.jetbrains.com/issue/KT-40753) Type script definition file is not referenced as types in the package.json
- [`KT-40812`](https://youtrack.jetbrains.com/issue/KT-40812) Node.JS run working directory
- [`KT-40865`](https://youtrack.jetbrains.com/issue/KT-40865) KJS / Gradle: Registering a task with a type that directly extends AbstractTask has been deprecated
- [`KT-41125`](https://youtrack.jetbrains.com/issue/KT-41125) Bump NPM versions in 1.4.20
- [`KT-41286`](https://youtrack.jetbrains.com/issue/KT-41286) KJS / Gradle: args order in runTask is changed in 1.4.0
- [`KT-41475`](https://youtrack.jetbrains.com/issue/KT-41475) KJS / Gradle: debug mode doesn't support custom launchers in karma config
- [`KT-41662`](https://youtrack.jetbrains.com/issue/KT-41662) Kotlin/JS: with CSS support mode == "extract" browser test fails even without CSS usage: "Error in config file!"

### Tools. Gradle. Native

- [`KT-39764`](https://youtrack.jetbrains.com/issue/KT-39764) Assertions are disabled when running K/N compiler in Gradle process
- [`KT-39999`](https://youtrack.jetbrains.com/issue/KT-39999) Cocoapods plugin's dummy header cannot be compiled
- [`KT-41367`](https://youtrack.jetbrains.com/issue/KT-41367) CocoaPods Gradle plugin: support git repository dependency

### Tools. Incremental Compile

- [`KT-37446`](https://youtrack.jetbrains.com/issue/KT-37446) Incremental analysis for Java sources fails when run on JDK 11

### Tools. J2K

- [`KT-20421`](https://youtrack.jetbrains.com/issue/KT-20421) J2K: SUPERTYPE_NOT_INITIALIZED for object extending base class
- [`KT-37298`](https://youtrack.jetbrains.com/issue/KT-37298) J2K: implicit widening conversion for whole argument expression is transformed to cast on subexpression
- [`KT-38879`](https://youtrack.jetbrains.com/issue/KT-38879) J2K loses class annotations when converting class to object
- [`KT-39149`](https://youtrack.jetbrains.com/issue/KT-39149) J2K fails with augmented assignment operators when multiplying int by a non-int
- [`KT-40359`](https://youtrack.jetbrains.com/issue/KT-40359) J2K: Conversion of invalid octal numbers throws NumberFormatException
- [`KT-40363`](https://youtrack.jetbrains.com/issue/KT-40363) J2K: Converting HEX integer literal in for-loop throws NumberFormatException

### Tools. Scripts

- [`KT-38404`](https://youtrack.jetbrains.com/issue/KT-38404) Scripting API: Provide Location of Annotation Usage


## 1.4.10

### Compiler

#### Performance Improvements

- [`KT-41149`](https://youtrack.jetbrains.com/issue/KT-41149) NI: Upgraded project from 1.3.72 to 1.4.0 hangs during build
- [`KT-41335`](https://youtrack.jetbrains.com/issue/KT-41335) Kotlin Out of Memory When evaluating expression
- [`KT-41400`](https://youtrack.jetbrains.com/issue/KT-41400) NI: Huge performance regression for kotlin compiler from 1.3.72 to 1.4.0 due to using list of dozen lambdas in a call

#### Fixes

- [`KT-41005`](https://youtrack.jetbrains.com/issue/KT-41005) Coercion to Unit doesn't take into account nullability of a return type for lambda
- [`KT-41043`](https://youtrack.jetbrains.com/issue/KT-41043) NI: StackOverflowError through `PostponedArgumentInputTypesResolver.getAllDeeplyRelatedTypeVariables`
- [`KT-41135`](https://youtrack.jetbrains.com/issue/KT-41135) Type Inference Regression For Property Delegate With Receiver Type
- [`KT-41140`](https://youtrack.jetbrains.com/issue/KT-41140) Unresolved reference to parameter of a catch block from lambda expression on 1.4.0
- [`KT-41150`](https://youtrack.jetbrains.com/issue/KT-41150) IllegalStateException: Couldn't obtain compiled function body for public final inline fun
- [`KT-41164`](https://youtrack.jetbrains.com/issue/KT-41164) NI: "IllegalStateException: Error type encountered" with callbackFlow builder inside condition
- [`KT-41202`](https://youtrack.jetbrains.com/issue/KT-41202) Type inference fails in 1.4.0
- [`KT-41218`](https://youtrack.jetbrains.com/issue/KT-41218) HMPP: arrayList declarations are visible both from stdlib-common and stdlib-jvm and lead to false-positive resolution ambiguity in IDE
- [`KT-41308`](https://youtrack.jetbrains.com/issue/KT-41308) 1.4.0 Type inference regression in suspend blocks with elvis operator expressions
- [`KT-41357`](https://youtrack.jetbrains.com/issue/KT-41357) ClassCastException for unstable smart cast on a property call receiver
- [`KT-41386`](https://youtrack.jetbrains.com/issue/KT-41386) NI: Type mismatch with generic type parameters
- [`KT-41426`](https://youtrack.jetbrains.com/issue/KT-41426) Operator compareTo is not called with nullable type
- [`KT-41430`](https://youtrack.jetbrains.com/issue/KT-41430) Broken choosing overload by lambda return type inside builder inference
- [`KT-41470`](https://youtrack.jetbrains.com/issue/KT-41470) Wrong nullability assertion is generated when using the BuilderInference annotation
- [`KT-41482`](https://youtrack.jetbrains.com/issue/KT-41482) Add a fallback compiler flag to disable the unified null checks behavior

### IDE

- [`KT-41325`](https://youtrack.jetbrains.com/issue/KT-41325) SOE in IDEKotlinAsJavaSupport
- [`KT-41390`](https://youtrack.jetbrains.com/issue/KT-41390) Typo: equals & hashCode are written with the first uppercase letter

### IDE. Code Style, Formatting

- [`KT-41314`](https://youtrack.jetbrains.com/issue/KT-41314) Formatter: Frequent freezes when reformatting code (TrailingCommaPostFormatProcessor)

### IDE. Debugger

- [`KT-40417`](https://youtrack.jetbrains.com/issue/KT-40417) Coroutines Debugger: “No coroutine information found” in case of main() entry-point without explicit debug-artifact

### IDE. Gradle. Script

- [`KT-39542`](https://youtrack.jetbrains.com/issue/KT-39542) EA-218043: java.util.NoSuchElementException: No element of given type found (GradleBuildRootsManager)
- [`KT-41283`](https://youtrack.jetbrains.com/issue/KT-41283) Gradle scripts unable to support 1.4 language level features yet

### IDE. Inspections and Intentions

- [`KT-41264`](https://youtrack.jetbrains.com/issue/KT-41264) Disable “Redundant inner modifier” in 1.4.10
- [`KT-41395`](https://youtrack.jetbrains.com/issue/KT-41395) Inspection description misses a space (needs to be lowercase)

### IDE. REPL

- [`KT-40898`](https://youtrack.jetbrains.com/issue/KT-40898) REPL: "IllegalAccessError: tried to access field" caused by log4j

### IDE. Wizards

- [`KT-38921`](https://youtrack.jetbrains.com/issue/KT-38921) New project wizard: Backend/Console applications template with Groovy DSL generates build.gradle with KotlinCompile instead of compileKotlin

### JavaScript

- [`KT-38059`](https://youtrack.jetbrains.com/issue/KT-38059) Support arrays passed as named arguments to varargs
- [`KT-40964`](https://youtrack.jetbrains.com/issue/KT-40964) KJS / IR: don't generate "import" (short names) for external interfaces
- [`KT-41081`](https://youtrack.jetbrains.com/issue/KT-41081) KJS IR: nativeGetter, nativeSetter, nativeInvoke are not supported

### Libraries

- [`KT-41320`](https://youtrack.jetbrains.com/issue/KT-41320) Actual  kotlin.test annotation typealiases are inaccessible in modular environment

### Middle-end. IR

- [`KT-41324`](https://youtrack.jetbrains.com/issue/KT-41324) IR: "Compilation failed: null" caused by StackOverflowError in compiler in multi-module project

### Native. C and ObjC Import

- [`KT-39762`](https://youtrack.jetbrains.com/issue/KT-39762) cinterop on 1.4-M2 doesn't include @Deprecated Kotlin declaration for C declaration it fails to import

### Native. ObjC Export

- [`KT-39206`](https://youtrack.jetbrains.com/issue/KT-39206) New line characters in @Deprecated annotation cause syntax error in Kotlin/native exported header
- [`KT-40976`](https://youtrack.jetbrains.com/issue/KT-40976) "Unrecognized selector sent to instance" exception invoking suspending lambda from Swift in Native iOS project

### Reflection

- [`KT-40842`](https://youtrack.jetbrains.com/issue/KT-40842) "AssertionError: Built-in class kotlin.Any is not found" on java modular run

### Tools. Compiler Plugins

- [`KT-41321`](https://youtrack.jetbrains.com/issue/KT-41321) Upgrading to 1.4.0 fails compiling native with <x> is not bound error

### Tools. Gradle. Multiplatform

- [`KT-41083`](https://youtrack.jetbrains.com/issue/KT-41083) Transitive dependency on an MPP with host-specific source sets fails to resolve: "Couldn't resolve metadata artifact..."

### Tools. Gradle. Native

- [`KT-40834`](https://youtrack.jetbrains.com/issue/KT-40834) Cannot build Kotlin Multiplatform project on Windows 10 64-bit when the Cocoapods plugin is applied

### Tools. Scripts

- [`KT-35925`](https://youtrack.jetbrains.com/issue/KT-35925) REPL: Springboot autoconfiguration problem (META-INF/spring.factories not found ?)

### Tools. kapt

- [`KT-41313`](https://youtrack.jetbrains.com/issue/KT-41313) kapt 1.4.0 throws "ZipException: zip END header not found", when Graal SVM jar in classpath


## 1.4.0

### Compiler

#### New Features

- [`KT-23729`](https://youtrack.jetbrains.com/issue/KT-23729) Provide a way to generate JVM default method bodies in interfaces delegating to DefaultImpls
- [`KT-30330`](https://youtrack.jetbrains.com/issue/KT-30330) Introduce KotlinNothingValueException and throw it instead of NPE on expressions of type Nothing
- [`KT-38435`](https://youtrack.jetbrains.com/issue/KT-38435) Support suspend conversion on callable references in JVM backend

#### Fixes

- [`KT-35483`](https://youtrack.jetbrains.com/issue/KT-35483) NI: compatibility mode
- [`KT-39728`](https://youtrack.jetbrains.com/issue/KT-39728) Declarations from `kotlin.reflect` resolved to expect-classes even in JVM modules in IDE
- [`KT-40153`](https://youtrack.jetbrains.com/issue/KT-40153) REPL IDE services completion fails on imports completion
- [`KT-40404`](https://youtrack.jetbrains.com/issue/KT-40404) Mixed named/positional arguments: argument can be passed twice
- [`KT-40544`](https://youtrack.jetbrains.com/issue/KT-40544) NI: "TYPE_MISMATCH: Required: MutableList<out T!> Found: List<T>" caused by Java interface function
- [`KT-40555`](https://youtrack.jetbrains.com/issue/KT-40555) NI: Spread operator allows inferred nullable types
- [`KT-40646`](https://youtrack.jetbrains.com/issue/KT-40646) NI: TYPE_MISMATCH: "inferred type is Unit but Observer<T> was expected" caused by LieData.observe inference
- [`KT-40691`](https://youtrack.jetbrains.com/issue/KT-40691) False positive CAPTURED_VAL_INITIALIZATION with EXACTLY_ONCE contract
- [`KT-40693`](https://youtrack.jetbrains.com/issue/KT-40693) UnsupportedOperationException: no descriptor for type constructor of (CapturedType(out TResult)..CapturedType(out TResult)?)
- [`KT-40824`](https://youtrack.jetbrains.com/issue/KT-40824) Usages of a typealias lose nullability and annotations in deserialization
- [`KT-40843`](https://youtrack.jetbrains.com/issue/KT-40843) Unhandled exception for suspending methods that return Result type
- [`KT-40869`](https://youtrack.jetbrains.com/issue/KT-40869) Recursion computation inside compiler resolve on a correct code
- [`KT-40893`](https://youtrack.jetbrains.com/issue/KT-40893) Error "Captured values initialization is forbidden due to possible reassignment" when attempting to use the plusAssign operator with a java list inside an inline function
- [`KT-40919`](https://youtrack.jetbrains.com/issue/KT-40919) kotlin.collections.ArrayDeque requires an explicit import when compiling with kotlinc 1.4-RC and -language-version 1.3
- [`KT-40920`](https://youtrack.jetbrains.com/issue/KT-40920) Regression in JvmDefault: incorrect access to missing DefaultImpls on default methods in Java interface overriding Kotlin interface
- [`KT-40978`](https://youtrack.jetbrains.com/issue/KT-40978) Prohibit using suspend functions as SAM in fun interfaces

### Docs & Examples

- [`KT-35218`](https://youtrack.jetbrains.com/issue/KT-35218) Fix misleading in JavaDoc for `createTempDir`/`createTempFile`
- [`KT-36981`](https://youtrack.jetbrains.com/issue/KT-36981) Provide a visual illustration of source sets structure generated by `ios()`, `watchos()`, `tvos()` presets
- [`KT-38050`](https://youtrack.jetbrains.com/issue/KT-38050) Language Guide: MPP reference: add sample of language settings for all roots instead of common root only

### IDE

- [`KT-30265`](https://youtrack.jetbrains.com/issue/KT-30265) IDE, MPP: False negative TYPE_PARAMETER_AS_REIFIED in common code
- [`KT-40494`](https://youtrack.jetbrains.com/issue/KT-40494) UAST: "NoSuchElementException: No element of given type found" with use-site target annotation
- [`KT-40639`](https://youtrack.jetbrains.com/issue/KT-40639) Shift IDE plugins updater numbers for Kotlin plugin

### IDE. Code Style, Formatting

- [`KT-40636`](https://youtrack.jetbrains.com/issue/KT-40636) Hard freeze on formatter: infinite recursion

### IDE. Gradle Integration

- [`KT-30116`](https://youtrack.jetbrains.com/issue/KT-30116) IDE: Unresolved reference in MPP module (androidMain source set) for annotation from common module (defined in commonMain and with JVM target)

### IDE. Gradle. Script

- [`KT-34552`](https://youtrack.jetbrains.com/issue/KT-34552) Deadlock in ScriptDefinitionsManager
- [`KT-40675`](https://youtrack.jetbrains.com/issue/KT-40675) Gradle build file is not highlighted until navigating to symbol

### IDE. JS

- [`KT-40461`](https://youtrack.jetbrains.com/issue/KT-40461) Create new projects with kotlin.js.generate.executable.default=false

### IDE. Script

- [`KT-39547`](https://youtrack.jetbrains.com/issue/KT-39547) Kotlin script support freezes IDEA
- [`KT-40242`](https://youtrack.jetbrains.com/issue/KT-40242) gradle.kts: Deadlock in ScriptClassRootsUpdater

### IDE. Wizards

- [`KT-36153`](https://youtrack.jetbrains.com/issue/KT-36153) New Project Wizard: provide more referential info on project structure editor screen
- [`KT-39904`](https://youtrack.jetbrains.com/issue/KT-39904) New Project wizard 1.4: update Frontend Application to make it run with JS IR
- [`KT-40149`](https://youtrack.jetbrains.com/issue/KT-40149) Gradle project wizard: templates for Kotlin/JS are not properly formatted

### JavaScript

- [`KT-25859`](https://youtrack.jetbrains.com/issue/KT-25859) JS: support function references to functions with vararg if expected type ends with repeated vararg element type
- [`KT-40083`](https://youtrack.jetbrains.com/issue/KT-40083) K/JS-IR: java.lang.IllegalStateException: has not acquired a symbol yet
- [`KT-40892`](https://youtrack.jetbrains.com/issue/KT-40892) KJS, IR: Unresolved references on importing classes from kotlinx-nodejs

### Libraries

- [`KT-39051`](https://youtrack.jetbrains.com/issue/KT-39051) Libraries native artifacts are published without sources

### Tools. Gradle

- [`KT-27816`](https://youtrack.jetbrains.com/issue/KT-27816) Provide a possibility to specify intermediate source sets between platform-agnostic and platform-specific test source sets
- [`KT-37720`](https://youtrack.jetbrains.com/issue/KT-37720) Replace ArtifactTransform with TransformAction
- [`KT-40559`](https://youtrack.jetbrains.com/issue/KT-40559) Adding the stdlib by default triggers warning in the Android Gradle Plugin

### Tools. Gradle. JS

- [`KT-40093`](https://youtrack.jetbrains.com/issue/KT-40093) Incorrect updating version of Kotlin/JS dependencies in package.json

### Tools. Gradle. Multiplatform

- [`KT-27320`](https://youtrack.jetbrains.com/issue/KT-27320) Provide a way to reuse same sources for similar Native target
- [`KT-40058`](https://youtrack.jetbrains.com/issue/KT-40058) NPE from mpp gradle plugin on kotlinx.benchmarks

### Tools. Gradle. Native

- [`KT-40801`](https://youtrack.jetbrains.com/issue/KT-40801) Gradle CocoaPods integration: Cannot change a framework name


## 1.4-RC

### Backend. Native

- [`KT-40209`](https://youtrack.jetbrains.com/issue/KT-40209) java.lang.UnsupportedOperationException: org.jetbrains.kotlin.ir.declarations.impl.IrValueParameterImpl@76484173
- [`KT-40367`](https://youtrack.jetbrains.com/issue/KT-40367) Kotlin/Native-Swift interop (iOS): Array member initialization failing in release builds

### Compiler

#### Fixes

- [`KT-31025`](https://youtrack.jetbrains.com/issue/KT-31025) Type mismatch when callable reference is resolved with a functional expected type and SAM conversion
- [`KT-37388`](https://youtrack.jetbrains.com/issue/KT-37388) Consider relaxing rules about inferring Nothing inside special constructions (if, try, when)
- [`KT-37717`](https://youtrack.jetbrains.com/issue/KT-37717) NI: "IllegalStateException: Error type encountered" with @BuilderInference
- [`KT-38427`](https://youtrack.jetbrains.com/issue/KT-38427) New inference in branched conditions (if, when) results in odd behavior with inconsistent compiler warnings and runtime errors
- [`KT-38899`](https://youtrack.jetbrains.com/issue/KT-38899) NI: False positive IMPLICIT_NOTHING_TYPE_ARGUMENT_IN_RETURN_POSITION leads to NPE
- [`KT-39468`](https://youtrack.jetbrains.com/issue/KT-39468) NI: overload resolution ambiguity between functions passing `T` and `Foo<T>` with a contravariant receiver
- [`KT-39618`](https://youtrack.jetbrains.com/issue/KT-39618) NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER: unable to infer generic type on @BuilderInference annotated lambda parameter with receiver type
- [`KT-39633`](https://youtrack.jetbrains.com/issue/KT-39633) NI: Incorrect type parameter instantiation based on contravariant type argument
- [`KT-39691`](https://youtrack.jetbrains.com/issue/KT-39691) NI: Missing SAM conversion for nullable lambda
- [`KT-39860`](https://youtrack.jetbrains.com/issue/KT-39860) Make Kotlin binaries publicly available (set KotlinCompilerVersion.IS_PRE_RELEASE = false)
- [`KT-39900`](https://youtrack.jetbrains.com/issue/KT-39900) NI: Incorrect type inference in a lambda returning Unit
- [`KT-39925`](https://youtrack.jetbrains.com/issue/KT-39925) New JVM default compilation mode doesn't check that JVM target is 1.8
- [`KT-39943`](https://youtrack.jetbrains.com/issue/KT-39943) Write information about all-compatibility mode in metadata
- [`KT-39953`](https://youtrack.jetbrains.com/issue/KT-39953) NI: ClassCastException "cannot be cast to java.lang.Void" with if-else in return statement in ANdroid project
- [`KT-40045`](https://youtrack.jetbrains.com/issue/KT-40045) NI: lambda’s receiver type isn't inferred properly
- [`KT-40057`](https://youtrack.jetbrains.com/issue/KT-40057) NI: provideDelegate org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: wrong bytecode generated for static initializer
- [`KT-40060`](https://youtrack.jetbrains.com/issue/KT-40060) NI: postponed variable from the builder inference flows to back-end and leads to throw an exception
- [`KT-40112`](https://youtrack.jetbrains.com/issue/KT-40112) Kotlin Gradle DSL: COMPATIBILITY_WARNING on `kotlin.sourceSets` block
- [`KT-40113`](https://youtrack.jetbrains.com/issue/KT-40113) Kotlin Gradle DSL: "Expression 'main' cannot be invoked as a function" for `distributions.main` DSL block
- [`KT-40128`](https://youtrack.jetbrains.com/issue/KT-40128) Introduce compiler key to disable compatibility resolution mechanism for new inference features
- [`KT-40151`](https://youtrack.jetbrains.com/issue/KT-40151) NI: postponed variable isn't substituted for top-level CR inside builder inference
- [`KT-40214`](https://youtrack.jetbrains.com/issue/KT-40214) AbstractMethodError in gradle subplugin which is used in Android app
- [`KT-40234`](https://youtrack.jetbrains.com/issue/KT-40234) Deprecation level "hidden" has no effect on callable reference argument
- [`KT-40247`](https://youtrack.jetbrains.com/issue/KT-40247) NI: false positive "function should be called from coroutine or another suspend function" for suspend invoke operator in try-catch
- [`KT-40254`](https://youtrack.jetbrains.com/issue/KT-40254) Rewrite at slice with two callable reference arguments
- [`KT-40269`](https://youtrack.jetbrains.com/issue/KT-40269) NI: "disabled Unit conversions" error has appeared on green code
- [`KT-40337`](https://youtrack.jetbrains.com/issue/KT-40337) NI: false positive "function should be called from coroutine or another suspend function" for suspend invoke operator in `when` block
- [`KT-40406`](https://youtrack.jetbrains.com/issue/KT-40406) Prohibit reflection on adapted callable references

### IDE

- [`KT-39968`](https://youtrack.jetbrains.com/issue/KT-39968) Paths in KotlinJavaRuntime library aren't updated after you run IDE from a different directory
- [`KT-39989`](https://youtrack.jetbrains.com/issue/KT-39989) NullPointerException when opening Kotlin facets in Project Structure dialog in IDEA 192
- [`KT-40311`](https://youtrack.jetbrains.com/issue/KT-40311) Create change_notes for 1.4 in IDE plugin description

### IDE. Debugger

- [`KT-39808`](https://youtrack.jetbrains.com/issue/KT-39808) (CoroutineDebugger) Doesn't start with kotlinx-coroutines-core >= 1.3.6
- [`KT-40073`](https://youtrack.jetbrains.com/issue/KT-40073) (CoroutineDebugger) Change minimum supported kotlinx.coroutines version to 1.3.8*
- [`KT-40172`](https://youtrack.jetbrains.com/issue/KT-40172) Restored frame variables isn't shown for suspended coroutines
- [`KT-40635`](https://youtrack.jetbrains.com/issue/KT-40635) Coroutines Debugger: make IDE plugin accept coroutines 1.3.8-rc* versions as well

### IDE. Gradle Integration

- [`KT-38744`](https://youtrack.jetbrains.com/issue/KT-38744) No dependency between Android `test` and commonTest source sets with kotlin.mpp.enableGranularSourceSetsMetadata=true
- [`KT-39037`](https://youtrack.jetbrains.com/issue/KT-39037) 'None of the consumable configurations have attributes' in MPP IDE import with transitive project dependency on self

### IDE. Gradle. Script

- [`KT-31137`](https://youtrack.jetbrains.com/issue/KT-31137) IntelliJ would get very slow when editing gradle buildSrc(using the kotlin dsl)
- [`KT-36078`](https://youtrack.jetbrains.com/issue/KT-36078) Gradle Kotlin script context is not reloaded when gradle/wrapper/gradle-wrapper.properties file is changed
- [`KT-39317`](https://youtrack.jetbrains.com/issue/KT-39317) ISE “Calling invokeAndWait from read-action leads to possible deadlock.” on importing simple Gradle-based project in nightly IJ

### IDE. Inspections and Intentions

- [`KT-28662`](https://youtrack.jetbrains.com/issue/KT-28662) Inspection to flag usage of the wrong Transient annotation on Kotlin Serializable class
- [`KT-34209`](https://youtrack.jetbrains.com/issue/KT-34209) Switch default behaviour in 1.4 for insertion (to build script) via quick fix of the compiler option enabling inline classes
- [`KT-36131`](https://youtrack.jetbrains.com/issue/KT-36131) Suggest to add a missing module dependency on an unresolved reference in Kotlin code
- [`KT-37462`](https://youtrack.jetbrains.com/issue/KT-37462) Add "Add dependency to module" quickfix in multimodule Maven project
- [`KT-39869`](https://youtrack.jetbrains.com/issue/KT-39869) Add whole project migration usages of kotlin.browser.* & kotlin.dom.* to kotlinx.browser.* & kotlinx.dom.* respectively

### IDE. Wizards

- [`KT-40004`](https://youtrack.jetbrains.com/issue/KT-40004) New Project wizard 1.4+: no `https://dl.bintray.com/kotlin/kotlinx` repository is added for kotlinx-html
- [`KT-40037`](https://youtrack.jetbrains.com/issue/KT-40037) New Project wizard: update Ktor version
- [`KT-40092`](https://youtrack.jetbrains.com/issue/KT-40092) Wizard: the templates panel on mac OS is too wide
- [`KT-40232`](https://youtrack.jetbrains.com/issue/KT-40232) New Wizard: Android Sdk path doesn't have backslash escaping on Windows
- [`KT-40371`](https://youtrack.jetbrains.com/issue/KT-40371) New Project Wizard: Frontend Application / Library results in broken run configuration
- [`KT-40377`](https://youtrack.jetbrains.com/issue/KT-40377) New Project Wizard: Frontend Application defines NPM dependencies that are unnecessary with Kotlin 1.4-RC+
- [`KT-40378`](https://youtrack.jetbrains.com/issue/KT-40378) New Project Wizard: Frontend Application, Disabling JavaScript test framework has no effect
- [`KT-40407`](https://youtrack.jetbrains.com/issue/KT-40407) Wizard: do not add stdlib by default for Gradle projects in wizard

### JS. Tools

- [`KT-39984`](https://youtrack.jetbrains.com/issue/KT-39984) Update dukat version in toolchain near to release of 1.4-RC

### JavaScript

- [`KT-32186`](https://youtrack.jetbrains.com/issue/KT-32186) Make sure K/JS Reflection API documentation is correct and fix it.
- [`KT-37563`](https://youtrack.jetbrains.com/issue/KT-37563) K/JS: stacktrace is not captured for exceptions without primary constructor inherited from Exception/Error
- [`KT-37752`](https://youtrack.jetbrains.com/issue/KT-37752) Generated typescript incorrect for constructors of derived classes
- [`KT-37883`](https://youtrack.jetbrains.com/issue/KT-37883) KJS: Generated TypeScript uses 'declare' rather than 'export'
- [`KT-38771`](https://youtrack.jetbrains.com/issue/KT-38771) JS: support non-reified type parameters in typeOf
- [`KT-39873`](https://youtrack.jetbrains.com/issue/KT-39873) Update Kotlin JavaScript wrappers due to NON_EXPORTABLE_TYPE diagnostic introduction
- [`KT-40126`](https://youtrack.jetbrains.com/issue/KT-40126) [JS / IR] NPE while compiling interfaces with invoke which is passed as a delegate
- [`KT-40216`](https://youtrack.jetbrains.com/issue/KT-40216) KJS / IR:  AssertionError caused by an anonymous object in the dependency project

### Libraries

- [`KT-33069`](https://youtrack.jetbrains.com/issue/KT-33069) StringBuilder common functions
- [`KT-35972`](https://youtrack.jetbrains.com/issue/KT-35972) Add contract to builder functions
- [`KT-37101`](https://youtrack.jetbrains.com/issue/KT-37101) Mark following api with DeprecatedSinceKotlin("1.4")
- [`KT-38360`](https://youtrack.jetbrains.com/issue/KT-38360) Make sure that JB libraries correctly define their npm deps and republish them (after KT-30619)
- [`KT-38817`](https://youtrack.jetbrains.com/issue/KT-38817) 'capitalize' should convert digraphs to title case
- [`KT-40168`](https://youtrack.jetbrains.com/issue/KT-40168) Remove StringBuilder.capacity from common and JS parts

### Middle-end. IR

- [`KT-40520`](https://youtrack.jetbrains.com/issue/KT-40520) Assert during fake-override generation

### Tools. Commonizer

- [`KT-40199`](https://youtrack.jetbrains.com/issue/KT-40199) Commonizer loses nullability of abbreviated types

### Tools. Compiler Plugins

- [`KT-40036`](https://youtrack.jetbrains.com/issue/KT-40036) Add diagnostic that shows is serialization plugin compatible with serialization-runtime

### Tools. Gradle

- [`KT-39755`](https://youtrack.jetbrains.com/issue/KT-39755) [KJS / Gradle / Legacy mode] Directory with whitespace is not processed
- [`KT-39809`](https://youtrack.jetbrains.com/issue/KT-39809) Kotlin Gradle plugin: ServiceConfigurationError: org.jetbrains.kotlin.gradle.plugin.KotlinGradleSubplugin: Provider org.jetbrains.kotlin.gradle.internal.AndroidSubplugin not a subtype
- [`KT-39977`](https://youtrack.jetbrains.com/issue/KT-39977) Collect statistics of used -Xjvm-default options
- [`KT-40300`](https://youtrack.jetbrains.com/issue/KT-40300) Fail the build if in MPP plugin no targets configured

### Tools. Gradle. JS

- [`KT-38170`](https://youtrack.jetbrains.com/issue/KT-38170) Investigate how to improve migration experience from pre 1.4.0 DSL to the new one
- [`KT-39654`](https://youtrack.jetbrains.com/issue/KT-39654) Default CSS settings in webpack has priority over user's settings
- [`KT-39842`](https://youtrack.jetbrains.com/issue/KT-39842) Kotlin/JS Gradle DSL: peerNpm dependency fails
- [`KT-40048`](https://youtrack.jetbrains.com/issue/KT-40048) [Gradle, JS] Deprecate kotlin-frontend plugin
- [`KT-40067`](https://youtrack.jetbrains.com/issue/KT-40067) [Gradle, JS] Public package.json for mixed JS/TS project
- [`KT-40210`](https://youtrack.jetbrains.com/issue/KT-40210) Fail the build when Kotlin/JS target is not (properly) configured
- [`KT-40320`](https://youtrack.jetbrains.com/issue/KT-40320) Gradle JS: make migration to the new Gradle DSL smoother

### Tools. Gradle. Multiplatform

- [`KT-32239`](https://youtrack.jetbrains.com/issue/KT-32239) Custom configurations inside Kotlin JVM Gradle projects can't properly resolve multiplatform dependencies
- [`KT-39897`](https://youtrack.jetbrains.com/issue/KT-39897) [Commonizer] Fast-pass for library fragments absent for some targets

### Tools. J2K

- [`KT-39739`](https://youtrack.jetbrains.com/issue/KT-39739) J2K: Access is allowed from event dispatch thread with IW lock only

### Tools. kapt

- [`KT-34604`](https://youtrack.jetbrains.com/issue/KT-34604) KAPT: Flaky NPE through `org.jetbrains.kotlin.kapt3.base.ProcessorLoader.doLoadProcessors`
- [`KT-36302`](https://youtrack.jetbrains.com/issue/KT-36302) TypeTreeVisitor.visitMemberSelect IllegalStateException: node.sym must not be null on JDK 11
- [`KT-39876`](https://youtrack.jetbrains.com/issue/KT-39876) KAPT: Serialization of classpath structure is incorrect if there are dependencies between types in jar/dir


## 1.4-M3

### Compiler

#### New Features

- [`KT-23575`](https://youtrack.jetbrains.com/issue/KT-23575) Deprecate with replacement and SinceKotlin 
- [`KT-38652`](https://youtrack.jetbrains.com/issue/KT-38652) Do not generate optional annotations to class files on JVM
- [`KT-38777`](https://youtrack.jetbrains.com/issue/KT-38777) Hide Throwable.addSuppressed member and prefer extension instead

#### Performance Improvements

- [`KT-38489`](https://youtrack.jetbrains.com/issue/KT-38489) Compilation of kotlin html DSL increasingly slow
- [`KT-28650`](https://youtrack.jetbrains.com/issue/KT-28650) Type inference for argument type is very slow if several interfaces with a type parameter is used as an upper bound of a type parameter

#### Fixes

- [`KT-15971`](https://youtrack.jetbrains.com/issue/KT-15971) Incorrect bytecode generated when inheriting default arguments not from the first supertype
- [`KT-25290`](https://youtrack.jetbrains.com/issue/KT-25290) NI: "AssertionError: If original type is SAM type, then candidate should have same type constructor" on out projection of Java class
- [`KT-28672`](https://youtrack.jetbrains.com/issue/KT-28672) Contracts on calls with implicit receivers
- [`KT-30279`](https://youtrack.jetbrains.com/issue/KT-30279) Support non-reified type parameters in typeOf
- [`KT-31908`](https://youtrack.jetbrains.com/issue/KT-31908) NI: CCE on passing lambda to function which accepts vararg SAM interface
- [`KT-32156`](https://youtrack.jetbrains.com/issue/KT-32156) New inference issue with generics
- [`KT-32229`](https://youtrack.jetbrains.com/issue/KT-32229) New inference algorithm not taking into account the upper bound class
- [`KT-33455`](https://youtrack.jetbrains.com/issue/KT-33455) Override equals/hashCode in functional interface wrappers
- [`KT-34902`](https://youtrack.jetbrains.com/issue/KT-34902) AnalyzerException: Argument 1: expected I, but found R for unsigned types in generic data class
- [`KT-35075`](https://youtrack.jetbrains.com/issue/KT-35075) AssertionError: "No resolved call for ..." with conditional function references
- [`KT-35468`](https://youtrack.jetbrains.com/issue/KT-35468) Overcome ambiguity between typealias kotlin.Throws and the aliased type kotlin.jvm.Throws
- [`KT-35494`](https://youtrack.jetbrains.com/issue/KT-35494) NI: Multiple duplicate error diagnostics (in IDE popup) with NULL_FOR_NONNULL_TYPE
- [`KT-35681`](https://youtrack.jetbrains.com/issue/KT-35681) Wrong common supertype between raw and integer literal type leads to unsound code
- [`KT-35937`](https://youtrack.jetbrains.com/issue/KT-35937) Error "Declaration has several compatible actuals" on incremental build
- [`KT-36013`](https://youtrack.jetbrains.com/issue/KT-36013) Functional interface conversion not happens on a value of functional type with smart cast to a relevant functional type
- [`KT-36045`](https://youtrack.jetbrains.com/issue/KT-36045) Do not depend on the order of lambda arguments to coerce result to `Unit`
- [`KT-36448`](https://youtrack.jetbrains.com/issue/KT-36448) NI: fix tests after enabling NI in the compiler
- [`KT-36706`](https://youtrack.jetbrains.com/issue/KT-36706) Prohibit functional interface constructor references
- [`KT-36969`](https://youtrack.jetbrains.com/issue/KT-36969) Generate @NotNull on instance parameters of Interface$DefaultImpls methods
- [`KT-37058`](https://youtrack.jetbrains.com/issue/KT-37058) Incorrect overload resolution ambiguity on callable reference in a conditional expression with new inference
- [`KT-37120`](https://youtrack.jetbrains.com/issue/KT-37120) [FIR] False UNRESOLVED_REFERENCE for public and protected member functions and properties which are declared in object inner class
- [`KT-37149`](https://youtrack.jetbrains.com/issue/KT-37149) Conversion when generic specified by type argument of SAM type
- [`KT-37249`](https://youtrack.jetbrains.com/issue/KT-37249) false TYPE_MISMATCH when When-expression branches have try-catch blocks
- [`KT-37341`](https://youtrack.jetbrains.com/issue/KT-37341) NI: Type mismatch with combination of lambda and function reference
- [`KT-37436`](https://youtrack.jetbrains.com/issue/KT-37436) AME: "Receiver class does not define or inherit an implementation of the resolved method" in runtime on usage of non-abstract method of fun interface
- [`KT-37510`](https://youtrack.jetbrains.com/issue/KT-37510) NI infers `java.lang.Void` from the expression in a lazy property delegate and throws ClassCastException at runtime
- [`KT-37541`](https://youtrack.jetbrains.com/issue/KT-37541) SAM conversion with fun interface without a function fails on compiling and IDE analysis in SamAdapterFunctionsScope.getSamConstructor()
- [`KT-37574`](https://youtrack.jetbrains.com/issue/KT-37574) NI: Type mismatch with Kotlin object extending functional type passed as @FunctionalInterface to Java
- [`KT-37630`](https://youtrack.jetbrains.com/issue/KT-37630) NI: ILT suitability in a call is broken if there are CST calculation and calling function's type parameters
- [`KT-37665`](https://youtrack.jetbrains.com/issue/KT-37665) NI: applicability error due to implicitly inferred Nothing for returning T with expected type
- [`KT-37712`](https://youtrack.jetbrains.com/issue/KT-37712) No extension receiver in functional interface created with lambda
- [`KT-37715`](https://youtrack.jetbrains.com/issue/KT-37715) NI: VerifyError: Bad type on operand stack with varargs generic value when type is inferred
- [`KT-37721`](https://youtrack.jetbrains.com/issue/KT-37721) NI: Function reference with vararg parameter treated as array and missing default parameter is rejected
- [`KT-37887`](https://youtrack.jetbrains.com/issue/KT-37887) NI: Smart casting for Map doesn't work if the variable is already  "smart casted"
- [`KT-37914`](https://youtrack.jetbrains.com/issue/KT-37914) NI: broken inference for a casting to subtype function within the common constraint system with this subtype
- [`KT-37952`](https://youtrack.jetbrains.com/issue/KT-37952) NI: improve lambdas completion through separation the lambdas analysis into several steps
- [`KT-38069`](https://youtrack.jetbrains.com/issue/KT-38069) Callable reference adaptation should have dependency on API version 1.4
- [`KT-38143`](https://youtrack.jetbrains.com/issue/KT-38143) New type inference fails when calling extension function defined on generic type with type arguments nested too deep
- [`KT-38156`](https://youtrack.jetbrains.com/issue/KT-38156) FIR Metadata generation
- [`KT-38197`](https://youtrack.jetbrains.com/issue/KT-38197) java.lang.OutOfMemoryError: Java heap space: failed reallocation of scalar replaced objects
- [`KT-38259`](https://youtrack.jetbrains.com/issue/KT-38259) NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER for provideDelegate
- [`KT-38337`](https://youtrack.jetbrains.com/issue/KT-38337) Map delegation fails for inline classes
- [`KT-38401`](https://youtrack.jetbrains.com/issue/KT-38401) FIR: protected effective visibility is handled unprecisely
- [`KT-38416`](https://youtrack.jetbrains.com/issue/KT-38416) FIR: infinite loop in BB coroutine test 'overrideDefaultArgument.kt'
- [`KT-38432`](https://youtrack.jetbrains.com/issue/KT-38432) FIR: incorrect effective visibility in anonymous object
- [`KT-38434`](https://youtrack.jetbrains.com/issue/KT-38434) Implement resolution of suspend-conversion on FE only, but give error if suspend conversion is called
- [`KT-38437`](https://youtrack.jetbrains.com/issue/KT-38437) [FIR] String(CharArray) is resolved to java.lang.String constructor instead of kotlin.text.String pseudo-constructor
- [`KT-38439`](https://youtrack.jetbrains.com/issue/KT-38439) NI: anonymous functions without receiver is allowed if there is an expected type with receiver
- [`KT-38473`](https://youtrack.jetbrains.com/issue/KT-38473) FIR: ConeIntegerLiteralType in signature
- [`KT-38537`](https://youtrack.jetbrains.com/issue/KT-38537) IllegalArgumentException: "marginPrefix must be non-blank string" with raw strings and space as margin prefix in trimMargin() call
- [`KT-38604`](https://youtrack.jetbrains.com/issue/KT-38604) Implicit suspend conversion on call arguments doesn't work on vararg elements
- [`KT-38680`](https://youtrack.jetbrains.com/issue/KT-38680) NSME when calling generic interface method with default parameters overriden with inline class type argument
- [`KT-38681`](https://youtrack.jetbrains.com/issue/KT-38681) Wrong bytecode generated when calling generic interface method with default parameters overriden with primitive type argument
- [`KT-38691`](https://youtrack.jetbrains.com/issue/KT-38691) NI: overload resolution ambiguity if take `R` and `() -> R`, and pass literal lambda, which returns `R`
- [`KT-38799`](https://youtrack.jetbrains.com/issue/KT-38799) False positive USELESS_CAST for lambda parameter
- [`KT-38802`](https://youtrack.jetbrains.com/issue/KT-38802) Generated code crashes by ClassCastException when delegating with inline class
- [`KT-38853`](https://youtrack.jetbrains.com/issue/KT-38853) Backend Internal error: Error type encountered: Unresolved type for nested class used in an annotation argument on an interface method
- [`KT-38890`](https://youtrack.jetbrains.com/issue/KT-38890) NI: false negative Type mismatch for values with fun keyword
- [`KT-39010`](https://youtrack.jetbrains.com/issue/KT-39010) NI: Regression with false-positive smartcast on var of generic type
- [`KT-39013`](https://youtrack.jetbrains.com/issue/KT-39013) 202, ASM 8: "AnalyzerException: Execution can fall off the end of the code"
- [`KT-39260`](https://youtrack.jetbrains.com/issue/KT-39260) "AssertionError: Unsigned type expected: Int" in range
- [`KT-39305`](https://youtrack.jetbrains.com/issue/KT-39305) NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER: unable to infer deeply nested type bound when class implements generic interface
- [`KT-39408`](https://youtrack.jetbrains.com/issue/KT-39408) Using unsigned arrays as generics fails in 1.4-M2 with class cast exception
- [`KT-39533`](https://youtrack.jetbrains.com/issue/KT-39533) NI: Wrong overload resolution for methods with SAM converted function reference arguments
- [`KT-39535`](https://youtrack.jetbrains.com/issue/KT-39535) NI: Inference fails for the parameters of SAM converted lambdas with type parameters
- [`KT-39603`](https://youtrack.jetbrains.com/issue/KT-39603) Require explicit override in JVM default compatibility mode on implicit generic specialization of inherited methods in classes
- [`KT-39671`](https://youtrack.jetbrains.com/issue/KT-39671) Couldn't inline method call 'expectBody'
- [`KT-39816`](https://youtrack.jetbrains.com/issue/KT-39816) NI:ClassCastException and no IDE error with provideDelegate when DELEGATE_SPECIAL_FUNCTION_MISSING in OI
- [`KT-32779`](https://youtrack.jetbrains.com/issue/KT-32779) `Rewrite at slice` in array access resolution in coroutine inference
- [`KT-39387`](https://youtrack.jetbrains.com/issue/KT-39387) Can't build Kotlin project due to overload resolution ambiguity on flatMap calls
- [`KT-39229`](https://youtrack.jetbrains.com/issue/KT-39229) NI: resolution to wrong candidate (SAM-type against similar functional type)

### Docs & Examples

- [`KT-36245`](https://youtrack.jetbrains.com/issue/KT-36245) Document that @kotlin.native.ThreadLocal annotation doesn't work anywhere except in Kotlin/Native
- [`KT-37943`](https://youtrack.jetbrains.com/issue/KT-37943) Conflicting overloads in the factory functions sample code in Coding Conventions Page

### IDE

#### New Features

- [`KT-10974`](https://youtrack.jetbrains.com/issue/KT-10974) Add Code Style: Import Layout Configuration Table
- [`KT-39065`](https://youtrack.jetbrains.com/issue/KT-39065) "Join lines" should remove trailing comma on call site

#### Fixes

- [`KT-9065`](https://youtrack.jetbrains.com/issue/KT-9065) Wrong result when move statement through if block with call with lambda
- [`KT-14757`](https://youtrack.jetbrains.com/issue/KT-14757) Move statement up breaks code in function parameter list
- [`KT-14946`](https://youtrack.jetbrains.com/issue/KT-14946) Move statement up/down (with Ctrl+Shift+Up/Down) messes with empty lines
- [`KT-15143`](https://youtrack.jetbrains.com/issue/KT-15143) Kotlin: Colors&Fonts -> "Enum entry" should use Language Default -> Classes - Static field
- [`KT-17887`](https://youtrack.jetbrains.com/issue/KT-17887) Moving statement (Ctrl/Cmd+Shift+Down) messes with use block
- [`KT-34187`](https://youtrack.jetbrains.com/issue/KT-34187) UAST cannot get type of array access
- [`KT-34524`](https://youtrack.jetbrains.com/issue/KT-34524) "PSI and index do not match" and IDE freeze with library import from `square/workflow`
- [`KT-35574`](https://youtrack.jetbrains.com/issue/KT-35574) UAST: UBreakExpression in when expression should be UYieldExpression
- [`KT-36801`](https://youtrack.jetbrains.com/issue/KT-36801) IDE: Unsupported language version value is represented with "latest stable" in GUI
- [`KT-37378`](https://youtrack.jetbrains.com/issue/KT-37378) Remove IDE option "Enable new type inference algorithm..." in 1.4
- [`KT-38003`](https://youtrack.jetbrains.com/issue/KT-38003) "Analyze Data Flow from Here" should work on parameter of abstract method
- [`KT-38173`](https://youtrack.jetbrains.com/issue/KT-38173) Reified types do no have extends information
- [`KT-38217`](https://youtrack.jetbrains.com/issue/KT-38217) Make Kotlin plugin settings searchable
- [`KT-38247`](https://youtrack.jetbrains.com/issue/KT-38247) "IncorrectOperationException: Incorrect expression" through UltraLightUtils.kt: inlined string is not escaped before parsing
- [`KT-38293`](https://youtrack.jetbrains.com/issue/KT-38293) Throwable: "'codestyle.name.kotlin' is not found in java.util.PropertyResourceBundle" at KotlinLanguageCodeStyleSettingsProvider.getConfigurableDisplayName()
- [`KT-38407`](https://youtrack.jetbrains.com/issue/KT-38407) Drop components from plugin.xml
- [`KT-38443`](https://youtrack.jetbrains.com/issue/KT-38443) No error on change in property initializer
- [`KT-38521`](https://youtrack.jetbrains.com/issue/KT-38521) ISE: Loop in parent structure when converting a DOT_QUALIFIED_EXPRESSION with parent ANNOTATED_EXPRESSION
- [`KT-38571`](https://youtrack.jetbrains.com/issue/KT-38571) Rework deprecated EPs
- [`KT-38632`](https://youtrack.jetbrains.com/issue/KT-38632) Change the code style to official in tests

### IDE. Code Style, Formatting

#### Fixes

- [`KT-24750`](https://youtrack.jetbrains.com/issue/KT-24750) Formatter: Minimum blank lines after class header does nothing
- [`KT-31169`](https://youtrack.jetbrains.com/issue/KT-31169) IDEA settings search fails to find "Tabs and Indents" tab in Kotlin code style settings
- [`KT-35359`](https://youtrack.jetbrains.com/issue/KT-35359) Incorrect indent for multiline expression in string template
- [`KT-37420`](https://youtrack.jetbrains.com/issue/KT-37420) Add setting to disable inserting empty line between declaration and declaration with comment
- [`KT-37891`](https://youtrack.jetbrains.com/issue/KT-37891) Formatter inserts empty lines between annotated properties
- [`KT-38036`](https://youtrack.jetbrains.com/issue/KT-38036) Use trailing comma setting does not apply to code example in Settings dialog
- [`KT-38568`](https://youtrack.jetbrains.com/issue/KT-38568) False positive: weak warning "Missing line break" on -> in when expression
- [`KT-39024`](https://youtrack.jetbrains.com/issue/KT-39024) Add option for blank lines before declaration with comment or annotation on separate line
- [`KT-39079`](https://youtrack.jetbrains.com/issue/KT-39079) Trailing comma: add base support for call site
- [`KT-39123`](https://youtrack.jetbrains.com/issue/KT-39123) Option `Align 'when' branches in columns` does nothing
- [`KT-39180`](https://youtrack.jetbrains.com/issue/KT-39180) Move trailing comma settings in Other tab

### IDE. Completion

- [`KT-18538`](https://youtrack.jetbrains.com/issue/KT-18538) Completion of static members of grand-super java class inserts unnecessary qualifier
- [`KT-38445`](https://youtrack.jetbrains.com/issue/KT-38445) Fully qualified class name is used instead after insertion of `delay` method

### IDE. Debugger

#### Fixes

- [`KT-14057`](https://youtrack.jetbrains.com/issue/KT-14057) Debugger couldn't step into Reader.read
- [`KT-14828`](https://youtrack.jetbrains.com/issue/KT-14828) Bad step into/over behavior for functions with default parameters
- [`KT-36403`](https://youtrack.jetbrains.com/issue/KT-36403) Method breakpoints don't work for libraries
- [`KT-36404`](https://youtrack.jetbrains.com/issue/KT-36404) Evaluate: "AssertionError: Argument expression is not saved for a SAM constructor"
- [`KT-37486`](https://youtrack.jetbrains.com/issue/KT-37486) Kotlin plugin keeps reference to stream debugger support classes after stream debugger plugin is disabled
- [`KT-38484`](https://youtrack.jetbrains.com/issue/KT-38484) Coroutines Debugger: IAE “Requested element count -1 is less than zero.” is thrown by calling dumpCoroutines
- [`KT-38606`](https://youtrack.jetbrains.com/issue/KT-38606) Coroutine Debugger: OCE from org.jetbrains.kotlin.idea.debugger.coroutine.proxy.mirror.BaseMirror.isCompatible
- [`KT-39143`](https://youtrack.jetbrains.com/issue/KT-39143) NPE on setCurrentStackFrame to Kotlin inner compiled class content
- [`KT-39412`](https://youtrack.jetbrains.com/issue/KT-39412) Failed to find Premain-Class manifest attribute when debugging main method with ktor
- [`KT-39634`](https://youtrack.jetbrains.com/issue/KT-39634) (CoroutineDebugger) Agent doesn't start if using kotlinx-coroutines-core only dependency
- [`KT-39648`](https://youtrack.jetbrains.com/issue/KT-39648) Coroutines debugger doesn't see stacktraces in case of the project has kotlinx-coroutines-debug dependency

### IDE. Gradle Integration

#### Performance Improvements

- [`KT-39059`](https://youtrack.jetbrains.com/issue/KT-39059) Poor performance of `modifyDependenciesOnMppModules`

#### Fixes

- [`KT-35921`](https://youtrack.jetbrains.com/issue/KT-35921) Gradle Import fails with "Unsupported major.minor version 52.0" on pure Java project in case "Gradle JDK" is lower 1.8 and Kotlin plugin is enabled
- [`KT-36673`](https://youtrack.jetbrains.com/issue/KT-36673) Gradle Project importing: move ModelBuilders and ModelProviders to kotlin-gradle-tooling jar
- [`KT-36792`](https://youtrack.jetbrains.com/issue/KT-36792) IDEA 2020.1: Some module->module dependencies in HMPP project are missed after import from Gradle
- [`KT-37125`](https://youtrack.jetbrains.com/issue/KT-37125) Imported modules structure for MPP project is displayed messy in UI in IDEA 2020.1
- [`KT-37428`](https://youtrack.jetbrains.com/issue/KT-37428) NPE at KotlinFacetSettings.setLanguageLevel() on the first project import
- [`KT-38706`](https://youtrack.jetbrains.com/issue/KT-38706) IDE Gradle import creates 4 JavaScript modules for MPP source sets with BOTH compiler type
- [`KT-38767`](https://youtrack.jetbrains.com/issue/KT-38767) Published hierarchical multiplatform library symbols are unresolved in IDE (master)
- [`KT-38842`](https://youtrack.jetbrains.com/issue/KT-38842) False positive [INVISIBLE_MEMBER] for `internal` declaration of commonMain called from commonTest
- [`KT-39213`](https://youtrack.jetbrains.com/issue/KT-39213) IDE: references from MPP project to JavaScript library are unresolved, when project and library are compiled with "both" mode
- [`KT-39657`](https://youtrack.jetbrains.com/issue/KT-39657) Language settings for intermediate source-sets are lost during import

### IDE. Gradle. Script

#### New Features

- [`KT-34481`](https://youtrack.jetbrains.com/issue/KT-34481) `*.gradle.kts`: use Intellij IDEA Gradle project sync mechanics for updating script configuration

#### Performance Improvements

- [`KT-34138`](https://youtrack.jetbrains.com/issue/KT-34138) Deadlock in `ScriptTemplatesFromDependenciesProvider`
- [`KT-38875`](https://youtrack.jetbrains.com/issue/KT-38875) Deadlock in ScriptClassRootsUpdater.checkInvalidSdks

#### Fixes

- [`KT-34265`](https://youtrack.jetbrains.com/issue/KT-34265) Bogus "build configuration failed, run 'gradle tasks' for more information" message and other issues related to "script dependencies"
- [`KT-34444`](https://youtrack.jetbrains.com/issue/KT-34444) *.gradle.kts: special storage of all scripts configuration on one file
- [`KT-35153`](https://youtrack.jetbrains.com/issue/KT-35153) build.gradle.kts: scripts in removed subproject remain imported, but shouldn't
- [`KT-35573`](https://youtrack.jetbrains.com/issue/KT-35573) Request for gradle build script configuration only after explicit click on notification
- [`KT-36675`](https://youtrack.jetbrains.com/issue/KT-36675) move .gradle.kts ModelBuilders and ModelProviders to kotlin-gradle-tooling jar
- [`KT-37178`](https://youtrack.jetbrains.com/issue/KT-37178) build.gradle.kts: Rework the notification for scripts out of project
- [`KT-37631`](https://youtrack.jetbrains.com/issue/KT-37631) Unnecessary loading dependencies after opening build.gradle.kts after project import with Gradle 6
- [`KT-37863`](https://youtrack.jetbrains.com/issue/KT-37863) Scanning dependencies for script definitions takes too long or indefinitely during Gradle import
- [`KT-38296`](https://youtrack.jetbrains.com/issue/KT-38296) MISSING_DEPENDENCY_SUPERCLASS in the build.gradle.kts editor while Gradle runs Ok
- [`KT-38541`](https://youtrack.jetbrains.com/issue/KT-38541) "Invalid file" exception in ScriptChangeListener.getAnalyzableKtFileForScript()
- [`KT-39104`](https://youtrack.jetbrains.com/issue/KT-39104) “Gradle Kotlin DSL script configuration is missing” after importing project in IJ201, Gradle 6.3
- [`KT-39469`](https://youtrack.jetbrains.com/issue/KT-39469) Gradle version is not updated in script dependencies if the version of gradle was changed in gradle-wrapper.properties
- [`KT-39771`](https://youtrack.jetbrains.com/issue/KT-39771) Freeze 30s from org.jetbrains.kotlin.scripting.resolve.ApiChangeDependencyResolverWrapper.resolve on loading script configuration with Gradle 5.6.4

### IDE. Inspections and Intentions

#### New Features

- [`KT-14884`](https://youtrack.jetbrains.com/issue/KT-14884) Intention to add missing "class" keyword for enum and annotation top-level declarations
- [`KT-17209`](https://youtrack.jetbrains.com/issue/KT-17209) Provide intention to fix platform declaration clash (CONFLICTING_JVM_DECLARATIONS)
- [`KT-24522`](https://youtrack.jetbrains.com/issue/KT-24522) Suggest to move typealias outside the class
- [`KT-30263`](https://youtrack.jetbrains.com/issue/KT-30263) Detect redundant conversions of unsigned types
- [`KT-35893`](https://youtrack.jetbrains.com/issue/KT-35893) Support Inspection for unnecessary asSequence() call
- [`KT-38559`](https://youtrack.jetbrains.com/issue/KT-38559) "Change JVM name" (@JvmName) quickfix: improve name suggester for generic functions
- [`KT-38597`](https://youtrack.jetbrains.com/issue/KT-38597) Expand Boolean intention
- [`KT-38982`](https://youtrack.jetbrains.com/issue/KT-38982) Add "Logger initialized with foreign class" inspection
- [`KT-39131`](https://youtrack.jetbrains.com/issue/KT-39131) TrailingCommaInspection: should suggest fixes for call-site without warnings

#### Fixes

- [`KT-5271`](https://youtrack.jetbrains.com/issue/KT-5271) Missing QuickFix for Multiple supertypes available
- [`KT-11865`](https://youtrack.jetbrains.com/issue/KT-11865) "Create secondary constructor" quick fix always inserts parameter-less call to `this()`
- [`KT-14021`](https://youtrack.jetbrains.com/issue/KT-14021) Quickfix to add parameter to function gives strange name to parameter
- [`KT-17121`](https://youtrack.jetbrains.com/issue/KT-17121) "Implement members" quick fix is not suggested
- [`KT-17368`](https://youtrack.jetbrains.com/issue/KT-17368) Don't highlight members annotated with @JsName as unused
- [`KT-20795`](https://youtrack.jetbrains.com/issue/KT-20795) "replace explicit parameter with it" creates invalid code in case of overload ambiguities
- [`KT-22014`](https://youtrack.jetbrains.com/issue/KT-22014) Intention "convert lambda to reference" should be available for implicit 'this'
- [`KT-22015`](https://youtrack.jetbrains.com/issue/KT-22015) Intention "Convert lambda to reference" should be available in spite of the lambda in or out of parentheses
- [`KT-22142`](https://youtrack.jetbrains.com/issue/KT-22142) Intentions: "Convert to primary constructor" changes semantics for property with custom setter
- [`KT-22878`](https://youtrack.jetbrains.com/issue/KT-22878) Empty argument list at the call site of custom function named "suspend" shouldn't be reported as unnecessary
- [`KT-24281`](https://youtrack.jetbrains.com/issue/KT-24281) Importing of invoke() from the same file is reported as unused even if it isn't
- [`KT-25050`](https://youtrack.jetbrains.com/issue/KT-25050) False-positive inspection "Call replaceable with binary operator" for 'equals'
- [`KT-26361`](https://youtrack.jetbrains.com/issue/KT-26361) @Deprecated "ReplaceWith" quickfix inserts 'this' incorrectly when using function imports
- [`KT-27651`](https://youtrack.jetbrains.com/issue/KT-27651) 'Condition is always true' inspection should not be triggered when the condition has references to a named constant
- [`KT-29934`](https://youtrack.jetbrains.com/issue/KT-29934) False negative `Change type` quickfix on primary constructor override val parameter when it has wrong type
- [`KT-31682`](https://youtrack.jetbrains.com/issue/KT-31682) 'Convert lambda to reference' intention inside class with function which return object produces uncompilable code
- [`KT-31760`](https://youtrack.jetbrains.com/issue/KT-31760) Implement Abstract Function/Property intentions position generated member improperly
- [`KT-32511`](https://youtrack.jetbrains.com/issue/KT-32511) Create class quick fix is not suggested in super type list in case of missing primary constructor
- [`KT-32565`](https://youtrack.jetbrains.com/issue/KT-32565) False positive "Variable is the same as 'credentials' and should be inlined" with object declared and returned from lambda
- [`KT-32801`](https://youtrack.jetbrains.com/issue/KT-32801) False positive "Call on collection type may be reduced" with mapNotNull, generic lambda block and new inference
- [`KT-33951`](https://youtrack.jetbrains.com/issue/KT-33951) ReplaceWith quickfix with unqualified object member call doesn't substitute argument for parameter
- [`KT-34378`](https://youtrack.jetbrains.com/issue/KT-34378) "Convert lambda to reference" refactoring does not work for suspend functions
- [`KT-34677`](https://youtrack.jetbrains.com/issue/KT-34677) False positive "Collection count can be converted to size" with `Iterable`
- [`KT-34696`](https://youtrack.jetbrains.com/issue/KT-34696) Wrong 'Redundant qualifier name' for 'MyEnum.values' usage
- [`KT-34713`](https://youtrack.jetbrains.com/issue/KT-34713) "Condition is always 'false'": quickfix "Delete expression" doesn't remove `else` keyword (may break control flow)
- [`KT-35015`](https://youtrack.jetbrains.com/issue/KT-35015) ReplaceWith doesn't substitute parameters with argument expressions
- [`KT-35329`](https://youtrack.jetbrains.com/issue/KT-35329) Replace 'when' with 'if' intention: do not suggest if 'when' is used as expression and it has no 'else' branch
- [`KT-36194`](https://youtrack.jetbrains.com/issue/KT-36194) "Add braces to 'for' statement" inserts extra line break and moves the following single-line comment
- [`KT-36406`](https://youtrack.jetbrains.com/issue/KT-36406) "To ordinary string literal" intention adds unnecessary escapes to characters in template expression
- [`KT-36461`](https://youtrack.jetbrains.com/issue/KT-36461) "Create enum constant" quick fix adds after semicolon, if the last entry has a comma
- [`KT-36462`](https://youtrack.jetbrains.com/issue/KT-36462) "Create enum constant" quick fix doesn't add trailing comma
- [`KT-36508`](https://youtrack.jetbrains.com/issue/KT-36508) False positive "Replace 'to' with infix form" when 'to' lambda generic type argument is specified explicitly
- [`KT-36930`](https://youtrack.jetbrains.com/issue/KT-36930) Intention "Specify type explicitly" adds NotNull annotation when calling java method with the annotation
- [`KT-37148`](https://youtrack.jetbrains.com/issue/KT-37148) "Remove redundant `.let` call doesn't remove extra calls
- [`KT-37156`](https://youtrack.jetbrains.com/issue/KT-37156) "Unused unary operator" inspection highlighting is hard to see
- [`KT-37173`](https://youtrack.jetbrains.com/issue/KT-37173) "Replace with string templates" intention for String.format produces uncompilable string template
- [`KT-37181`](https://youtrack.jetbrains.com/issue/KT-37181) Don't show "Remove redundant qualifier name" inspection on qualified Companion imported with star import
- [`KT-37214`](https://youtrack.jetbrains.com/issue/KT-37214) "Convert lambda to reference" with a labeled "this" receiver fails
- [`KT-37256`](https://youtrack.jetbrains.com/issue/KT-37256) False positive `PlatformExtensionReceiverOfInline` inspection if a platform type value is passed to a nullable receiver
- [`KT-37744`](https://youtrack.jetbrains.com/issue/KT-37744) "Convert lambda to reference" inspection quick fix create incompilable code when type is inferred from lambda parameter
- [`KT-37746`](https://youtrack.jetbrains.com/issue/KT-37746) "Redundant suspend modifier" should not be reported for functions with actual keyword
- [`KT-37842`](https://youtrack.jetbrains.com/issue/KT-37842) "Convert to anonymous function" creates broken code with suspend functions
- [`KT-37908`](https://youtrack.jetbrains.com/issue/KT-37908) "Convert to anonymous object" quickfix: false negative when interface has concrete functions
- [`KT-37967`](https://youtrack.jetbrains.com/issue/KT-37967) Replace 'invoke' with direct call intention adds unnecessary parenthesis
- [`KT-37977`](https://youtrack.jetbrains.com/issue/KT-37977) "Replace 'invoke' with direct call" intention: false positive when function is not operator
- [`KT-38062`](https://youtrack.jetbrains.com/issue/KT-38062) Reactor Quickfix throws `NotImplementedError` for Kotlin
- [`KT-38240`](https://youtrack.jetbrains.com/issue/KT-38240) False positive redundant semicolon with `as` cast and `not` unary operator on next line
- [`KT-38261`](https://youtrack.jetbrains.com/issue/KT-38261) Redundant 'let' call removal leaves ?. operator and makes code uncompilable
- [`KT-38310`](https://youtrack.jetbrains.com/issue/KT-38310) Remove explicit type annotation intention drops 'suspend'
- [`KT-38492`](https://youtrack.jetbrains.com/issue/KT-38492) False positive "Add import" intention for already imported class
- [`KT-38520`](https://youtrack.jetbrains.com/issue/KT-38520) SetterBackingFieldAssignmentInspection throws exception
- [`KT-38649`](https://youtrack.jetbrains.com/issue/KT-38649) False positive quickfix "Assignment should be lifted out of when" in presence of smartcasts
- [`KT-38677`](https://youtrack.jetbrains.com/issue/KT-38677) Invalid psi tree after `Lift assigment out of...`
- [`KT-38790`](https://youtrack.jetbrains.com/issue/KT-38790) "Convert sealed subclass to object" for data classes doesn't remove 'data' keyword
- [`KT-38829`](https://youtrack.jetbrains.com/issue/KT-38829) 'Remove redundant backticks' can be broken with @ in name
- [`KT-38831`](https://youtrack.jetbrains.com/issue/KT-38831) 'Replace with assignment' can be broken with fast code change
- [`KT-38832`](https://youtrack.jetbrains.com/issue/KT-38832) "Remove curly braces" intention may produce CCE
- [`KT-38948`](https://youtrack.jetbrains.com/issue/KT-38948) False positive quickfix "Make containing function suspend" for anonymous function
- [`KT-38961`](https://youtrack.jetbrains.com/issue/KT-38961) "Useless call on collection type" for filterNotNull on non-null array where list return type is expected
- [`KT-39069`](https://youtrack.jetbrains.com/issue/KT-39069) Improve TrailingCommaInspection
- [`KT-39151`](https://youtrack.jetbrains.com/issue/KT-39151) False positive inspection to replace Java forEach with Kotlin forEach when using ConcurrentHashMap

### IDE. JS

- [`KT-39275`](https://youtrack.jetbrains.com/issue/KT-39275) Kotlin JS Browser template for kotlin dsl doesn't include index.html

### IDE. KDoc

- [`KT-32163`](https://youtrack.jetbrains.com/issue/KT-32163) Open Quick Documentation when cursor inside function / constructor brackets

### IDE. Navigation

- [`KT-32245`](https://youtrack.jetbrains.com/issue/KT-32245) Method in Kotlin class is not listed among implementing methods
- [`KT-33510`](https://youtrack.jetbrains.com/issue/KT-33510) There is no gutter icon to navigate from `actual` to `expect` if `expect` and the corresponding `actual` declarations are in the same file
- [`KT-38260`](https://youtrack.jetbrains.com/issue/KT-38260) Navigation bar doesn't show directories of files with a single top level Kotlin class
- [`KT-38466`](https://youtrack.jetbrains.com/issue/KT-38466) Top level functions/properties aren't shown in navigation panel

### IDE. Project View

- [`KT-36444`](https://youtrack.jetbrains.com/issue/KT-36444) Structure view: add ability to sort by visibility
- [`KT-38276`](https://youtrack.jetbrains.com/issue/KT-38276) Structure view: support visibility filter for class properties

### IDE. REPL

- [`KT-38454`](https://youtrack.jetbrains.com/issue/KT-38454) Kotlin REPL in IntelliJ doesn't take module's JVM target setting into account

### IDE. Refactorings

- [`KT-12878`](https://youtrack.jetbrains.com/issue/KT-12878) "Change signature" forces line breaks after every parameter declaration
- [`KT-30128`](https://youtrack.jetbrains.com/issue/KT-30128) Change Signature should move lambda outside of parentheses if the arguments are reordered so that the lambda goes last
- [`KT-35338`](https://youtrack.jetbrains.com/issue/KT-35338) Move/rename refactorings mess up code formatting by wrapping lines
- [`KT-38449`](https://youtrack.jetbrains.com/issue/KT-38449) Extract variable refactoring is broken by NPE
- [`KT-38543`](https://youtrack.jetbrains.com/issue/KT-38543) Copy can't work to package with escaped package
- [`KT-38627`](https://youtrack.jetbrains.com/issue/KT-38627) Rename package refactorings mess up code formatting by wrapping lines

### IDE. Run Configurations

- [`KT-34516`](https://youtrack.jetbrains.com/issue/KT-34516) Don't suggest incompatible targets in a drop-down list for run test gutter icon in multiplatform projects
- [`KT-38102`](https://youtrack.jetbrains.com/issue/KT-38102) DeprecatedMethodException ConfigurationFactory.getId

### IDE. Scratch

- [`KT-38455`](https://youtrack.jetbrains.com/issue/KT-38455) Kotlin scratch files don't take module's JVM target setting into account

### IDE. Script

- [`KT-39791`](https://youtrack.jetbrains.com/issue/KT-39791) Kotlin plugin loads VFS in the output directories

### IDE. Structural Search

- [`KT-39721`](https://youtrack.jetbrains.com/issue/KT-39721) Optimize Kotlin SSR by using the index
- [`KT-39733`](https://youtrack.jetbrains.com/issue/KT-39733) Augmented assignment matching
- [`KT-39769`](https://youtrack.jetbrains.com/issue/KT-39769) "When expressions" predefined template doesn't match all when expressions

### IDE. Wizards

- [`KT-38673`](https://youtrack.jetbrains.com/issue/KT-38673) New Project Wizard: multiplatform templates are generated having unsupported Gradle version in a wrapper
- [`KT-38810`](https://youtrack.jetbrains.com/issue/KT-38810) Incorrect order of build phases in Xcode project from new wizard
- [`KT-38952`](https://youtrack.jetbrains.com/issue/KT-38952) Remove old new_project_wizards
- [`KT-39503`](https://youtrack.jetbrains.com/issue/KT-39503) New Project wizard 1.4+: release kotlinx.html version is added to dependencies with milestone IDE plugin
- [`KT-39700`](https://youtrack.jetbrains.com/issue/KT-39700) Wizard: group project templates on the first step by the project type
- [`KT-39770`](https://youtrack.jetbrains.com/issue/KT-39770) CSS Support in Kotlin wizards
- [`KT-39826`](https://youtrack.jetbrains.com/issue/KT-39826) Fix Android app in New Template Wizard
- [`KT-39843`](https://youtrack.jetbrains.com/issue/KT-39843) Change imports in JS/browser wizard

### JS. Tools

- [`KT-32273`](https://youtrack.jetbrains.com/issue/KT-32273) Kotlin/JS console error on hot reload
- [`KT-39498`](https://youtrack.jetbrains.com/issue/KT-39498) Update dukat version in toolchain near to release of 1.4-M3

### JavaScript

- [`KT-29916`](https://youtrack.jetbrains.com/issue/KT-29916) Implement `typeOf` on JS
- [`KT-35857`](https://youtrack.jetbrains.com/issue/KT-35857) Kotlin/JS CLI bundled to IDEA plugin can't compile using IR back-end out of the box
- [`KT-36798`](https://youtrack.jetbrains.com/issue/KT-36798) KJS: prohibit using @JsExport on a non-top-level declaration
- [`KT-37771`](https://youtrack.jetbrains.com/issue/KT-37771) KJS: Generated TypeScript does not recursively export base classes (can fail with generics)
- [`KT-38113`](https://youtrack.jetbrains.com/issue/KT-38113) Review public API of JS stdlib for IR BE
- [`KT-38765`](https://youtrack.jetbrains.com/issue/KT-38765) [JS / IR] AssertionError: class EventEmitter: Super class should be any: with nested class extending parent class
- [`KT-38768`](https://youtrack.jetbrains.com/issue/KT-38768) KJS IR: generate ES2015 (aka ES6) classes

### Libraries

#### New Features

- [`KT-11253`](https://youtrack.jetbrains.com/issue/KT-11253) Function to sum long or other numeric property of items in a collection
- [`KT-28933`](https://youtrack.jetbrains.com/issue/KT-28933) capitalize() with Locale argument in the JDK stdlib
- [`KT-34142`](https://youtrack.jetbrains.com/issue/KT-34142) Create SortedMap with Comparator and items
- [`KT-34506`](https://youtrack.jetbrains.com/issue/KT-34506) Add Sequence.flatMap overload that works on Iterable
- [`KT-36894`](https://youtrack.jetbrains.com/issue/KT-36894) Support flatMapIndexed in the Collections API
- [`KT-38480`](https://youtrack.jetbrains.com/issue/KT-38480) Introduce experimental annotation for enabling overload resolution by lambda result
- [`KT-38708`](https://youtrack.jetbrains.com/issue/KT-38708) minOf/maxOf functions to return min/max value provided by selector
- [`KT-39707`](https://youtrack.jetbrains.com/issue/KT-39707) Make some interfaces in stdlib functional

#### Performance Improvements

- [`KT-23142`](https://youtrack.jetbrains.com/issue/KT-23142) toHashSet is suboptimal for inputs with a lot of duplicates

#### Fixes

- [`KT-21266`](https://youtrack.jetbrains.com/issue/KT-21266) Add module-info for standard library artifacts
- [`KT-23322`](https://youtrack.jetbrains.com/issue/KT-23322) Document 'reduce' operation behavior on empty collections
- [`KT-28753`](https://youtrack.jetbrains.com/issue/KT-28753) Comparing floating point values in array/list operations 'contains', 'indexOf', 'lastIndexOf': IEEE 754 or total order
- [`KT-30083`](https://youtrack.jetbrains.com/issue/KT-30083) Annotate KTypeProjection.STAR with JvmField in a compatible way
- [`KT-30084`](https://youtrack.jetbrains.com/issue/KT-30084) Annotate functions in KTypeProjection.Companion with JvmStatic
- [`KT-31343`](https://youtrack.jetbrains.com/issue/KT-31343) Deprecate old String <-> CharArray, ByteArray conversion api
- [`KT-34596`](https://youtrack.jetbrains.com/issue/KT-34596) Add some validation to KTypeProjection constructor
- [`KT-35978`](https://youtrack.jetbrains.com/issue/KT-35978) Review and remove experimental stdlib API status for 1.4
- [`KT-38388`](https://youtrack.jetbrains.com/issue/KT-38388) Document `fromIndex` and `toIndex` parameters
- [`KT-38854`](https://youtrack.jetbrains.com/issue/KT-38854) Gradually change the return type of collection min/max functions to non-nullable
- [`KT-39023`](https://youtrack.jetbrains.com/issue/KT-39023) Document split(Pattern) extension differences from Pattern.split
- [`KT-39064`](https://youtrack.jetbrains.com/issue/KT-39064) Introduce minOrNull and maxOrNull extension functions on collections
- [`KT-39235`](https://youtrack.jetbrains.com/issue/KT-39235) Lift experimental annotation from bit operations
- [`KT-39237`](https://youtrack.jetbrains.com/issue/KT-39237) Lift experimental annotation from common StringBuilder
- [`KT-39238`](https://youtrack.jetbrains.com/issue/KT-39238) Appendable.appendRange - remove nullability
- [`KT-39239`](https://youtrack.jetbrains.com/issue/KT-39239) Lift experimental annotation from String <-> utf8 conversion api
- [`KT-39244`](https://youtrack.jetbrains.com/issue/KT-39244) KJS: update polyfills, all or most of them must not be enumerable
- [`KT-39330`](https://youtrack.jetbrains.com/issue/KT-39330) Migrate declarations from kotlin.dom and kotlin.browser packages to kotlinx.*

### Middle-end. IR

- [`KT-31088`](https://youtrack.jetbrains.com/issue/KT-31088) need a way to compute fake overrides for pure IR
- [`KT-33207`](https://youtrack.jetbrains.com/issue/KT-33207) Kotlin/Native: KNPE during deserialization of an inner class
- [`KT-33267`](https://youtrack.jetbrains.com/issue/KT-33267) Kotlin/Native: Deserialization error for an "inner" extension property imported from a class
- [`KT-37255`](https://youtrack.jetbrains.com/issue/KT-37255) Make psi2ir aware of declarations provided by compiler plugins

### Reflection

- [`KT-22936`](https://youtrack.jetbrains.com/issue/KT-22936) Not all things can be changed to `createType` yet, and now `defaultType` methods are starting to fail
- [`KT-32241`](https://youtrack.jetbrains.com/issue/KT-32241) Move KType.javaType into stdlib from reflect
- [`KT-34344`](https://youtrack.jetbrains.com/issue/KT-34344) KType.javaType implementation throws when invoked with a typeOf<T>()
- [`KT-38491`](https://youtrack.jetbrains.com/issue/KT-38491) IllegalArgumentException when using callBy on function with inline class parameters and default arguments
- [`KT-38881`](https://youtrack.jetbrains.com/issue/KT-38881) Add KClass.isFun modifier of functional interfaces to reflection

### Tools. Android Extensions

- [`KT-25807`](https://youtrack.jetbrains.com/issue/KT-25807) Kotlin extension annotation @Parcelize in AIDL returns Object instead of original T

### Tools. CLI

- [`KT-30211`](https://youtrack.jetbrains.com/issue/KT-30211) Support a way to pass arguments to the underlying JVM in kotlinc batch scripts on Windows
- [`KT-30778`](https://youtrack.jetbrains.com/issue/KT-30778) kotlin-compiler.jar contains shaded but not relocated kotlinx.coroutines
- [`KT-38070`](https://youtrack.jetbrains.com/issue/KT-38070) Compiler option to bypass prerelease metadata incompatibility error
- [`KT-38413`](https://youtrack.jetbrains.com/issue/KT-38413) Add JVM target bytecode version 14

### Tools. Compiler Plugins

- [`KT-39274`](https://youtrack.jetbrains.com/issue/KT-39274) [KJS / IR] Custom serializer for class without zero argument constructor doesn't compile

### Tools. Gradle

- [`KT-25428`](https://youtrack.jetbrains.com/issue/KT-25428) Kotlin Gradle Plugin: Use new Gradle API for Lazy tasks
- [`KT-34487`](https://youtrack.jetbrains.com/issue/KT-34487) Gradle build fails with "Cannot run program "java": error=7, Argument list too long
- [`KT-35957`](https://youtrack.jetbrains.com/issue/KT-35957) MPP IC fails with "X has several compatible actual declarations" error
- [`KT-38250`](https://youtrack.jetbrains.com/issue/KT-38250) Drop support for Gradle versions older than 5.3 in the Kotlin Gradle plugin

### Tools. Gradle. JS

#### New Features

- [`KT-30619`](https://youtrack.jetbrains.com/issue/KT-30619) Support NPM transitive dependencies in multi-platform JS target
- [`KT-38286`](https://youtrack.jetbrains.com/issue/KT-38286) [Gradle, JS] Error handling on Webpack problems

#### Fixes

- [`KT-31669`](https://youtrack.jetbrains.com/issue/KT-31669) Gradle/JS: rise error when plugin loaded more than once
- [`KT-32531`](https://youtrack.jetbrains.com/issue/KT-32531) [Gradle/JS] Add scoped NPM dependencies
- [`KT-34832`](https://youtrack.jetbrains.com/issue/KT-34832) [Kotlin/JS] Failed build after webpack run (Karma not found)
- [`KT-35194`](https://youtrack.jetbrains.com/issue/KT-35194) Kotlin/JS: browserRun fails with "address already in use" when trying to connect to local server
- [`KT-35611`](https://youtrack.jetbrains.com/issue/KT-35611) Kotlin Gradle plugin should report `kotlin2js` plugin ID as deprecated
- [`KT-35641`](https://youtrack.jetbrains.com/issue/KT-35641) Kotlin Gradle plugin should report `kotlin-dce-js` plugin ID as deprecated
- [`KT-36410`](https://youtrack.jetbrains.com/issue/KT-36410) JS: Collect stats about IR backend usage
- [`KT-36451`](https://youtrack.jetbrains.com/issue/KT-36451) KJS Adding npm dependency breaks Webpack devserver reloading
- [`KT-37258`](https://youtrack.jetbrains.com/issue/KT-37258) Kotlin/JS + Gradle: in continuous mode kotlinNpmInstall time to time outputs "ENOENT: no such file or directory" error
- [`KT-38109`](https://youtrack.jetbrains.com/issue/KT-38109) [Gradle, JS] Error handling on Karma launcher problems
- [`KT-38331`](https://youtrack.jetbrains.com/issue/KT-38331) Add an ability to control generating externals for npm deps individually
- [`KT-38485`](https://youtrack.jetbrains.com/issue/KT-38485) [Gradle, JS] Unable to configure JS compiler with string
- [`KT-38683`](https://youtrack.jetbrains.com/issue/KT-38683) Remove possibility to set NPM dependency without version
- [`KT-38990`](https://youtrack.jetbrains.com/issue/KT-38990) Support multiple range versions for NPM dependencies
- [`KT-38994`](https://youtrack.jetbrains.com/issue/KT-38994) Remove possibility to set NPM dependency with npm(org, name, version)
- [`KT-39109`](https://youtrack.jetbrains.com/issue/KT-39109) ArithmeticException: "/ by zero" caused by kotlinNodeJsSetup task with enabled gradle caching on Windows
- [`KT-39210`](https://youtrack.jetbrains.com/issue/KT-39210) Kotlin/JS: with both JS and MPP modules in the same project Gradle configuration fails on `nodejs {}` and `browser {}`
- [`KT-39377`](https://youtrack.jetbrains.com/issue/KT-39377) Use standard source-map-loader instead of custom one

### Tools. Gradle. Multiplatform

- [`KT-39184`](https://youtrack.jetbrains.com/issue/KT-39184) Support publication of Kotlin-distributed libraries with Gradle Metadata
- [`KT-39304`](https://youtrack.jetbrains.com/issue/KT-39304) Gradle import error `java.util.NoSuchElementException: Key source set foo is missing in the map` on unused source set

### Tools. Gradle. Native

- [`KT-37514`](https://youtrack.jetbrains.com/issue/KT-37514) CocoaPods Gradle plugin: Support building from terminal projects for several platforms
- [`KT-38440`](https://youtrack.jetbrains.com/issue/KT-38440) Make error message about missing Podfile path for cocoapods integration actionable for a user
- [`KT-38991`](https://youtrack.jetbrains.com/issue/KT-38991) Gradle MPP plugin: Enable parallel in-process execution for K/N compiler
- [`KT-39935`](https://youtrack.jetbrains.com/issue/KT-39935) Support overriding the `KotlinNativeCompile` task sources
- [`KT-37512`](https://youtrack.jetbrains.com/issue/KT-37512) Cocoapods Gradle plugin: Improve error logging for external tools

### Tools. J2K

- [`KT-35169`](https://youtrack.jetbrains.com/issue/KT-35169) Do not show "Inline local variable" popup during "Cleaning up code" phase of J2K
- [`KT-38004`](https://youtrack.jetbrains.com/issue/KT-38004) J2K breaks java getter call in java code
- [`KT-38450`](https://youtrack.jetbrains.com/issue/KT-38450) J2K should convert Java SAM interfaces to Kotlin fun interfaces

### Tools. JPS

- [`KT-27458`](https://youtrack.jetbrains.com/issue/KT-27458) The Kotlin standard library is not found in the module graph ... in a non-Kotlin project.
- [`KT-29552`](https://youtrack.jetbrains.com/issue/KT-29552) Project is completely rebuilt after each gradle sync.

### Tools. Scripts

- [`KT-37766`](https://youtrack.jetbrains.com/issue/KT-37766) Impossible to apply compiler plugins onto scripts with the new scripting API

### Tools. kapt

- [`KT-29355`](https://youtrack.jetbrains.com/issue/KT-29355) Provide access to default values for primary constructor properties


## 1.4-M2

### Compiler

#### New Features

- [`KT-37432`](https://youtrack.jetbrains.com/issue/KT-37432) Do not include annotations fields into 'visibility must be explicitly specified' check in api mode

#### Performance Improvements

- [`KT-27362`](https://youtrack.jetbrains.com/issue/KT-27362) Anonymous classes representing function/property references contain rarely used methods
- [`KT-35626`](https://youtrack.jetbrains.com/issue/KT-35626) NI: Performance problem with many type parameters
- [`KT-36047`](https://youtrack.jetbrains.com/issue/KT-36047) Compiler produces if-chain instead of switch when when subject captured as variable
- [`KT-36638`](https://youtrack.jetbrains.com/issue/KT-36638) Use 'java/lang/StringBuilder.append (C)Ljava/lang/StringBuilder;' when appending single character in JVM_IR
- [`KT-37389`](https://youtrack.jetbrains.com/issue/KT-37389) Avoid type approximation during generation constraints with EQUALITY kind
- [`KT-37392`](https://youtrack.jetbrains.com/issue/KT-37392) Avoid substitution and type approximation for simple calls
- [`KT-37546`](https://youtrack.jetbrains.com/issue/KT-37546) NI: high memory and CPU consumption due to creating useless captured types (storing in approximated types cache, unneeded computations)

#### Fixes

- [`KT-11265`](https://youtrack.jetbrains.com/issue/KT-11265) Factory pattern and overload resolution ambiguity
- [`KT-27524`](https://youtrack.jetbrains.com/issue/KT-27524) Inline class is boxed when used with suspend modifier
- [`KT-27586`](https://youtrack.jetbrains.com/issue/KT-27586) ClassCastException occurs if the Result (or any other inline class) is returned from a lambda
- [`KT-30419`](https://youtrack.jetbrains.com/issue/KT-30419) Use boxed version of an inline class in return type position for covariant and generic-specialized overrides
- [`KT-31163`](https://youtrack.jetbrains.com/issue/KT-31163) FIR: consider replacing comparisons with compareTo calls and some additional intrinsics
- [`KT-31585`](https://youtrack.jetbrains.com/issue/KT-31585) ClassCastException with derived class delegated to generic class with inline class type argument
- [`KT-31823`](https://youtrack.jetbrains.com/issue/KT-31823) NI: Type mismatch with a star projection and `UnsafeVariance`
- [`KT-33119`](https://youtrack.jetbrains.com/issue/KT-33119) Pre-increment for inline class wrapping Int compiles to direct increment instead of inc-impl
- [`KT-33715`](https://youtrack.jetbrains.com/issue/KT-33715) Kotlin/Native: metadata compiler
- [`KT-34048`](https://youtrack.jetbrains.com/issue/KT-34048) IllegalAccessError when initializing val property in EXACTLY_ONCE lambda
- [`KT-34433`](https://youtrack.jetbrains.com/issue/KT-34433) NI: Type mismatch with a star projection and `UnsafeVariance`
- [`KT-35133`](https://youtrack.jetbrains.com/issue/KT-35133) FIR Java: don't set 'isOperator' for methods with non-operator names
- [`KT-35234`](https://youtrack.jetbrains.com/issue/KT-35234) ClassCastException with creating an inline class from a function reference of covariant or generic-specialized override
- [`KT-35406`](https://youtrack.jetbrains.com/issue/KT-35406) Generic type implicitly inferred as Nothing with no warning
- [`KT-35587`](https://youtrack.jetbrains.com/issue/KT-35587) Plain namespace strings in JvmNameResolver.PREDEFINED_STRINGS are prone to namespace changes during jar relocation.
- [`KT-36044`](https://youtrack.jetbrains.com/issue/KT-36044) NI: premature fixation a type variable if there were nested lambdas (constraint source was the deepest lambda)
- [`KT-36057`](https://youtrack.jetbrains.com/issue/KT-36057) [FIR] Incorrect smartcast
- [`KT-36069`](https://youtrack.jetbrains.com/issue/KT-36069) NI: TYPE_MISMATCH caused by incorrect inference to Nothing
- [`KT-36125`](https://youtrack.jetbrains.com/issue/KT-36125) Callable reference resolution ambiguity error is not displayed properly in the IDE
- [`KT-36191`](https://youtrack.jetbrains.com/issue/KT-36191) IDE locks loading packages and editing file containing `try` keyword inside string template
- [`KT-36222`](https://youtrack.jetbrains.com/issue/KT-36222) NI: Improve error message about nullability mismatch for a generic call
- [`KT-36249`](https://youtrack.jetbrains.com/issue/KT-36249) NI doesn't use upper bound for T of called function during infer return type and as a result infer it to `Any?` if the resulting type was intersection type
- [`KT-36345`](https://youtrack.jetbrains.com/issue/KT-36345) FIR: record argument mapping for use in back-end
- [`KT-36446`](https://youtrack.jetbrains.com/issue/KT-36446) NI: "UnsupportedOperationException no descriptor for type constructor of IntegerLiteralType[Int,Long,Byte,Short]" with BuilderInference and delegate
- [`KT-36758`](https://youtrack.jetbrains.com/issue/KT-36758) [FIR] Unresolved callable reference to member of local class
- [`KT-36759`](https://youtrack.jetbrains.com/issue/KT-36759) [FIR] Unsupported callable reference resolution for methods with default parameters
- [`KT-36762`](https://youtrack.jetbrains.com/issue/KT-36762) [FIR] Unresolved `array.clone()`
- [`KT-36764`](https://youtrack.jetbrains.com/issue/KT-36764) [FIR] Bug in inference with DefinitelyNotNull types
- [`KT-36816`](https://youtrack.jetbrains.com/issue/KT-36816) NI: definitely not-null (T!!) types in invariant positions don't approximate to T inside inference process
- [`KT-36819`](https://youtrack.jetbrains.com/issue/KT-36819) NI: premature completion of lambdas, which are passed somewhere
- [`KT-36850`](https://youtrack.jetbrains.com/issue/KT-36850) Incorrect private visibility of sealed class constructors
- [`KT-36856`](https://youtrack.jetbrains.com/issue/KT-36856) Throwing exception when there is inheritance in Kotlin from Java class, which contains methods with the same JVM descriptors
- [`KT-36879`](https://youtrack.jetbrains.com/issue/KT-36879) Introduce FIR_IDENTICAL in diagnostic tests
- [`KT-36881`](https://youtrack.jetbrains.com/issue/KT-36881) FIR: completion don't runs for return expressions
- [`KT-36887`](https://youtrack.jetbrains.com/issue/KT-36887) [FIR] Unresolved member in nested lambda in initializer
- [`KT-36905`](https://youtrack.jetbrains.com/issue/KT-36905) [FIR] Unresolved in lambda in default argument position
- [`KT-36953`](https://youtrack.jetbrains.com/issue/KT-36953) AssertionError: "Unsigned type expected: null" when there is a range with an unsigned type
- [`KT-37009`](https://youtrack.jetbrains.com/issue/KT-37009) FIR: Bound smart-cast lost
- [`KT-37027`](https://youtrack.jetbrains.com/issue/KT-37027) FIR: Wrong projection on spread + varargs on non-final types
- [`KT-37038`](https://youtrack.jetbrains.com/issue/KT-37038) NI: redundant lambda's arrow breaks CST calculation for extension lambdas
- [`KT-37043`](https://youtrack.jetbrains.com/issue/KT-37043) NI: inference T to Any? if there was elvis between Java out-type and reified `materialize` for this type without out projection
- [`KT-37066`](https://youtrack.jetbrains.com/issue/KT-37066) [FIR] Wrong type inference for lambdas
- [`KT-37070`](https://youtrack.jetbrains.com/issue/KT-37070) [FIR] Unresolved parameters of outer lambda in scope of inner lambda
- [`KT-37087`](https://youtrack.jetbrains.com/issue/KT-37087) "IllegalStateException: Can't find method 'invoke()'" for mutable property reference in default value of an inline function parameter
- [`KT-37091`](https://youtrack.jetbrains.com/issue/KT-37091) [FIR] Wrong inferred type of when-expression if when-argument  is not-null-asserted and type is not specifies explicitly
- [`KT-37176`](https://youtrack.jetbrains.com/issue/KT-37176) [FIR] Incorrect resolution mode for statements of block
- [`KT-37302`](https://youtrack.jetbrains.com/issue/KT-37302) Unexpected conversion:`Int` constant inferred to `Long` in when expression
- [`KT-37327`](https://youtrack.jetbrains.com/issue/KT-37327) FIR: Smartcast problem
- [`KT-37343`](https://youtrack.jetbrains.com/issue/KT-37343) NI: definitely not null types pre-approximation is inconsistent with OI
- [`KT-37380`](https://youtrack.jetbrains.com/issue/KT-37380) NI: broken some code with def not null types due to skip needed constraints
- [`KT-37419`](https://youtrack.jetbrains.com/issue/KT-37419) NI: UNRESOLVED_REFERENCE_WRONG_RECEIVER is reported in case lambda with receiver is returned from `when` expression
- [`KT-37434`](https://youtrack.jetbrains.com/issue/KT-37434) Kotlin/JS, Kotlin/Native: fun interfaces: SAM conversion to Kotlin interface is not compiled with RESOLUTION_TO_CLASSIFIER
- [`KT-37447`](https://youtrack.jetbrains.com/issue/KT-37447) Expression from annotation entry in value parameter inside value parameter should be marked as USED_AS_EXPRESSION
- [`KT-37453`](https://youtrack.jetbrains.com/issue/KT-37453) Type arguments not checked to be empty for candidates with no declared parameters
- [`KT-37488`](https://youtrack.jetbrains.com/issue/KT-37488) [FIR] Incorrect exhaustiveness checking for branches with equals to object that implements sealed class
- [`KT-37497`](https://youtrack.jetbrains.com/issue/KT-37497) NI:  'super' is not an expression, it can not be used as a receiver for extension functions
- [`KT-37530`](https://youtrack.jetbrains.com/issue/KT-37530) NI: instantiation of abstract class via callable reference argument causes run time InstantiationError
- [`KT-37531`](https://youtrack.jetbrains.com/issue/KT-37531) NI: callable reference argument with left hand side type parameter causes frontend exception
- [`KT-37554`](https://youtrack.jetbrains.com/issue/KT-37554) NI: Nothing is inferred incorrectly with elvis return
- [`KT-37579`](https://youtrack.jetbrains.com/issue/KT-37579) NI: inconsistent behaviour with OI around implicit invoke convention after safe call with additional implicit receiver
- [`KT-37604`](https://youtrack.jetbrains.com/issue/KT-37604) "VerifyError: Call to wrong <init> method" in 'invoke' for adapted callable reference to constructor with coercion to Unit
- [`KT-37621`](https://youtrack.jetbrains.com/issue/KT-37621) NI: type variable is inferred to Nothing if the second branch was Nothing and there was upper bound for a type parameter
- [`KT-37626`](https://youtrack.jetbrains.com/issue/KT-37626) NI: builder inference with expected type breaks class references resolution for a class with parameters
- [`KT-37627`](https://youtrack.jetbrains.com/issue/KT-37627) NI: wrong order of the type variable fixation (Nothing? against a call with lambda)
- [`KT-37628`](https://youtrack.jetbrains.com/issue/KT-37628) NI: wrong approximation of type argument to star projection during common super type calculation
- [`KT-37644`](https://youtrack.jetbrains.com/issue/KT-37644) NI: appeared exception during incorporation of a captured type into a type variable for elvis resolve
- [`KT-37650`](https://youtrack.jetbrains.com/issue/KT-37650) NI: it's impossible to infer a type variable with the participation of a wrapped covariant type
- [`KT-37718`](https://youtrack.jetbrains.com/issue/KT-37718) False positive unused parameter for @JvmStatic main function in object
- [`KT-37779`](https://youtrack.jetbrains.com/issue/KT-37779) ClassCastException: Named argument without spread operator for vararg parameter causes code to crash on runtime
- [`KT-37832`](https://youtrack.jetbrains.com/issue/KT-37832) In MPP, subtypes of types defined in legacy libraries, like stdlib, cannot properly resolve on the consumer side receviing both
- [`KT-37861`](https://youtrack.jetbrains.com/issue/KT-37861) Capturing an outer class instance in a default parameter of inner class constructor causes VerifyError
- [`KT-37986`](https://youtrack.jetbrains.com/issue/KT-37986) Return value of function reference returning inline class mapped to 'java.lang.Object' is not boxed properly
- [`KT-37998`](https://youtrack.jetbrains.com/issue/KT-37998) '!!' operator on safe call of function returning inline class value causes CCE at runtime
- [`KT-38042`](https://youtrack.jetbrains.com/issue/KT-38042) Allow kotlin.Result as a return type only if one enabled inline classes explicitly
- [`KT-38134`](https://youtrack.jetbrains.com/issue/KT-38134) NI: Type mismatch with a star projection and `UnsafeVariance`
- [`KT-38298`](https://youtrack.jetbrains.com/issue/KT-38298) Inconsistent choice of candidate when both expect/actual are available (affects only `enableGranularSourceSetMetadata`)
- [`KT-38661`](https://youtrack.jetbrains.com/issue/KT-38661) NI: "Cannot infer type variable TypeVariable" with lambda with receiver
- [`KT-38668`](https://youtrack.jetbrains.com/issue/KT-38668) Project with module dependency in KN, build fails with Kotlin 1.3.71 and associated libs but passes with 1.3.61.
- [`KT-38857`](https://youtrack.jetbrains.com/issue/KT-38857) Class versions V1_5 or less must use F_NEW frames.
- [`KT-39113`](https://youtrack.jetbrains.com/issue/KT-39113) "AssertionError: Uninitialized value on stack" with EXACTLY_ONCE contract in non-inline function and lambda destructuring
- [`KT-28483`](https://youtrack.jetbrains.com/issue/KT-28483) Override of generic-return-typed function with inline class should lead to a boxing
- [`KT-37963`](https://youtrack.jetbrains.com/issue/KT-37963) ClassCastException: Value of inline class represented as 'java.lang.Object' is not boxed properly on return from lambda

### Docs & Examples

- [`KT-35231`](https://youtrack.jetbrains.com/issue/KT-35231) toMutableList documentation is vague

### IDE

#### Performance Improvements

- [`KT-30541`](https://youtrack.jetbrains.com/issue/KT-30541) EDT Freeze after new Kotlin Script creation
- [`KT-35050`](https://youtrack.jetbrains.com/issue/KT-35050) Significant freezes due to findSdkAcrossDependencies()
- [`KT-37301`](https://youtrack.jetbrains.com/issue/KT-37301) Freeze when "Optimize Imports" in KotlinImportOptimizer
- [`KT-37466`](https://youtrack.jetbrains.com/issue/KT-37466) Invalidate partialBodyResolveCache on OCB
- [`KT-37467`](https://youtrack.jetbrains.com/issue/KT-37467) PerFileAnalysisCache.fetchAnalysisResults
- [`KT-37993`](https://youtrack.jetbrains.com/issue/KT-37993) Do not resolve references if paste code is located in the same origin
- [`KT-38318`](https://youtrack.jetbrains.com/issue/KT-38318) Freezes in IDEA

#### Fixes

- [`KT-27935`](https://youtrack.jetbrains.com/issue/KT-27935) Functional typealias with typealias in type parameters causes UnsupportedOperationException in TypeSignatureMappingKt (IDEA analysis)
- [`KT-31668`](https://youtrack.jetbrains.com/issue/KT-31668) Complete statement for class declaration: add '()' to supertype
- [`KT-33473`](https://youtrack.jetbrains.com/issue/KT-33473) UAST: References to local variable are resolved to UastKotlinPsiVariable
- [`KT-34564`](https://youtrack.jetbrains.com/issue/KT-34564) Kotlin USimpleNameReferenceExpression for annotation parameter resolves to null for compiled Kotlin classes
- [`KT-34973`](https://youtrack.jetbrains.com/issue/KT-34973) Light class incorrectly claiming ambiguous method call from Java when one overload is synthetic
- [`KT-35801`](https://youtrack.jetbrains.com/issue/KT-35801) UAST: UnknownKotlinExpression for valid Kotlin annotated expression
- [`KT-35804`](https://youtrack.jetbrains.com/issue/KT-35804) UAST: Annotations missing from catch clause parameters
- [`KT-35848`](https://youtrack.jetbrains.com/issue/KT-35848) UAST:  ClassCastException when trying to invoke UElement for some wrapped PsiElements
- [`KT-36156`](https://youtrack.jetbrains.com/issue/KT-36156) Kotlin annotation attributes have blue color whereas white in Java
- [`KT-36275`](https://youtrack.jetbrains.com/issue/KT-36275) UAST: UCallExpression::resolve returns null for local function calls
- [`KT-36717`](https://youtrack.jetbrains.com/issue/KT-36717) Fix failing light class tests after switching plugin to language version 1.4
- [`KT-36877`](https://youtrack.jetbrains.com/issue/KT-36877) Message bundles for copy paste are missed in 201
- [`KT-36907`](https://youtrack.jetbrains.com/issue/KT-36907) IDE: `-Xuse-ir` setting on facet level does not affect highlighting
- [`KT-37133`](https://youtrack.jetbrains.com/issue/KT-37133) UAST: Annotating assignment expression sometimes leads to UnknownKotlinExpression
- [`KT-37312`](https://youtrack.jetbrains.com/issue/KT-37312) "Implement members" intention put function in the primary constructor if there are unused brackets in class
- [`KT-37613`](https://youtrack.jetbrains.com/issue/KT-37613) Uast: no parameters in reified method
- [`KT-37933`](https://youtrack.jetbrains.com/issue/KT-37933) Rare NPE in ProjectRootsUtilKt.isKotlinBinary [easy fix]
- [`KT-38081`](https://youtrack.jetbrains.com/issue/KT-38081) Configure kotlin in project produces IDE error "heavy operation and should not be call on AWT thread"
- [`KT-38354`](https://youtrack.jetbrains.com/issue/KT-38354) HMPP. IDE. Dependency leakage from leaf native to shared native module
- [`KT-38634`](https://youtrack.jetbrains.com/issue/KT-38634) IDE: Error on opening MPP project in 1.3.72 after opening it in 1.4-M2

### IDE. Code Style, Formatting

- [`KT-37870`](https://youtrack.jetbrains.com/issue/KT-37870) "Remove trailing comma" action stops working after applying and cancelling it

### IDE. Completion

- [`KT-36808`](https://youtrack.jetbrains.com/issue/KT-36808) Delete Flow.collect from autocompletion list or make it least prioritized
- [`KT-36860`](https://youtrack.jetbrains.com/issue/KT-36860) Provide convenient completion of extension functions from objects
- [`KT-37395`](https://youtrack.jetbrains.com/issue/KT-37395) Invalid callable reference completion of member extension

### IDE. Debugger

- [`KT-34906`](https://youtrack.jetbrains.com/issue/KT-34906) Implement Coroutine Debugger
- [`KT-35392`](https://youtrack.jetbrains.com/issue/KT-35392) Debugger omits meaningful part of the stacktrace even with disabled filter
- [`KT-36215`](https://youtrack.jetbrains.com/issue/KT-36215) Coroutines debugger tab is empty in Android Studio
- [`KT-37238`](https://youtrack.jetbrains.com/issue/KT-37238) Coroutines Debugger: dump creation fails every time
- [`KT-38047`](https://youtrack.jetbrains.com/issue/KT-38047) Coroutines Debugger: Assertion failed: “Should be invoked in manager thread, use DebuggerManagerThreadImpl” on moving to source code from suspended coroutine in project without debugger jar in classpath
- [`KT-38049`](https://youtrack.jetbrains.com/issue/KT-38049) Coroutines Debugger: NPE “null cannot be cast to non-null type com.sun.jdi.ObjectReference” is thrown by calling dumpCoroutines
- [`KT-38487`](https://youtrack.jetbrains.com/issue/KT-38487) Any Field Watch interaction causes a MissingResourceException

### IDE. Decompiler, Indexing, Stubs

- [`KT-37896`](https://youtrack.jetbrains.com/issue/KT-37896) IAE: "Argument for @NotNull parameter 'file' of IndexTodoCacheManagerImpl.getTodoCount must not be null" through KotlinTodoSearcher.processQuery()

### IDE. Gradle Integration

- [`KT-33809`](https://youtrack.jetbrains.com/issue/KT-33809) With `kotlin.mpp.enableGranularSourceSetsMetadata=true`, IDE misses dependsOn-relation between kotlin and android sourceSets, leading to issues with expect/actual matching
- [`KT-36354`](https://youtrack.jetbrains.com/issue/KT-36354) IDE: Gradle import from non-JVM projects: dependency to output artifact is created instead of module dependency
- [`KT-38037`](https://youtrack.jetbrains.com/issue/KT-38037) UnsupportedOperationException on sync gradle Kotlin project with at least two multiplatform modules

### IDE. Gradle. Script

- [`KT-36763`](https://youtrack.jetbrains.com/issue/KT-36763) Drop modification stamp for scripts after project import
- [`KT-37237`](https://youtrack.jetbrains.com/issue/KT-37237) Script configurations should be loaded during project import in case of errors
- [`KT-38041`](https://youtrack.jetbrains.com/issue/KT-38041) Do not request for script configuration after VCS update

### IDE. Inspections and Intentions

#### New Features

- [`KT-3262`](https://youtrack.jetbrains.com/issue/KT-3262) Inspection "Inner class could be nested"
- [`KT-15723`](https://youtrack.jetbrains.com/issue/KT-15723) Add 'Convert to value' quickfix for property containing only getter
- [`KT-34026`](https://youtrack.jetbrains.com/issue/KT-34026) Add "Remove argument" quick fix for redundant argument in constructor call
- [`KT-34332`](https://youtrack.jetbrains.com/issue/KT-34332) Add "Remove argument" quick fix for redundant argument in function call
- [`KT-34450`](https://youtrack.jetbrains.com/issue/KT-34450) `Convert function to property` intention should be also displayed on `fun` keyword
- [`KT-34593`](https://youtrack.jetbrains.com/issue/KT-34593) Invert 'if' condition: Invert `String.isNotEmpty` should be `String.isEmpty`
- [`KT-34819`](https://youtrack.jetbrains.com/issue/KT-34819) Inspection: report useless elvis "?: return null"
- [`KT-37849`](https://youtrack.jetbrains.com/issue/KT-37849) Support `ReplaceWith` for supertypes call

#### Performance Improvements

- [`KT-37515`](https://youtrack.jetbrains.com/issue/KT-37515) Deadlock

#### Fixes

- [`KT-12329`](https://youtrack.jetbrains.com/issue/KT-12329) "invert if" inserts unnecessary 'continue' for statement inside a loop with 'continue'
- [`KT-17615`](https://youtrack.jetbrains.com/issue/KT-17615) "Convert parameter to receiver" changes `this` to `this@ < no name provided >`
- [`KT-20868`](https://youtrack.jetbrains.com/issue/KT-20868) IntelliJ says method from anonymous inner class with inferred interface type is not used even though it is
- [`KT-20907`](https://youtrack.jetbrains.com/issue/KT-20907) Secondary constructor is marked as unused by IDE when called by typealias 
- [`KT-22368`](https://youtrack.jetbrains.com/issue/KT-22368) "Convert to block body" intention incorrectly formats closing brace
- [`KT-23510`](https://youtrack.jetbrains.com/issue/KT-23510) "Remove parameter" quick fix keeps lambda argument when it's out of parentheses
- [`KT-27601`](https://youtrack.jetbrains.com/issue/KT-27601) False positive "Unused import directive" for extension function used in KDoc
- [`KT-28085`](https://youtrack.jetbrains.com/issue/KT-28085) "Convert receiver to parameter" introduces incorrect this@class in lambda
- [`KT-30028`](https://youtrack.jetbrains.com/issue/KT-30028) "Convert parameter to receiver" introduces wrong 'this' qualifier for extension lambda receiver
- [`KT-31601`](https://youtrack.jetbrains.com/issue/KT-31601) "Remove redundant let call" changes semantics by introducing multiple safe calls
- [`KT-31800`](https://youtrack.jetbrains.com/issue/KT-31800) False positive "never used" with function in private val object expression
- [`KT-31912`](https://youtrack.jetbrains.com/issue/KT-31912) QF “Convert to anonymous object” do nothing on SAM-interfaces
- [`KT-32561`](https://youtrack.jetbrains.com/issue/KT-32561) "Property can be declared in constructor" causes another warning
- [`KT-32809`](https://youtrack.jetbrains.com/issue/KT-32809) Convert parameter to receiver inserts wrong qualifiers for this (when nothing needs to be changed)
- [`KT-34371`](https://youtrack.jetbrains.com/issue/KT-34371) "Surround with lambda" quickfix is not available for suspend lambda parameters.
- [`KT-34640`](https://youtrack.jetbrains.com/issue/KT-34640) Replace 'if' with 'when' leads to copy comment line above when from another if
- [`KT-36225`](https://youtrack.jetbrains.com/issue/KT-36225) KNPE: CodeInliner.processTypeParameterUsages with `ReplaceWith` for inline reified generic function
- [`KT-36266`](https://youtrack.jetbrains.com/issue/KT-36266) NPE when invoking Lift return out of if/when after intention becomes inapplicable but still beeing shown
- [`KT-36296`](https://youtrack.jetbrains.com/issue/KT-36296) False negative "Redundant SAM-constructor" with multiple SAM arguments
- [`KT-36367`](https://youtrack.jetbrains.com/issue/KT-36367) False negative "Redundant SAM-constructor" for kotlin functions
- [`KT-36368`](https://youtrack.jetbrains.com/issue/KT-36368) False negative "Redundant SAM-constructor" for fun interfaces in kotlin
- [`KT-36395`](https://youtrack.jetbrains.com/issue/KT-36395) False positive "Redundant SAM-constructor" with two java interfaces extending one another
- [`KT-36411`](https://youtrack.jetbrains.com/issue/KT-36411) "Put parameters on separate lines" and "Put parameters on one line" actions do not respect trailing comma
- [`KT-36482`](https://youtrack.jetbrains.com/issue/KT-36482) "Add JvmOverloads annotation" intention is still suggested for annotation's parameters
- [`KT-36686`](https://youtrack.jetbrains.com/issue/KT-36686) Implement members quickfix puts the implementation *before* the data class if it already has a body
- [`KT-36685`](https://youtrack.jetbrains.com/issue/KT-36685) "Convert to a range check" transform hex range to int if it is compared with "Less" or "Greater"
- [`KT-36707`](https://youtrack.jetbrains.com/issue/KT-36707) False positive redundant companion object on calling companion object members
- [`KT-36735`](https://youtrack.jetbrains.com/issue/KT-36735) Inspection 'Replace 'toString' with string template' miss curly braces and generates wrong code for constructor calls
- [`KT-36834`](https://youtrack.jetbrains.com/issue/KT-36834) Convert use-site targets and usages with convert property to fun intention
- [`KT-37213`](https://youtrack.jetbrains.com/issue/KT-37213) "Move to top level" intention does not update imports for extension functions
- [`KT-37496`](https://youtrack.jetbrains.com/issue/KT-37496) False positive "Remove redundant backticks" for multiple underscores variable name
- [`KT-37502`](https://youtrack.jetbrains.com/issue/KT-37502) False positive "redundant lambda arrow" with inline generic function with reified type in object and anonymous parameter name
- [`KT-37508`](https://youtrack.jetbrains.com/issue/KT-37508) "Convert receiver to parameter" breaks code in anonymous objects (this@ < no name provided >)
- [`KT-37576`](https://youtrack.jetbrains.com/issue/KT-37576) Kotlin InspectionSuppressor not being called for the kotlin's inspections
- [`KT-37749`](https://youtrack.jetbrains.com/issue/KT-37749) "Convert to anonymous object" intention is suggested for Java SAM conversion, but not for Kotlin
- [`KT-37781`](https://youtrack.jetbrains.com/issue/KT-37781) "Add modifier" intention/quickfix works incorrectly with functional interfaces
- [`KT-37893`](https://youtrack.jetbrains.com/issue/KT-37893) i18n: Incorrect quickfix name "Lift return out of '"

### IDE. KDoc

- [`KT-37361`](https://youtrack.jetbrains.com/issue/KT-37361) Support for showing rendered doc comments in editor

### IDE. Libraries

- [`KT-36276`](https://youtrack.jetbrains.com/issue/KT-36276) IDE: references to declarations in JavaScript KLib dependency are unresolved
- [`KT-37562`](https://youtrack.jetbrains.com/issue/KT-37562) IDE: references to JavaScript KLib dependency are unresolved, when project and library are compiled with "both" mode

### IDE. Navigation

- [`KT-18472`](https://youtrack.jetbrains.com/issue/KT-18472) UI lockup on find usages
- [`KT-18619`](https://youtrack.jetbrains.com/issue/KT-18619) Find Usages of element used via import alias does not show actual usage location
- [`KT-34088`](https://youtrack.jetbrains.com/issue/KT-34088) Navigate | Implementations action doesn't show implementations of Java methods in Kotlin files if method has parameters referring to generic type
- [`KT-35006`](https://youtrack.jetbrains.com/issue/KT-35006) IDE: "Navigate to inline function call site" from stack trace for nested inline call navigates to outer inline call
- [`KT-36138`](https://youtrack.jetbrains.com/issue/KT-36138) 628 second freeze when doing Find Usages on data class property
- [`KT-36218`](https://youtrack.jetbrains.com/issue/KT-36218) Show Kotlin file members in navigation bar
- [`KT-37494`](https://youtrack.jetbrains.com/issue/KT-37494) AnnotatedElementsSearch unable to find annotated property accessor

### IDE. Project View

- [`KT-32886`](https://youtrack.jetbrains.com/issue/KT-32886) Project tool window: Show Visibility Icons does nothing for Kotlin classes
- [`KT-37632`](https://youtrack.jetbrains.com/issue/KT-37632) IDE error on project structure opening

### IDE. Refactorings

#### Performance Improvements

- [`KT-37801`](https://youtrack.jetbrains.com/issue/KT-37801) Renaming private property with common name is very slow

#### Fixes

- [`KT-22733`](https://youtrack.jetbrains.com/issue/KT-22733) Refactor / Inline Function: fun with type parameter: KNPE at CodeInliner.processTypeParameterUsages()
- [`KT-27389`](https://youtrack.jetbrains.com/issue/KT-27389) MPP: Refactoring "Move Class" does not change the package declaration
- [`KT-29870`](https://youtrack.jetbrains.com/issue/KT-29870) Inline variable doesn't handle 'when' subject val correctly
- [`KT-33045`](https://youtrack.jetbrains.com/issue/KT-33045) Cover Move Refactoring by statistics (FUS)
- [`KT-36071`](https://youtrack.jetbrains.com/issue/KT-36071) Refactoring: Move top declaration implementation refactoring
- [`KT-36072`](https://youtrack.jetbrains.com/issue/KT-36072) Empty files are removed on Refactor/Move action with turned off "Delete empty source files" option
- [`KT-36114`](https://youtrack.jetbrains.com/issue/KT-36114) java.lang.NoClassDefFoundError exception on Refactor/Move of kotlin function if it is referenced in java
- [`KT-36129`](https://youtrack.jetbrains.com/issue/KT-36129) java.lang.Throwable: Invalid file exception occurs on Refactor/Move of class from kotlin script
- [`KT-36382`](https://youtrack.jetbrains.com/issue/KT-36382) Move file refactoring breaks ktor application config
- [`KT-36504`](https://youtrack.jetbrains.com/issue/KT-36504) "Extract property" suggests potentially invalid name for new property
- [`KT-37637`](https://youtrack.jetbrains.com/issue/KT-37637) KotlinChangeSignatureUsageProcessor broke Change Signature in Python plugin
- [`KT-37797`](https://youtrack.jetbrains.com/issue/KT-37797) Useless "Value for new paramater" step in 'Update usages to reflect signature changes' for method with default parameter value
- [`KT-37822`](https://youtrack.jetbrains.com/issue/KT-37822) Improve message "Inline all references and remove the kind"
- [`KT-38348`](https://youtrack.jetbrains.com/issue/KT-38348) UL methods return signature without generic type parameters
- [`KT-38527`](https://youtrack.jetbrains.com/issue/KT-38527) Move nested class to upper level fails silently: MissingResourceException

### IDE. Script

- [`KT-37765`](https://youtrack.jetbrains.com/issue/KT-37765) NCDFE KJvmCompiledModuleInMemory on running `*.main.kts` script

### IDE. Tests Support

- [`KT-36716`](https://youtrack.jetbrains.com/issue/KT-36716) With `kotlin.gradle.testing.enabled=true`, gradle console output gets extra ijLog messages
- [`KT-36910`](https://youtrack.jetbrains.com/issue/KT-36910) There are no Run/Debug actions in context menu for non-JVM platform-specific test results
- [`KT-37037`](https://youtrack.jetbrains.com/issue/KT-37037) [JS, Debug] Node.JS test debug doesn't stop on breakpoints

### IDE. Wizards

#### New Features

- [`KT-36150`](https://youtrack.jetbrains.com/issue/KT-36150) New Project Wizard: provide a way to connect with "dependsOn" relation the added project modules
- [`KT-36179`](https://youtrack.jetbrains.com/issue/KT-36179) New Project Wizard: it's impossible to make a JVM target friendly to Java code in a multiplatform project

#### Fixes

- [`KT-35583`](https://youtrack.jetbrains.com/issue/KT-35583) New Project wizard: don't suggest build systems which cannot be used
- [`KT-35585`](https://youtrack.jetbrains.com/issue/KT-35585) New Project wizard: remember choices which have sense for many projects
- [`KT-35691`](https://youtrack.jetbrains.com/issue/KT-35691) New Project wizard: artifact and group values are effectively ignored
- [`KT-35693`](https://youtrack.jetbrains.com/issue/KT-35693) New Project wizard creates pom.xml / build.gradle referring to release Kotlin version only
- [`KT-36136`](https://youtrack.jetbrains.com/issue/KT-36136) New Project Wizard: generated projects are missing m2 Gradle repository
- [`KT-36137`](https://youtrack.jetbrains.com/issue/KT-36137) New Project Wizard: "multiplatform" shall be written as a single word, without the capital P in the middle
- [`KT-36155`](https://youtrack.jetbrains.com/issue/KT-36155) New Project Wizard: show warning "Multiplatform project cannot be generated" only for MPP projects
- [`KT-36162`](https://youtrack.jetbrains.com/issue/KT-36162) New Project Wizard: make the error messages in modules editor actionable
- [`KT-36163`](https://youtrack.jetbrains.com/issue/KT-36163) New Project Wizard: remove trailing spaces in Android SDK Path automatically
- [`KT-36166`](https://youtrack.jetbrains.com/issue/KT-36166) New Project Wizard: addition of Android target into a multiplatform project doesn't add a necessary minimal Android configuration
- [`KT-36169`](https://youtrack.jetbrains.com/issue/KT-36169) New Project Wizard: Android-related projects failed to build
- [`KT-36176`](https://youtrack.jetbrains.com/issue/KT-36176) New Project Wizard: module templates doesn't work for multiplatform projects
- [`KT-36177`](https://youtrack.jetbrains.com/issue/KT-36177) New Project Wizard: it's impossible to add more than one target of JVM kind to a multiplatform project
- [`KT-36180`](https://youtrack.jetbrains.com/issue/KT-36180) New Project Wizard: it's impossible to set target JVM version for a JVM module
- [`KT-36226`](https://youtrack.jetbrains.com/issue/KT-36226) New Project Wizard: add Mobile Android/iOS project template
- [`KT-36267`](https://youtrack.jetbrains.com/issue/KT-36267) New Project Wizard: flatten JVM targets list for multiplatform projects
- [`KT-36328`](https://youtrack.jetbrains.com/issue/KT-36328) New Project wizard fails for certain templates with AE: "Wrong line separators" at KotlinFormattingModelBuilder.createModel()
- [`KT-37599`](https://youtrack.jetbrains.com/issue/KT-37599) New Project Wizard: Open Kotlin Wizard via hyperlink
- [`KT-37667`](https://youtrack.jetbrains.com/issue/KT-37667) New project wizard: implement new UI design
- [`KT-37674`](https://youtrack.jetbrains.com/issue/KT-37674) Kotlin version in build files includes the IDEA version
- [`KT-38061`](https://youtrack.jetbrains.com/issue/KT-38061) New Project wizard 1.4: do not allow choosing build system if corresponding IJ plugin is disabled
- [`KT-38567`](https://youtrack.jetbrains.com/issue/KT-38567) New Project wizard 1.4+: Improve processing case when project with required path already exists
- [`KT-38579`](https://youtrack.jetbrains.com/issue/KT-38579) New Project wizard 1.4+: multiplatform mobile application: build fails on lint task: Configuration with name 'compileClasspath' not found
- [`KT-38929`](https://youtrack.jetbrains.com/issue/KT-38929) New project wizard: update libraries in project template according to kotlin IDE plugin version
- [`KT-38417`](https://youtrack.jetbrains.com/issue/KT-38417) Enable new project wizard by-default
- [`KT-38158`](https://youtrack.jetbrains.com/issue/KT-38158) java.lang.NullPointerException when try to create new project via standard wizard on Mac os

### JS. Tools

- [`KT-36484`](https://youtrack.jetbrains.com/issue/KT-36484) KotlinJS, MPP: Compilation throws "TypeError: b is not a function" only in production mode

### JavaScript

- [`KT-31126`](https://youtrack.jetbrains.com/issue/KT-31126) Invalid JS constructor call (primary ordinary -> secondary external)
- [`KT-35966`](https://youtrack.jetbrains.com/issue/KT-35966) Make @JsExport annotation usable in common code
- [`KT-37128`](https://youtrack.jetbrains.com/issue/KT-37128) KJS: StackOverflowException when using reified recursive bound for type parameter
- [`KT-37163`](https://youtrack.jetbrains.com/issue/KT-37163) KJS: NullPointerException on using intersection type as a reified one
- [`KT-37418`](https://youtrack.jetbrains.com/issue/KT-37418) Support `AssociatedObjectKey` and `findAssociatedObject` in JS IR BE

### Libraries

#### New Features

- [`KT-8658`](https://youtrack.jetbrains.com/issue/KT-8658) Add property delegates which call get/set on the given KProperty instance, e.g. a property reference
- [`KT-12448`](https://youtrack.jetbrains.com/issue/KT-12448) Make `@Suppress` applicable for type parameters
- [`KT-22932`](https://youtrack.jetbrains.com/issue/KT-22932) String.format should support null locale
- [`KT-23514`](https://youtrack.jetbrains.com/issue/KT-23514) assertFailsWith should link unexpected exception as cause
- [`KT-23737`](https://youtrack.jetbrains.com/issue/KT-23737) JS & MPP: Support exception cause and addSuppressed
- [`KT-25651`](https://youtrack.jetbrains.com/issue/KT-25651) Add shuffle() to Array<T>, ByteArray, IntArray, etc to match MutableList
- [`KT-26494`](https://youtrack.jetbrains.com/issue/KT-26494) Create an interface with provideDelegate()
- [`KT-27729`](https://youtrack.jetbrains.com/issue/KT-27729) Inherit `ReadWriteProperty` from `ReadOnlyProperty`
- [`KT-28290`](https://youtrack.jetbrains.com/issue/KT-28290) Add the onEach extension function to the Array
- [`KT-29182`](https://youtrack.jetbrains.com/issue/KT-29182) SIZE_BYTES/BITS for Float and Double
- [`KT-30372`](https://youtrack.jetbrains.com/issue/KT-30372) Add associateWith to Array<T>
- [`KT-33906`](https://youtrack.jetbrains.com/issue/KT-33906) Add vararg overloads for maxOf/minOf functions
- [`KT-34161`](https://youtrack.jetbrains.com/issue/KT-34161) Array.contentEquals/contentHashCode/contentToString should allow null array receiver and argument
- [`KT-35851`](https://youtrack.jetbrains.com/issue/KT-35851) Add setOfNotNull function
- [`KT-36866`](https://youtrack.jetbrains.com/issue/KT-36866) reduceIndexedOrNull
- [`KT-36955`](https://youtrack.jetbrains.com/issue/KT-36955) stdlib: Reverse range and sortDescending range
- [`KT-37161`](https://youtrack.jetbrains.com/issue/KT-37161) Add #onEachIndexed similar to #forEachIndexed
- [`KT-37603`](https://youtrack.jetbrains.com/issue/KT-37603) Throwable.stackTraceToString: string with detailed information about exception
- [`KT-37751`](https://youtrack.jetbrains.com/issue/KT-37751) Implement shuffled() method Sequences
- [`KT-37804`](https://youtrack.jetbrains.com/issue/KT-37804) Add 'fail' in kotlin-test that allows to specify cause
- [`KT-37839`](https://youtrack.jetbrains.com/issue/KT-37839) StringBuilder.appendLine in stdlib-common
- [`KT-37910`](https://youtrack.jetbrains.com/issue/KT-37910) Support Media Source Extension (MSE) and Encrypted Media Extensions (EME) in Kotlin/Js
- [`KT-38044`](https://youtrack.jetbrains.com/issue/KT-38044) Common Throwable.printStackTrace

#### Performance Improvements

- [`KT-37416`](https://youtrack.jetbrains.com/issue/KT-37416) readLine() is very slow

#### Fixes

- [`KT-13887`](https://youtrack.jetbrains.com/issue/KT-13887) Double/Float companion values such as NaN should be constants
- [`KT-14119`](https://youtrack.jetbrains.com/issue/KT-14119)  `String.toBoolean()` should be `String?.toBoolean()`
- [`KT-16529`](https://youtrack.jetbrains.com/issue/KT-16529) Names of KProperty's type parameters are inconsistent with ReadOnlyProperty/ReadWriteProperty
- [`KT-36356`](https://youtrack.jetbrains.com/issue/KT-36356) Specify which element Iterable.distinctBy(selector) retains
- [`KT-38060`](https://youtrack.jetbrains.com/issue/KT-38060) runningFold and runningReduce instead of scanReduce
- [`KT-38566`](https://youtrack.jetbrains.com/issue/KT-38566) Kotlin/JS IR: kx.serialization & ktor+JsonFeature: SerializationException: Can't locate argument-less serializer for class

### Reflection

- [`KT-29969`](https://youtrack.jetbrains.com/issue/KT-29969) Support optional vararg parameter in `KCallable.callBy`
- [`KT-37707`](https://youtrack.jetbrains.com/issue/KT-37707) "IllegalStateException: superInterface.classLoader must not be null" on class, which implements "AutoCloaseable" interface, "isAccessible" property changing

### Tools. CLI

- [`KT-37090`](https://youtrack.jetbrains.com/issue/KT-37090) file does not exist: `C:\Users\NK\DOWNLO~1\kotlin-compiler-1.3.61\kotlinc\bin\..\lib\kotlin-compiler.jar" from standalone compiler on Windows`

### Tools. Gradle

- [`KT-35447`](https://youtrack.jetbrains.com/issue/KT-35447) Warnings should be piped to stderr when using allWarningsAsErrors = true
- [`KT-35942`](https://youtrack.jetbrains.com/issue/KT-35942) User test Gradle source set code cannot reach out internal members from the production code
- [`KT-36019`](https://youtrack.jetbrains.com/issue/KT-36019) Implement Gradle DSL for explicit API mode

### Tools. Gradle. JS

#### New Features

- [`KT-32017`](https://youtrack.jetbrains.com/issue/KT-32017) Kotlin/JS in MPP: support changing the generated JS file name in Gradle DSL
- [`KT-32721`](https://youtrack.jetbrains.com/issue/KT-32721) [Gradle, JS] CSS Support for browser
- [`KT-36843`](https://youtrack.jetbrains.com/issue/KT-36843) [Gradle, JS, IR] Configure JS Compiler Type through DSL
- [`KT-37207`](https://youtrack.jetbrains.com/issue/KT-37207) Allow to use npm dependency from a local directory
- [`KT-38056`](https://youtrack.jetbrains.com/issue/KT-38056) [Gradle, JS] Group tasks by browser and node

#### Fixes

- [`KT-32466`](https://youtrack.jetbrains.com/issue/KT-32466) kotlinNpmResolve fails in the case of composite build
- [`KT-34468`](https://youtrack.jetbrains.com/issue/KT-34468) Consider custom versions while parsing yarn.lock
- [`KT-36489`](https://youtrack.jetbrains.com/issue/KT-36489) [Gradle, JS, IR]: Correct naming for both compilers
- [`KT-36784`](https://youtrack.jetbrains.com/issue/KT-36784) Kotlin. JS. MPP – Cannot find project :js when using Gradle composite builds
- [`KT-36864`](https://youtrack.jetbrains.com/issue/KT-36864) KJS. Composite build require JS plugin in root project
- [`KT-37240`](https://youtrack.jetbrains.com/issue/KT-37240) KJS. Nondeterministic execution order for webpack scripts (from folder 'webpack.config.d')
- [`KT-37582`](https://youtrack.jetbrains.com/issue/KT-37582) Kotlin/JS: KotlinWebpack non-nullable properties are shown as nullable in Gradle configuration
- [`KT-37587`](https://youtrack.jetbrains.com/issue/KT-37587) KJS. Karma ignore dynamically created webpack patches
- [`KT-37635`](https://youtrack.jetbrains.com/issue/KT-37635) [Gradle, JS] Webpack devtool provide enum for only 2 variants
- [`KT-37636`](https://youtrack.jetbrains.com/issue/KT-37636) [Gradle, JS] Extract package.json from klib
- [`KT-37762`](https://youtrack.jetbrains.com/issue/KT-37762) [Gradle, JS] Actualize Node and Yarn versions in 1.4
- [`KT-37988`](https://youtrack.jetbrains.com/issue/KT-37988) [Gradle, JS] Bump NPM versions on 1.4-M2
- [`KT-38051`](https://youtrack.jetbrains.com/issue/KT-38051) [Gradle, JS] browserDistribution doesn't provide outputs
- [`KT-38519`](https://youtrack.jetbrains.com/issue/KT-38519) JS Compiler per project without additional import

### Tools. Gradle. Multiplatform

- [`KT-36674`](https://youtrack.jetbrains.com/issue/KT-36674) `allMetadataJar` task fails if there is an empty intermediate source set in a multiplatform project with native targets
- [`KT-38746`](https://youtrack.jetbrains.com/issue/KT-38746) In HMPP, compilation of a shared-native source set could be mistakenly disabled
- [`KT-39094`](https://youtrack.jetbrains.com/issue/KT-39094) Provide a way to pass custom JVM args to commonizer from Gradle

### Tools. Gradle. Native

- [`KT-25887`](https://youtrack.jetbrains.com/issue/KT-25887) Kotlin Native gradle build fail with `endorsed is not supported. Endorsed standards and standalone APIs` on jdk > 8 & CLion
- [`KT-36721`](https://youtrack.jetbrains.com/issue/KT-36721) Deduce a fully qualified unique_name in klib manifest from something like group name
- [`KT-37730`](https://youtrack.jetbrains.com/issue/KT-37730) Native part of multiplatform build fails with "unresolved reference" errors if there is a local and external module with the same name
- [`KT-38174`](https://youtrack.jetbrains.com/issue/KT-38174) Kotlin/Native: Disable platform libraries generation at the user side by default

### Tools. J2K

#### Fixes

- [`KT-34965`](https://youtrack.jetbrains.com/issue/KT-34965) Convert function reference copied from function call
- [`KT-35593`](https://youtrack.jetbrains.com/issue/KT-35593) New J2K: method's names don't change between functions declared in Number.java and Number.kt
- [`KT-35897`](https://youtrack.jetbrains.com/issue/KT-35897) J2K converts private enum constructors to internal constructors and produces NON_PRIVATE_CONSTRUCTOR_IN_ENUM error
- [`KT-36088`](https://youtrack.jetbrains.com/issue/KT-36088) J2K:  StackOverflowError when trying to convert Java class with recursive type bound
- [`KT-36149`](https://youtrack.jetbrains.com/issue/KT-36149) J2K: PsiInvalidElementAccessException: Element class com.intellij.psi.impl.source.tree.CompositeElement of type DOT_QUALIFIED_EXPRESSION
- [`KT-36152`](https://youtrack.jetbrains.com/issue/KT-36152) J2K: RuntimeException: Couldn't get containingKtFile for ktElement
- [`KT-36159`](https://youtrack.jetbrains.com/issue/KT-36159) J2K: ClassCastException if constructor contains a super() call and class extends from Kotlin class
- [`KT-36190`](https://youtrack.jetbrains.com/issue/KT-36190) J2K: Wrong property name generation when getter for non-boolean value starts with 'is'
- [`KT-36891`](https://youtrack.jetbrains.com/issue/KT-36891) j2k: Fail with java.lang.NoClassDefFoundError when converting array
- [`KT-37052`](https://youtrack.jetbrains.com/issue/KT-37052) new J2K: Java private function is converted to `private open` top-level function
- [`KT-37620`](https://youtrack.jetbrains.com/issue/KT-37620) new J2K: IndexOutOfBoundsException (DefaultArgumentsConversion.applyToElement) with overloaded function with vararg parameter
- [`KT-37919`](https://youtrack.jetbrains.com/issue/KT-37919) new J2K: Redundant line feeds when converting function

### Tools. JPS

- [`KT-37159`](https://youtrack.jetbrains.com/issue/KT-37159) A Typo (forgotten space) in build output in Circular dependencies warning description

### Tools. Scripts

- [`KT-30086`](https://youtrack.jetbrains.com/issue/KT-30086) ThreadDeath when running kotlin scripts using jsr223
- [`KT-37558`](https://youtrack.jetbrains.com/issue/KT-37558) Scripts: implicit receivers don't work correctly when using CompiledScriptJarsCache
- [`KT-37823`](https://youtrack.jetbrains.com/issue/KT-37823) Consecutive invocations of main.kts throw a KotlinReflectionNotSupportedError


## 1.4-M1

### Compiler

#### New Features

- [`KT-4240`](https://youtrack.jetbrains.com/issue/KT-4240) Type inference possible improvements: analyze lambda with expected type from the outer call
- [`KT-7304`](https://youtrack.jetbrains.com/issue/KT-7304) Smart-casts and generic calls with multiple bounds on type parameters
- [`KT-7745`](https://youtrack.jetbrains.com/issue/KT-7745) Support named arguments in their own position even if the result appears as mixed
- [`KT-7770`](https://youtrack.jetbrains.com/issue/KT-7770) SAM for Kotlin classes
- [`KT-8834`](https://youtrack.jetbrains.com/issue/KT-8834) Support function references with default values as other function types
- [`KT-10930`](https://youtrack.jetbrains.com/issue/KT-10930) Expected type isn't taken into account for delegated properties
- [`KT-11723`](https://youtrack.jetbrains.com/issue/KT-11723) Support coercion to Unit in callable reference resolution
- [`KT-14416`](https://youtrack.jetbrains.com/issue/KT-14416) Support of @PolymorphicSignature in Kotlin compiler
- [`KT-16873`](https://youtrack.jetbrains.com/issue/KT-16873) Support COERSION_TO_UNIT for suspend lambdas
- [`KT-17643`](https://youtrack.jetbrains.com/issue/KT-17643) Inferring type of Pair based on known Map type
- [`KT-19869`](https://youtrack.jetbrains.com/issue/KT-19869) Support function references to functions with vararg if expected type ends with repeated vararg element type
- [`KT-21178`](https://youtrack.jetbrains.com/issue/KT-21178) Prohibit access of protected members inside public inline members
- [`KT-21368`](https://youtrack.jetbrains.com/issue/KT-21368) Improve type inference
- [`KT-25866`](https://youtrack.jetbrains.com/issue/KT-25866) Iterable.forEach does not accept functions that return non-Unit values
- [`KT-26165`](https://youtrack.jetbrains.com/issue/KT-26165) Support VarHandle in JVM codegen
- [`KT-27582`](https://youtrack.jetbrains.com/issue/KT-27582) Allow contracts on final non-override members
- [`KT-28298`](https://youtrack.jetbrains.com/issue/KT-28298) Allow references to generic (reified) type parameters in contracts
- [`KT-31230`](https://youtrack.jetbrains.com/issue/KT-31230) Refine rules for allowed Array-based class literals on different platforms: allow `Array::class` everywhere, disallow `Array<...>::class` on non-JVM
- [`KT-31244`](https://youtrack.jetbrains.com/issue/KT-31244) Choose Java field during overload resolution with a pure Kotlin property
- [`KT-31734`](https://youtrack.jetbrains.com/issue/KT-31734) Empty parameter list required on Annotations of function types
- [`KT-33990`](https://youtrack.jetbrains.com/issue/KT-33990) Type argument isn't checked during resolution part
- [`KT-33413`](https://youtrack.jetbrains.com/issue/KT-33413) Allow 'break' and 'continue' in 'when' statement to point to innermost surrounding loop
- [`KT-34743`](https://youtrack.jetbrains.com/issue/KT-34743) Support trailing comma in the compiler
- [`KT-34847`](https://youtrack.jetbrains.com/issue/KT-34847) Lift restrictions from `kotlin.Result`

#### Fixes

- [`KT-2869`](https://youtrack.jetbrains.com/issue/KT-2869) Incorrect resolve with 'unsafe call error' and generics
- [`KT-3630`](https://youtrack.jetbrains.com/issue/KT-3630) Extension property (generic function type) does not work
- [`KT-3668`](https://youtrack.jetbrains.com/issue/KT-3668) Infer type parameters for extension 'get' in delegated property
- [`KT-3850`](https://youtrack.jetbrains.com/issue/KT-3850) Receiver check fails when type parameter has another parameter as a bound
- [`KT-3884`](https://youtrack.jetbrains.com/issue/KT-3884) Generic candidate with contradiction is preferred over matching global function
- [`KT-4625`](https://youtrack.jetbrains.com/issue/KT-4625) Poor error highlighting when assigning not matched type to index operator
- [`KT-5449`](https://youtrack.jetbrains.com/issue/KT-5449) Wrong resolve when functions differ only in the nullability of generic type
- [`KT-5606`](https://youtrack.jetbrains.com/issue/KT-5606) "Type mismatch" in Java constructor call with SAM lambda and `vararg` parameter
- [`KT-6005`](https://youtrack.jetbrains.com/issue/KT-6005) Type inference problem in sam constructors
- [`KT-6591`](https://youtrack.jetbrains.com/issue/KT-6591) Overloaded generic extension function call with null argument resolved incorrectly
- [`KT-6812`](https://youtrack.jetbrains.com/issue/KT-6812) Type inference fails when passing a null instead of a generic type
- [`KT-7298`](https://youtrack.jetbrains.com/issue/KT-7298) Bogus type inference error in generic method call translated from Java
- [`KT-7301`](https://youtrack.jetbrains.com/issue/KT-7301) Type inference error in Kotlin code translated from Java
- [`KT-7333`](https://youtrack.jetbrains.com/issue/KT-7333) Type inference fails with star-projections in code translated from Java
- [`KT-7363`](https://youtrack.jetbrains.com/issue/KT-7363) Kotlin code with star-projections translated from Java does not typecheck
- [`KT-7378`](https://youtrack.jetbrains.com/issue/KT-7378) 3-dimension array type inference fail
- [`KT-7410`](https://youtrack.jetbrains.com/issue/KT-7410) Call resolution error appears only after adding non-applicable overload
- [`KT-7420`](https://youtrack.jetbrains.com/issue/KT-7420) Type inference sometimes infers less specific type than in Java
- [`KT-7758`](https://youtrack.jetbrains.com/issue/KT-7758) Type of lambda can't be infered 
- [`KT-8218`](https://youtrack.jetbrains.com/issue/KT-8218) Wrong 'equals' for generic types with platform type and error type
- [`KT-8265`](https://youtrack.jetbrains.com/issue/KT-8265) Non-typesafe program is compiled without errors
- [`KT-8637`](https://youtrack.jetbrains.com/issue/KT-8637) Useless diagnostics for type parameters with unsafe nullability 
- [`KT-8966`](https://youtrack.jetbrains.com/issue/KT-8966) Smart casts don't work with implicit receiver and extension on type parameter with bounds
- [`KT-10265`](https://youtrack.jetbrains.com/issue/KT-10265) Type inference problem when using sealed class and interfaces
- [`KT-10364`](https://youtrack.jetbrains.com/issue/KT-10364) Call completeCall on variable before invoke resolution
- [`KT-10612`](https://youtrack.jetbrains.com/issue/KT-10612) java.util.Comparator.comparing type inference
- [`KT-10628`](https://youtrack.jetbrains.com/issue/KT-10628) Wrong type mismatch with star projection of inner class inside use-site projected type 
- [`KT-10662`](https://youtrack.jetbrains.com/issue/KT-10662) Smartcast with not-null assertion
- [`KT-10681`](https://youtrack.jetbrains.com/issue/KT-10681) Explicit type arguments not taken into account when determining applicable overloads of a generic function
- [`KT-10755`](https://youtrack.jetbrains.com/issue/KT-10755) Not "least" common super-type is selected for nested 'if' result in presence of multiple inheritance 
- [`KT-10929`](https://youtrack.jetbrains.com/issue/KT-10929) Type inference based on receiver type doesn't work for delegated properties in some cases
- [`KT-10962`](https://youtrack.jetbrains.com/issue/KT-10962) Wrong resolution when argument has unstable DataFlowValue
- [`KT-11108`](https://youtrack.jetbrains.com/issue/KT-11108) RxJava failed platform type inference
- [`KT-11137`](https://youtrack.jetbrains.com/issue/KT-11137) Java synthetic property does not function for a type with projection
- [`KT-11144`](https://youtrack.jetbrains.com/issue/KT-11144) UninferredParameterTypeConstructor exception during build 
- [`KT-11184`](https://youtrack.jetbrains.com/issue/KT-11184) Type inference failed for combination of safe-call, elvis, HashSet and emptySet 
- [`KT-11218`](https://youtrack.jetbrains.com/issue/KT-11218) Type inference incorrectly infers nullable type for type parameter
- [`KT-11323`](https://youtrack.jetbrains.com/issue/KT-11323) Type inference failed in call with lambda returning emptyList
- [`KT-11331`](https://youtrack.jetbrains.com/issue/KT-11331) Unexpected "Type inference failed" in SAM-conversion to projected type
- [`KT-11444`](https://youtrack.jetbrains.com/issue/KT-11444) Type inference fails
- [`KT-11664`](https://youtrack.jetbrains.com/issue/KT-11664) Disfunctional inference with nullable type parameters
- [`KT-11894`](https://youtrack.jetbrains.com/issue/KT-11894) Type substitution bug related platform types
- [`KT-11897`](https://youtrack.jetbrains.com/issue/KT-11897) No error REIFIED_TYPE_FORBIDDEN_SUBSTITUTION on captured type
- [`KT-11898`](https://youtrack.jetbrains.com/issue/KT-11898) Type inference error related to captured types
- [`KT-12036`](https://youtrack.jetbrains.com/issue/KT-12036) Type inference failed
- [`KT-12038`](https://youtrack.jetbrains.com/issue/KT-12038) non-null checks and inference
- [`KT-12190`](https://youtrack.jetbrains.com/issue/KT-12190) Type inference for TreeMap type parameters from expected type doesn't work when passing comparator.
- [`KT-12684`](https://youtrack.jetbrains.com/issue/KT-12684) A problem with reified type-parameters and smart-casts
- [`KT-12833`](https://youtrack.jetbrains.com/issue/KT-12833) 'it' does not work in typed containers of lambdas
- [`KT-13002`](https://youtrack.jetbrains.com/issue/KT-13002) "Error type encountered: UninferredParameterTypeConstructor" with elvis and when
- [`KT-13028`](https://youtrack.jetbrains.com/issue/KT-13028) cast with star on on type with contravariant generic parameter makes the compiler crash
- [`KT-13339`](https://youtrack.jetbrains.com/issue/KT-13339) Type inference failed for synthetic Java property call on implicit smart cast receiver
- [`KT-13398`](https://youtrack.jetbrains.com/issue/KT-13398) "Type T is not a subtype of Any"
- [`KT-13683`](https://youtrack.jetbrains.com/issue/KT-13683) Type inference incorporation error when passed null into not-null parameter
- [`KT-13721`](https://youtrack.jetbrains.com/issue/KT-13721) Type inference fails when function arguments are involved
- [`KT-13725`](https://youtrack.jetbrains.com/issue/KT-13725) Type inference fails to infer type with array as a generic argument
- [`KT-13800`](https://youtrack.jetbrains.com/issue/KT-13800) Type inference fails when null passed as argument (related to common system)
- [`KT-13934`](https://youtrack.jetbrains.com/issue/KT-13934) Callable reference to companion object member via class name is not resolved
- [`KT-13964`](https://youtrack.jetbrains.com/issue/KT-13964) Unknown descriptor on compiling invoke operator call with generic parameter
- [`KT-13965`](https://youtrack.jetbrains.com/issue/KT-13965) Invoke operator called on extension property of generic type has incorrect parameter type
- [`KT-13992`](https://youtrack.jetbrains.com/issue/KT-13992) Incorrect TYPE_INFERENCE_UPPER_BOUND_VIOLATED
- [`KT-14101`](https://youtrack.jetbrains.com/issue/KT-14101) Type inference failed on null
- [`KT-14174`](https://youtrack.jetbrains.com/issue/KT-14174) Compiler can't infer type when it should be able to
- [`KT-14351`](https://youtrack.jetbrains.com/issue/KT-14351) Internal error with uninferred types for compiling complicated when expression
- [`KT-14460`](https://youtrack.jetbrains.com/issue/KT-14460) Smartcast isn't considered as necessary in the last expression of lambda
- [`KT-14463`](https://youtrack.jetbrains.com/issue/KT-14463) Missing MEMBER_PROJECTED_OUT error after smartcast with invoke
- [`KT-14499`](https://youtrack.jetbrains.com/issue/KT-14499) Type inference fails even if we specify `T` explicitly
- [`KT-14725`](https://youtrack.jetbrains.com/issue/KT-14725) kotlin generics makes agera's compiled repositories unusable
- [`KT-14803`](https://youtrack.jetbrains.com/issue/KT-14803) Weird smart cast absence in lazy delegate
- [`KT-14972`](https://youtrack.jetbrains.com/issue/KT-14972) Type inference failed: wrong common supertype for types with several subtypes
- [`KT-14980`](https://youtrack.jetbrains.com/issue/KT-14980) Type inference for nullable type in if statement
- [`KT-15155`](https://youtrack.jetbrains.com/issue/KT-15155) False "No cast needed" warning for conversion to star-projected type
- [`KT-15185`](https://youtrack.jetbrains.com/issue/KT-15185) Inference for coroutines not work in case where we have suspend function with new coroutine inside
- [`KT-15263`](https://youtrack.jetbrains.com/issue/KT-15263) Kotlin can't infer the type of a multiple bounded method
- [`KT-15389`](https://youtrack.jetbrains.com/issue/KT-15389) Type inference for coroutines in 1.1-M04
- [`KT-15394`](https://youtrack.jetbrains.com/issue/KT-15394) Support coercion to Unit for last statement for suspend lambda
- [`KT-15396`](https://youtrack.jetbrains.com/issue/KT-15396) Type inference for last statement in coroutine
- [`KT-15488`](https://youtrack.jetbrains.com/issue/KT-15488) Type inference not working on generic function returning generic type in lambda result
- [`KT-15648`](https://youtrack.jetbrains.com/issue/KT-15648) Better use of overladed functions with nullables
- [`KT-15922`](https://youtrack.jetbrains.com/issue/KT-15922) TYPE_INFERENCE_CONFLICTING_SUBSTITUTION for function reference
- [`KT-15923`](https://youtrack.jetbrains.com/issue/KT-15923) Internal error: empty intersection for types
- [`KT-16247`](https://youtrack.jetbrains.com/issue/KT-16247) Overload resolution ambiguity with intersection types and method references
- [`KT-16249`](https://youtrack.jetbrains.com/issue/KT-16249) Can't call generic method with overloaded method reference when non-generic overload exists
- [`KT-16421`](https://youtrack.jetbrains.com/issue/KT-16421) Remove @ParameterName annotation from diagnostic messages
- [`KT-16480`](https://youtrack.jetbrains.com/issue/KT-16480) Wrong "Type mismatch" for variable as function call
- [`KT-16591`](https://youtrack.jetbrains.com/issue/KT-16591) Type inferencing doesn't consider common base class of T of multiple Foo<T> function parameters
- [`KT-16678`](https://youtrack.jetbrains.com/issue/KT-16678) Overload resolution ambiguity on println()
- [`KT-16844`](https://youtrack.jetbrains.com/issue/KT-16844) Recursive dependency] (DeferredType) error on code generation.
- [`KT-16869`](https://youtrack.jetbrains.com/issue/KT-16869) Cannot infer type parameter S in fun <S, T : S?> f(x: S, g: (S) -> T): T
- [`KT-17018`](https://youtrack.jetbrains.com/issue/KT-17018) "Rewrite at slice LEXICAL_SCOPE" for 'when' with function reference inside lambda
- [`KT-17048`](https://youtrack.jetbrains.com/issue/KT-17048) Compilation exception: error type encountered in some combination of when/elvis with multiple inheritance
- [`KT-17340`](https://youtrack.jetbrains.com/issue/KT-17340) Type inference failed on overloaded method reference with expected KFunction
- [`KT-17386`](https://youtrack.jetbrains.com/issue/KT-17386) Smart cast on LHS of callable reference doesn't work if expected type is nullable
- [`KT-17487`](https://youtrack.jetbrains.com/issue/KT-17487) ReenteringLazyValueComputationException for interface with a subclass that has a property of interface type
- [`KT-17552`](https://youtrack.jetbrains.com/issue/KT-17552) Call completed not running for elvis as last expression in lambda
- [`KT-17799`](https://youtrack.jetbrains.com/issue/KT-17799) Smart cast doesn't work for callable reference (colon-colon operator)
- [`KT-17968`](https://youtrack.jetbrains.com/issue/KT-17968) More type inference problems with Streams.collect
- [`KT-17995`](https://youtrack.jetbrains.com/issue/KT-17995) No type mismatch with empty `when` expression inside lambda
- [`KT-18002`](https://youtrack.jetbrains.com/issue/KT-18002) Issue with star projection for generic type with recursive upper bound
- [`KT-18014`](https://youtrack.jetbrains.com/issue/KT-18014) Cannot use Comparator.comparing
- [`KT-18080`](https://youtrack.jetbrains.com/issue/KT-18080) Type inference failed for generic method reference argument
- [`KT-18192`](https://youtrack.jetbrains.com/issue/KT-18192) Type inference fails for some nested generic type structures
- [`KT-18207`](https://youtrack.jetbrains.com/issue/KT-18207) Unexpected attempt to smart cast causes compile error
- [`KT-18379`](https://youtrack.jetbrains.com/issue/KT-18379) Type inference failed although explicit specified
- [`KT-18401`](https://youtrack.jetbrains.com/issue/KT-18401) Type mismatch when inferring out type parameter (related to callable reference)
- [`KT-18481`](https://youtrack.jetbrains.com/issue/KT-18481) ReenteringLazyValueComputationException for recursive const declaration without explicit type
- [`KT-18541`](https://youtrack.jetbrains.com/issue/KT-18541) Prohibit "tailrec" modifier on open functions
- [`KT-18790`](https://youtrack.jetbrains.com/issue/KT-18790) function take the parameterized type with multi-bounds can't working 
- [`KT-19139`](https://youtrack.jetbrains.com/issue/KT-19139) Kotlin build error in Android Studio on << intent.putExtra(“string”, it.getString(“string”) >> inside "else if" block
- [`KT-19751`](https://youtrack.jetbrains.com/issue/KT-19751) Nested conditionals break type inference when multiple types are possible for the expression
- [`KT-19880`](https://youtrack.jetbrains.com/issue/KT-19880) An overload with nullable parameter is not resolved due to a smart cast attempt after assignment
- [`KT-19884`](https://youtrack.jetbrains.com/issue/KT-19884) type inference with type parameter
- [`KT-20226`](https://youtrack.jetbrains.com/issue/KT-20226) Return type 'Any' inferred for lambda with early return with integer literal in one of possible return values
- [`KT-20656`](https://youtrack.jetbrains.com/issue/KT-20656) Callable reference breaks smart cast for next statement
- [`KT-20734`](https://youtrack.jetbrains.com/issue/KT-20734) Invalid "Smart-cast impossible" when there are applicable extension and semi-applicable member
- [`KT-20817`](https://youtrack.jetbrains.com/issue/KT-20817) Coroutine builder type inference does not take smart casts into account (confusing)
- [`KT-21060`](https://youtrack.jetbrains.com/issue/KT-21060) ReenteringLazyValueComputationException during type inference
- [`KT-21396`](https://youtrack.jetbrains.com/issue/KT-21396) if-else with a branch of type Nothing fails to infer receiver type
- [`KT-21463`](https://youtrack.jetbrains.com/issue/KT-21463) Compiler doesn't take into accout a type parameter upper bound if a corresponding type argument is in projection
- [`KT-21607`](https://youtrack.jetbrains.com/issue/KT-21607) Type inference fails with intermediate function
- [`KT-21694`](https://youtrack.jetbrains.com/issue/KT-21694) Type inference failed for ObservableList
- [`KT-22012`](https://youtrack.jetbrains.com/issue/KT-22012) Kotlin type deduction does not handle Java's <? super T> constructs
- [`KT-22022`](https://youtrack.jetbrains.com/issue/KT-22022) ReenteringLazyValueComputationException when having cyclic references to static variables
- [`KT-22032`](https://youtrack.jetbrains.com/issue/KT-22032) Multiple type parameter bounds & smart casts
- [`KT-22043`](https://youtrack.jetbrains.com/issue/KT-22043) Report an error when comparing enum (==/!=/when) to any other incompatible type since 1.4
- [`KT-22070`](https://youtrack.jetbrains.com/issue/KT-22070) Type inference issue with platform types and SAM conversion
- [`KT-22474`](https://youtrack.jetbrains.com/issue/KT-22474) Type safety problem because of incorrect subtyping for intersection types
- [`KT-22636`](https://youtrack.jetbrains.com/issue/KT-22636) Anonymous function can be passed as a suspending one, failing at runtime
- [`KT-22723`](https://youtrack.jetbrains.com/issue/KT-22723) Inconsistent behavior of floating-point number comparisons
- [`KT-22775`](https://youtrack.jetbrains.com/issue/KT-22775) Type inference failed when yielding smartcasted not null value from `sequence`
- [`KT-22885`](https://youtrack.jetbrains.com/issue/KT-22885) Broken type safety with function variables caused by wrong subtyping check that includes intersection types
- [`KT-23141`](https://youtrack.jetbrains.com/issue/KT-23141) Cannot resolve between two functions when only one of them accepts nullable parameter
- [`KT-23156`](https://youtrack.jetbrains.com/issue/KT-23156) IDEA asking me to remove uninferable explicit type signature
- [`KT-23391`](https://youtrack.jetbrains.com/issue/KT-23391) Bogus type inference error with smart cast, synthetic property and star projection
- [`KT-23475`](https://youtrack.jetbrains.com/issue/KT-23475) Implicit invoke on property with generic functional return type resolves incorrectly
- [`KT-23482`](https://youtrack.jetbrains.com/issue/KT-23482) Incorrect frontend behaviour for not inferred type for generic property with function type as result
- [`KT-23677`](https://youtrack.jetbrains.com/issue/KT-23677) Incorrect error diagnostic for return types that coerced to 'Unit' inside lambda
- [`KT-23748`](https://youtrack.jetbrains.com/issue/KT-23748) Erroneous type mismatch when call with @Exact annotation depends on non-fixed type variable
- [`KT-23755`](https://youtrack.jetbrains.com/issue/KT-23755) Nested lambdas with nested types can cause false USELESS_CAST warning
- [`KT-23791`](https://youtrack.jetbrains.com/issue/KT-23791) Explicit type argument leads to an error, while candidate is picked correctly without it
- [`KT-23992`](https://youtrack.jetbrains.com/issue/KT-23992) Target prefixes for annotations on supertype list elements are not checked
- [`KT-24143`](https://youtrack.jetbrains.com/issue/KT-24143) Type-checking error for generic functions
- [`KT-24217`](https://youtrack.jetbrains.com/issue/KT-24217) Type inference for generic functions reference problem.
- [`KT-24237`](https://youtrack.jetbrains.com/issue/KT-24237) Uninferred type parameter on variable with multiple smart casts in elvis
- [`KT-24317`](https://youtrack.jetbrains.com/issue/KT-24317) Unnecessary non-null assertion inspection shown
- [`KT-24341`](https://youtrack.jetbrains.com/issue/KT-24341) Compiler exception instead of error about "upper bound violated"
- [`KT-24355`](https://youtrack.jetbrains.com/issue/KT-24355) Overload resolution ambiguity due to unstable smartcast
- [`KT-24458`](https://youtrack.jetbrains.com/issue/KT-24458) Cannot solve “Conditional branch result is implicitly cast to Any” with List
- [`KT-24493`](https://youtrack.jetbrains.com/issue/KT-24493) Incorrect error about Array<Nothing> unsupported
- [`KT-24886`](https://youtrack.jetbrains.com/issue/KT-24886) Type inference failure in an if-else_if-else
- [`KT-24918`](https://youtrack.jetbrains.com/issue/KT-24918) type inference not good enough for return type with involved if statement
- [`KT-24920`](https://youtrack.jetbrains.com/issue/KT-24920) Type inference failure when using RxJava compose
- [`KT-24993`](https://youtrack.jetbrains.com/issue/KT-24993) Inference for buildSequence/yield doesn't work for labeled lambdas
- [`KT-25063`](https://youtrack.jetbrains.com/issue/KT-25063) List of Arrays - wrong type inferred if nullable involved
- [`KT-25268`](https://youtrack.jetbrains.com/issue/KT-25268) Incorrect type inference (least upper bound of the types) in exhaustive when for Number
- [`KT-25294`](https://youtrack.jetbrains.com/issue/KT-25294) Reactors Mono map function with Kotlin
- [`KT-25306`](https://youtrack.jetbrains.com/issue/KT-25306) Make f(a = arrayOf(x)) equivalent to f(a = *arrayOf(x))
- [`KT-25342`](https://youtrack.jetbrains.com/issue/KT-25342) Type inference: lazy with generic fails to infer
- [`KT-25434`](https://youtrack.jetbrains.com/issue/KT-25434) Too eager smartcast cause type mismatch
- [`KT-25585`](https://youtrack.jetbrains.com/issue/KT-25585) "Rewrite at slice LEXICAL_SCOPE" for `if` expression with callable reference inside lambda
- [`KT-25656`](https://youtrack.jetbrains.com/issue/KT-25656) Short-hand array literal notation type inference fails in nested annotations
- [`KT-25675`](https://youtrack.jetbrains.com/issue/KT-25675) `return when` leads to compiler error
- [`KT-25721`](https://youtrack.jetbrains.com/issue/KT-25721) Type inference does not work in nested try catch
- [`KT-25827`](https://youtrack.jetbrains.com/issue/KT-25827) NullPointerException in setResultingSubstitutor with a generic base class
- [`KT-25841`](https://youtrack.jetbrains.com/issue/KT-25841) Collection type is inferred as Collection<Any> if the values returned from `map` function have an intersection common type
- [`KT-25942`](https://youtrack.jetbrains.com/issue/KT-25942) Pass a parameter to generic function with several upper bounds
- [`KT-26157`](https://youtrack.jetbrains.com/issue/KT-26157) Failed type inference for `Delegates.observable` parameter with a nullable property
- [`KT-26264`](https://youtrack.jetbrains.com/issue/KT-26264) No smart cast on implicit receiver extension function call
- [`KT-26638`](https://youtrack.jetbrains.com/issue/KT-26638) Check for repeatablilty of annotations doesn't take into account annotations with use-site target
- [`KT-26698`](https://youtrack.jetbrains.com/issue/KT-26698) OnlyInputTypes doesn't work in presence of upper bound constraint
- [`KT-26704`](https://youtrack.jetbrains.com/issue/KT-26704) Correct variable-as-function call fails to compile in case of function type dependent on variable type
- [`KT-27440`](https://youtrack.jetbrains.com/issue/KT-27440) Infer lambda parameter type before lambda analysis in common system
- [`KT-27464`](https://youtrack.jetbrains.com/issue/KT-27464) False negative type mismatch when a non-null assertion is used on a top-level `var` mutable variable
- [`KT-27606`](https://youtrack.jetbrains.com/issue/KT-27606) Incorrect type inference when common supertype of enum classes is involved
- [`KT-27722`](https://youtrack.jetbrains.com/issue/KT-27722) mapNotNull on List<Result<T>> fails if T is not subtype of Any
- [`KT-27781`](https://youtrack.jetbrains.com/issue/KT-27781) ReenteringLazyValueComputationException for anonymous object property referring to itself in overridden method
- [`KT-27799`](https://youtrack.jetbrains.com/issue/KT-27799) Prohibit references to reified type parameters in annotation arguments in local classes / anonymous objects
- [`KT-28083`](https://youtrack.jetbrains.com/issue/KT-28083) Nothing-call smart cast of a variable that a lambda returns does not affect the lambda's return type
- [`KT-28111`](https://youtrack.jetbrains.com/issue/KT-28111) Type inference fails for return type of lambda with constrained generic
- [`KT-28242`](https://youtrack.jetbrains.com/issue/KT-28242) Not-null assertion operator doesn't affect smartcast types
- [`KT-28264`](https://youtrack.jetbrains.com/issue/KT-28264) Resulting type of a safe call should produce type that is intersected with Any
- [`KT-28305`](https://youtrack.jetbrains.com/issue/KT-28305) "Error type encountered" with elvis operator, type argument and explicit `Any` type
- [`KT-28319`](https://youtrack.jetbrains.com/issue/KT-28319) "resultingDescriptor shouldn't be null" for a star projection base class
- [`KT-28334`](https://youtrack.jetbrains.com/issue/KT-28334) Smartcast doesn't work if original type is type with star projection and there was already another smartcast
- [`KT-28370`](https://youtrack.jetbrains.com/issue/KT-28370) Var not-null smartcasts are wrong if reassignments are used inside catch section (in try-catch) or try section (in try-finally)
- [`KT-28424`](https://youtrack.jetbrains.com/issue/KT-28424) Type annotations are not analyzed properly in several cases
- [`KT-28584`](https://youtrack.jetbrains.com/issue/KT-28584) Complex condition fails smart cast
- [`KT-28614`](https://youtrack.jetbrains.com/issue/KT-28614) "Error type encountered: UninferredParameterTypeConstructor"
- [`KT-28726`](https://youtrack.jetbrains.com/issue/KT-28726) Recursion in type inference causes ReenteringLazyValueComputationException
- [`KT-28837`](https://youtrack.jetbrains.com/issue/KT-28837) SAM conversion doesn't work for arguments of members imported from object
- [`KT-28873`](https://youtrack.jetbrains.com/issue/KT-28873) Function reference resolution ambiguity is not reported
- [`KT-28999`](https://youtrack.jetbrains.com/issue/KT-28999) Prohibit type parameters for anonymous objects
- [`KT-28951`](https://youtrack.jetbrains.com/issue/KT-28951) "Error type encountered" with elvis operator, type argument and explicit `Any` type
- [`KT-29014`](https://youtrack.jetbrains.com/issue/KT-29014) Unclear diagnostic for conditional branches coercion with multiple root interfaces and no common superclass
- [`KT-29079`](https://youtrack.jetbrains.com/issue/KT-29079) `ByteArray.let(::String)` can not compile as the callable reference is resolved before the outer call
- [`KT-29258`](https://youtrack.jetbrains.com/issue/KT-29258) Incorrect return type is used for analysis of an extension lambda (if its type is used as a generic parameter)
- [`KT-29330`](https://youtrack.jetbrains.com/issue/KT-29330) NI: Multiple duplicate error messages in IDE popup with lambda argument
- [`KT-29402`](https://youtrack.jetbrains.com/issue/KT-29402) Missed INLINE_FROM_HIGHER_PLATFORM diagnostic if inline function called from Derived class
- [`KT-29515`](https://youtrack.jetbrains.com/issue/KT-29515) type inference fails to infer T of KFunction0 for most types
- [`KT-29712`](https://youtrack.jetbrains.com/issue/KT-29712) Incorrect compiler warning, "No cast needed" for recursive type bound
- [`KT-29876`](https://youtrack.jetbrains.com/issue/KT-29876) ReenteringLazyValueComputationException with usage of property inside lambda during assignment to that property
- [`KT-29911`](https://youtrack.jetbrains.com/issue/KT-29911) Not-null smart cast fails inside inline lambda after safe call on generic variable with nullable upper bound
- [`KT-29943`](https://youtrack.jetbrains.com/issue/KT-29943) Callable reference resolution ambiguity between a property and a function is reported incorrectly in function calls expecting KProperty1
- [`KT-29949`](https://youtrack.jetbrains.com/issue/KT-29949) Cannot chose among overload as soon as nullable type is involved
- [`KT-30151`](https://youtrack.jetbrains.com/issue/KT-30151) Any instead of Number is inferred as common super type of Int and Double
- [`KT-30176`](https://youtrack.jetbrains.com/issue/KT-30176) Compiler can't infer correct type argument which blocks overload resolution
- [`KT-30240`](https://youtrack.jetbrains.com/issue/KT-30240) Can't infer intersection type for a type variable with several bounds
- [`KT-30278`](https://youtrack.jetbrains.com/issue/KT-30278) Retain star projections in typeOf
- [`KT-30394`](https://youtrack.jetbrains.com/issue/KT-30394) Different behaviour in type inferences (bug in the old inference) when cast of variable of nullable type parameter to not-null is used
- [`KT-30496`](https://youtrack.jetbrains.com/issue/KT-30496) Wrong infix generic extension function is chosen for `null` receiver
- [`KT-30550`](https://youtrack.jetbrains.com/issue/KT-30550) Suspend modifier on a functional type changes resolution of return type
- [`KT-30892`](https://youtrack.jetbrains.com/issue/KT-30892) IllegalStateException(UninferredParameterTypeConstructor) with return references to local function from if-else expression
- [`KT-30947`](https://youtrack.jetbrains.com/issue/KT-30947) No smart cast on accessing generic class member with upper-bounded type argument
- [`KT-31102`](https://youtrack.jetbrains.com/issue/KT-31102) Type mismatch in mixing lambda and callable reference
- [`KT-31151`](https://youtrack.jetbrains.com/issue/KT-31151) "IllegalStateException: Error type encountered" with elvis, when and inheritance
- [`KT-31219`](https://youtrack.jetbrains.com/issue/KT-31219) Type mismatch for delegated property depending on anonymous object
- [`KT-31290`](https://youtrack.jetbrains.com/issue/KT-31290) overload resolution ambiguity with Iterable<T>.mapTo()
- [`KT-31352`](https://youtrack.jetbrains.com/issue/KT-31352) JvmName can't eliminate platform declaration clash of annotated properties
- [`KT-31532`](https://youtrack.jetbrains.com/issue/KT-31532) Type inference for complex last expression in lambda
- [`KT-31540`](https://youtrack.jetbrains.com/issue/KT-31540) Change initialization order of default values for tail recursive optimized functions
- [`KT-31594`](https://youtrack.jetbrains.com/issue/KT-31594) No SETTER_PROJECTED_OUT diagnostic on synthetic  properties from Java
- [`KT-31630`](https://youtrack.jetbrains.com/issue/KT-31630) TYPE_INFERENCE_PARAMETER_CONSTRAINT_ERROR for generic function with callable reference argument
- [`KT-31654`](https://youtrack.jetbrains.com/issue/KT-31654) False unnecessary non-null assertion (!!) warning inside yield call
- [`KT-31679`](https://youtrack.jetbrains.com/issue/KT-31679) NI: Unresolved reference with delegated property and anonymous object
- [`KT-31739`](https://youtrack.jetbrains.com/issue/KT-31739) Overload resolution ambiguity in generic function call with lambda arguments that take different parameter types
- [`KT-31923`](https://youtrack.jetbrains.com/issue/KT-31923) Outer finally block inserted before return instruction is not excluded from catch interval of inner try (without finally) block
- [`KT-31968`](https://youtrack.jetbrains.com/issue/KT-31968) New inference is using a more common system to infer types from nested elvis call than OI
- [`KT-31978`](https://youtrack.jetbrains.com/issue/KT-31978) NI: changed precedence of elvis operator relative to equality operator
- [`KT-32026`](https://youtrack.jetbrains.com/issue/KT-32026) Infer return type of @PolymorphicSignature method to void if no expected type is given
- [`KT-32087`](https://youtrack.jetbrains.com/issue/KT-32087) "Remove explicit type arguments" inspection when function creates a lambda that calls a function with type argument
- [`KT-32097`](https://youtrack.jetbrains.com/issue/KT-32097) NI: NON_APPLICABLE_CALL_FOR_BUILDER_INFERENCE when using awaitClose in channelFlow builder
- [`KT-32098`](https://youtrack.jetbrains.com/issue/KT-32098) Kotlin 1.3.40 type inference mismatch between the IDE and the compiler
- [`KT-32151`](https://youtrack.jetbrains.com/issue/KT-32151) Return arguments of lambda are resolved in common system while in OI aren't
- [`KT-32165`](https://youtrack.jetbrains.com/issue/KT-32165) Cannot use 'Nothing' as reified type parameter,
- [`KT-32196`](https://youtrack.jetbrains.com/issue/KT-32196) Inconsistency between compiler and inspection with mapNotNull
- [`KT-32203`](https://youtrack.jetbrains.com/issue/KT-32203) NON_APPLICABLE_CALL_FOR_BUILDER_INFERENCE warning false-positive
- [`KT-32249`](https://youtrack.jetbrains.com/issue/KT-32249) New inference breaks generic property delegate resolution
- [`KT-32250`](https://youtrack.jetbrains.com/issue/KT-32250) New Type Inference fails for nullable field
- [`KT-32262`](https://youtrack.jetbrains.com/issue/KT-32262) Type inference failed in presence of @JvmSuppressWildcards
- [`KT-32267`](https://youtrack.jetbrains.com/issue/KT-32267) NI: "Overload resolution ambiguity. All these functions match." with KFunction
- [`KT-32284`](https://youtrack.jetbrains.com/issue/KT-32284) False positive "Redundant lambda arrow" with extension function returning generic with lambda type argument
- [`KT-32290`](https://youtrack.jetbrains.com/issue/KT-32290) New Inference: old inference fails on nullable lambda from if-expression
- [`KT-32306`](https://youtrack.jetbrains.com/issue/KT-32306) False positive `Remove explicit type arguments` when using generic return argument from lambda for delegated property
- [`KT-32358`](https://youtrack.jetbrains.com/issue/KT-32358) NI: Smart cast doesn't work with inline function after elvis operator
- [`KT-32383`](https://youtrack.jetbrains.com/issue/KT-32383) NI: listOf(…) infers to invalid type if different enums implementing the same interface are involved
- [`KT-32397`](https://youtrack.jetbrains.com/issue/KT-32397) OI can't infer types when there are different lower and upper bounds in common system
- [`KT-32399`](https://youtrack.jetbrains.com/issue/KT-32399) OI can't choose candidate with different lower and upper bounds
- [`KT-32425`](https://youtrack.jetbrains.com/issue/KT-32425) No coercion to Unit by a return type of callable expression argument
- [`KT-32431`](https://youtrack.jetbrains.com/issue/KT-32431) Nothing inferred for upper bound in parametric class
- [`KT-32449`](https://youtrack.jetbrains.com/issue/KT-32449) IDE fails to report error:  Expected type mismatch
- [`KT-32462`](https://youtrack.jetbrains.com/issue/KT-32462) NI: "AssertionError: No resolved call" with callable reference
- [`KT-32497`](https://youtrack.jetbrains.com/issue/KT-32497) Compiler Type inference fails when inferring type parameters ("Generics") - IDE inference works
- [`KT-32507`](https://youtrack.jetbrains.com/issue/KT-32507) IntelliJ Kotlin plugin not recognizing smart cast to non-nullable type
- [`KT-32501`](https://youtrack.jetbrains.com/issue/KT-32501) type inference should infer nullable type if non-nullable doesn't work
- [`KT-32527`](https://youtrack.jetbrains.com/issue/KT-32527) Cast required for Sequence.map when mapping between disjoint types
- [`KT-32548`](https://youtrack.jetbrains.com/issue/KT-32548) OVERLOAD_RESOLUTION_AMBIGUITY with platform generic types
- [`KT-32595`](https://youtrack.jetbrains.com/issue/KT-32595) NI: Overload resolution ambiguity for member function with type parameter with upper bounds and lambda parameter
- [`KT-32598`](https://youtrack.jetbrains.com/issue/KT-32598) Kotlin 1.3.41 type inference problem
- [`KT-32654`](https://youtrack.jetbrains.com/issue/KT-32654) Non-applicable call for builder inference with coroutines
- [`KT-32655`](https://youtrack.jetbrains.com/issue/KT-32655) Kotlin compiler and IDEA plugin disagree on type
- [`KT-32686`](https://youtrack.jetbrains.com/issue/KT-32686) New type inference algorithm infers wrong type when return type of `when` expression has a type parameter, and it's not specified in all cases
- [`KT-32788`](https://youtrack.jetbrains.com/issue/KT-32788) No smartcast for an implicit "this" in old inference
- [`KT-32792`](https://youtrack.jetbrains.com/issue/KT-32792) Bug in new type inference algorithm for Android Studio
- [`KT-32800`](https://youtrack.jetbrains.com/issue/KT-32800) Problem with inlined getValue in Delegates, IDEA does not detect problem, but code doesn't compile
- [`KT-32802`](https://youtrack.jetbrains.com/issue/KT-32802) Odd behaviour with smart-casting in exception block
- [`KT-32850`](https://youtrack.jetbrains.com/issue/KT-32850) Invalid suggestion in Kotlin code
- [`KT-32866`](https://youtrack.jetbrains.com/issue/KT-32866) tests in Atrium do not compile with new type inference
- [`KT-33012`](https://youtrack.jetbrains.com/issue/KT-33012) Proper capturing of star projections with recursive types
- [`KT-33102`](https://youtrack.jetbrains.com/issue/KT-33102) Fake overrides aren't created for properties
- [`KT-33152`](https://youtrack.jetbrains.com/issue/KT-33152) Type inference fails when lambda with generic argument type is present
- [`KT-33166`](https://youtrack.jetbrains.com/issue/KT-33166) NI: TYPE_MISMATCH for specific case with `when` expression and one branch throwing exception
- [`KT-33171`](https://youtrack.jetbrains.com/issue/KT-33171) TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER with object convention invoke direct call on property delegation
- [`KT-33240`](https://youtrack.jetbrains.com/issue/KT-33240) Generated overloads for @JvmOverloads on open methods should be final
- [`KT-33545`](https://youtrack.jetbrains.com/issue/KT-33545) NI: Error type encountered: NonFixed: TypeVariable(T) (StubType)
- [`KT-33988`](https://youtrack.jetbrains.com/issue/KT-33988) Low priority candidates doesn't match when others fail
- [`KT-34128`](https://youtrack.jetbrains.com/issue/KT-34128) Internal compiler error ReenteringLazyValueComputationException in the absence of right parenthesis
- [`KT-34140`](https://youtrack.jetbrains.com/issue/KT-34140) Function with contract doesn't smartcast return value in lambda
- [`KT-34314`](https://youtrack.jetbrains.com/issue/KT-34314) There is no an error diagnostic about type inference failed (impossible to infer type parameters) on callable references
- [`KT-34335`](https://youtrack.jetbrains.com/issue/KT-34335) A lambda argument without a type specifier is inferred to Nothing, if it's passed to a function, declaration of which contains vararg (e.g. Any)
- [`KT-34501`](https://youtrack.jetbrains.com/issue/KT-34501) if-expression infers `Any` when `Number?` is expected
- [`KT-34708`](https://youtrack.jetbrains.com/issue/KT-34708) Couldn't transform method node: emit$$forInline (try-catch in a Flow.map)
- [`KT-34729`](https://youtrack.jetbrains.com/issue/KT-34729) NI: type mismatch error is missed for generic higher-order functions
- [`KT-34830`](https://youtrack.jetbrains.com/issue/KT-34830) Type inference fails when using an extension method with "identical JVM signature" as method reference
- [`KT-34857`](https://youtrack.jetbrains.com/issue/KT-34857) "Illegal resolved call to variable with invoke" with operator resolved to extension property `invoke`
- [`KT-34891`](https://youtrack.jetbrains.com/issue/KT-34891) CompilationException: Failed to generate expression: KtLambdaExpression (Error type encountered)
- [`KT-34925`](https://youtrack.jetbrains.com/issue/KT-34925) MPP, IDE: False positive warning NO_REFLECTION_IN_CLASS_PATH in common code
- [`KT-35020`](https://youtrack.jetbrains.com/issue/KT-35020) "Type checking has run into a recursive problem" for overloaded generic function implemented using expression body syntax
- [`KT-35064`](https://youtrack.jetbrains.com/issue/KT-35064) NI: The new inference has overload resolution ambiguity on passing a callable reference for extension functions (> 1 candidates)
- [`KT-35207`](https://youtrack.jetbrains.com/issue/KT-35207) Incorrect generic signature in annotations when KClass is used as a generic parameter
- [`KT-35210`](https://youtrack.jetbrains.com/issue/KT-35210) NI: OnlyInputTypes check fails for types with captured ones
- [`KT-35213`](https://youtrack.jetbrains.com/issue/KT-35213) NI: overload resolution ambiguity for callable reference with defined LHS
- [`KT-35226`](https://youtrack.jetbrains.com/issue/KT-35226) Forbid spread operator in signature-polymorphic calls
- [`KT-35306`](https://youtrack.jetbrains.com/issue/KT-35306) `Non-applicable call for builder inference` for nested builder functions which return generic types that are wrapped.
- [`KT-35337`](https://youtrack.jetbrains.com/issue/KT-35337) IllegalStateException: Failed to generate expression: KtLambdaExpression
- [`KT-35398`](https://youtrack.jetbrains.com/issue/KT-35398) NI, IDE: Duplicate warning message JAVA_CLASS_ON_COMPANION in argument position
- [`KT-35469`](https://youtrack.jetbrains.com/issue/KT-35469) Change behavior of signature-polymorphic calls to methods with a single vararg parameter, to avoid wrapping the argument into another array
- [`KT-35487`](https://youtrack.jetbrains.com/issue/KT-35487) Type safety problem because of lack of captured conversion against nullable type argument
- [`KT-35494`](https://youtrack.jetbrains.com/issue/KT-35494) NI: Multiple duplicate error diagnostics (in IDE popup) with NULL_FOR_NONNULL_TYPE
- [`KT-35514`](https://youtrack.jetbrains.com/issue/KT-35514) Type inference failure with `out` type and if-else inside lambda
- [`KT-35517`](https://youtrack.jetbrains.com/issue/KT-35517) TYPE_MISMATCH error duplication for not Boolean condition in if-expression
- [`KT-35535`](https://youtrack.jetbrains.com/issue/KT-35535) Illegal callable reference receiver allowed in new inference
- [`KT-35578`](https://youtrack.jetbrains.com/issue/KT-35578) Diagnostics are sometimes duplicated
- [`KT-35602`](https://youtrack.jetbrains.com/issue/KT-35602) NI doesn't approximate star projections properly for self types
- [`KT-35658`](https://youtrack.jetbrains.com/issue/KT-35658) NI: Common super type between Inv<A!>, Inv<A?> and Inv<A> is Inv<out A?>, not Inv<A!> (as old inference)
- [`KT-35668`](https://youtrack.jetbrains.com/issue/KT-35668) NI: the lack of fixing to Nothing problem (one of the bugs: the lack of smartcast through cast of Nothing? to Nothing after elvis)
- [`KT-35679`](https://youtrack.jetbrains.com/issue/KT-35679) Type safety problem because several equal type variables are instantiated with a different types
- [`KT-35684`](https://youtrack.jetbrains.com/issue/KT-35684) NI: "IllegalStateException: Expected some types" from builder-inference about intersecting empty types on trivial code
- [`KT-35814`](https://youtrack.jetbrains.com/issue/KT-35814) Inference fails to infer common upper type for java types
- [`KT-35834`](https://youtrack.jetbrains.com/issue/KT-35834) Do not declare checked exceptions in JVM bytecode when using delegation to Kotlin interfaces
- [`KT-35920`](https://youtrack.jetbrains.com/issue/KT-35920) NI allows callable references prohibited in old inference
- [`KT-35943`](https://youtrack.jetbrains.com/issue/KT-35943) NI: IllegalStateException: No error about uninferred type parameter
- [`KT-35945`](https://youtrack.jetbrains.com/issue/KT-35945) Using Polymorphism and Type Inference the compiler fails having a Type with Type with Type
- [`KT-35992`](https://youtrack.jetbrains.com/issue/KT-35992) Wrong overload resolution with explicit type arguments if KFunction and type parameter once nullable and once non-nullable
- [`KT-36001`](https://youtrack.jetbrains.com/issue/KT-36001) "IllegalStateException: Error type encountered" with elvis in generic function
- [`KT-36002`](https://youtrack.jetbrains.com/issue/KT-36002) KotlinFrontEndException: Exception while analyzing expression
- [`KT-36065`](https://youtrack.jetbrains.com/issue/KT-36065) Type inference failed for generic function invoked on implicitly nullable variable created from Java
- [`KT-36066`](https://youtrack.jetbrains.com/issue/KT-36066) Type inference problem in compiler
- [`KT-36101`](https://youtrack.jetbrains.com/issue/KT-36101) False positive IMPLICIT_NOTHING_AS_TYPE_PARAMETER with suspend lambdas
- [`KT-36146`](https://youtrack.jetbrains.com/issue/KT-36146) Drop support of language version 1.0/1.1, deprecate language version 1.2
- [`KT-36192`](https://youtrack.jetbrains.com/issue/KT-36192) Redundant smart cast for overloaded functions
- [`KT-36202`](https://youtrack.jetbrains.com/issue/KT-36202) NI: false positive "NON_APPLICABLE_CALL_FOR_BUILDER_INFERENCE" with elvis operator in lambda
- [`KT-36220`](https://youtrack.jetbrains.com/issue/KT-36220) NI: false positive NON_APPLICABLE_CALL_FOR_BUILDER_INFERENCE if one use cannot resolve
- [`KT-36221`](https://youtrack.jetbrains.com/issue/KT-36221) NI: UnsupportedOperationException: "no descriptor for type constructor" with vararg parameter when `set` or `get` methods of element passed as function reference
- [`KT-36264`](https://youtrack.jetbrains.com/issue/KT-36264) NI: unstable smart cast changes results of call resolution
- [`KT-36279`](https://youtrack.jetbrains.com/issue/KT-36279) OI: Type inference fails when omitting explicit name of the lambda parameter
- [`KT-36298`](https://youtrack.jetbrains.com/issue/KT-36298) Failure to resolve return type of extension property on function literal
- [`KT-36317`](https://youtrack.jetbrains.com/issue/KT-36317) TYPE_MISMATCH diagnostic error duplication for not Boolean condition in do-while-loop-statement
- [`KT-36338`](https://youtrack.jetbrains.com/issue/KT-36338) Forbid IR backend usage with unsupported language / API version
- [`KT-36371`](https://youtrack.jetbrains.com/issue/KT-36371) Incorrect null check with NI and builder inference in generic context
- [`KT-36644`](https://youtrack.jetbrains.com/issue/KT-36644) Stop discrimination of prerelease compiler version in Kotlin plugin
- [`KT-36745`](https://youtrack.jetbrains.com/issue/KT-36745) NI: "Expected some types" with unresolved class reference
- [`KT-36776`](https://youtrack.jetbrains.com/issue/KT-36776) Treat special constructions (if, when, try) as a usual calls when there is expected type
- [`KT-36818`](https://youtrack.jetbrains.com/issue/KT-36818) NI: the lack of smartcast from Nothing returning "when" branch
- [`KT-37123`](https://youtrack.jetbrains.com/issue/KT-37123) Cycling lambda signature errors in Observable.combineLatest
- [`KT-37146`](https://youtrack.jetbrains.com/issue/KT-37146) Type inference can't resolve plus operator
- [`KT-37189`](https://youtrack.jetbrains.com/issue/KT-37189) Wrong type inferred with class with two types as argument
- [`KT-37295`](https://youtrack.jetbrains.com/issue/KT-37295) NI: Passing function with wrong returning type by reference is not shown as error
- [`KT-37345`](https://youtrack.jetbrains.com/issue/KT-37345) Wrong non-null type assertion when using Sequence and yield
- [`KT-37429`](https://youtrack.jetbrains.com/issue/KT-37429) Type inference failed: Not enough information to infer parameter with java streams
- [`KT-37480`](https://youtrack.jetbrains.com/issue/KT-37480) "None of the following candidates can be called" when compiling but no error in IDEA

### IDE

- [`KT-33573`](https://youtrack.jetbrains.com/issue/KT-33573) IDE runs platform-specific checkers on common code even if the project doesn't target the corresponding platform
- [`KT-35823`](https://youtrack.jetbrains.com/issue/KT-35823) IDE settings: deprecated values of language / API version look like regular ones
- [`KT-35871`](https://youtrack.jetbrains.com/issue/KT-35871) NPE in LightMethodBuilder
- [`KT-36034`](https://youtrack.jetbrains.com/issue/KT-36034) Kotlin 1.3.70 creates file `kotlinCodeInsightSettings.xml` with user-level settings under .idea
- [`KT-36084`](https://youtrack.jetbrains.com/issue/KT-36084) "Join lines" should remove trailing comma
- [`KT-36460`](https://youtrack.jetbrains.com/issue/KT-36460) IDE highlighting: Undo on inspection breaks analysis inside top-level property initializer
- [`KT-36712`](https://youtrack.jetbrains.com/issue/KT-36712) Use new annotation highlighting API
- [`KT-36917`](https://youtrack.jetbrains.com/issue/KT-36917) Caret has incorrect position after pressing enter on line with named argument

### IDE. Code Style, Formatting

- [`KT-36387`](https://youtrack.jetbrains.com/issue/KT-36387) Formatter: "Chained Function Calls" formats property chains
- [`KT-36393`](https://youtrack.jetbrains.com/issue/KT-36393) Incorrect trailing comma insertion for boolean operator expression
- [`KT-36466`](https://youtrack.jetbrains.com/issue/KT-36466) Formatter: "Chained Function Calls" with "Wrap first call" wrap single method call

### IDE. Completion

- [`KT-16531`](https://youtrack.jetbrains.com/issue/KT-16531) Error type displayed in completion for the result of buildSequence
- [`KT-32178`](https://youtrack.jetbrains.com/issue/KT-32178) Autocompletion of 'suspend' should not add the 'fun' keyword when writing a function type
- [`KT-34582`](https://youtrack.jetbrains.com/issue/KT-34582) Remove kotlin.coroutines.experimental from autocompletion
- [`KT-35258`](https://youtrack.jetbrains.com/issue/KT-35258) Completion problems with enabled `MixedNamedArgumentsInTheirOwnPosition` feature

### IDE. Debugger

- [`KT-12016`](https://youtrack.jetbrains.com/issue/KT-12016) Step over inside inline function lambda argument steps into inline function body
- [`KT-14296`](https://youtrack.jetbrains.com/issue/KT-14296) Can't step over inlined functions of iterator
- [`KT-14869`](https://youtrack.jetbrains.com/issue/KT-14869) Debugger: always steps into inlined lambda after returning from function
- [`KT-15652`](https://youtrack.jetbrains.com/issue/KT-15652) Step over inline function call stops at Thread.dispatchUncaughtException() in case of exceptions
- [`KT-34905`](https://youtrack.jetbrains.com/issue/KT-34905) Debugger: "Step over" steps into inline function body if lambda call splitted on several lines
- [`KT-35354`](https://youtrack.jetbrains.com/issue/KT-35354) ClassCastException in evaluate window

### IDE. Gradle. Script

- [`KT-36703`](https://youtrack.jetbrains.com/issue/KT-36703) .gradle.kts: Change text for out of project scripts

### IDE. Hints

- [`KT-37537`](https://youtrack.jetbrains.com/issue/KT-37537) IDE is missing or swallowing keystrokes when hint popups are displayed

### IDE. Hints. Parameter Info

- [`KT-14523`](https://youtrack.jetbrains.com/issue/KT-14523) Weird parameter info tooltip for map.getValue type arguments

### IDE. Inspections and Intentions

#### New Features

- [`KT-33384`](https://youtrack.jetbrains.com/issue/KT-33384) Intention to switch between single-line/multi-line lambda
- [`KT-34690`](https://youtrack.jetbrains.com/issue/KT-34690) Support intention `Convert lambda to reference` for qualified references
- [`KT-35639`](https://youtrack.jetbrains.com/issue/KT-35639) False negative inspection "redundant internal modifier" inside private class
- [`KT-36256`](https://youtrack.jetbrains.com/issue/KT-36256) Implement migration for WarningOnMainUnusedParameter
- [`KT-36257`](https://youtrack.jetbrains.com/issue/KT-36257) Implement migration for ProhibitRepeatedUseSiteTargetAnnotations
- [`KT-36258`](https://youtrack.jetbrains.com/issue/KT-36258) Implement migration for ProhibitUseSiteTargetAnnotationsOnSuperTypes
- [`KT-36260`](https://youtrack.jetbrains.com/issue/KT-36260) Implement migration for ProhibitJvmOverloadsOnConstructorsOfAnnotationClasses
- [`KT-36261`](https://youtrack.jetbrains.com/issue/KT-36261) Implement migration for ProhibitTypeParametersForLocalVariables
- [`KT-36262`](https://youtrack.jetbrains.com/issue/KT-36262) Implement migration for RestrictReturnStatementTarget

#### Fixes

- [`KT-14001`](https://youtrack.jetbrains.com/issue/KT-14001) "Convert lambda to reference" results in failed type inference
- [`KT-14781`](https://youtrack.jetbrains.com/issue/KT-14781) Import of aliased type is inserted when deprecation replacement contains typealias
- [`KT-16907`](https://youtrack.jetbrains.com/issue/KT-16907) "Convert to lambda reference" intention is erroneously shown for suspending lambda parameters, producing bad code
- [`KT-24869`](https://youtrack.jetbrains.com/issue/KT-24869) False positive inspection "Redundant 'suspend' modifier"
- [`KT-24987`](https://youtrack.jetbrains.com/issue/KT-24987) Implicit (unsafe) cast from dynamic to DONT_CARE
- [`KT-27511`](https://youtrack.jetbrains.com/issue/KT-27511) "Remove explicit type arguments" suggestion creates incorrect code
- [`KT-28415`](https://youtrack.jetbrains.com/issue/KT-28415) False positive inspection "Remove explicit type arguments" with a callable reference
- [`KT-30831`](https://youtrack.jetbrains.com/issue/KT-30831) False positive `Remove explicit type arguments` with generic type constructor with init block
- [`KT-31050`](https://youtrack.jetbrains.com/issue/KT-31050) False positive "Boolean literal argument without parameter name" inspection using expect class
- [`KT-31559`](https://youtrack.jetbrains.com/issue/KT-31559) Type inference failed: Not enough information to infer parameter K
- [`KT-32093`](https://youtrack.jetbrains.com/issue/KT-32093) NI: IDE suggests to use property access syntax instead of getter method
- [`KT-33098`](https://youtrack.jetbrains.com/issue/KT-33098) False positive "Remove explicit type arguments" with "Enable NI for IDE" and Java generic class constructor invocation with nullable argument
- [`KT-33685`](https://youtrack.jetbrains.com/issue/KT-33685) ReplaceWith does not add type parameter for function taking generic lambda with receiver
- [`KT-34511`](https://youtrack.jetbrains.com/issue/KT-34511) kotlin.KotlinNullPointerException after using intention Replace Java Map.forEach with Kotlin's forEach for Map with Pairs as keys
- [`KT-34686`](https://youtrack.jetbrains.com/issue/KT-34686) False positive "Constructor parameter is never used as a property" if property is used as a reference
- [`KT-35451`](https://youtrack.jetbrains.com/issue/KT-35451) Type inference fails after applying false positive inspection "Remove explicit type arguments "
- [`KT-35475`](https://youtrack.jetbrains.com/issue/KT-35475) Applying intention "Redundant curly braces in string template" for label references change semantic
- [`KT-35528`](https://youtrack.jetbrains.com/issue/KT-35528) Intention `Replace 'when' with 'if'` produces wrong code if expression subject is a variable declaration
- [`KT-35588`](https://youtrack.jetbrains.com/issue/KT-35588) Applying "Lift assignment out of 'if'" for if statement that has lambda plus assignment and 'return' leads to type mismatch
- [`KT-35604`](https://youtrack.jetbrains.com/issue/KT-35604) Too long quickfix message for "modifier 'open' is not applicable to 'companion object'"
- [`KT-35648`](https://youtrack.jetbrains.com/issue/KT-35648) False negative intention "Remove argument name" on named positional arguments
- [`KT-36160`](https://youtrack.jetbrains.com/issue/KT-36160) False positive "Constructor has non-null self reference parameter" with vararg parameter of class
- [`KT-36171`](https://youtrack.jetbrains.com/issue/KT-36171) intention "Replace 'get' call with indexing operator" works incorrectly with spread operator
- [`KT-36255`](https://youtrack.jetbrains.com/issue/KT-36255) Implement migration tool for 1.4
- [`KT-36357`](https://youtrack.jetbrains.com/issue/KT-36357) "Lift assignment out of 'if'" breaks code for oneliner function
- [`KT-36360`](https://youtrack.jetbrains.com/issue/KT-36360) OI: False positive "remove explicit type arguments" for SequenceScope leads to compiler failure with "Type inference failed"
- [`KT-36369`](https://youtrack.jetbrains.com/issue/KT-36369) "To raw string literal" intention is not available if string content starts with newline symbol \n

### IDE. Multiplatform

- [`KT-36978`](https://youtrack.jetbrains.com/issue/KT-36978) Infinite "org.jetbrains.kotlin.idea.caches.resolve.KotlinIdeaResolutionException: Kotlin resolution encountered a problem while analyzing KtFile" exceptions in hierarchical multiplatform projects

### IDE. Navigation

- [`KT-30628`](https://youtrack.jetbrains.com/issue/KT-30628) Navigation from Java sources to calls on Kotlin function annotated with @JvmOverloads that have optional arguments omitted leads to decompiled code

### IDE. Refactorings

#### New Features

- [`KT-26999`](https://youtrack.jetbrains.com/issue/KT-26999) Inspection for unused main parameter in Kotlin 1.3
- [`KT-33339`](https://youtrack.jetbrains.com/issue/KT-33339) Refactor / Move is disabled for Kotlin class selected together with Kotlin file

#### Fixes

- [`KT-22131`](https://youtrack.jetbrains.com/issue/KT-22131) "Extract method" refactoring treats smart casted variables as non-local
- [`KT-24615`](https://youtrack.jetbrains.com/issue/KT-24615) "Extract property" generates useless extension property
- [`KT-26047`](https://youtrack.jetbrains.com/issue/KT-26047) Refactor -> Rename: Overridden method renaming in generic class doesn't rename base method
- [`KT-26248`](https://youtrack.jetbrains.com/issue/KT-26248) "Refactor -> Inline variable" breaks callable references
- [`KT-31401`](https://youtrack.jetbrains.com/issue/KT-31401) Refactor / Inlining function reference in Java method with Runnable argument produces compile error
- [`KT-33709`](https://youtrack.jetbrains.com/issue/KT-33709) Inline variable: NONE_APPLICABLE with overloaded generic Java method with SAM conversion
- [`KT-34190`](https://youtrack.jetbrains.com/issue/KT-34190) Inline Function: False positive error "not at the end of the body" with anonymous object
- [`KT-35235`](https://youtrack.jetbrains.com/issue/KT-35235) Unable to move multiple class files to a different package
- [`KT-35463`](https://youtrack.jetbrains.com/issue/KT-35463) ClassCastException during moving .kt file with one single class to the other folder in Android Studio
- [`KT-36312`](https://youtrack.jetbrains.com/issue/KT-36312) Refactor Move refactoring to get it ready for MPP-related fixes

### IDE. Run Configurations

- [`KT-34503`](https://youtrack.jetbrains.com/issue/KT-34503) "Nothing here" is shown as a drop-down list for "Run test" gutter icon for a multiplatform test with expect/actual parts in platform-agnostic code
- [`KT-36093`](https://youtrack.jetbrains.com/issue/KT-36093) Running Gradle java tests are broken for Gradle older than 4.0 (Could not set unknown property 'testClassesDirs' for task ':nonJvmTestIdeSupport')

### JavaScript

- [`KT-23284`](https://youtrack.jetbrains.com/issue/KT-23284) Reified type arguments aren't substituted when invoking inline val value

### Libraries

- [`KT-26654`](https://youtrack.jetbrains.com/issue/KT-26654) Remove deprecated 'mod' operators
- [`KT-27856`](https://youtrack.jetbrains.com/issue/KT-27856) Add contracts to Timing.kt lambdas
- [`KT-28356`](https://youtrack.jetbrains.com/issue/KT-28356) Fail fast in Regex.findAll on an invalid startIndex
- [`KT-29748`](https://youtrack.jetbrains.com/issue/KT-29748) Declare kotlin.reflect.KType in kotlin-stdlib-common
- [`KT-30360`](https://youtrack.jetbrains.com/issue/KT-30360) Deprecate conversions of floating point types to integral types lesser than Int
- [`KT-32855`](https://youtrack.jetbrains.com/issue/KT-32855) KTypeParameter is available in common code, but not available in Native
- [`KT-35216`](https://youtrack.jetbrains.com/issue/KT-35216) <T : AutoCloseable?, R> T.use and <T : Closeable?, R> T.use should have contracts
- [`KT-36082`](https://youtrack.jetbrains.com/issue/KT-36082) JS Regex.find does not throw IndexOutOfBoundsException on invalid start index
- [`KT-36083`](https://youtrack.jetbrains.com/issue/KT-36083) Extract kotlin.coroutines.experimental.* packages to a separate compatibility artifact

### Reflection

- [`KT-30071`](https://youtrack.jetbrains.com/issue/KT-30071) Implement KTypeProjection.toString
- [`KT-35991`](https://youtrack.jetbrains.com/issue/KT-35991) Embed Proguard/R8 rules in kotlin-reflect artifact jar

### Tools. CLI

- [`KT-28475`](https://youtrack.jetbrains.com/issue/KT-28475) java.sql module not available in kotlinc scripts on Java 9+ due to use of Bootstrap Classloader

### Tools. Gradle. JS

- [`KT-34989`](https://youtrack.jetbrains.com/issue/KT-34989) NodeJs is not re-downloaded if the node binary gets accidentally deleted
- [`KT-35465`](https://youtrack.jetbrains.com/issue/KT-35465) Gradle, JS: Gradle tooling for IR compiler
- [`KT-36472`](https://youtrack.jetbrains.com/issue/KT-36472) Kotlin/JS Gradle plugin iterates over all Gradle tasks, triggering their lazy configuration
- [`KT-36488`](https://youtrack.jetbrains.com/issue/KT-36488) Gradle, JS, IR: Publishing from JS plugin

### Tools. Gradle. Multiplatform

- [`KT-37264`](https://youtrack.jetbrains.com/issue/KT-37264) In intermediate common source sets, internals are not visible from their dependsOn source sets during Gradle build

### Tools. Gradle. Native

- [`KT-36804`](https://youtrack.jetbrains.com/issue/KT-36804) In a project with Kotlin/Native targets and kotlinx.serialization, IDE import fails: Could not create task '...'. / Cannot change dependencies of configuration after it has been resolved.

### Tools. J2K

- [`KT-20120`](https://youtrack.jetbrains.com/issue/KT-20120) J2K: Java 9 `forRemoval` and `since` methods of `Deprecated` are not processed

### Tools. Scripts

- [`KT-35414`](https://youtrack.jetbrains.com/issue/KT-35414) Switch for `-Xexpression` to `-expression`/`-e` cli argument syntax for JVM cli compiler in 1.4


## 1.3.72 - IDE plugins update

### Backend. JVM

- [`KT-39013`](https://youtrack.jetbrains.com/issue/KT-39013) 202, ASM 8: "AnalyzerException: Execution can fall off the end of the code"

### IDE. Decompiler, Indexing, Stubs

- [`KT-37896`](https://youtrack.jetbrains.com/issue/KT-37896) IAE: "Argument for @NotNull parameter 'file' of IndexTodoCacheManagerImpl.getTodoCount must not be null" through KotlinTodoSearcher.processQuery()

### IDE. Gradle Integration 

- [`KT-38037`](https://youtrack.jetbrains.com/issue/KT-38037) UnsupportedOperationException on sync gradle Kotlin project with at least two multiplatform modules

### IDE. Highlighting 

- [`KT-39590`](https://youtrack.jetbrains.com/issue/KT-39590) Turn new inference in IDE for 1.3.70 version off

### IDE. Refactorings 

- [`KT-38527`](https://youtrack.jetbrains.com/issue/KT-38527) Move nested class to upper level fails silently: MissingResourceException

### Tools.JPS

- [`KT-27458`](https://youtrack.jetbrains.com/issue/KT-27458) The Kotlin standard library is not found in the module graph ... in a non-Kotlin project.


## 1.3.72

### Compiler

- [`KT-37107`](https://youtrack.jetbrains.com/issue/KT-37107) kotlinc allows calling default constructor of class with no constructors
- [`KT-37406`](https://youtrack.jetbrains.com/issue/KT-37406) NI: "UnsupportedOperationException: no descriptor for type constructor of TypeVariable(T)" when compiling `*.gradle.kts` file

### IDE

- [`KT-37483`](https://youtrack.jetbrains.com/issue/KT-37483) Kotlin localisation
- [`KT-37629`](https://youtrack.jetbrains.com/issue/KT-37629) False positive "Unsupported [literal prefixes and suffixes]" for infix function
- [`KT-37808`](https://youtrack.jetbrains.com/issue/KT-37808) "Resolve pasted references" dialog freezes UI for 20 seconds when pasting kotlin code

### IDE. Completion

- [`KT-37144`](https://youtrack.jetbrains.com/issue/KT-37144) Completion goes into an infinite loop with Arrow 0.10.4 dependency

### IDE. Debugger

- [`KT-37767`](https://youtrack.jetbrains.com/issue/KT-37767) Debugger, NPE happens while stepping.

### IDE. Editing

- [`KT-35135`](https://youtrack.jetbrains.com/issue/KT-35135) UI freeze: not enough checkCancelled on resolve path

### IDE. Inspections and Intentions

- [`KT-37217`](https://youtrack.jetbrains.com/issue/KT-37217) Replace UseExperimental with OptIn intention removes target prefixes for annotations

### IDE. Native

- [`KT-38079`](https://youtrack.jetbrains.com/issue/KT-38079) IDEA navigates to wrong line of source code from Native stack trace

### IDE. Navigation

- [`KT-37487`](https://youtrack.jetbrains.com/issue/KT-37487) Destructuring declarations are called "destruction declarations" in UI

### Tools. Gradle. Native

- [`KT-37696`](https://youtrack.jetbrains.com/issue/KT-37696) MPP Gradle plugin: False positive parallel execution detection if build started with --continue

## 1.3.71

### Compiler

- [`KT-36095`](https://youtrack.jetbrains.com/issue/KT-36095) 201: False positive OVERLOAD_RESOLUTION_AMBIGUITY with Java `Enum.valueOf` and `Enum.values()` reference
- [`KT-37040`](https://youtrack.jetbrains.com/issue/KT-37040) 'No explicit visibility in API mode' should not be reported on enum members
- [`KT-37204`](https://youtrack.jetbrains.com/issue/KT-37204) AssertionError: "No delegated property metadata owner for" with lazy inside inline function

### Docs & Examples

- [`KT-37029`](https://youtrack.jetbrains.com/issue/KT-37029) Kotlin full stack app demo: update all involving versions to work with 1.3.70 release

### IDE

- [`KT-34759`](https://youtrack.jetbrains.com/issue/KT-34759) "PSI and index do not match" and high CPU usage when the library has `enum` with elements in quotes and `internal lazy val` in another part of code
- [`KT-37200`](https://youtrack.jetbrains.com/issue/KT-37200) StackOverflowError in LightMethodBuilder.equals when analysing Kotlin files
- [`KT-37229`](https://youtrack.jetbrains.com/issue/KT-37229) java.lang.NoSuchMethodError: 'com.intellij.psi.impl.light.LightJavaModule, com.intellij.psi.impl.light.LightJavaModule.findModule after updating kotlin plugin to 1.3.70
- [`KT-37273`](https://youtrack.jetbrains.com/issue/KT-37273) No error in editor when typing unresolved reference in super constructor lambda
- [`KT-37414`](https://youtrack.jetbrains.com/issue/KT-37414) Not all imports are added on paste if code is formatted after paste
- [`KT-37553`](https://youtrack.jetbrains.com/issue/KT-37553) Run inspections after general highlight pass

### IDE. Code Style, Formatting

- [`KT-37545`](https://youtrack.jetbrains.com/issue/KT-37545) Continuation indent for method's parameter changes in call chain

### IDE. Hints

- [`KT-37537`](https://youtrack.jetbrains.com/issue/KT-37537) IDE is missing or swallowing keystrokes when hint popups are displayed

### IDE. Inspections and Intentions

- [`KT-36478`](https://youtrack.jetbrains.com/issue/KT-36478) IDE suggests to use 'OptIn' annotation when it is not available in the used version of kotlin-stdlib
- [`KT-37294`](https://youtrack.jetbrains.com/issue/KT-37294) False positive "Unused unary operator" on negative long annotation value

### IDE. Navigation

- [`KT-36657`](https://youtrack.jetbrains.com/issue/KT-36657) KotlinFindUsagesHandler#processElementUsages always return false if options.isSearchForTextOccurrences is false

### IDE. Refactorings

- [`KT-37451`](https://youtrack.jetbrains.com/issue/KT-37451) Change of signature error: Type of parameter cannot be resolved
- [`KT-37597`](https://youtrack.jetbrains.com/issue/KT-37597) Support Suggest rename and change signature refactorings in Kotlin for IDEA 2020.1

### IDE. Run Configurations

- [`KT-36781`](https://youtrack.jetbrains.com/issue/KT-36781) Override ConfigurationFactory::getId method in Kotlin plugin to avoid problems with localizations

### JavaScript

- [`KT-37386`](https://youtrack.jetbrains.com/issue/KT-37386) Incorrect JS generated by the compiler: function is erased by the function parameter

### Tools. Gradle. JS

- [`KT-36196`](https://youtrack.jetbrains.com/issue/KT-36196) Investigate performance problems while resolving in projects with npm dependencies

### Tools. Gradle. Multiplatform

- [`KT-37264`](https://youtrack.jetbrains.com/issue/KT-37264) In intermediate common source sets, internals are not visible from their dependsOn source sets during Gradle build

### Tools. Gradle. Native

- [`KT-37565`](https://youtrack.jetbrains.com/issue/KT-37565) MPP plugin: Forbid parallel in-process execution of the Kotlin/Native compiler

### Tools. kapt

- [`KT-37241`](https://youtrack.jetbrains.com/issue/KT-37241) Kapt: Classpath entry points to a non-existent location: ...build/intermediates/javac/debug/classes...


## 1.3.70

### Compiler

#### New Features

- [`KT-34648`](https://youtrack.jetbrains.com/issue/KT-34648) Support custom messages for @RequiresOptIn-marked annotations

#### Performance Improvements

- [`KT-14513`](https://youtrack.jetbrains.com/issue/KT-14513) Suboptimal compilation of lazy delegated properties with inline getValue

#### Fixes

- [`KT-19234`](https://youtrack.jetbrains.com/issue/KT-19234) Improve "Supertypes of the following classes cannot be resolved" diagnostic
- [`KT-21178`](https://youtrack.jetbrains.com/issue/KT-21178) Prohibit access of protected members inside public inline members
- [`KT-24461`](https://youtrack.jetbrains.com/issue/KT-24461) Expect interface with suspend function with default arguments causes runtime error
- [`KT-25514`](https://youtrack.jetbrains.com/issue/KT-25514) Support usage of function reference with vararg where function of array is expected in new inference
- [`KT-26435`](https://youtrack.jetbrains.com/issue/KT-26435) Bad frame merge after inline
- [`KT-27825`](https://youtrack.jetbrains.com/issue/KT-27825) Gradually prohibit non-abstract classes containing abstract members invisible from that classes (internal/package-private)
- [`KT-27999`](https://youtrack.jetbrains.com/issue/KT-27999) Generic type is fixed too early for lambda arguments
- [`KT-28940`](https://youtrack.jetbrains.com/issue/KT-28940) Concurrency issue for lazy values with the post-computation phase
- [`KT-29242`](https://youtrack.jetbrains.com/issue/KT-29242) Conditional with generic type Nothing inside inline function throws `java.lang.VerifyError: Bad return type`
- [`KT-30244`](https://youtrack.jetbrains.com/issue/KT-30244) Unable to infer common return type for two postponed arguments
- [`KT-30245`](https://youtrack.jetbrains.com/issue/KT-30245) Wrong type is inferred for lambda if it has expected type with an extension receiver
- [`KT-30277`](https://youtrack.jetbrains.com/issue/KT-30277) Relax the "no reflection found in class path" warning for KType and related API
- [`KT-30744`](https://youtrack.jetbrains.com/issue/KT-30744) Invoking Interface Static Method from Extension method generates incorrect jvm bytecode
- [`KT-30953`](https://youtrack.jetbrains.com/issue/KT-30953) Missing unresolved if callable reference is used in the place in which common super type is computing
- [`KT-31227`](https://youtrack.jetbrains.com/issue/KT-31227) Prohibit using array based on non-reified type parameters as reified type arguments on JVM
- [`KT-31242`](https://youtrack.jetbrains.com/issue/KT-31242) "Can't find enclosing method" proguard compilation exception with inline and crossinline
- [`KT-31411`](https://youtrack.jetbrains.com/issue/KT-31411) Support mode of compiler where it analyses source-set as platform one, but produces only metadata for that specific source-set
- [`KT-31653`](https://youtrack.jetbrains.com/issue/KT-31653) Incorrect transformation of the try-catch cover when inlining
- [`KT-31923`](https://youtrack.jetbrains.com/issue/KT-31923) Outer finally block inserted before return instruction is not excluded from catch interval of inner try (without finally) block
- [`KT-31975`](https://youtrack.jetbrains.com/issue/KT-31975) No diagnostic on error type
- [`KT-32106`](https://youtrack.jetbrains.com/issue/KT-32106) New type inference: IDE shows error but the code compiles succesfully
- [`KT-32138`](https://youtrack.jetbrains.com/issue/KT-32138) New type inference: Invoking type-aliased extension function red in IDE, but compiles
- [`KT-32168`](https://youtrack.jetbrains.com/issue/KT-32168) Problem in IDE with new type inference and delegate provider
- [`KT-32243`](https://youtrack.jetbrains.com/issue/KT-32243) New type inference: Type mistmatch in collection type usage
- [`KT-32345`](https://youtrack.jetbrains.com/issue/KT-32345) New type inference: Error when using helper method to create delegate provider
- [`KT-32372`](https://youtrack.jetbrains.com/issue/KT-32372) Type inference errors in IDE
- [`KT-32415`](https://youtrack.jetbrains.com/issue/KT-32415) Type mismatch on argument of super constructor of inner class call
- [`KT-32423`](https://youtrack.jetbrains.com/issue/KT-32423) New type inference: IllegalStateException: Error type encountered: org.jetbrains.kotlin.types.ErrorUtils$UninferredParameterTypeConstructor@211a538e (ErrorType)
- [`KT-32435`](https://youtrack.jetbrains.com/issue/KT-32435) New inference preserves platform types while old inference can substitute them with the nullable result type
- [`KT-32456`](https://youtrack.jetbrains.com/issue/KT-32456) New type inference: "IllegalStateException: Error type encountered" when adding emptyList to mutableList
- [`KT-32499`](https://youtrack.jetbrains.com/issue/KT-32499) Kotlin/JS 1.3.40 - new type inference with toTypedArray() failure
- [`KT-32742`](https://youtrack.jetbrains.com/issue/KT-32742) Gradle/JS "Unresolved Reference" when accessing setting field of Dynamic object w/ React
- [`KT-32818`](https://youtrack.jetbrains.com/issue/KT-32818) Type inference failed with elvis operator
- [`KT-32862`](https://youtrack.jetbrains.com/issue/KT-32862) New type inference: Compilation error "IllegalArgumentException: ClassicTypeSystemContextForCS couldn't handle" with overloaded generic extension function reference passed as parameter
- [`KT-33033`](https://youtrack.jetbrains.com/issue/KT-33033) New type inference: Nothing incorrectly inferred as return type when null passed to generic function with expression if statement body
- [`KT-33197`](https://youtrack.jetbrains.com/issue/KT-33197) Expression with branch resolving to List<…> ultimately resolves to MutableList<…>
- [`KT-33263`](https://youtrack.jetbrains.com/issue/KT-33263) "IllegalStateException: Type variable TypeVariable(T) should not be fixed!" with generic extension function and in variance
- [`KT-33542`](https://youtrack.jetbrains.com/issue/KT-33542) Compilation failed with "AssertionError: Suspend functions may be called either as suspension points or from another suspend function"
- [`KT-33544`](https://youtrack.jetbrains.com/issue/KT-33544) "UnsupportedOperationException: no descriptor for type constructor of TypeVariable(R)?" with BuilderInference and elvis operator
- [`KT-33592`](https://youtrack.jetbrains.com/issue/KT-33592) New type inference: Missed error in IDE — Unsupported [Collection literals outside of annotations]
- [`KT-33932`](https://youtrack.jetbrains.com/issue/KT-33932) Compiler fails when it encounters inaccessible classes in javac integration mode
- [`KT-34029`](https://youtrack.jetbrains.com/issue/KT-34029) StackOverflowError for access to nested object inheriting from containing generic class at `org.jetbrains.kotlin.descriptors.impl.LazySubstitutingClassDescriptor.getTypeConstructor`
- [`KT-34060`](https://youtrack.jetbrains.com/issue/KT-34060) UNUSED_PARAMETER is not reported on unused parameters of non-operator getValue/setValue/prodiveDelegate functions
- [`KT-34282`](https://youtrack.jetbrains.com/issue/KT-34282) Missing diagnostic of unresolved for callable references with overload resolution ambiguity
- [`KT-34391`](https://youtrack.jetbrains.com/issue/KT-34391) New type inference: False negative EXPERIMENTAL_API_USAGE_ERROR with callable reference
- [`KT-34395`](https://youtrack.jetbrains.com/issue/KT-34395) KtWhenConditionInRange.isNegated() doesn't work
- [`KT-34500`](https://youtrack.jetbrains.com/issue/KT-34500) CompilationException when loop range is DoubleArray and loop parameter is casted to super-type (e.g. Any, Number, etc.)
- [`KT-34647`](https://youtrack.jetbrains.com/issue/KT-34647) Gradually rename experimentality annotations
- [`KT-34649`](https://youtrack.jetbrains.com/issue/KT-34649) Deprecate `-Xexperimental` flag
- [`KT-34779`](https://youtrack.jetbrains.com/issue/KT-34779) JVM: "get()" is not invoked in optimized "for" loop over CharSequence.withIndex() with unused variable ("_") for the element in destructuring declaration
- [`KT-34786`](https://youtrack.jetbrains.com/issue/KT-34786) Flaky type inference for lambda expressions
- [`KT-34820`](https://youtrack.jetbrains.com/issue/KT-34820) New type inference: Red code when expanding type-aliased extension function in LHS position of elvis
- [`KT-34888`](https://youtrack.jetbrains.com/issue/KT-34888) Kotlin REPL ignores compilation errors in class declaration
- [`KT-35035`](https://youtrack.jetbrains.com/issue/KT-35035) Incorrect state-machine generated for suspend lambda inside inline lambda
- [`KT-35101`](https://youtrack.jetbrains.com/issue/KT-35101) "AssertionError: Mapping ranges should be presented in inline lambda" with a callable reference argument to inline lambda
- [`KT-35168`](https://youtrack.jetbrains.com/issue/KT-35168) New type inference: "UninitializedPropertyAccessException: lateinit property subResolvedAtoms has not been initialized"
- [`KT-35172`](https://youtrack.jetbrains.com/issue/KT-35172) New type inference: False positive type mismatch if nullable type after elvis and safe call inside lambda is returning (expected type is specified explicitly)
- [`KT-35224`](https://youtrack.jetbrains.com/issue/KT-35224) New type inference: Java call candidate with varargs as Array<something> isn't present if SAM type was used in this call
- [`KT-35262`](https://youtrack.jetbrains.com/issue/KT-35262) Suspend function with Unit return type returns non-unit value if it is derived from function with non-unit return type
- [`KT-35426`](https://youtrack.jetbrains.com/issue/KT-35426) `IncompatibleClassChangeError: Method 'int java.lang.Object.hashCode()' must be Methodref constant` when invoking on super with explicit  generic type
- [`KT-35843`](https://youtrack.jetbrains.com/issue/KT-35843) Emit type annotations in JVM bytecode with target 1.8+ on basic constructions
- [`KT-36297`](https://youtrack.jetbrains.com/issue/KT-36297) New type inference: ClassNotFoundException: compiler emits reference to nonexisting class for code with nested inline lambdas
- [`KT-36719`](https://youtrack.jetbrains.com/issue/KT-36719) Enable new inference in IDE since 1.3.70

### Docs & Examples

- [`KT-31118`](https://youtrack.jetbrains.com/issue/KT-31118) Provide missing documentation for StringBuilder members

### IDE

#### New Features

- [`KT-27496`](https://youtrack.jetbrains.com/issue/KT-27496) Color Scheme: allow changing style for suspend function calls
- [`KT-30806`](https://youtrack.jetbrains.com/issue/KT-30806) Add IntelliJ Color Scheme rules for property declarations
- [`KT-34303`](https://youtrack.jetbrains.com/issue/KT-34303) IDE should suggest to import an extension iterator function when using for loop with a range
- [`KT-34567`](https://youtrack.jetbrains.com/issue/KT-34567) Feature: Auto add val keyword on typing data/inline class ctor parameters
- [`KT-34667`](https://youtrack.jetbrains.com/issue/KT-34667) Add auto-import quickfix for overloaded generic function

#### Performance Improvements

- [`KT-30726`](https://youtrack.jetbrains.com/issue/KT-30726) Editor is laggy if the code below a current line has unresolved reference
- [`KT-30863`](https://youtrack.jetbrains.com/issue/KT-30863) IDE freeze on editing with "Add unambiguous imports on the fly" turned on
- [`KT-32868`](https://youtrack.jetbrains.com/issue/KT-32868) Provide incremental analysis of file when it is applicable
- [`KT-33250`](https://youtrack.jetbrains.com/issue/KT-33250) KtLightClassForSourceDeclaration.isFinal() can be very slow (with implications for class inheritor search)
- [`KT-33905`](https://youtrack.jetbrains.com/issue/KT-33905) Optimize imports under reasonable progress
- [`KT-33939`](https://youtrack.jetbrains.com/issue/KT-33939) Copy action leads to freezes
- [`KT-34956`](https://youtrack.jetbrains.com/issue/KT-34956) UI Freeze: PlainTextPasteImportResolver
- [`KT-35121`](https://youtrack.jetbrains.com/issue/KT-35121) Add support for KtSecondaryConstructors into incremental analysis
- [`KT-35189`](https://youtrack.jetbrains.com/issue/KT-35189) Support incremental analysis of comment and kdoc
- [`KT-35590`](https://youtrack.jetbrains.com/issue/KT-35590) UI freeze in kotlin.idea.core.script.ScriptConfigurationMemoryCache when editing file

#### Fixes

- [`KT-10478`](https://youtrack.jetbrains.com/issue/KT-10478) Move-statement doesn't work for methods with single-expression body and lambda as returning type
- [`KT-13344`](https://youtrack.jetbrains.com/issue/KT-13344) Reduce visual distraction of val keyword
- [`KT-14758`](https://youtrack.jetbrains.com/issue/KT-14758) Move statement up shouldn't move top level declarations above package and import directives
- [`KT-23305`](https://youtrack.jetbrains.com/issue/KT-23305) We should be able to see platform-specific errors in common module
- [`KT-24399`](https://youtrack.jetbrains.com/issue/KT-24399) No scrollbar in Kotlin compiler settings
- [`KT-27806`](https://youtrack.jetbrains.com/issue/KT-27806) UAST: @Deprecated(level=DeprecationLevel.HIDDEN) makes method disappear
- [`KT-28708`](https://youtrack.jetbrains.com/issue/KT-28708) Java IDE fails to understand @JvmDefault on properties from binaries
- [`KT-30489`](https://youtrack.jetbrains.com/issue/KT-30489) Kotlin functions are represented in UAST as UAnnotationMethods
- [`KT-31037`](https://youtrack.jetbrains.com/issue/KT-31037) Lambda expression default parameter 'it' sometimes is not highlighted in a call chain
- [`KT-31365`](https://youtrack.jetbrains.com/issue/KT-31365) IDE does not resolve references to stdlib symbols in certain packages (kotlin.jvm) when using OSGi bundle
- [`KT-32031`](https://youtrack.jetbrains.com/issue/KT-32031) UAST: Method body missing for suspend functions
- [`KT-32540`](https://youtrack.jetbrains.com/issue/KT-32540) Ultra light class support for compiler plugins
- [`KT-33820`](https://youtrack.jetbrains.com/issue/KT-33820) Stop using `com.intellij.codeInsight.AnnotationUtil#isJetbrainsAnnotation`
- [`KT-33846`](https://youtrack.jetbrains.com/issue/KT-33846) Stop using `com.intellij.openapi.vfs.newvfs.BulkFileListener.Adapter`
- [`KT-33888`](https://youtrack.jetbrains.com/issue/KT-33888) Bad indentation when copy-paste to trimIndent()
- [`KT-34081`](https://youtrack.jetbrains.com/issue/KT-34081) Kotlin constants used in Java annotation attributes trigger "Attribute value must be constant" error
- [`KT-34316`](https://youtrack.jetbrains.com/issue/KT-34316) UAST: reified methods no longer visible in UAST
- [`KT-34337`](https://youtrack.jetbrains.com/issue/KT-34337) Descriptors Leak in UltraLightClasses
- [`KT-34379`](https://youtrack.jetbrains.com/issue/KT-34379) "Implement members" with unspecified type argument: "AssertionError: 2 declarations in override fun"
- [`KT-34785`](https://youtrack.jetbrains.com/issue/KT-34785) Enter handler: do not add 'trimIndent()' in const
- [`KT-34914`](https://youtrack.jetbrains.com/issue/KT-34914) Analysis sometimes isn't rerun until an out of code block change
- [`KT-35222`](https://youtrack.jetbrains.com/issue/KT-35222) SQL language is not injected to String array attribute of Java annotation
- [`KT-35266`](https://youtrack.jetbrains.com/issue/KT-35266) Kotlin-specific setting "Optimize imports on the fly" is useless
- [`KT-35454`](https://youtrack.jetbrains.com/issue/KT-35454) Weird implementation of KtUltraLightFieldImpl.isEquivalentTo
- [`KT-35673`](https://youtrack.jetbrains.com/issue/KT-35673) ClassCastException on destructuring declaration with annotation
- [`KT-36008`](https://youtrack.jetbrains.com/issue/KT-36008) IDEA 201: NSME: "com.intellij.openapi.progress.util.ProgressIndicatorUtils.awaitWithCheckCanceled(Future)" at org.jetbrains.kotlin.idea.util.ProgressIndicatorUtils.awaitWithCheckCanceled()

### IDE. Code Style, Formatting

#### New Features

- [`KT-35088`](https://youtrack.jetbrains.com/issue/KT-35088) Insert empty line between a declaration and declaration with comment
- [`KT-35106`](https://youtrack.jetbrains.com/issue/KT-35106) Insert empty line between a declaration and declaration with annotation

#### Fixes

- [`KT-4194`](https://youtrack.jetbrains.com/issue/KT-4194) Code formatter should not move end of line comment after `if` condition to the next line
- [`KT-12490`](https://youtrack.jetbrains.com/issue/KT-12490) Formatter inserts empty line between single-line declarations in presence of comment
- [`KT-22273`](https://youtrack.jetbrains.com/issue/KT-22273) Labeled statements are formatted incorrectly
- [`KT-22362`](https://youtrack.jetbrains.com/issue/KT-22362) Formatter breaks up infix function used in elvis operator
- [`KT-23811`](https://youtrack.jetbrains.com/issue/KT-23811) Formatter: Constructor parameters are joined with previous line if prefixed with an annotation
- [`KT-23929`](https://youtrack.jetbrains.com/issue/KT-23929) Formatter: chained method calls: "Chop down if long" setting is ignored
- [`KT-23957`](https://youtrack.jetbrains.com/issue/KT-23957) Formatter tears comments away from file annotations
- [`KT-30393`](https://youtrack.jetbrains.com/issue/KT-30393) Remove unnecessary whitespaces between property accessor and its parameter list in formatter
- [`KT-31881`](https://youtrack.jetbrains.com/issue/KT-31881) Redundant indent for single-line comments inside lamdba
- [`KT-32277`](https://youtrack.jetbrains.com/issue/KT-32277) Space before by delegate keyword on property is not formatted
- [`KT-32324`](https://youtrack.jetbrains.com/issue/KT-32324) Formatter doesn't insert space after safe cast operator `as?`
- [`KT-33553`](https://youtrack.jetbrains.com/issue/KT-33553) Formater does not wrap function chained expression body despite "chained function calls" settings
- [`KT-34049`](https://youtrack.jetbrains.com/issue/KT-34049) Formatter breaks string inside template expression with elvis operator
- [`KT-35093`](https://youtrack.jetbrains.com/issue/KT-35093) Formatter inserts empty line between single-line declarations in presence of annotation
- [`KT-35199`](https://youtrack.jetbrains.com/issue/KT-35199) Wrong formatting for lambdas in chain calls

### IDE. Completion

#### Fixes

- [`KT-15286`](https://youtrack.jetbrains.com/issue/KT-15286) Support import auto-completion for extension functions declared in objects
- [`KT-23026`](https://youtrack.jetbrains.com/issue/KT-23026) Code completion: Incorrect `const` in class declaration line
- [`KT-23834`](https://youtrack.jetbrains.com/issue/KT-23834) Code completion and auto import do not suggest extension that differs from member only in type parameter
- [`KT-25732`](https://youtrack.jetbrains.com/issue/KT-25732) `null` keyword should have priority in completion sort
- [`KT-29840`](https://youtrack.jetbrains.com/issue/KT-29840) `const` is suggested inside the class body, despite it's illegal
- [`KT-29926`](https://youtrack.jetbrains.com/issue/KT-29926) Suggest lambda parameter names in IDE to improve DSL adoption
- [`KT-31762`](https://youtrack.jetbrains.com/issue/KT-31762) Completion: Parameter name is suggested instead of enum entry in entry constructor
- [`KT-32615`](https://youtrack.jetbrains.com/issue/KT-32615) PIEAE for smart completion of anonymous function with importing name inside of function
- [`KT-33979`](https://youtrack.jetbrains.com/issue/KT-33979) No completion for functions from nested objects
- [`KT-34150`](https://youtrack.jetbrains.com/issue/KT-34150) No completion for object methods that override something
- [`KT-34386`](https://youtrack.jetbrains.com/issue/KT-34386) Typo in Kotlin arg postfix completion
- [`KT-34414`](https://youtrack.jetbrains.com/issue/KT-34414) Completion works differently for suspend and regular lambda functions
- [`KT-34644`](https://youtrack.jetbrains.com/issue/KT-34644) Code completion list sorting: do not put method before "return" keyword
- [`KT-35042`](https://youtrack.jetbrains.com/issue/KT-35042) Selecting completion variant works differently for suspend and regular lambda parameter
- [`KT-36306`](https://youtrack.jetbrains.com/issue/KT-36306) Code completion inlines content of FQN class if completion called in string

### IDE. Debugger

#### Fixes

- [`KT-12242`](https://youtrack.jetbrains.com/issue/KT-12242) Breakpoint in a class is not hit if the class was first accessed in Evaluate Expression
- [`KT-16277`](https://youtrack.jetbrains.com/issue/KT-16277) Can't set breakpoint for object construction
- [`KT-20342`](https://youtrack.jetbrains.com/issue/KT-20342) Step Over jumps to wrong position (KotlinUFile)
- [`KT-30909`](https://youtrack.jetbrains.com/issue/KT-30909) "Kotlin variables" button looks inconsistent with panel style
- [`KT-32704`](https://youtrack.jetbrains.com/issue/KT-32704) ISE "Descriptor can be left only if it is last" on calling function with expression body inside Evaluate Expression window
- [`KT-32736`](https://youtrack.jetbrains.com/issue/KT-32736) Evaluate Expression on statement makes error or shows nothing
- [`KT-32741`](https://youtrack.jetbrains.com/issue/KT-32741) "Anonymous functions with names are prohibited" on evaluating functions in Expression mode
- [`KT-33303`](https://youtrack.jetbrains.com/issue/KT-33303) "Smart step into" doesn't work for library declarations
- [`KT-33304`](https://youtrack.jetbrains.com/issue/KT-33304) Can't put a breakpoint to the first line in file
- [`KT-33728`](https://youtrack.jetbrains.com/issue/KT-33728) Smart Step Into doesn't work for @InlineOnly functions
- [`KT-35316`](https://youtrack.jetbrains.com/issue/KT-35316) IndexNotReadyException on function breakpoint

### IDE. Folding

- [`KT-6316`](https://youtrack.jetbrains.com/issue/KT-6316) Folding of multiline functions which don't have curly braces (expression-body functions)

### IDE. Gradle Integration

- [`KT-35442`](https://youtrack.jetbrains.com/issue/KT-35442) KotlinMPPGradleModelBuilder shows warnings on import because it can't find  a not existing directory

### IDE. Gradle. Script

- [`KT-31976`](https://youtrack.jetbrains.com/issue/KT-31976) Adding a space in build.gradle.kts leads to 'Gradle projects need to be imported' notification
- [`KT-34441`](https://youtrack.jetbrains.com/issue/KT-34441) *.gradle.kts: load all scripts configuration at project import
- [`KT-34442`](https://youtrack.jetbrains.com/issue/KT-34442) *.gradle.kts: avoid just-in-case script configuration request to Gradle
- [`KT-34530`](https://youtrack.jetbrains.com/issue/KT-34530) Equal duplicate script definitions are listed three times in Preferences
- [`KT-34740`](https://youtrack.jetbrains.com/issue/KT-34740) Implement completion for implicit receivers in scripts with new scripting API
- [`KT-34795`](https://youtrack.jetbrains.com/issue/KT-34795) Gradle Kotlin DSL new project template: don't use `setUrl` syntax in `settings.gradle.kts` `pluginManagement` block
- [`KT-35096`](https://youtrack.jetbrains.com/issue/KT-35096) Duplicated “Kotlin Script” definition for Gradle/Kotlin projects
- [`KT-35149`](https://youtrack.jetbrains.com/issue/KT-35149) build.graldle.kts settings importing: configuration for buildSrc/prepare-deps/build.gradle.kts not loaded
- [`KT-35205`](https://youtrack.jetbrains.com/issue/KT-35205) *.gradle.kts: avoid just-in-case script configuration request to Gradle while loading from FS
- [`KT-35563`](https://youtrack.jetbrains.com/issue/KT-35563) Track script modifications between IDE restarts

### IDE. Hints. Parameter Info

- [`KT-34992`](https://youtrack.jetbrains.com/issue/KT-34992) UI Freeze: Show parameter info leads to freezes

### IDE. Inspections and Intentions

#### New Features

- [`KT-8478`](https://youtrack.jetbrains.com/issue/KT-8478) Make 'Add parameter to function' quick fix work to parameters other than last
- [`KT-12073`](https://youtrack.jetbrains.com/issue/KT-12073) Report IDE inspection warning on pointless unary operators on numbers
- [`KT-18536`](https://youtrack.jetbrains.com/issue/KT-18536) Provide proper quick fix for accidental override error
- [`KT-34218`](https://youtrack.jetbrains.com/issue/KT-34218) Merge 'else if' intention
- [`KT-36018`](https://youtrack.jetbrains.com/issue/KT-36018) 'Missing visibility' and 'missing explicit return type' compiler and IDE diagnostics for explicit API mode

#### Fixes

- [`KT-17659`](https://youtrack.jetbrains.com/issue/KT-17659) Cannot access internal Kotlin declaration from Java test code within the same module
- [`KT-25271`](https://youtrack.jetbrains.com/issue/KT-25271) "Remove redundant '.let' call" may introduce expression side effects several times
- [`KT-29737`](https://youtrack.jetbrains.com/issue/KT-29737) "Make internal/private/protected" intention works for either `expect` or `actual` side
- [`KT-31967`](https://youtrack.jetbrains.com/issue/KT-31967) Typo in inspection name: "'+=' create new list under the hood"
- [`KT-32582`](https://youtrack.jetbrains.com/issue/KT-32582) Ambiguous message for [AMBIGUOUS_ACTUALS] error (master)
- [`KT-33109`](https://youtrack.jetbrains.com/issue/KT-33109) "Add constructor parameters" quick fix should add default parameters from super class
- [`KT-33123`](https://youtrack.jetbrains.com/issue/KT-33123) False positive "Redundant qualifier name" with inner class as constructor parameter for outer
- [`KT-33297`](https://youtrack.jetbrains.com/issue/KT-33297) Improve parameter name in `Add parameter to constructor` quick fix
- [`KT-33526`](https://youtrack.jetbrains.com/issue/KT-33526) False positive "Redundant qualifier name" with enum constant initialized with companion object field
- [`KT-33580`](https://youtrack.jetbrains.com/issue/KT-33580) False positive "Redundant visibility modifier" overriding property with protected set visibility
- [`KT-33771`](https://youtrack.jetbrains.com/issue/KT-33771) False positive "Redundant Companion reference" with Java synthetic property and same-named object property
- [`KT-33796`](https://youtrack.jetbrains.com/issue/KT-33796) INVISIBLE_SETTER: quick fix "Make '<set-attribute>' public" does not remove redundant setter
- [`KT-33902`](https://youtrack.jetbrains.com/issue/KT-33902) False positive for "Remove explicit type specification" with type alias as return type
- [`KT-33933`](https://youtrack.jetbrains.com/issue/KT-33933) "Create expect" quick fix generates the declaration in a default source set even if an alternative is chosen
- [`KT-34078`](https://youtrack.jetbrains.com/issue/KT-34078) ReplaceWith does not work if replacement is fun in companion object
- [`KT-34203`](https://youtrack.jetbrains.com/issue/KT-34203) 'Add constructor parameter' fix does not add generics
- [`KT-34297`](https://youtrack.jetbrains.com/issue/KT-34297) "Add 'replaceWith' argument" inserts positional instead of named argument
- [`KT-34325`](https://youtrack.jetbrains.com/issue/KT-34325) "Control flow with empty body" inspection should not report ifs with comments
- [`KT-34411`](https://youtrack.jetbrains.com/issue/KT-34411) Create expect/actual quick fix: focus is lost in the editor (193 IDEA)
- [`KT-34432`](https://youtrack.jetbrains.com/issue/KT-34432) Replace with safe call intention inserts redundant elvis operator
- [`KT-34603`](https://youtrack.jetbrains.com/issue/KT-34603) "Remove redundant '.let' call" false negative for reference expression
- [`KT-34694`](https://youtrack.jetbrains.com/issue/KT-34694) "Terminate preceding call with semicolon" breaks lambda formatting
- [`KT-34784`](https://youtrack.jetbrains.com/issue/KT-34784) "Indent raw string" intention: do not suggest in const
- [`KT-34894`](https://youtrack.jetbrains.com/issue/KT-34894) Action "Add not-null asserted (!!) call" doesn't fix error for properties with omitted `this`
- [`KT-35022`](https://youtrack.jetbrains.com/issue/KT-35022) Quickfix "change to var" doesn't remove `const` modifier
- [`KT-35208`](https://youtrack.jetbrains.com/issue/KT-35208) NPE from PerModulePackageCacheService
- [`KT-35242`](https://youtrack.jetbrains.com/issue/KT-35242) Text-range based inspection range shifts wrongly due to incremental analysis of whitespace and comments
- [`KT-35288`](https://youtrack.jetbrains.com/issue/KT-35288) False positive "Remove braces from 'when' entry" in 'when' expression which returns lambda
- [`KT-35837`](https://youtrack.jetbrains.com/issue/KT-35837) Editing Introduce import alias does not affect KDoc
- [`KT-36020`](https://youtrack.jetbrains.com/issue/KT-36020) Intention 'Add public modifier' is not available for highlighted declaration in explicit api mode
- [`KT-36021`](https://youtrack.jetbrains.com/issue/KT-36021) KDoc shouldn't be highlighted on 'visibility must be specified' warning in explicit api mode
- [`KT-36307`](https://youtrack.jetbrains.com/issue/KT-36307) False positive "Remove redundant '.let' call" for nested lambda change scope reference

### IDE. Multiplatform

- [`KT-33321`](https://youtrack.jetbrains.com/issue/KT-33321) In IDE, actuals of intermediate test source set are incorrectly matched against parent main source-set (not test one)

### IDE. Navigation

- [`KT-30736`](https://youtrack.jetbrains.com/issue/KT-30736) References for import alias from kotlin library not found using ReferencesSearch.search
- [`KT-35310`](https://youtrack.jetbrains.com/issue/KT-35310) PIEAE: "During querying provider Icon preview" at ClsJavaCodeReferenceElementImpl.multiResolve() on navigation to Kotlin declaration

### IDE. Refactorings

#### Performance Improvements

- [`KT-24122`](https://youtrack.jetbrains.com/issue/KT-24122) Long pauses with "removing redundant imports" dialog on rename refactoring for IDEA Kotlin Plugin

#### Fixes

- [`KT-18191`](https://youtrack.jetbrains.com/issue/KT-18191) Refactor / Copy multiple files/classes: package statements are not updated
- [`KT-18539`](https://youtrack.jetbrains.com/issue/KT-18539) Default implement fun/property text shouldn't contain scary comment
- [`KT-28607`](https://youtrack.jetbrains.com/issue/KT-28607) Extract/Introduce variable fails if caret is just after expression
- [`KT-32514`](https://youtrack.jetbrains.com/issue/KT-32514) Moving file in with 'search for references' inlines contents in referred source code
- [`KT-32601`](https://youtrack.jetbrains.com/issue/KT-32601) Introduce variable in unformatted lambda causes PIEAE
- [`KT-32999`](https://youtrack.jetbrains.com/issue/KT-32999) Renaming parameter does not rename usage in named argument in a different file
- [`KT-33372`](https://youtrack.jetbrains.com/issue/KT-33372) Rename resource cause its content to be replaced
- [`KT-34415`](https://youtrack.jetbrains.com/issue/KT-34415) Refactor > Change signature of an overridden actual function from a platform class: "org.jetbrains.kotlin.descriptors.InvalidModuleException: Accessing invalid module descriptor"
- [`KT-34419`](https://youtrack.jetbrains.com/issue/KT-34419) Refactor > Change signature > add a function parameter: "org.jetbrains.kotlin.descriptors.InvalidModuleException: Accessing invalid module descriptor"
- [`KT-34459`](https://youtrack.jetbrains.com/issue/KT-34459) Change method signature with unresolved lambda type leads to error
- [`KT-34971`](https://youtrack.jetbrains.com/issue/KT-34971) Refactor / Copy for declarations from different sources throws IAE: "unexpected element" at CopyFilesOrDirectoriesHandler.getCommonParentDirectory()
- [`KT-35689`](https://youtrack.jetbrains.com/issue/KT-35689) Change Signature:  "InvalidModuleException: Accessing invalid module descriptor" on attempt to change receiver type of a member abstract function
- [`KT-35903`](https://youtrack.jetbrains.com/issue/KT-35903) Change Signature refactoring crashes by InvalidModuleException on simplest examples

### IDE. Run Configurations

- [`KT-34632`](https://youtrack.jetbrains.com/issue/KT-34632) Kotlin/JS: Can not run single test method
- [`KT-35038`](https://youtrack.jetbrains.com/issue/KT-35038) Running a test in a multi-module MPP project via IntelliJ Idea gutter action produces incorrect Gradle Run configuration

### IDE. Script

- [`KT-34688`](https://youtrack.jetbrains.com/issue/KT-34688) Many "scanning dependencies for script definitions progresses at the same time
- [`KT-35886`](https://youtrack.jetbrains.com/issue/KT-35886) UI Freeze: ScriptClassRootsCache.hasNotCachedRoots 25 seconds

### IDE. Tests Support

- [`KT-33787`](https://youtrack.jetbrains.com/issue/KT-33787) IDE tests: Not able to run single test using JUnit

### IDE. Wizards

#### New Features

- [`KT-36043`](https://youtrack.jetbrains.com/issue/KT-36043) Gradle, JS: Add continuous-mode run configuration in New Project Wizard templates

#### Fixes

- [`KT-35584`](https://youtrack.jetbrains.com/issue/KT-35584) New Project wizard: module names restrictions are too strong with no reason
- [`KT-35690`](https://youtrack.jetbrains.com/issue/KT-35690) New Project wizard: artifact and group fields are mixed up
- [`KT-35694`](https://youtrack.jetbrains.com/issue/KT-35694) New Project wizard creates settings.gradle.kts even for Groovy DSL
- [`KT-35695`](https://youtrack.jetbrains.com/issue/KT-35695) New Project wizard uses `kotlin ()` call for dependencies in non-MPP Groovy-DSL JVM project
- [`KT-35710`](https://youtrack.jetbrains.com/issue/KT-35710) New Project wizard creates non-Java source/resource roots for Kotlin/JVM JPS
- [`KT-35711`](https://youtrack.jetbrains.com/issue/KT-35711) New Project wizard: Maven: "Kotlin Test framework" template adds wrong dependency
- [`KT-35712`](https://youtrack.jetbrains.com/issue/KT-35712) New Project wizard: source root templates: switching focus from root reverts custom settings to default
- [`KT-35713`](https://youtrack.jetbrains.com/issue/KT-35713) New Project wizard: custom settings for project name, artifact and group ID are reverted to default on Previous/Next
- [`KT-35715`](https://youtrack.jetbrains.com/issue/KT-35715) New Project wizard: Maven: custom repository required for template (ktor) is not added to pom.xml
- [`KT-35718`](https://youtrack.jetbrains.com/issue/KT-35718) New Project wizard: Gradle: ktor: not existing repository is added
- [`KT-35719`](https://youtrack.jetbrains.com/issue/KT-35719) New Project wizard: Multiplatform library: entryPoint specifies not existing class name
- [`KT-35720`](https://youtrack.jetbrains.com/issue/KT-35720) New Project wizard: Multiplatform library: Groovy DSL: improve the script for nativeTarget calculation

### JS. Tools

- [`KT-35198`](https://youtrack.jetbrains.com/issue/KT-35198) Kotlin/JS: with references to NPM/.kjsm library DCE produces invalid resulting JavaScript
- [`KT-36349`](https://youtrack.jetbrains.com/issue/KT-36349) KJS: JS DCE use file's timestamps to compare files. It conflicts with gradle configuration 'preserveFileTimestamps = false'.

### JavaScript

- [`KT-30517`](https://youtrack.jetbrains.com/issue/KT-30517) KJS generates wrong call for secondary constructor w/ default argument when class inherited by object expression
- [`KT-33149`](https://youtrack.jetbrains.com/issue/KT-33149) Lambda is not a subtype of `Function<*>`
- [`KT-33327`](https://youtrack.jetbrains.com/issue/KT-33327) JS IR backend works incorrectly when function and property have the same name
- [`KT-33334`](https://youtrack.jetbrains.com/issue/KT-33334) JS IR backend can't access private var from internal inline function

### Libraries

#### New Features

- [`KT-7657`](https://youtrack.jetbrains.com/issue/KT-7657) `scan()` functions for Sequences and Iterable
- [`KT-15363`](https://youtrack.jetbrains.com/issue/KT-15363) Builder functions for basic containers
- [`KT-21327`](https://youtrack.jetbrains.com/issue/KT-21327) Add Deque & ArrayDeque to Kotlin standard library
- [`KT-33069`](https://youtrack.jetbrains.com/issue/KT-33069) StringBuilder common functions
- [`KT-33761`](https://youtrack.jetbrains.com/issue/KT-33761) reduceOrNull: reduce that doesn't throw on empty input
- [`KT-35347`](https://youtrack.jetbrains.com/issue/KT-35347) Create method Collection.randomOrNull()
- [`KT-36118`](https://youtrack.jetbrains.com/issue/KT-36118) Provide API for subtyping relationship between CoroutineContextKey and elements associated with this key

#### Fixes

- [`KT-17544`](https://youtrack.jetbrains.com/issue/KT-17544) JS: document array destructuring behavior
- [`KT-33141`](https://youtrack.jetbrains.com/issue/KT-33141) UnderMigration annotation is defined in Kotlin, but supposed to be used from Java
- [`KT-33447`](https://youtrack.jetbrains.com/issue/KT-33447) runCatching docs suggests it catches exceptions but it catches throwables
- [`KT-35175`](https://youtrack.jetbrains.com/issue/KT-35175) Clarify documentation for XorWowRandom
- [`KT-35299`](https://youtrack.jetbrains.com/issue/KT-35299) Float.rangeTo(Float): ClosedFloatingPointRange<Float> doesn't exist in the common stdlib.

### Reflection

- [`KT-14720`](https://youtrack.jetbrains.com/issue/KT-14720) Move KClass.cast / KClass.isInstance into kotlin-stdlib
- [`KT-33646`](https://youtrack.jetbrains.com/issue/KT-33646) Make KClass.simpleName available on JVM without kotlin-reflect.jar
- [`KT-34586`](https://youtrack.jetbrains.com/issue/KT-34586) Make KClass.qualifiedName available on JVM without kotlin-reflect.jar

### Tools. CLI

- [`KT-29933`](https://youtrack.jetbrains.com/issue/KT-29933) Support relative paths in -Xfriend-paths
- [`KT-34119`](https://youtrack.jetbrains.com/issue/KT-34119) Add JVM target bytecode version 13
- [`KT-34240`](https://youtrack.jetbrains.com/issue/KT-34240) CLI kotlinc help -include-runtime has redundant space

### Tools. Gradle

- [`KT-25206`](https://youtrack.jetbrains.com/issue/KT-25206) Delegate build/run to gradle results regularly in cannot delete proto.tab.value.s
- [`KT-35181`](https://youtrack.jetbrains.com/issue/KT-35181) Make kapt Gradle tasks compatible with instant execution

### Tools. Gradle. JS

#### New Features

- [`KT-30659`](https://youtrack.jetbrains.com/issue/KT-30659) Run NodeJS debugger when running debug gradle task from IDEA
- [`KT-32129`](https://youtrack.jetbrains.com/issue/KT-32129) Karma: support debugging
- [`KT-32179`](https://youtrack.jetbrains.com/issue/KT-32179) DSL: allow npm in root dependencies section of single platform projects
- [`KT-32283`](https://youtrack.jetbrains.com/issue/KT-32283) Webpack: Allow to configure Webpack mode
- [`KT-32323`](https://youtrack.jetbrains.com/issue/KT-32323) Webpack: support optimized webpack bundle
- [`KT-32785`](https://youtrack.jetbrains.com/issue/KT-32785) Webpack: Asset bundling in distributions folder

#### Fixes

- [`KT-30917`](https://youtrack.jetbrains.com/issue/KT-30917) Tests: Inner classes mapped incorrectly in short test fail message
- [`KT-31894`](https://youtrack.jetbrains.com/issue/KT-31894) ithout Kotlin sources `browserRun` makes the build fail
- [`KT-34946`](https://youtrack.jetbrains.com/issue/KT-34946) DCE require some/all transitive dependencies. Invalid compilation result otherwise
- [`KT-35318`](https://youtrack.jetbrains.com/issue/KT-35318) IllegalStateException on clean build with `left-pad` package and generateKotlinExternals=true
- [`KT-35428`](https://youtrack.jetbrains.com/issue/KT-35428) Gradle dependency with invalid package.json
- [`KT-35598`](https://youtrack.jetbrains.com/issue/KT-35598) Actualize NPM dependencies in 1.3.70
- [`KT-35599`](https://youtrack.jetbrains.com/issue/KT-35599) Actualize Node and Yarn versions in 1.3.70
- [`KT-36714`](https://youtrack.jetbrains.com/issue/KT-36714) Webpack output doesn't consider Kotlin/JS exports (library mode)

### Tools. Gradle. Multiplatform

- [`KT-31570`](https://youtrack.jetbrains.com/issue/KT-31570) Deprecate Kotlin 1.2.x MPP Gradle plugins
- [`KT-35126`](https://youtrack.jetbrains.com/issue/KT-35126) Support Gradle instant execution for Kotlin/JVM and Android tasks
- [`KT-36469`](https://youtrack.jetbrains.com/issue/KT-36469) Dependencies with compileOnly scope are not visible in Gradle build of MPP with source set hierarchies support

### Tools. Gradle. Native

- [`KT-29395`](https://youtrack.jetbrains.com/issue/KT-29395) Allow setting custom destination directory for Kotlin/Native binaries
- [`KT-31542`](https://youtrack.jetbrains.com/issue/KT-31542) Allow changing a name of a framework created by CocoaPods Gradle plugin
- [`KT-32750`](https://youtrack.jetbrains.com/issue/KT-32750) Support subspecs in CocoaPods plugin
- [`KT-35352`](https://youtrack.jetbrains.com/issue/KT-35352) MPP Gradle plugin: Support exporting K/N dependencies to shared and static libraries
- [`KT-35934`](https://youtrack.jetbrains.com/issue/KT-35934) Gradle MPP plugin: Spaces are not escaped in K/N compiler parameters
- [`KT-35958`](https://youtrack.jetbrains.com/issue/KT-35958) Kotlin/Native: Gradle: compiling test sources with no sources in main roots halts the Gradle daemon

### Tools. J2K

#### New Features

- [`KT-21811`](https://youtrack.jetbrains.com/issue/KT-21811) Convert string concatenation into multiline string

#### Performance Improvements

- [`KT-16774`](https://youtrack.jetbrains.com/issue/KT-16774) UI Freeze: J2K, PlainTextPasteImportResolve: IDEA freezes for 10+ seconds when copy-pasting Java code from external source to Kotlin file

#### Fixes

- [`KT-18001`](https://youtrack.jetbrains.com/issue/KT-18001) Multi-line comments parsed inside Kdoc comments
- [`KT-19574`](https://youtrack.jetbrains.com/issue/KT-19574) Code with inferred default parameters and parameter vs property name clashes
- [`KT-32551`](https://youtrack.jetbrains.com/issue/KT-32551) Non-canonical modifiers order inspection is not applied during convertion of inner super class
- [`KT-33637`](https://youtrack.jetbrains.com/issue/KT-33637) Property with getter is converted into incompailable code if backing field was not generated
- [`KT-34673`](https://youtrack.jetbrains.com/issue/KT-34673) First comment in function (if, for, while) block is moved to declaration line of block
- [`KT-35081`](https://youtrack.jetbrains.com/issue/KT-35081) Invalid code with block comment (Javadoc)
- [`KT-35152`](https://youtrack.jetbrains.com/issue/KT-35152) J2K breaks formatting by moving subsequent single line comments to first column
- [`KT-35395`](https://youtrack.jetbrains.com/issue/KT-35395) UninitializedPropertyAccessException through `org.jetbrains.kotlin.nj2k.conversions.ImplicitCastsConversion` when anonymous inner class passes itself as argument to outer method
- [`KT-35431`](https://youtrack.jetbrains.com/issue/KT-35431) "Invalid PSI class com.intellij.psi.PsiLambdaParameterType" with lambda argument in erroneous code
- [`KT-35476`](https://youtrack.jetbrains.com/issue/KT-35476) Expression with compound assignment logical operator is changing operator precedence without parentheses
- [`KT-35478`](https://youtrack.jetbrains.com/issue/KT-35478) Single line comment before constructor results in wrong code
- [`KT-35739`](https://youtrack.jetbrains.com/issue/KT-35739) Line break is not inserted for private property getter
- [`KT-35831`](https://youtrack.jetbrains.com/issue/KT-35831) Error on inserting plain text with `\r` char

### Tools. Scripts

- [`KT-34274`](https://youtrack.jetbrains.com/issue/KT-34274) Add support for `@CompilerOptions` annotation in `kotlin-main-kts`
- [`KT-34716`](https://youtrack.jetbrains.com/issue/KT-34716) Implement default cache in main-kts
- [`KT-34893`](https://youtrack.jetbrains.com/issue/KT-34893) Update apache ivy version in kotlin-main-kts
- [`KT-35413`](https://youtrack.jetbrains.com/issue/KT-35413) Implement "evaluate expression" command line parameter and functionality in the JVM cli compiler
- [`KT-35415`](https://youtrack.jetbrains.com/issue/KT-35415) Implement script and expression evaluation in the `kotlin` runner
- [`KT-35416`](https://youtrack.jetbrains.com/issue/KT-35416) load main-kts script definition by default in the jvm compiler, if the jar is available

### Tools. kapt

- [`KT-30164`](https://youtrack.jetbrains.com/issue/KT-30164) Default field value not transmitted to Java source model for mutable properties
- [`KT-30368`](https://youtrack.jetbrains.com/issue/KT-30368) Deprecated information not transmitted to Java source model
- [`KT-32832`](https://youtrack.jetbrains.com/issue/KT-32832) Turn worker API on by default
- [`KT-33617`](https://youtrack.jetbrains.com/issue/KT-33617) Java 9+: "IllegalStateException: Should not be called!"
- [`KT-34167`](https://youtrack.jetbrains.com/issue/KT-34167) Annotation Processor incorrectly marked as isolating causes full rebuild silently.
- [`KT-34258`](https://youtrack.jetbrains.com/issue/KT-34258) `kapt.incremental.apt=true` makes build failed after moving annotation processor files
- [`KT-34569`](https://youtrack.jetbrains.com/issue/KT-34569) Kapt doesn't handle methods with both the @Override annotation and `override` keyword
- [`KT-36113`](https://youtrack.jetbrains.com/issue/KT-36113) Enabling kapt.incremental.apt makes remote build cache miss via `classpathStructure$kotlin_gradle_plugin` property


## 1.3.61

### Compiler

- [`KT-35004`](https://youtrack.jetbrains.com/issue/KT-35004) "AssertionError: Unsigned type expected" in `when` range check in extension on unsigned type

### IDE

- [`KT-34923`](https://youtrack.jetbrains.com/issue/KT-34923) [Regression] KtUltraLightMethod.hasModifierProperty("native") returns false for external Kotlin functions


### Libraries

- [`KT-21445`](https://youtrack.jetbrains.com/issue/KT-21445) W3C DOM Touch events and interfaces are incomplete / missing

### Tools. Compiler Plugins

- [`KT-34991`](https://youtrack.jetbrains.com/issue/KT-34991) kotlinx.serialization: False warning "Explicit @Serializable annotation on enum class is required when @SerialName or @SerialInfo annotations are used on its members"

### Tools. J2K

- [`KT-34987`](https://youtrack.jetbrains.com/issue/KT-34987) New J2K converter: @NotNull annotations are not removed after converting java code to kotlin
- [`KT-35074`](https://youtrack.jetbrains.com/issue/KT-35074) J2K: No auto conversion in 'for' loop with multiple init variables

## 1.3.60

### Android

- [`KT-27170`](https://youtrack.jetbrains.com/issue/KT-27170) Android lint tasks fails in Gradle with MPP dependency

### Compiler

#### New Features

- [`KT-31230`](https://youtrack.jetbrains.com/issue/KT-31230) Refine rules for allowed Array-based class literals on different platforms: allow `Array::class` everywhere, disallow `Array<...>::class` on non-JVM
- [`KT-33413`](https://youtrack.jetbrains.com/issue/KT-33413) Allow 'break' and 'continue' in 'when' statement to point to innermost surrounding loop

#### Performance Improvements

- [`KT-14513`](https://youtrack.jetbrains.com/issue/KT-14513) Suboptimal compilation of lazy delegated properties with inline getValue
- [`KT-28507`](https://youtrack.jetbrains.com/issue/KT-28507) Extra InlineMarker.mark invocation in generated suspending function bytecode
- [`KT-29229`](https://youtrack.jetbrains.com/issue/KT-29229) Intrinsify 'in' operator for unsigned integer ranges

#### Fixes

- [`KT-7354`](https://youtrack.jetbrains.com/issue/KT-7354) Confusing error message when trying to access package local java class
- [`KT-9310`](https://youtrack.jetbrains.com/issue/KT-9310) Don't make interface and DefaultImpls methods synchronized
- [`KT-11430`](https://youtrack.jetbrains.com/issue/KT-11430) Improve diagnostics for dangling lambdas
- [`KT-16526`](https://youtrack.jetbrains.com/issue/KT-16526) Provide better error explanation when one tries to delegate var to read-only delegate
- [`KT-20258`](https://youtrack.jetbrains.com/issue/KT-20258) Improve annotation rendering in diagnostic messages
- [`KT-22275`](https://youtrack.jetbrains.com/issue/KT-22275) Unify exceptions from null checks
- [`KT-27503`](https://youtrack.jetbrains.com/issue/KT-27503) Private functions uses from inside of suspendCoroutine go though accessor
- [`KT-28938`](https://youtrack.jetbrains.com/issue/KT-28938) Coroutines tail-call optimization does not work for generic returns that had instantiated to Unit
- [`KT-29385`](https://youtrack.jetbrains.com/issue/KT-29385) "AnalyzerException: Expected an object reference, but found I" for EXACTLY_ONCE non-inline contract with captured class constructor parameter
- [`KT-29510`](https://youtrack.jetbrains.com/issue/KT-29510) "RuntimeException: Trying to access skipped parameter" with EXACTLY_ONCE contract and nested call of crossinline lambda
- [`KT-29614`](https://youtrack.jetbrains.com/issue/KT-29614) java.lang.VerifyError: Bad type on operand stack  - in inlining,  crossinline in constructor with EXACTLY_ONCE contract
- [`KT-30275`](https://youtrack.jetbrains.com/issue/KT-30275) Get rid of session in FirElement
- [`KT-30744`](https://youtrack.jetbrains.com/issue/KT-30744) Invoking Interface Static Method from Extension method generates incorrect jvm bytecode
- [`KT-30785`](https://youtrack.jetbrains.com/issue/KT-30785) Equality comparison of inline classes results in boxing
- [`KT-32217`](https://youtrack.jetbrains.com/issue/KT-32217) FIR: support delegated properties resolve
- [`KT-32433`](https://youtrack.jetbrains.com/issue/KT-32433) NI: UninferredParameterTypeConstructor with class property
- [`KT-32587`](https://youtrack.jetbrains.com/issue/KT-32587) NI: Type mismatch "String" vs "String" in IDE on generic .invoke on generic delegated property
- [`KT-32689`](https://youtrack.jetbrains.com/issue/KT-32689) Shuffled line numbers in suspend functions with elvis operator
- [`KT-32851`](https://youtrack.jetbrains.com/issue/KT-32851) Constraint for callable reference argument doesn't take into account use-site variance
- [`KT-32864`](https://youtrack.jetbrains.com/issue/KT-32864) The line number of assertFailsWith in suspending function is lost
- [`KT-33125`](https://youtrack.jetbrains.com/issue/KT-33125) NI: "Rewrite at slice INDEXED_LVALUE_SET" with Mutable Map set index operator inside "@kotlin.BuilderInference" block
- [`KT-33414`](https://youtrack.jetbrains.com/issue/KT-33414) 'java.lang.AssertionError: int type expected, but null was found in basic frames' in kotlin-io while building library train
- [`KT-33421`](https://youtrack.jetbrains.com/issue/KT-33421) Please make NOTHING_TO_INLINE warning shorter
- [`KT-33504`](https://youtrack.jetbrains.com/issue/KT-33504) EA-209823 - ISE: ProjectResolutionFacade$computeModuleResolverProvider$resolverForProject$$.invoke: Can't find builtIns by key CacheKeyBySdk
- [`KT-33572`](https://youtrack.jetbrains.com/issue/KT-33572) Scripting import with implicit receiver doesn't work
- [`KT-33821`](https://youtrack.jetbrains.com/issue/KT-33821) Compiler should not rely on the default locale when generating boxing for suspend functions
- [`KT-18541`](https://youtrack.jetbrains.com/issue/KT-18541) Prohibit "tailrec" modifier on open functions
- [`KT-19844`](https://youtrack.jetbrains.com/issue/KT-19844) Do not render type annotations on symbols rendered in diagnostic messages
- [`KT-24913`](https://youtrack.jetbrains.com/issue/KT-24913) KotlinFrontEndException with local class in init of generic class
- [`KT-28940`](https://youtrack.jetbrains.com/issue/KT-28940) Concurrency issue for lazy values with the post-computation phase
- [`KT-31540`](https://youtrack.jetbrains.com/issue/KT-31540) Change initialization order of default values for tail recursive optimized functions

### Docs & Examples

- [`KT-26212`](https://youtrack.jetbrains.com/issue/KT-26212) Update docs to explicitly mention that union is opposite of intersect
- [`KT-34086`](https://youtrack.jetbrains.com/issue/KT-34086) Website, stdlib api docs: unresolved link jvm/stdlib/kotlin.text/-charsets/Charset

### IDE

#### Fixes

- [`KT-8581`](https://youtrack.jetbrains.com/issue/KT-8581) 'Move Statement' doesn't work for statement finished by semicolon
- [`KT-9204`](https://youtrack.jetbrains.com/issue/KT-9204) Shorten references and some other IDE features have problem when package name clash with class name
- [`KT-17993`](https://youtrack.jetbrains.com/issue/KT-17993) Annotations are colored the same as language keywords
- [`KT-21037`](https://youtrack.jetbrains.com/issue/KT-21037) LazyLightClassMemberMatchingError$WrongMatch “Matched :BAR MemberIndex(index=0) to :BAR MemberIndex(index=1) in KtLightClassImpl” after duplicating values inside enum class
- [`KT-23305`](https://youtrack.jetbrains.com/issue/KT-23305) We should be able to see platform-specific errors in common module
- [`KT-23461`](https://youtrack.jetbrains.com/issue/KT-23461) `Move statement up/down` attaches a comment block to the function being moved
- [`KT-26960`](https://youtrack.jetbrains.com/issue/KT-26960) IDE doesn't report `actual` without `expect` placed into a custom platform-agnostic source set
- [`KT-27243`](https://youtrack.jetbrains.com/issue/KT-27243) LazyLightClassMemberMatchingError when overriding hidden member
- [`KT-28404`](https://youtrack.jetbrains.com/issue/KT-28404) Gradle configuration page is missing from a New Project Wizard creation flow for multiplatform templates
- [`KT-30824`](https://youtrack.jetbrains.com/issue/KT-30824) No highlighting of declaration/usage of function with functional-type (lambda) parameter on its usage
- [`KT-31117`](https://youtrack.jetbrains.com/issue/KT-31117) AssertionError at `CompletionBindingContextProvider._getBindingContext` when typing any character within string with injected Kotlin
- [`KT-31139`](https://youtrack.jetbrains.com/issue/KT-31139) "Override members" on enum inserts semicolon before enum body
- [`KT-31810`](https://youtrack.jetbrains.com/issue/KT-31810) Paste inside indented `.trimIndent()` raw string doesn't respect indentation
- [`KT-32401`](https://youtrack.jetbrains.com/issue/KT-32401) Exceptions while running IDEA in headless mode for building searchable options
- [`KT-32543`](https://youtrack.jetbrains.com/issue/KT-32543) UltraLight support for Kotlin collections.
- [`KT-32544`](https://youtrack.jetbrains.com/issue/KT-32544) Support UltraLight classes for local/anonymous/enum classes
- [`KT-32799`](https://youtrack.jetbrains.com/issue/KT-32799) 2019.2 RC (192.5728.74) Kotlin plugin exception during build searchable options (Directory index may not be queried for default project)
- [`KT-33008`](https://youtrack.jetbrains.com/issue/KT-33008) IDEA does not report in MPP: Upper bound of a type parameter cannot be an array
- [`KT-33316`](https://youtrack.jetbrains.com/issue/KT-33316) Kotlin Facet: make sure the order of allPlatforms value is fixed
- [`KT-33561`](https://youtrack.jetbrains.com/issue/KT-33561) LazyLightClassMemberMatchingError when overloading synthetic member
- [`KT-33584`](https://youtrack.jetbrains.com/issue/KT-33584) Make kotlin light classes return no-arg constructor when no-arg (or jpa) compiler plugin is enabled
- [`KT-33775`](https://youtrack.jetbrains.com/issue/KT-33775) please remove usages of org.intellij.plugins.intelliLang.inject.InjectorUtils#putInjectedFileUserData(com.intellij.lang.injection.MultiHostRegistrar, com.intellij.openapi.util.Key<T>, T) deprecated eons ago
- [`KT-33813`](https://youtrack.jetbrains.com/issue/KT-33813) Poor formatting of 'Selected target platforms' and 'Depends on' in facet settings
- [`KT-33937`](https://youtrack.jetbrains.com/issue/KT-33937) delay() completion from kotlinx.coroutines causes happening of root package in code
- [`KT-33973`](https://youtrack.jetbrains.com/issue/KT-33973) Kotlin objects could abuse idea plugin functionality
- [`KT-34000`](https://youtrack.jetbrains.com/issue/KT-34000) Import quickfix does not work for extension methods from objects
- [`KT-34070`](https://youtrack.jetbrains.com/issue/KT-34070) "No target platforms selected" message for commonTest facet at mobile shared library project
- [`KT-34191`](https://youtrack.jetbrains.com/issue/KT-34191) Since-build .. until-build compatibility ranges are the same for 192 and 193 IDE plugins
- [`KT-21153`](https://youtrack.jetbrains.com/issue/KT-21153) IDE: string template + annotation usage: ISE: "Couldn't get delegate" at LightClassDataHolderKt.findDelegate()
- [`KT-33352`](https://youtrack.jetbrains.com/issue/KT-33352) "KotlinExceptionWithAttachments: Couldn't get delegate for class" on nested class/object
- [`KT-34042`](https://youtrack.jetbrains.com/issue/KT-34042) "Error loading Kotlin facets. Kotlin facets are not allowed in Kotlin/Native Module" in 192 IDEA
- [`KT-34237`](https://youtrack.jetbrains.com/issue/KT-34237) MPP with Android target: `common*` source sets are not shown as source roots in IDE
- [`KT-33626`](https://youtrack.jetbrains.com/issue/KT-33626) Deadlock with Kotlin LockBasedStorageManager in IDEA commit dialog
- [`KT-34402`](https://youtrack.jetbrains.com/issue/KT-34402) Unresolved reference to Kotlin.test library in CommonTest in Multiplatform project without JVM target
- [`KT-34639`](https://youtrack.jetbrains.com/issue/KT-34639) Multiplatform project with the only (Android) target is incorrectly imported into IDE

### IDE. Completion

- [`KT-10340`](https://youtrack.jetbrains.com/issue/KT-10340) Import completion unable to shorten fq-names when there is a conflict between package name and local identifier
- [`KT-17689`](https://youtrack.jetbrains.com/issue/KT-17689) Code completion for enum typealias doesn't show members
- [`KT-28998`](https://youtrack.jetbrains.com/issue/KT-28998) Slow completion for build.gradle.kts (Kotlin Gradle DSL script)
- [`KT-30996`](https://youtrack.jetbrains.com/issue/KT-30996) DSL extension methods which are not applicable are offered for completion
- [`KT-31902`](https://youtrack.jetbrains.com/issue/KT-31902) Fully qualified name is used for `delay` instead of  import and just method name
- [`KT-33903`](https://youtrack.jetbrains.com/issue/KT-33903) Duplicating completion for imported extensions from companion objects

### IDE. Debugger

- [`KT-10984`](https://youtrack.jetbrains.com/issue/KT-10984) Disallow placing line breakpoints without executable code (changed)
- [`KT-22116`](https://youtrack.jetbrains.com/issue/KT-22116) Support function breakpoints
- [`KT-24408`](https://youtrack.jetbrains.com/issue/KT-24408) @InlineOnly: Misleading status for breakpoints in inline functions
- [`KT-27645`](https://youtrack.jetbrains.com/issue/KT-27645) Debugger breakpoints do not work in suspend function executed in SpringBoot controller (MVC and WebFlux)
- [`KT-32687`](https://youtrack.jetbrains.com/issue/KT-32687) Disallow breakpoints for @InlineOnly function bodies
- [`KT-32813`](https://youtrack.jetbrains.com/issue/KT-32813) Exception on invoking "Smart Step Into"
- [`KT-32830`](https://youtrack.jetbrains.com/issue/KT-32830) NPE on changing class property in Evaluate Expression window
- [`KT-33064`](https://youtrack.jetbrains.com/issue/KT-33064) “Read access is allowed from event dispatch thread or inside read-action only” from KotlinLineBreakpointType.createLineSourcePosition on adding new line before the current one while stopping on breakpoint
- [`KT-11395`](https://youtrack.jetbrains.com/issue/KT-11395) Breakpoint inside lambda argument of InlineOnly function doesn't work

### IDE. Folding

- [`KT-6314`](https://youtrack.jetbrains.com/issue/KT-6314) Folding of "when" construction

### IDE. Gradle

- [`KT-33038`](https://youtrack.jetbrains.com/issue/KT-33038) Package prefix is not imported in non-MPP project
- [`KT-33987`](https://youtrack.jetbrains.com/issue/KT-33987) Serialization exception during importing Kotlin project in IDEA 192
- [`KT-32960`](https://youtrack.jetbrains.com/issue/KT-32960) KotlinMPPGradleModelBuilder takes a long time to process when syncing non-MPP project with IDE
- [`KT-34424`](https://youtrack.jetbrains.com/issue/KT-34424) With Kotlin plugin in Gradle project without Native the IDE fails to start Gradle task: "Kotlin/Native properties file is absent at null/konan/konan.properties"
- [`KT-34256`](https://youtrack.jetbrains.com/issue/KT-34256) Fail to use multiplatform modules with dependsOn with android plugin
- [`KT-34663`](https://youtrack.jetbrains.com/issue/KT-34663) Low performance of MPP 1.2 during import with module-per-source-set enabled

### IDE. Gradle. Script

- [`KT-31766`](https://youtrack.jetbrains.com/issue/KT-31766) Gradle Kotlin DSL new project template: use type-safe model accessors
- [`KT-34463`](https://youtrack.jetbrains.com/issue/KT-34463) New Gradle-based project template misses pluginManagement{} block in EAP branch
- [`KT-31767`](https://youtrack.jetbrains.com/issue/KT-31767) Gradle Kotlin DSL new project template: use settings.gradle.kts

### IDE. Inspections and Intentions

#### New Features

- [`KT-26431`](https://youtrack.jetbrains.com/issue/KT-26431) Quickfix to remove redundant label
- [`KT-28049`](https://youtrack.jetbrains.com/issue/KT-28049) Suggest import quickfix for operator extension functions
- [`KT-29622`](https://youtrack.jetbrains.com/issue/KT-29622) "Move to separate file" intention should also work for sealed class
- [`KT-33178`](https://youtrack.jetbrains.com/issue/KT-33178) Use a new compiler flag -Xinline-classes during enabling the feature via IDEA intention
- [`KT-33586`](https://youtrack.jetbrains.com/issue/KT-33586) "Constructors are not allowed for objects" diagnostic needs quickfix to change object to class

#### Fixes

- [`KT-12291`](https://youtrack.jetbrains.com/issue/KT-12291) Override/Implement Members: better member positioning inside the class
- [`KT-14899`](https://youtrack.jetbrains.com/issue/KT-14899) Quickfix "Create member function" inserts too many semicolons when applied to Enum
- [`KT-15700`](https://youtrack.jetbrains.com/issue/KT-15700) "Convert lambda to reference" does not work with backtick-escaped references
- [`KT-18772`](https://youtrack.jetbrains.com/issue/KT-18772) "Introduce subject to when": don't choose an object or a constant as the subject
- [`KT-21172`](https://youtrack.jetbrains.com/issue/KT-21172) Join declaration and assignment should place the result at the assignment, not at declaration
- [`KT-25697`](https://youtrack.jetbrains.com/issue/KT-25697) `Replace with dot call` quickfix breaks formatting
- [`KT-26635`](https://youtrack.jetbrains.com/issue/KT-26635) An empty line is added after `actual` modifier on "Create actual annotation class..." quick fix applied to annotation if it is annotated with comment
- [`KT-27270`](https://youtrack.jetbrains.com/issue/KT-27270) "Add jar to classpath" quick fix modifies build.gradle of MPP project in a way that fails to be imported
- [`KT-28471`](https://youtrack.jetbrains.com/issue/KT-28471) "Add initializer" quickfix initializes non-null variable with null
- [`KT-28538`](https://youtrack.jetbrains.com/issue/KT-28538) `create expected ...` quick fix illegally creates `expect` member with a usage of a platform-specific type
- [`KT-28549`](https://youtrack.jetbrains.com/issue/KT-28549) Create actual/expect quick fix for class/object doesn't add import for an inherited member
- [`KT-28620`](https://youtrack.jetbrains.com/issue/KT-28620) `Create expect/actual ...` quick fix could save @Test annotation on generation
- [`KT-28740`](https://youtrack.jetbrains.com/issue/KT-28740) AE “2 declarations in var bar: [ERROR : No type, no body]” after applying “Create actual class” quick fix for class with property which has not specified type
- [`KT-28947`](https://youtrack.jetbrains.com/issue/KT-28947) Backing field has created after applying “Create expected class in common module...” intention
- [`KT-30136`](https://youtrack.jetbrains.com/issue/KT-30136) False negative "Redundant explicit 'this'" with local variable
- [`KT-30794`](https://youtrack.jetbrains.com/issue/KT-30794) Quickfix for unchecked cast produces invalid code
- [`KT-31133`](https://youtrack.jetbrains.com/issue/KT-31133) Liveness analysis on enum does not take into account calls to 'values'
- [`KT-31433`](https://youtrack.jetbrains.com/issue/KT-31433) Incorrect "Create expected class..." for class with supertype
- [`KT-31475`](https://youtrack.jetbrains.com/issue/KT-31475) "Create expect..." should delete 'override' modifier
- [`KT-31587`](https://youtrack.jetbrains.com/issue/KT-31587) Redundant `private` modifier before primary constructor after create `actual` class
- [`KT-31921`](https://youtrack.jetbrains.com/issue/KT-31921) "Create expected ..."/"Create actual..." quick fix: `val` and `vararg` modifiers are misordered in the generated `expect`/`actual` declaration
- [`KT-31999`](https://youtrack.jetbrains.com/issue/KT-31999) "Variable declaration could be moved into `when`" inspection suggests to inline expression containing return (throw) statement
- [`KT-32012`](https://youtrack.jetbrains.com/issue/KT-32012) Change parameter type quick fix: Don't use qualified name
- [`KT-32468`](https://youtrack.jetbrains.com/issue/KT-32468) False positive SimplifiableCall "filter call could be simplified to filterIsInstance" with expression body function and explicit return type
- [`KT-32479`](https://youtrack.jetbrains.com/issue/KT-32479) False positive "Redundant overriding method" with derived property and base function starting with `get`, `set` or `is` (Accidental override)
- [`KT-32571`](https://youtrack.jetbrains.com/issue/KT-32571) "Create expect" quick fix incorrectly treats multiplatform stdlib typealiased types as platform-specific ones
- [`KT-32580`](https://youtrack.jetbrains.com/issue/KT-32580) "Remove braces" QF for single-expression function with inferred lambda return type: "ClassCastException: class kotlin.reflect.jvm.internal.KClassImpl cannot be cast to class kotlin.jvm.internal.ClassBasedDeclarationContainer"
- [`KT-32582`](https://youtrack.jetbrains.com/issue/KT-32582) Ambiguous message for [AMBIGUOUS_ACTUALS] error (master)
- [`KT-32586`](https://youtrack.jetbrains.com/issue/KT-32586) "Make member open" quick fix doesn't update all the related actualisations of an expected member
- [`KT-32616`](https://youtrack.jetbrains.com/issue/KT-32616) "To ordinary string literal" doesn't remove indents, newlines and `trimIndent`
- [`KT-32642`](https://youtrack.jetbrains.com/issue/KT-32642) "Create expect" quick fix doesn't warn about a platform-specific annotation applied to the generated member
- [`KT-32650`](https://youtrack.jetbrains.com/issue/KT-32650) "Replace 'if' with 'when'" removes braces from 'if' statement
- [`KT-32694`](https://youtrack.jetbrains.com/issue/KT-32694) "Create expect"/"create actual" quick fix doesn't transfer use-site annotations
- [`KT-32737`](https://youtrack.jetbrains.com/issue/KT-32737) "Create expect" quick fix adds `actual` modifier to an interface function with default implementation without a warning
- [`KT-32768`](https://youtrack.jetbrains.com/issue/KT-32768) "Create expect" quick fix doesn't warn about a local supertype of an `actual` class while generating an expected declaration
- [`KT-32829`](https://youtrack.jetbrains.com/issue/KT-32829) "Add .jar to the classpath" quick fix creates "compile"/"testCompile" dependencies in build.gradle
- [`KT-32972`](https://youtrack.jetbrains.com/issue/KT-32972) No "remove braces" inspection for ${this}
- [`KT-32981`](https://youtrack.jetbrains.com/issue/KT-32981) "Create enum constant" quick fix adds redundant empty line
- [`KT-33060`](https://youtrack.jetbrains.com/issue/KT-33060) "Cleanup code" does not remove 'final' keyword for overridden function with non-canonical modifiers order
- [`KT-33115`](https://youtrack.jetbrains.com/issue/KT-33115) "Replace overloaded operator with function call" intention should not be shown on incomplete expressions
- [`KT-33150`](https://youtrack.jetbrains.com/issue/KT-33150) Don't suggest create expect function from function with `private` modifier
- [`KT-33153`](https://youtrack.jetbrains.com/issue/KT-33153) False positive "Redundant overriding method" when overriding package private method
- [`KT-33204`](https://youtrack.jetbrains.com/issue/KT-33204) False positive "flatMap call could be simplified to flatten()" with Array
- [`KT-33299`](https://youtrack.jetbrains.com/issue/KT-33299) "Create type parameter from usage" should work with backticks
- [`KT-33300`](https://youtrack.jetbrains.com/issue/KT-33300) "Create type parameter from usage" suggests for top level property
- [`KT-33302`](https://youtrack.jetbrains.com/issue/KT-33302) KNPE after "Create type parameter from usage" with typealias
- [`KT-33357`](https://youtrack.jetbrains.com/issue/KT-33357) 'java.lang.Throwable: Assertion failed: Refactorings should be invoked inside transaction 'exception occurs when extracting sealed class from file with the same name
- [`KT-33362`](https://youtrack.jetbrains.com/issue/KT-33362) Inspection "Extract class from current file" is not available for 'sealed' keyword
- [`KT-33437`](https://youtrack.jetbrains.com/issue/KT-33437) “Argument rangeInElement (0,1) endOffset must not exceed descriptor text range (0, 0) length (0).” on creating Kotlin Script files inside package
- [`KT-33612`](https://youtrack.jetbrains.com/issue/KT-33612) "Replace with safe call" quick fix moves code to another line
- [`KT-33660`](https://youtrack.jetbrains.com/issue/KT-33660) "Convert to anonymous object" with nested SAM interface inserts `object` keyword in the wrong place
- [`KT-33718`](https://youtrack.jetbrains.com/issue/KT-33718) "Create enum constant" quick fix adds after semicolon
- [`KT-33754`](https://youtrack.jetbrains.com/issue/KT-33754) Improve error hint message for "Create expect/actual..."
- [`KT-33880`](https://youtrack.jetbrains.com/issue/KT-33880) "Convert to range check" produces code that is subject to ReplaceRangeToWithUntil for range with exclusive upper bound
- [`KT-33930`](https://youtrack.jetbrains.com/issue/KT-33930) Don't suggest "create expect" quick fix on `lateinit` and `const` top-level properties
- [`KT-33981`](https://youtrack.jetbrains.com/issue/KT-33981) “KotlinCodeInsightWorkspaceSettings is registered as application service, but requested as project one” on opening QF menu for some fixes in IJ193
- [`KT-32965`](https://youtrack.jetbrains.com/issue/KT-32965) False positive "Redundant qualifier name" with nested enum member call
- [`KT-33597`](https://youtrack.jetbrains.com/issue/KT-33597) False positive "Redundant qualifier name" with class property initialized with same-named object property
- [`KT-33991`](https://youtrack.jetbrains.com/issue/KT-33991) False positive "Redundant qualifier name" with enum member function call
- [`KT-34113`](https://youtrack.jetbrains.com/issue/KT-34113) False positive "Redundant qualifier name" with Enum.values() from a different Enum

### IDE. KDoc

- [`KT-20777`](https://youtrack.jetbrains.com/issue/KT-20777) KDoc: Type parameters are not shown in sample code

### IDE. Multiplatform

- [`KT-26333`](https://youtrack.jetbrains.com/issue/KT-26333) IDE incorrectly requires `actual` implementations to be present in all the project source sets
- [`KT-28537`](https://youtrack.jetbrains.com/issue/KT-28537) Platform-specific type taken from a dependency module isn't reported in `common` code
- [`KT-32562`](https://youtrack.jetbrains.com/issue/KT-32562) Provide a registry key to enable/disable hierarchical multiplatform mechanism in IDE

### IDE. Navigation

- [`KT-28075`](https://youtrack.jetbrains.com/issue/KT-28075) Duplicate "implements" gutter icons on some interfaces
- [`KT-30052`](https://youtrack.jetbrains.com/issue/KT-30052) Duplicated "is subclassed" editor gutter icons
- [`KT-33182`](https://youtrack.jetbrains.com/issue/KT-33182) com.intellij.idea.IdeStarter#main has four (!) icons, should be two

### IDE. REPL

- [`KT-33329`](https://youtrack.jetbrains.com/issue/KT-33329) IllegalArgumentException in REPL

### IDE. Refactorings

- [`KT-24929`](https://youtrack.jetbrains.com/issue/KT-24929) 'Search for references' checkbox state isn't saved on move of kotlin file
- [`KT-30342`](https://youtrack.jetbrains.com/issue/KT-30342) Move refactoring: suggest file name starting with an uppercase letter
- [`KT-32426`](https://youtrack.jetbrains.com/issue/KT-32426) Invalid code format after "Pull Members Up" on function with comment and another indent
- [`KT-32496`](https://youtrack.jetbrains.com/issue/KT-32496) "Problems Detected" dialog message about conflicting declarations on moving file to another package is absolutely unreadable
- [`KT-33059`](https://youtrack.jetbrains.com/issue/KT-33059) Exception [Assertion failed: Write access is allowed inside write-action only] in case of Move class to nonexistent folder
- [`KT-33972`](https://youtrack.jetbrains.com/issue/KT-33972) Change signature should affect all hierarchy

### IDE. Run Configurations

- [`KT-34366`](https://youtrack.jetbrains.com/issue/KT-34366) Implement gutters for running tests (multi-platform projects)

### IDE. Scratch

- [`KT-23986`](https://youtrack.jetbrains.com/issue/KT-23986) No access to stdout output in Kotlin scratch
- [`KT-23989`](https://youtrack.jetbrains.com/issue/KT-23989) Scratch: allow copy of a scratch output
- [`KT-28910`](https://youtrack.jetbrains.com/issue/KT-28910) Add hint for Make before Run checkbox
- [`KT-29407`](https://youtrack.jetbrains.com/issue/KT-29407) strange output for long strings
- [`KT-31295`](https://youtrack.jetbrains.com/issue/KT-31295) Kotlin worksheet in projects, not as scratch files
- [`KT-32366`](https://youtrack.jetbrains.com/issue/KT-32366) Sidebar as alternative output layout
- [`KT-33585`](https://youtrack.jetbrains.com/issue/KT-33585) Synchronized highlighting of the main editor and side panel

### IDE. Script

- [`KT-30206`](https://youtrack.jetbrains.com/issue/KT-30206) Settings / ... / Kotlin Scripting with no project opened causes ISE: "project.baseDir must not be null" at ScriptTemplatesFromDependenciesProvider.loadScriptDefinitions()
- [`KT-32513`](https://youtrack.jetbrains.com/issue/KT-32513) Intellij hangs in ApplicationUtilsKt.runWriteAction through ScriptDependenciesLoader$submitMakeRootsChange$doNotifyRootsChanged$1.run

### IDE. Wizards

- [`KT-27587`](https://youtrack.jetbrains.com/issue/KT-27587) Bump Android build tools version at `Multiplatform (Android/iOS)` template of the New Project Wizard
- [`KT-33927`](https://youtrack.jetbrains.com/issue/KT-33927) MPP, Kotlin New project wizard: broken project generation
- [`KT-34108`](https://youtrack.jetbrains.com/issue/KT-34108) Gradle Kotlin DSL: generated project with `tasks` element fails on configuration stage with Gradle 4.10
- [`KT-34154`](https://youtrack.jetbrains.com/issue/KT-34154) New Project wizard: build.gradle.kts: type-safe code sets JVM 1.8 for main, but JVM 1.6 for test
- [`KT-34229`](https://youtrack.jetbrains.com/issue/KT-34229) New Project wizard: IDEA 193+: Mobile Android/iOS: creating another project of this type tries to write into previous one

### JavaScript

- [`KT-12935`](https://youtrack.jetbrains.com/issue/KT-12935) Generated source maps for JS mention nonexistent dummy.kt
- [`KT-26701`](https://youtrack.jetbrains.com/issue/KT-26701) JS, rollup.js: Application can't depend on a library if both sourcemaps reference "dummy.kt"

### Libraries

- [`KT-26309`](https://youtrack.jetbrains.com/issue/KT-26309) Avoid division in string-to-number conversions
- [`KT-27545`](https://youtrack.jetbrains.com/issue/KT-27545) File.copyTo: unclear error message when it fails to delete the destination
- [`KT-28804`](https://youtrack.jetbrains.com/issue/KT-28804) Wrong parameter name in kotlin.text.contentEquals
- [`KT-32024`](https://youtrack.jetbrains.com/issue/KT-32024) Modify `Iterable<T>.take(n)` implementation not to call `.next()` more than necessary
- [`KT-32532`](https://youtrack.jetbrains.com/issue/KT-32532) MutableList<T>.removeAll is lacking documentation
- [`KT-32728`](https://youtrack.jetbrains.com/issue/KT-32728) CollectionsKt.windowed throws IllegalArgumentException (Illegal Capacity: -1) when size param is Integer.MAX_VALUE due to overflow operation
- [`KT-33864`](https://youtrack.jetbrains.com/issue/KT-33864) Read from pseudo-file system is empty

### Reflection

- [`KT-13936`](https://youtrack.jetbrains.com/issue/KT-13936) KotlinReflectionInternalError on invoking callBy on overridden member with inherited default argument value
- [`KT-17860`](https://youtrack.jetbrains.com/issue/KT-17860) Improve KParameter.toString for receiver parameters

### Tools

- [`KT-17045`](https://youtrack.jetbrains.com/issue/KT-17045) Drop MaxPermSize support from compiler daemon
- [`KT-32259`](https://youtrack.jetbrains.com/issue/KT-32259) `org.jetbrains.annotations` module exported from embeddable compiler, causes problems in Java modular builds

### Tools. Android Extensions

- [`KT-32096`](https://youtrack.jetbrains.com/issue/KT-32096) IDE plugin doesn't recognize that Parcelize is no longer experimental

### Tools. CLI

- [`KT-24991`](https://youtrack.jetbrains.com/issue/KT-24991) CLI: Empty classpath in `kotlin` script except for `kotlin-runner.jar`
- [`KT-26624`](https://youtrack.jetbrains.com/issue/KT-26624) Set Thread.contextClassLoader when running programs with 'kotlin' launcher script or scripts with 'kotlinc -script'
- [`KT-24966`](https://youtrack.jetbrains.com/issue/KT-24966) Classloader problems when running basic kafka example with `kotlin` and `kotlinc`

### Tools. Compiler Plugins

- [`KT-29471`](https://youtrack.jetbrains.com/issue/KT-29471) output from jvm-api-gen plugin on classpath crashes downstream kotlinc-jvm: inline method with inner class
- [`KT-33630`](https://youtrack.jetbrains.com/issue/KT-33630) cannot use @kotlinx.serialization.Transient and lateinit together on 1.3.50

### Tools. Daemon

- [`KT-32992`](https://youtrack.jetbrains.com/issue/KT-32992) Enable assertions in Kotlin Compile Daemon
- [`KT-33027`](https://youtrack.jetbrains.com/issue/KT-33027) Compilation with daemon fails, because IncrementalModuleInfo#serialVersionUID does not match

### Tools. Gradle

#### New Features

- [`KT-20760`](https://youtrack.jetbrains.com/issue/KT-20760) Kotlin Gradle Plugin doesn't allow for configuring friend paths through API
- [`KT-34009`](https://youtrack.jetbrains.com/issue/KT-34009) Associate compilations in the target–compilation project model

#### Performance Improvements

- [`KT-31666`](https://youtrack.jetbrains.com/issue/KT-31666) Kotlin plugin configures all tasks in a project when `kotlin.incremental` is enabled

#### Fixes

- [`KT-17630`](https://youtrack.jetbrains.com/issue/KT-17630) User test Gradle source set code cannot reach out internal members from the production code
- [`KT-22213`](https://youtrack.jetbrains.com/issue/KT-22213) Android Extensions experimental mode doesn't work with Gradle Kotlin DSL
- [`KT-31077`](https://youtrack.jetbrains.com/issue/KT-31077) android.kotlinOptions block is lacking its type
- [`KT-31641`](https://youtrack.jetbrains.com/issue/KT-31641) Kapt configurations miss attributes to resolve MPP dependencies: Cannot choose between the following variants ...
- [`KT-31713`](https://youtrack.jetbrains.com/issue/KT-31713) ConcurrentModificationException: Realize Pending during execution phase
- [`KT-32678`](https://youtrack.jetbrains.com/issue/KT-32678) Bugfixes in HMPP source set visibility
- [`KT-32679`](https://youtrack.jetbrains.com/issue/KT-32679) Testing & test tasks API in the target–compilation model
- [`KT-32804`](https://youtrack.jetbrains.com/issue/KT-32804) Kapt-generated Java sources in jvm+withJava MPP module are not compiled and bundled
- [`KT-32853`](https://youtrack.jetbrains.com/issue/KT-32853) ConcurrentModificationException when compiling with Gradle.
- [`KT-32872`](https://youtrack.jetbrains.com/issue/KT-32872) Gradle test runner for Native does not show failed build if process quit without starting printing results.
- [`KT-33105`](https://youtrack.jetbrains.com/issue/KT-33105) kapt+withJava in multiplatform module depending on other multiplatform fails on 1.3.50-eap-54
- [`KT-33469`](https://youtrack.jetbrains.com/issue/KT-33469) Drop support for Gradle versions older than 4.3 in the Kotlin Gradle plugin
- [`KT-33470`](https://youtrack.jetbrains.com/issue/KT-33470) Drop support for Gradle versions older than 4.9 in the Kotlin Gradle plugin
- [`KT-33980`](https://youtrack.jetbrains.com/issue/KT-33980) Read the granular source sets metadata flag value once and cache it for the current Gradle build
- [`KT-34312`](https://youtrack.jetbrains.com/issue/KT-34312) UnsupportedOperationException on `requiresVisibilityOf` in the Kotlin Gradle plugin

### Tools. Gradle. JS

#### New Features

- [`KT-31478`](https://youtrack.jetbrains.com/issue/KT-31478) Gradle, JS tests, Karma: Support sourcemaps in Gradle stacktraces
- [`KT-32073`](https://youtrack.jetbrains.com/issue/KT-32073) Gradle, JS, karma: parse errors and warnings from karma output
- [`KT-32075`](https://youtrack.jetbrains.com/issue/KT-32075) Gradle, JS, karma: download chrome headless using puppeteer

#### Fixes

- [`KT-31663`](https://youtrack.jetbrains.com/issue/KT-31663) Gradle/JS: with not installed browser specified for browser test the response is "Successful, 0 tests found"
- [`KT-32216`](https://youtrack.jetbrains.com/issue/KT-32216) Gradle, JS, tests: filter doesn't work
- [`KT-32224`](https://youtrack.jetbrains.com/issue/KT-32224) In Gradle Kotlin/JS projects, the `browserWebpack` task does not rerun when the `main` compilation's outputs change
- [`KT-32281`](https://youtrack.jetbrains.com/issue/KT-32281) Gradle, JS, karma: Headless chrome output is not captured
- [`KT-33288`](https://youtrack.jetbrains.com/issue/KT-33288) JS: Incorrect bundle with webpack output.library and source maps
- [`KT-33313`](https://youtrack.jetbrains.com/issue/KT-33313) When a Kotlin/JS test task runs using a custom compilation, it doesn't track the compilation outputs in its up-to-date checks
- [`KT-33547`](https://youtrack.jetbrains.com/issue/KT-33547) Template JS Client and JVM Server works wrong on 1.3.50 Kotlin
- [`KT-33549`](https://youtrack.jetbrains.com/issue/KT-33549) Gradle Kotlin/JS external declarations: search for `typings` key inside `package.json`
- [`KT-33579`](https://youtrack.jetbrains.com/issue/KT-33579) Js tests with mocha cannot be run
- [`KT-33710`](https://youtrack.jetbrains.com/issue/KT-33710) Task "generateExternals" for automatic Dukat execution does not work
- [`KT-33716`](https://youtrack.jetbrains.com/issue/KT-33716) Gradle, Yarn: yarn is not downloading via YarnSetupTask
- [`KT-34101`](https://youtrack.jetbrains.com/issue/KT-34101) CCE class org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest_Decorated cannot be cast to class org.gradle.api.provider.Provider on importing Gradle project with JS
- [`KT-34123`](https://youtrack.jetbrains.com/issue/KT-34123) "Cannot find node module "kotlin-test-js-runner/kotlin-test-karma-runner.js"" in `JS Client and JVM Server` new project wizard template
- [`KT-32319`](https://youtrack.jetbrains.com/issue/KT-32319) Gradle, js, webpack: source-map-loader failed to load source contents from relative urls
- [`KT-33417`](https://youtrack.jetbrains.com/issue/KT-33417) NodeTest failed with error "Failed to create MD5 hash" after NodeRun is executed
- [`KT-33747`](https://youtrack.jetbrains.com/issue/KT-33747) Exception doesn't fail the test in kotlin js node runner
- [`KT-33828`](https://youtrack.jetbrains.com/issue/KT-33828) jsPackageJson task fails after changing artifact origin repository
- [`KT-34460`](https://youtrack.jetbrains.com/issue/KT-34460) NPM packages clash if declared in dependencies and devDependencies both
- [`KT-34555`](https://youtrack.jetbrains.com/issue/KT-34555) [Kotlin/JS] Unsafe webpack config merge

### Tools. Gradle. Native

- [`KT-33076`](https://youtrack.jetbrains.com/issue/KT-33076) MPP Gradle plugin: Produce final native binaries from compilation output instead of sources
- [`KT-33645`](https://youtrack.jetbrains.com/issue/KT-33645) Kotlin/Native: Compilation failure if a library passed by the -Xinclude option contains a constructor annotated with @OverrideInit
- [`KT-34259`](https://youtrack.jetbrains.com/issue/KT-34259) MPP Gradle plugin: Support fat frameworks for watchOS and tvOS
- [`KT-34329`](https://youtrack.jetbrains.com/issue/KT-34329) Support watchOS and tvOS in CocoaPods Gradle plugin

### Tools. J2K

#### New Features

- [`KT-7940`](https://youtrack.jetbrains.com/issue/KT-7940) J2K: convert Integer.MAX_VALUE to Int.MAX_VALUE
- [`KT-22412`](https://youtrack.jetbrains.com/issue/KT-22412) J2K: Intention to replace if(...) throw IAE with require
- [`KT-22680`](https://youtrack.jetbrains.com/issue/KT-22680) Request: when converting Java->Kotlin, try to avoid creating functions for constant fields (`static final`)

#### Performance Improvements

- [`KT-33725`](https://youtrack.jetbrains.com/issue/KT-33725) Java->Kotlin converter on paste performs expensive reparse in unrelated contexts
- [`KT-33854`](https://youtrack.jetbrains.com/issue/KT-33854) J2K conversion of Interface freezes UI for more than 10 seconds without progress dialog
- [`KT-33875`](https://youtrack.jetbrains.com/issue/KT-33875) [NewJ2K] InspectionLikeProcessingGroup pipeline rework: query isApplicable in parallel for all element first, apply relevant after in EDT

#### Fixes

- [`KT-19603`](https://youtrack.jetbrains.com/issue/KT-19603) A mutable container property updated from another class converts to red code
- [`KT-19607`](https://youtrack.jetbrains.com/issue/KT-19607) Static member qualified by child class converted to red code
- [`KT-20035`](https://youtrack.jetbrains.com/issue/KT-20035) Automatic conversion from Java 1.8 to Kotlin 1.1.4 using Idea 2017.2.2: null!!
- [`KT-21504`](https://youtrack.jetbrains.com/issue/KT-21504) J2K: Convert Long.parseLong(s) to s.toLong()
- [`KT-24293`](https://youtrack.jetbrains.com/issue/KT-24293) Bug: conversion of Java "List" into Kotlin doesn't produce "MutableList"
- [`KT-32253`](https://youtrack.jetbrains.com/issue/KT-32253) Converting Java class with field initialized by constructor parameter used to initialize a different field or named as a different field produces red code
- [`KT-32696`](https://youtrack.jetbrains.com/issue/KT-32696) New J2K: java List is wrongly converted when pasting it to Kotlin file
- [`KT-32903`](https://youtrack.jetbrains.com/issue/KT-32903) J2K: Static import is converted to unresolved reference
- [`KT-33235`](https://youtrack.jetbrains.com/issue/KT-33235) Remove "Replace guard clause with kotlin's function call" inspection and tranform it to J2K post-processing
- [`KT-33434`](https://youtrack.jetbrains.com/issue/KT-33434) UninitializedPropertyAccessException occurs after J2K convertion of package with custom functional interface and it's usage
- [`KT-33445`](https://youtrack.jetbrains.com/issue/KT-33445) Two definitions of org.jetbrains.kotlin.idea.j2k.J2kPostProcessing in Kotlin 1.3.50-rc
- [`KT-33500`](https://youtrack.jetbrains.com/issue/KT-33500) Unresolved reference after J2K convertion of isNaN/isFinite
- [`KT-33556`](https://youtrack.jetbrains.com/issue/KT-33556) J2K converter fails on statically imported global overloaded functions
- [`KT-33679`](https://youtrack.jetbrains.com/issue/KT-33679) Result of assignment with operation differs in kotlin after J2K conversion
- [`KT-33687`](https://youtrack.jetbrains.com/issue/KT-33687) Extra empty lines are added after comment after J2K conversion
- [`KT-33743`](https://youtrack.jetbrains.com/issue/KT-33743) Reference to static field outside its class is unresolved after J2K conversion
- [`KT-33756`](https://youtrack.jetbrains.com/issue/KT-33756) J2K: main method with varargs is converted to non-runnable main kotlin method
- [`KT-33863`](https://youtrack.jetbrains.com/issue/KT-33863) java.lang.IllegalStateException: argument must not be null exception occurs on J2K conversion of Generic class usage without type parameter
- [`KT-19355`](https://youtrack.jetbrains.com/issue/KT-19355) "Variable expected" error after J2K for increment/decrement of an object field
- [`KT-19569`](https://youtrack.jetbrains.com/issue/KT-19569) Java wrappers for primitives are converted to nullable types with nullability errors in Kotlin
- [`KT-30643`](https://youtrack.jetbrains.com/issue/KT-30643) J2K: wrong position of TYPE_USE annotation
- [`KT-32518`](https://youtrack.jetbrains.com/issue/KT-32518) Nullability information is lost after J2K convertion of constructor with null parameter
- [`KT-33941`](https://youtrack.jetbrains.com/issue/KT-33941) J2K: Overload resolution ambiguity with assertThat and `StackOverflowError` in IDEA
- [`KT-33942`](https://youtrack.jetbrains.com/issue/KT-33942) New J2K: `StackOverflowError` from `org.jetbrains.kotlin.nj2k.inference.common.BoundTypeCalculatorImpl.boundTypeUnenhanced`
- [`KT-34164`](https://youtrack.jetbrains.com/issue/KT-34164) J2K: on converting static method references in other .java sources are not corrected
- [`KT-34165`](https://youtrack.jetbrains.com/issue/KT-34165) J2K: imports are lost in conversion, references resolve to different same-named classes
- [`KT-34266`](https://youtrack.jetbrains.com/issue/KT-34266) Multiple errors after converting Java class implementing an interface from another file

### Tools. JPS

- [`KT-33808`](https://youtrack.jetbrains.com/issue/KT-33808) JPS compilation is not incremental in IDEA 2019.3

### Tools. Maven

- [`KT-34006`](https://youtrack.jetbrains.com/issue/KT-34006) Maven plugin do not consider .kts files as Kotlin sources
- [`KT-34011`](https://youtrack.jetbrains.com/issue/KT-34011) Kotlin scripting plugin is not loaded by default from kotlin maven plugin

### Tools. REPL

- [`KT-27956`](https://youtrack.jetbrains.com/issue/KT-27956) REPL/Script: extract classes and names right from ClassLoader

### Tools. Scripts

- [`KT-31661`](https://youtrack.jetbrains.com/issue/KT-31661) ClassNotFoundException in runtime for 'kotlinc -script' while compilation is fine
- [`KT-31704`](https://youtrack.jetbrains.com/issue/KT-31704) [kotlin-scripting] passing `name` to String.toScriptSource make script compilation failed
- [`KT-32234`](https://youtrack.jetbrains.com/issue/KT-32234) "Unable to derive module descriptor" when using Kotlin compiler (embeddable) in Java 9+ modular builds
- [`KT-33529`](https://youtrack.jetbrains.com/issue/KT-33529) NCDF running kotlin script from command line
- [`KT-33554`](https://youtrack.jetbrains.com/issue/KT-33554) Classpath not passed properly when evaluating standard script with `kotlinc`
- [`KT-33892`](https://youtrack.jetbrains.com/issue/KT-33892) REPL/Script: Implement mechanism for resolve top-level functions and properties from classloader
- [`KT-34294`](https://youtrack.jetbrains.com/issue/KT-34294) SamWithReceiver cannot be used with new scripting API

### Tools. kapt

- [`KT-31291`](https://youtrack.jetbrains.com/issue/KT-31291) Incremental Kapt: IllegalArgumentException from `org.jetbrains.org.objectweb.asm.ClassVisitor.<init>`
- [`KT-33028`](https://youtrack.jetbrains.com/issue/KT-33028) Kapt error "Unable to find package java.lang in classpath or bootclasspath" on JDK 11 with `-source 8`
- [`KT-33050`](https://youtrack.jetbrains.com/issue/KT-33050) kapt does not honor source/target compatibility of enclosing project
- [`KT-33052`](https://youtrack.jetbrains.com/issue/KT-33052) Kapt generates invalid java stubs for enum members with class bodies on JDK 11
- [`KT-33056`](https://youtrack.jetbrains.com/issue/KT-33056) Incremental kapt is disabled due to `javaslang.match.PatternsProcessor` processor on classpath when Worker API is enabled
- [`KT-33493`](https://youtrack.jetbrains.com/issue/KT-33493) 1.3.50, org.jetbrains.org.objectweb.asm.ClassVisitor.<init>
- [`KT-33515`](https://youtrack.jetbrains.com/issue/KT-33515) Incremental kapt fails when I remove an annotated file
- [`KT-33889`](https://youtrack.jetbrains.com/issue/KT-33889) Incremental KAPT: NoSuchMethodError: 'java.util.regex.Pattern com.sun.tools.javac.processing.JavacProcessingEnvironment.validImportStringToPattern(java.lang.String)'
- [`KT-33503`](https://youtrack.jetbrains.com/issue/KT-33503) Kapt, Spring Boot: "Could not resolve all files for configuration ':_classStructurekaptKotlin'"
- [`KT-33800`](https://youtrack.jetbrains.com/issue/KT-33800) KAPT aptMode=compile fails to compile certain legitimate code

## 1.3.50

### Compiler

- [`KT-12787`](https://youtrack.jetbrains.com/issue/KT-12787) Debugger: Generate line number at end of function (to set a breakpoint on the last line of the block)
- [`KT-23675`](https://youtrack.jetbrains.com/issue/KT-23675) "Parameter specified as non-null is null: method org.jetbrains.kotlin.codegen.FrameMapBase.getIndex, parameter descriptor" when classes are defined inside an anonymous extension function and access a field of the extension function's `this` instance
- [`KT-24596`](https://youtrack.jetbrains.com/issue/KT-24596) Refactor / Inline const property does not insert its value into usage in annotation
- [`KT-25497`](https://youtrack.jetbrains.com/issue/KT-25497) kotlinx.serialization - throws Backend Internal error exception during code generation of sealed classes
- [`KT-28927`](https://youtrack.jetbrains.com/issue/KT-28927) "IllegalStateException: Arrays of class literals are not supported yet" in AnnotationDeserializer.resolveArrayElementType
- [`KT-31070`](https://youtrack.jetbrains.com/issue/KT-31070) IndexOutOfBoundsException in Analyzer with @JvmOverloads constructor with 34+ parameters
- [`KT-31265`](https://youtrack.jetbrains.com/issue/KT-31265) FIR: experimental compiler
- [`KT-31535`](https://youtrack.jetbrains.com/issue/KT-31535) False positives from compiler warning IMPLICIT_NOTHING_AS_TYPE_PARAMETER
- [`KT-31969`](https://youtrack.jetbrains.com/issue/KT-31969) NI: false positive USELESS_ELVIS with multiple elvis calls
- [`KT-32044`](https://youtrack.jetbrains.com/issue/KT-32044) For loop over full UByte range terminates at UInt bound.
- [`KT-25432`](https://youtrack.jetbrains.com/issue/KT-25432) No smartcast on qualifier expression of captured type
- [`KT-30796`](https://youtrack.jetbrains.com/issue/KT-30796) psi2ir generates IrErrorType for elvis with generic type having nullable upper-bound when expected type is not nullable
- [`KT-31242`](https://youtrack.jetbrains.com/issue/KT-31242) "Can't find enclosing method" proguard compilation exception with inline and crossinline
- [`KT-31347`](https://youtrack.jetbrains.com/issue/KT-31347) "IndexOutOfBoundsException: Insufficient maximum stack size" with crossinline and suspend
- [`KT-31367`](https://youtrack.jetbrains.com/issue/KT-31367) IllegalStateException: Concrete fake override public open fun (...)  defined in TheIssue[PropertyGetterDescriptorImpl@1a03c376] should have exactly one concrete super-declaration: []
- [`KT-31734`](https://youtrack.jetbrains.com/issue/KT-31734) Empty parameter list required on Annotations of function types
- [`KT-32434`](https://youtrack.jetbrains.com/issue/KT-32434) New type inference fails for Caffeine Cache
- [`KT-32452`](https://youtrack.jetbrains.com/issue/KT-32452) Kotlin 1.3.40 - problem in IDE with new type inference and suspending method reference
- [`KT-32407`](https://youtrack.jetbrains.com/issue/KT-32407) NI: "use property access syntax" intention causes freezes in editor
- [`KT-33127`](https://youtrack.jetbrains.com/issue/KT-33127) Script result value is not calculated properly for the last expression
- [`KT-33157`](https://youtrack.jetbrains.com/issue/KT-33157) Inline class with generic method is considered bad class by javac

### Docs & Examples

- [`KT-16602`](https://youtrack.jetbrains.com/issue/KT-16602) Provide examples of sorting API usage
- [`KT-32353`](https://youtrack.jetbrains.com/issue/KT-32353) Document order of array elements initialization

### IDE

#### New Features

- [`KT-28098`](https://youtrack.jetbrains.com/issue/KT-28098) Insert space after automatically closed right brace of nested lambda to follow code style

#### Fixes

- [`KT-16476`](https://youtrack.jetbrains.com/issue/KT-16476) Extend selection (Select Word) doesn't select just KDoc if cursor is just before the KDoc
- [`KT-21374`](https://youtrack.jetbrains.com/issue/KT-21374) Imports optimized tooltip is displayed, even if no changes were made
- [`KT-21422`](https://youtrack.jetbrains.com/issue/KT-21422) IDE can't import class from root package
- [`KT-27344`](https://youtrack.jetbrains.com/issue/KT-27344) MPP: jvmWithJava: no IDE module dependency is created between Kotlin test and Java main on import; Gradle build is successful
- [`KT-29667`](https://youtrack.jetbrains.com/issue/KT-29667) Kotlin update settings has wrong looking text boxes for versions
- [`KT-30133`](https://youtrack.jetbrains.com/issue/KT-30133) Update copyright creates duplicates for build.gradle.kts files
- [`KT-30782`](https://youtrack.jetbrains.com/issue/KT-30782) 'Show Method Separators' does not separate expression body Kotlin functions
- [`KT-31022`](https://youtrack.jetbrains.com/issue/KT-31022) `Quick definition` does not show Kotlin code in Java files
- [`KT-31499`](https://youtrack.jetbrains.com/issue/KT-31499) "Extend selection" selects escaped identifier name together with backticks
- [`KT-31595`](https://youtrack.jetbrains.com/issue/KT-31595) "Complete current statement" for method call closes brace at wrong place
- [`KT-31637`](https://youtrack.jetbrains.com/issue/KT-31637) NPE in IDE when organizing imports
- [`KT-31786`](https://youtrack.jetbrains.com/issue/KT-31786) KNPE at copy attempt due to kdoc reference
- [`KT-32276`](https://youtrack.jetbrains.com/issue/KT-32276) Fix flaky test for ultra light classes
- [`KT-32364`](https://youtrack.jetbrains.com/issue/KT-32364) Remove deprecated usages of OUT_OF_CODE_BLOCK_MODIFICATION_COUNT and write a replacement for Kotlin language
- [`KT-32370`](https://youtrack.jetbrains.com/issue/KT-32370) Lambdas should have implicit `return` in Kotlin Uast
- [`KT-12096`](https://youtrack.jetbrains.com/issue/KT-12096) Spring: rename of Kotlin bean defined in `@Bean` annotation fails
- [`KT-28193`](https://youtrack.jetbrains.com/issue/KT-28193) Exception: Mirror element should never be calculated for light classes generated from a single file
- [`KT-28822`](https://youtrack.jetbrains.com/issue/KT-28822) Dependencies in Kotlin MPP project could be wrongly resolved if project was not build before import
- [`KT-29267`](https://youtrack.jetbrains.com/issue/KT-29267) Enable ultra-light classes by default
- [`KT-31129`](https://youtrack.jetbrains.com/issue/KT-31129) Call only Kotlin-specific reference contributors for getting Kotlin references from PSI
- [`KT-32082`](https://youtrack.jetbrains.com/issue/KT-32082) Kotlin facet: 1.3.40 plugin does not properly read target platform settings of 1.3.50 plugin
- [`KT-32969`](https://youtrack.jetbrains.com/issue/KT-32969) Data class extending abstract class with final `toString`, `equals` or `hashCode` causes exception
- [`KT-33245`](https://youtrack.jetbrains.com/issue/KT-33245) IllegalArgumentException exception occurs on Tools->Configure Koltin in Project action in Android Studio

### IDE. Completion

- [`KT-9792`](https://youtrack.jetbrains.com/issue/KT-9792) Don't propose the same name for arguments of lambda on completion of function call with lambda template
- [`KT-29572`](https://youtrack.jetbrains.com/issue/KT-29572) Smart completing anonymous object uses incorrect code style
- [`KT-25264`](https://youtrack.jetbrains.com/issue/KT-25264) Freeze in Kotlin file on completion
- [`KT-32519`](https://youtrack.jetbrains.com/issue/KT-32519) Keyword completion: support fixing layout and typo tolerance

### IDE. Debugger

#### New Features

- [`KT-30740`](https://youtrack.jetbrains.com/issue/KT-30740) Display more information about variables when breakpoint is set inside lambda expression

#### Fixes

- [`KT-8579`](https://youtrack.jetbrains.com/issue/KT-8579) Debugger: Evaluate expression fails at typed arrays
- [`KT-10183`](https://youtrack.jetbrains.com/issue/KT-10183) Debugger: receiver properties are not shown inline in extension function
- [`KT-11663`](https://youtrack.jetbrains.com/issue/KT-11663) Assignment is not possible in Evaluate expression
- [`KT-11706`](https://youtrack.jetbrains.com/issue/KT-11706) Attempts to evaluate java method calls on 'Array' instance in debugger fail with NoSuchMethodError
- [`KT-11888`](https://youtrack.jetbrains.com/issue/KT-11888) Evaluate Expression for expression with synchronized
- [`KT-11938`](https://youtrack.jetbrains.com/issue/KT-11938) Empty condition is marked as error
- [`KT-13188`](https://youtrack.jetbrains.com/issue/KT-13188) Cannot evaluate expression with local extension function
- [`KT-14421`](https://youtrack.jetbrains.com/issue/KT-14421) Debugger: breakpoint set on trivial if/while is not hit
- [`KT-15259`](https://youtrack.jetbrains.com/issue/KT-15259) Debug: closing brace of object definition is considered executable; ISE: "Don't call this method for local declarations: OBJECT_DECLARATION" at LazyDeclarationResolver.getMemberScopeDeclaredIn()
- [`KT-19084`](https://youtrack.jetbrains.com/issue/KT-19084) Breakpoints on Debugger altering Result
- [`KT-19556`](https://youtrack.jetbrains.com/issue/KT-19556) Kotlin exception while debugging IJ plugin code
- [`KT-19980`](https://youtrack.jetbrains.com/issue/KT-19980) Debug: evaluation fails for setter of member extention property
- [`KT-20560`](https://youtrack.jetbrains.com/issue/KT-20560) Evaluate expression doesn't work for super method call
- [`KT-23526`](https://youtrack.jetbrains.com/issue/KT-23526) In *.kts scripts, debugger ignores breakpoints in top-level statements and members
- [`KT-24914`](https://youtrack.jetbrains.com/issue/KT-24914) AS: Uninitialized yet lazy properties called on first debug point reach
- [`KT-26742`](https://youtrack.jetbrains.com/issue/KT-26742) Debugger can't evaluate expected top-level function from common code
- [`KT-30120`](https://youtrack.jetbrains.com/issue/KT-30120) False positive "Unused equals expression" in evaluate expression window
- [`KT-30730`](https://youtrack.jetbrains.com/issue/KT-30730) Missing tooltip for "Kotlin variables view" button
- [`KT-30919`](https://youtrack.jetbrains.com/issue/KT-30919) Debugger's "Kotlin View" doesn't show variables inside lambdas
- [`KT-30976`](https://youtrack.jetbrains.com/issue/KT-30976) Debugger: No access to receiver evaluating named parameters during call to extension function
- [`KT-31418`](https://youtrack.jetbrains.com/issue/KT-31418) java.lang.ClassCastException : java.lang.annotation.Annotation[] cannot be cast to byte[]
- [`KT-31510`](https://youtrack.jetbrains.com/issue/KT-31510) isDumb should be used only under read action: KotlinEvaluator
- [`KT-31702`](https://youtrack.jetbrains.com/issue/KT-31702) Debugger can't stop on breakpoint on `Unit` expression from coroutine context
- [`KT-31709`](https://youtrack.jetbrains.com/issue/KT-31709) Evaluate: "IllegalArgumentException: Parameter specified as non-null is null: method org.jetbrains.kotlin.codegen.FrameMapBase.getIndex, parameter descriptor" with nested lambda member access
- [`KT-24829`](https://youtrack.jetbrains.com/issue/KT-24829) Access to coroutineContext in 'Evaluate expression'

### IDE. Gradle

- [`KT-19693`](https://youtrack.jetbrains.com/issue/KT-19693) Import package prefix from Gradle
- [`KT-30667`](https://youtrack.jetbrains.com/issue/KT-30667) Dependencies of a module on a multiplatform one with a JVM target and `withJava()` configured, are incorrectly resolved in IDE
- [`KT-32300`](https://youtrack.jetbrains.com/issue/KT-32300) Add possibility to distinguish kotlin source root from java source root
- [`KT-31014`](https://youtrack.jetbrains.com/issue/KT-31014) Gradle, JS: Webpack watch mode
- [`KT-31843`](https://youtrack.jetbrains.com/issue/KT-31843) Memory leak caused by KOTLIN_TARGET_DATA_NODE on project reimport

### IDE. Gradle. Script

- [`KT-31779`](https://youtrack.jetbrains.com/issue/KT-31779) "Highlighting in scripts is not available"
- [`KT-30638`](https://youtrack.jetbrains.com/issue/KT-30638) "Highlighting in scripts is not available until all Script Dependencies are loaded" in Diff viewer
- [`KT-30974`](https://youtrack.jetbrains.com/issue/KT-30974) Script dependencies resolution failed error while trying to use Kotlin for Gradle
- [`KT-31440`](https://youtrack.jetbrains.com/issue/KT-31440) Add link to Gradle Kotlin DSL logs when script dependencies resolution process fails
- [`KT-32483`](https://youtrack.jetbrains.com/issue/KT-32483) CNFE org.gradle.kotlin.dsl.KotlinBuildScript on creating new Gradle Kotlin project from wizard
- [`KT-21501`](https://youtrack.jetbrains.com/issue/KT-21501) build.gradle.kts displays failures if not using java sdk for module

### IDE. Inspections and Intentions

#### New Features

- [`KT-8958`](https://youtrack.jetbrains.com/issue/KT-8958) ReplaceWith intention message could be more helpful in case of generic substitution
- [`KT-12515`](https://youtrack.jetbrains.com/issue/KT-12515) Quickfix "by Delegates.notNull()" as replacement for "lateinit" for primitive type
- [`KT-14344`](https://youtrack.jetbrains.com/issue/KT-14344) Suggest to replace manual range with explicit `indices` call or iteration over collection
- [`KT-17916`](https://youtrack.jetbrains.com/issue/KT-17916) Import popup does not indicate deprecated classes
- [`KT-23501`](https://youtrack.jetbrains.com/issue/KT-23501) Add intention for converting ordinary properties to 'lazy' and vise versa
- [`KT-25006`](https://youtrack.jetbrains.com/issue/KT-25006) Add inspection "'equals()' between objects of inconvertible primitive / enum / string types"
- [`KT-27353`](https://youtrack.jetbrains.com/issue/KT-27353) Quickfix to add a constructor parameter from parent class to child class
- [`KT-30124`](https://youtrack.jetbrains.com/issue/KT-30124) Add inspection to replace java.util.Arrays.equals with contentEquals
- [`KT-30640`](https://youtrack.jetbrains.com/issue/KT-30640) Add inspection for check/require/checkNotNull/requireNotNull
- [`KT-30775`](https://youtrack.jetbrains.com/issue/KT-30775) Inspection for the case when one lateinit var overrides another lateinit var
- [`KT-31476`](https://youtrack.jetbrains.com/issue/KT-31476) Improve "Create expect..." quickfix
- [`KT-31533`](https://youtrack.jetbrains.com/issue/KT-31533) Make "Add operator modifier" an inspection instead of intention
- [`KT-31795`](https://youtrack.jetbrains.com/issue/KT-31795) Inspection: simplify property setter with custom visibility
- [`KT-31924`](https://youtrack.jetbrains.com/issue/KT-31924) Make "add import" intention more flexible based on caret position
- [`KT-30970`](https://youtrack.jetbrains.com/issue/KT-30970) No warning for empty `if` operator and `also`method

#### Fixes

- [`KT-12567`](https://youtrack.jetbrains.com/issue/KT-12567) "Introduce 'when' subject" intention does not work for "this" in extension function
- [`KT-14369`](https://youtrack.jetbrains.com/issue/KT-14369) "Replace elvis expression with 'if" intention produces boilerplate code for 'return' in RHS
- [`KT-16067`](https://youtrack.jetbrains.com/issue/KT-16067) "Replace 'if' expression with elvis expression" suggests replacing an idiomatic code with non-idiomatic
- [`KT-19643`](https://youtrack.jetbrains.com/issue/KT-19643) Tune or disable the FoldInitializerAndIfToElvis inspection
- [`KT-24439`](https://youtrack.jetbrains.com/issue/KT-24439) No method imports suggested
- [`KT-25786`](https://youtrack.jetbrains.com/issue/KT-25786) False positive "Not-null extension receiver of inline function can be made nullable" with `operator fun invoke`
- [`KT-25905`](https://youtrack.jetbrains.com/issue/KT-25905) False positive for 'LeakingThis' on a method call in enum class body
- [`KT-27074`](https://youtrack.jetbrains.com/issue/KT-27074) False positive "Foldable if-then" with Result type
- [`KT-27550`](https://youtrack.jetbrains.com/issue/KT-27550) "Redundant explicit this" false positive with subclass and extension lambda
- [`KT-27563`](https://youtrack.jetbrains.com/issue/KT-27563) Generate toString in common code shouldn't use java.util.Arrays
- [`KT-27822`](https://youtrack.jetbrains.com/issue/KT-27822) Don't suggest `might be const` on `actual` member declaration
- [`KT-28595`](https://youtrack.jetbrains.com/issue/KT-28595) "Assignment should be lifted out of 'if'" false negative for different but compatible derived types
- [`KT-29192`](https://youtrack.jetbrains.com/issue/KT-29192) "Convert property to function" with explicit generic type loses getter body
- [`KT-29716`](https://youtrack.jetbrains.com/issue/KT-29716) With both explicit and implicit package prefixes "Package name does not match containing directory" inspection suggests not usable quick fix
- [`KT-29731`](https://youtrack.jetbrains.com/issue/KT-29731) Don't suggest `Add val/var to parameter` at expect class constructor
- [`KT-30191`](https://youtrack.jetbrains.com/issue/KT-30191) "Lift out of if" intention isn't suggested for assignment of null
- [`KT-30197`](https://youtrack.jetbrains.com/issue/KT-30197) ReplaceWith for deprecated function adds class literal/callable reference argument above unless it is used in substitution
- [`KT-30627`](https://youtrack.jetbrains.com/issue/KT-30627) "Use property access syntax" produces red code if setter argument is a lambda with implicit SAM conversion
- [`KT-30804`](https://youtrack.jetbrains.com/issue/KT-30804) Property declaration goes to annotation comment when removing only modifier using RemoveModifierFix
- [`KT-30975`](https://youtrack.jetbrains.com/issue/KT-30975) ''when' has only 'else' branch and should be simplified' inspection removes subject variable definition used in else branch
- [`KT-31033`](https://youtrack.jetbrains.com/issue/KT-31033) "Create expect ..." quick fix incorrectly works for a secondary constructor in a multiplatform project
- [`KT-31272`](https://youtrack.jetbrains.com/issue/KT-31272) Expand "create expected ..." quick fix highlighting also to a primary constructor
- [`KT-31278`](https://youtrack.jetbrains.com/issue/KT-31278) Inappropriate "Remove redundant .let call" inspection
- [`KT-31341`](https://youtrack.jetbrains.com/issue/KT-31341) Incorrect quickfix "Replace with Kotlin analog" for conversion to an extension, where the first argument is an expression with an operation
- [`KT-31359`](https://youtrack.jetbrains.com/issue/KT-31359) "Invalid property key" inspection false positive for a bundle with several properties files
- [`KT-31362`](https://youtrack.jetbrains.com/issue/KT-31362) 'Move variable declaration into `when`' quickfix comments left brace with EOL comment
- [`KT-31443`](https://youtrack.jetbrains.com/issue/KT-31443) Remove braces intention places caret in a wrong place
- [`KT-31446`](https://youtrack.jetbrains.com/issue/KT-31446) Incorrect quick fix “Create expected class" for inline class with parameter with actual
- [`KT-31518`](https://youtrack.jetbrains.com/issue/KT-31518) Incorrect "Create expect function" for primary constructor
- [`KT-31673`](https://youtrack.jetbrains.com/issue/KT-31673) Only `when` keyword should be highlighted in WhenWithOnlyElseInspection
- [`KT-31716`](https://youtrack.jetbrains.com/issue/KT-31716) Decrease severity of PackageDirectoryMismatchInspection to INFO
- [`KT-31717`](https://youtrack.jetbrains.com/issue/KT-31717) Decrease severity of RemoveCurlyBracesFromTemplateInspection
- [`KT-31816`](https://youtrack.jetbrains.com/issue/KT-31816) "Package directive doesn't match file location" for root package is invisible in editor
- [`KT-31954`](https://youtrack.jetbrains.com/issue/KT-31954) MoveVariableDeclarationIntoWhen should move the caret to the subject expression
- [`KT-32001`](https://youtrack.jetbrains.com/issue/KT-32001) Wrong quickfixes for TOO_MANY_ARGUMENTS
- [`KT-32010`](https://youtrack.jetbrains.com/issue/KT-32010) Convert ReplaceSingleLineLetIntention to inspections
- [`KT-32046`](https://youtrack.jetbrains.com/issue/KT-32046) False negative "Redundant qualifier name" with class literal
- [`KT-32112`](https://youtrack.jetbrains.com/issue/KT-32112) False positive "Redundant qualifier name"
- [`KT-32318`](https://youtrack.jetbrains.com/issue/KT-32318) "Remove argument name" intention does not remove square braces for annotation vararg argument
- [`KT-32320`](https://youtrack.jetbrains.com/issue/KT-32320) False negative "Redundant qualifier name" with local object
- [`KT-32347`](https://youtrack.jetbrains.com/issue/KT-32347) Duplicative "Remove redundant 'public' modifier" suggestion for getter
- [`KT-32365`](https://youtrack.jetbrains.com/issue/KT-32365) "Convert to sealed class" intention should not be suggested when no "class" keyword
- [`KT-32419`](https://youtrack.jetbrains.com/issue/KT-32419) Spurious 'while' has empty body warning when body has explanatory comment
- [`KT-32506`](https://youtrack.jetbrains.com/issue/KT-32506) False negative "Remove redundant qualifier name" with `java.util.ArrayList<Int>()`
- [`KT-32454`](https://youtrack.jetbrains.com/issue/KT-32454) "Replace Java static method with Kotlin analog": invalid quick fix on 'abs()' function
- [`KT-26242`](https://youtrack.jetbrains.com/issue/KT-26242) "Create test" intention does nothing in common module
- [`KT-27208`](https://youtrack.jetbrains.com/issue/KT-27208) IDEA reports about the need to declare abstract or implement abstract method, but this method is @JvmStatic in an interface companion
- [`KT-27555`](https://youtrack.jetbrains.com/issue/KT-27555) `Create actual ...` quick fix does nothing if the corresponding source set directory isn't created yet
- [`KT-28121`](https://youtrack.jetbrains.com/issue/KT-28121) IDE: Warn on java files under "src/main/kotlin" or "src/test/kotlin" source roots
- [`KT-28295`](https://youtrack.jetbrains.com/issue/KT-28295) Use `languageSettings` for a quick fix to enable experimental features in multiplatform projects
- [`KT-28529`](https://youtrack.jetbrains.com/issue/KT-28529) Don't suggest `commonMain` source set as a target of `create expected ...` quick fix for a member of `*Test` source set
- [`KT-28746`](https://youtrack.jetbrains.com/issue/KT-28746) “Create actual class” quick fix creates invalid file when is called from files located in package directory but don't have package name
- [`KT-30622`](https://youtrack.jetbrains.com/issue/KT-30622) Add names to call arguments starting from given argument
- [`KT-31404`](https://youtrack.jetbrains.com/issue/KT-31404) Redundant 'requireNotNull' or 'checkNotNull' inspection: don't remove first argument
- [`KT-32705`](https://youtrack.jetbrains.com/issue/KT-32705) "Create expect" quick fix adds `actual` modifier to a `const`/`lateinit` declaration without a warning
- [`KT-32967`](https://youtrack.jetbrains.com/issue/KT-32967) Warning about incorrectly placed Java source file isn't automatically dismissed on move of the file to the proper source root

### IDE. JS

- [`KT-31895`](https://youtrack.jetbrains.com/issue/KT-31895) New Project wizard: Kotlin Gradle + Kotlin/JS for Node.js: incorrect DSL is inserted

### IDE. KDoc

- [`KT-30985`](https://youtrack.jetbrains.com/issue/KT-30985) Missing line break in quick doc for enum constant

### IDE. Multiplatform

- [`KT-29757`](https://youtrack.jetbrains.com/issue/KT-29757) IDE fails to import transitive dependency of a JVM module to a multiplatform one

### IDE. Navigation

- [`KT-10215`](https://youtrack.jetbrains.com/issue/KT-10215) Kotlin classes are listed after Java classes in the navigation bar

### IDE. Refactorings

- [`KT-29720`](https://youtrack.jetbrains.com/issue/KT-29720) Refactor / Move does not update package statement with implicit prefix
- [`KT-30762`](https://youtrack.jetbrains.com/issue/KT-30762) Inline method produces invalid code for suspend functions with receiver
- [`KT-30748`](https://youtrack.jetbrains.com/issue/KT-30748) 100+ Seconds UI Freeze on performing a Move Refactoring on a file with a lot of usages (KotlinOptimizeImports in thread dump)

### IDE. Scratch

- [`KT-23604`](https://youtrack.jetbrains.com/issue/KT-23604) Scratch: end of line is wrongly indented with the end of scratch line output 
- [`KT-27963`](https://youtrack.jetbrains.com/issue/KT-27963) Make REPL mode in Scratch files incremental
- [`KT-29534`](https://youtrack.jetbrains.com/issue/KT-29534) Line output jumps to the next line together with cursor
- [`KT-32791`](https://youtrack.jetbrains.com/issue/KT-32791) "Access is allowed from event dispatch thread only" while working with a scratch file

### IDE. Script

- [`KT-25187`](https://youtrack.jetbrains.com/issue/KT-25187) Kotlin script in src: warning: classpath entry points to a non-existent location on JDK 9+
- [`KT-31152`](https://youtrack.jetbrains.com/issue/KT-31152) Errors in IDE when different Java Sdk are set as Project SDK and as Gradle JVM
- [`KT-31521`](https://youtrack.jetbrains.com/issue/KT-31521) CNFE „org.jetbrains.kotlin.idea.caches.project.ScriptBinariesScopeCache“ on creating new Gradle based project
- [`KT-31826`](https://youtrack.jetbrains.com/issue/KT-31826) Gradle clean task causes IDEA to lose kotlin scripting configuration
- [`KT-31837`](https://youtrack.jetbrains.com/issue/KT-31837) TargetPlatform for scripts should depends on scriptDefinition.additionalArguments
- [`KT-30690`](https://youtrack.jetbrains.com/issue/KT-30690) Highlighting for scripts in diff view doesn't work for left part
- [`KT-32061`](https://youtrack.jetbrains.com/issue/KT-32061) Check classpath jars before applying script compilation result from file attributes
- [`KT-32554`](https://youtrack.jetbrains.com/issue/KT-32554) Freezes in ScriptDependenciesUpdater

### IDE. Tests Support

- [`KT-30814`](https://youtrack.jetbrains.com/issue/KT-30814) MPP, 191 platform: with Gradle test runner run configuration for platform test is created without tasks

### IDE. Wizards

- [`KT-32105`](https://youtrack.jetbrains.com/issue/KT-32105) MPP project wizard: add option for Kotlin Gradle DSL

### JS. Tools

- [`KT-31527`](https://youtrack.jetbrains.com/issue/KT-31527) Keep generating empty `jsTest` task
- [`KT-31565`](https://youtrack.jetbrains.com/issue/KT-31565) Gradle/JS: `npmResolve` is never UP-TO-DATE
- [`KT-32326`](https://youtrack.jetbrains.com/issue/KT-32326) Gradle, test runner: support postponing test running error reporting at the end of the build
- [`KT-32393`](https://youtrack.jetbrains.com/issue/KT-32393) Gradle, JS: Resolve projects lazily
- [`KT-31560`](https://youtrack.jetbrains.com/issue/KT-31560) Gradle: provide descriptions for JS tasks
- [`KT-31563`](https://youtrack.jetbrains.com/issue/KT-31563) Gradle/JS: npmResolve fails with "Invalid version" when user project's version does not match npm rules
- [`KT-31566`](https://youtrack.jetbrains.com/issue/KT-31566) Gradle/JS: with explicit call to `nodejs { testTask { useNodeJs() } }` configuration fails : "Could not find which method to invoke"
- [`KT-31694`](https://youtrack.jetbrains.com/issue/KT-31694) Gradle, NPM, windows: creating symlink requires administrator privilege

### Libraries

- [`KT-29372`](https://youtrack.jetbrains.com/issue/KT-29372) measureTime that returns both the result of block and elapsed time
- [`KT-32083`](https://youtrack.jetbrains.com/issue/KT-32083) Incorrect ReplaceWith annotation on kotlin.js.pow
- [`KT-12749`](https://youtrack.jetbrains.com/issue/KT-12749) Provide Int.bitCount, Long.bitCount etc.
- [`KT-32359`](https://youtrack.jetbrains.com/issue/KT-32359) Common Array.fill
- [`KT-33225`](https://youtrack.jetbrains.com/issue/KT-33225) JS: Incorrect conversion of infinite Double to Long

### Reflection

- [`KT-22923`](https://youtrack.jetbrains.com/issue/KT-22923) Reflection getMemberProperties fails: kotlin.reflect.jvm.internal.KotlinReflectionInternalError
- [`KT-31318`](https://youtrack.jetbrains.com/issue/KT-31318) "KotlinReflectionInternalError: Method is not supported" on accessing array class annotation parameter

### Tools. Daemon

- [`KT-31550`](https://youtrack.jetbrains.com/issue/KT-31550) NSME org.jetbrains.kotlin.com.intellij.openapi.vfs.impl.jar.CoreJarFileSystem.clearHandlersCache()V on compileKotlin task with plugin from master
- [`KT-32490`](https://youtrack.jetbrains.com/issue/KT-32490) Compiler daemon tests fail on windows due to directory name being too long
- [`KT-32950`](https://youtrack.jetbrains.com/issue/KT-32950) Daemon should inherit "-XX:MaxMetaspaceSize" of client VM
- [`KT-32992`](https://youtrack.jetbrains.com/issue/KT-32992) Enable assertions in Kotlin Compile Daemon
- [`KT-33027`](https://youtrack.jetbrains.com/issue/KT-33027) Compilation with daemon fails, because IncrementalModuleInfo#serialVersionUID does not match

### Tools. CLI

- [`KT-33177`](https://youtrack.jetbrains.com/issue/KT-33177) Introduce compiler flags -Xinline-classes and -Xpolymorphic-signature as a higher priority than -XXLanguage

### Tools. Compiler Plugins

- [`KT-28824`](https://youtrack.jetbrains.com/issue/KT-28824) Add jvm-abi-gen-embeddable for use with embeddable compiler
- [`KT-31279`](https://youtrack.jetbrains.com/issue/KT-31279) JPS build with compiler plugin and "Keep compiler alive = No" fails with CCE: "Cannot cast NoArgComponentRegistrar to ComponentRegistrar" at ServiceLoaderLite.loadImplementations()
- [`KT-32346`](https://youtrack.jetbrains.com/issue/KT-32346) kotlinx.serialization: Performance problems with completion/intellisense

### Tools. Gradle

#### New Features

- [`KT-26655`](https://youtrack.jetbrains.com/issue/KT-26655) Precise metadata publishing and consumption for new MPP
- [`KT-31018`](https://youtrack.jetbrains.com/issue/KT-31018) Gradle, JS: yarn
- [`KT-31703`](https://youtrack.jetbrains.com/issue/KT-31703) Gradle, JS: automatically download d.ts and generate kotlin/js external declarations using dukat
- [`KT-31890`](https://youtrack.jetbrains.com/issue/KT-31890) Gradle, JS, webpack: provide property with full bundle file path
- [`KT-32015`](https://youtrack.jetbrains.com/issue/KT-32015) Gradle, JS: resolve configuration only while executing tasks of specific projects
- [`KT-32136`](https://youtrack.jetbrains.com/issue/KT-32136) Gradle, test runner: handle case when test runtime exits abnormally
- [`KT-26256`](https://youtrack.jetbrains.com/issue/KT-26256) In new MPP, support Java compilation in JVM targets
- [`KT-30573`](https://youtrack.jetbrains.com/issue/KT-30573) Gradle, JS: enable source maps by default, change paths relative to node_modules directory
- [`KT-30747`](https://youtrack.jetbrains.com/issue/KT-30747) Gradle, JS tests: provide option to disable test configuration per target
- [`KT-31010`](https://youtrack.jetbrains.com/issue/KT-31010) Gradle, JS tests: Mocha
- [`KT-31011`](https://youtrack.jetbrains.com/issue/KT-31011) Gradle, JS tests: Karma
- [`KT-31013`](https://youtrack.jetbrains.com/issue/KT-31013) Gradle, JS: Webpack
- [`KT-31016`](https://youtrack.jetbrains.com/issue/KT-31016) Gradle: yarn downloading
- [`KT-31017`](https://youtrack.jetbrains.com/issue/KT-31017) Gradle, yarn: support workspaces
- [`KT-31697`](https://youtrack.jetbrains.com/issue/KT-31697) Gradle, NPM: report about clashes in packages_imported

#### Performance Improvements

- [`KT-29538`](https://youtrack.jetbrains.com/issue/KT-29538) AndroidSubPlugin#getCommonResDirectories is very slow

#### Fixes

- [`KT-29343`](https://youtrack.jetbrains.com/issue/KT-29343) Kotlin MPP source set dependencies are not properly propagated to tests in Android projects
- [`KT-30691`](https://youtrack.jetbrains.com/issue/KT-30691) Gradle, JS tests: Parent operation with id 947 not available when all tests passed
- [`KT-31917`](https://youtrack.jetbrains.com/issue/KT-31917) Gradle, JS: transitive dependency between compilations in same project doesn't work
- [`KT-31985`](https://youtrack.jetbrains.com/issue/KT-31985) Gradle, JS: webpack not working on windows
- [`KT-32072`](https://youtrack.jetbrains.com/issue/KT-32072) Gradle, JS: browser() in DSL triggers project.evaluate()
- [`KT-32204`](https://youtrack.jetbrains.com/issue/KT-32204) In an MPP, a dependency that is added to a non-root source set is incorrectly analyzed for source sets visibility
- [`KT-32225`](https://youtrack.jetbrains.com/issue/KT-32225) In an MPP, if a dependency is added to a source set that does not take part in published compilations, it is not correctly analyzed in source set visibility inference
- [`KT-32564`](https://youtrack.jetbrains.com/issue/KT-32564) Provide a flag to enable/disable hierarchical multiplatform mechanism in Gradle
- [`KT-31023`](https://youtrack.jetbrains.com/issue/KT-31023) Update Gradle module metadata warning in MPP publishing
- [`KT-31696`](https://youtrack.jetbrains.com/issue/KT-31696) Gradle, NPM: select one version between tools and all of compile configurations
- [`KT-31891`](https://youtrack.jetbrains.com/issue/KT-31891) Gradle: JS or Native tests execution: `build --scan` fails with ISE "Expected attachment of type ... but did not find it"
- [`KT-32210`](https://youtrack.jetbrains.com/issue/KT-32210) Kapt randomly fails with java.io.UTFDataFormatException
- [`KT-32706`](https://youtrack.jetbrains.com/issue/KT-32706) Gradle target "jsBrowserWebpack" should use output of JS compile task as input
- [`KT-32697`](https://youtrack.jetbrains.com/issue/KT-32697) [Tests] org.jetbrains.kotlin.gradle.SubpluginsIT
- [`KT-33246`](https://youtrack.jetbrains.com/issue/KT-33246) Kotlin JS & Native tests + Gradle 5.6: No value has been specified for property 'binaryResultsDirectory'


### Tools. Incremental Compile

- [`KT-31310`](https://youtrack.jetbrains.com/issue/KT-31310) Incremental build of Kotlin/JS project fails with KNPE at IncrementalJsCache.nonDirtyPackageParts()

### Tools. J2K

#### New Features

- [`KT-30776`](https://youtrack.jetbrains.com/issue/KT-30776) New J2K
- [`KT-31836`](https://youtrack.jetbrains.com/issue/KT-31836) Suggest user to configure Kotlin in the project  when running new J2K file conversion
- [`KT-32512`](https://youtrack.jetbrains.com/issue/KT-32512) ReplaceJavaStaticMethodWithKotlinAnalogInspection: add more cases for java.util.Arrays

#### Fixes

- [`KT-15791`](https://youtrack.jetbrains.com/issue/KT-15791) J2K converts class literals including redundant generic <*>
- [`KT-31234`](https://youtrack.jetbrains.com/issue/KT-31234) New J2K: Exception occurs on converting Java class to Kotlin
- [`KT-31250`](https://youtrack.jetbrains.com/issue/KT-31250) J2K: caret position of original file is preserved, adding spaces to resulting file
- [`KT-31251`](https://youtrack.jetbrains.com/issue/KT-31251) J2K: Java class with members is converted to Kotlin class with `final` constructor
- [`KT-31252`](https://youtrack.jetbrains.com/issue/KT-31252) J2K: resulted file is not formatted
- [`KT-31254`](https://youtrack.jetbrains.com/issue/KT-31254) J2K: resulted source uses full qualified references instead of imports
- [`KT-31255`](https://youtrack.jetbrains.com/issue/KT-31255) J2K: redundant modifiers in resulted source
- [`KT-31726`](https://youtrack.jetbrains.com/issue/KT-31726) New J2K converts annotation with array parameter to single value parameter
- [`KT-31809`](https://youtrack.jetbrains.com/issue/KT-31809) "Attempt to modify PSI for non-committed Document!" exception and broken kotlin file after new J2K conversion
- [`KT-31821`](https://youtrack.jetbrains.com/issue/KT-31821) J2K: IDEA Ultimate: local variable: CCE: "PsiLocalVariableImpl cannot be cast to class JvmAnnotatedElement" at JavaToJKTreeBuilder$DeclarationMapper.toJK()
- [`KT-32436`](https://youtrack.jetbrains.com/issue/KT-32436) NewJ2K generic field is not initialized after convertion
- [`KT-19327`](https://youtrack.jetbrains.com/issue/KT-19327) Java to Kotlin converter fails to convert code using Java 8 Stream API
- [`KT-21467`](https://youtrack.jetbrains.com/issue/KT-21467) Convert To Kotlin fails when using chained stream.flatmap methods
- [`KT-24677`](https://youtrack.jetbrains.com/issue/KT-24677) j2k creates nullable type for child function but keeps not null type for parent function
- [`KT-32572`](https://youtrack.jetbrains.com/issue/KT-32572) New J2K: Map with complex type as parameter is wrongly converted
- [`KT-32602`](https://youtrack.jetbrains.com/issue/KT-32602) J2K: no conversion of `String.length()` method call to property access of existing String property
- [`KT-32604`](https://youtrack.jetbrains.com/issue/KT-32604) kotlin.NotImplementedError exception occurs on converting Java call of toString method of data class to Kotlin
- [`KT-32609`](https://youtrack.jetbrains.com/issue/KT-32609) New J2K: Comparable class is wrongly converted to Kotlin if parameter of compareTo marked with @NotNull annotation
- [`KT-32693`](https://youtrack.jetbrains.com/issue/KT-32693) New J2K is throwing „Read access is allowed from event dispatch thread or inside read-action only“ on converting Java code inside Evaluate Expression window
- [`KT-32702`](https://youtrack.jetbrains.com/issue/KT-32702) New J2K: lambda with method reference is converted to lamdba with excessive parameter declaration
- [`KT-32835`](https://youtrack.jetbrains.com/issue/KT-32835) New J2K: NumberFormatException occurs on converting binary literals
- [`KT-32837`](https://youtrack.jetbrains.com/issue/KT-32837) J2K: NumberFormatException occurs on converting literals with underscore characters
- [`KT-22412`](https://youtrack.jetbrains.com/issue/KT-22412) J2K: Intention to replace if(...) throw IAE with require
- [`KT-33371`](https://youtrack.jetbrains.com/issue/KT-33371) Add an ability to switch between old and new J2K via settings window
- [`KT-32863`](https://youtrack.jetbrains.com/issue/KT-32863) New J2K: IllegalArgumentException occurs on Kotlin configuration in java project in Android Studio

### Tools. JPS

- [`KT-27181`](https://youtrack.jetbrains.com/issue/KT-27181) Compiler arguments are listed twice on JPS build of Gradle-based project
- [`KT-13563`](https://youtrack.jetbrains.com/issue/KT-13563) Kotlin jps-plugin should allow to instrument bytecode from Intellij IDEA.

### Tools. REPL

- [`KT-15125`](https://youtrack.jetbrains.com/issue/KT-15125) Support JSR 223 bindings directly via script variables
- [`KT-32085`](https://youtrack.jetbrains.com/issue/KT-32085) Kotlinc REPL: "java.lang.NoClassDefFoundError: org/jline/reader/LineReaderBuilder"

### Tools. Scripts

- [`KT-28137`](https://youtrack.jetbrains.com/issue/KT-28137) Implement result/return value for the regular (non-REPL) scripts

### Tools. kapt

- [`KT-30578`](https://youtrack.jetbrains.com/issue/KT-30578) `build/generated/source/kaptKotlin` is added as source directory to `main` instead of `jvmMain` when jvm { withJava() } is configured in a multiplatform project
- [`KT-30739`](https://youtrack.jetbrains.com/issue/KT-30739) Kapt generated sources are not visible from the IDE when "Create separate module per source set" is disabled
- [`KT-31127`](https://youtrack.jetbrains.com/issue/KT-31127) Kotlin-generating processor which uses Filer API breaks JavaCompile task
- [`KT-31378`](https://youtrack.jetbrains.com/issue/KT-31378) v1.3.31: NoSuchElementException in kapt when kapt.incremental.apt=true
- [`KT-32535`](https://youtrack.jetbrains.com/issue/KT-32535) Kapt aptMode=compile don't include files generated at `kapt.kotlin.generated` as sources to compile
- [`KT-31471`](https://youtrack.jetbrains.com/issue/KT-31471) KAPT prints "IncrementalProcessor" instead of processor name in verbose mode

## 1.3.41

### Compiler

- [`KT-31981`](https://youtrack.jetbrains.com/issue/KT-31981) New type inference asks to use ?. on non-null local variable
- [`KT-32029`](https://youtrack.jetbrains.com/issue/KT-32029) Exception when callable reference is resolved against unresolved type
- [`KT-32037`](https://youtrack.jetbrains.com/issue/KT-32037) No coercion to Unit for last expression with lambda in code block
- [`KT-32038`](https://youtrack.jetbrains.com/issue/KT-32038) Unsubstituted stub type cause type mismatch later for builder inference
- [`KT-32051`](https://youtrack.jetbrains.com/issue/KT-32051) NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER on matching Nothing with generic type parameter
- [`KT-32081`](https://youtrack.jetbrains.com/issue/KT-32081) New type inference fails involving Either and Nothing
- [`KT-32089`](https://youtrack.jetbrains.com/issue/KT-32089) False positive IMPLICIT_NOTHING_AS_TYPE_PARAMETER with lambdas
- [`KT-32094`](https://youtrack.jetbrains.com/issue/KT-32094) NI: member from star import has higher resolution priority than member imported by FQN
- [`KT-32116`](https://youtrack.jetbrains.com/issue/KT-32116) Type inference for HashMap<*,*> fails but compiles
- [`KT-32123`](https://youtrack.jetbrains.com/issue/KT-32123) Wrong unused import for extension method
- [`KT-32133`](https://youtrack.jetbrains.com/issue/KT-32133) Regression in Kotlin 1.3.40 new inference engine
- [`KT-32134`](https://youtrack.jetbrains.com/issue/KT-32134) `java.lang.Throwable: Resolution error of this type shouldn't occur for resolve try as a call` for incomplete try-construction
- [`KT-32143`](https://youtrack.jetbrains.com/issue/KT-32143) 1.3.40 new inference: backward incompatibility in method calls with multiple SAM arguments
- [`KT-32154`](https://youtrack.jetbrains.com/issue/KT-32154) setOf(Map.Entry<*, *>::key) gives error on IDE
- [`KT-32157`](https://youtrack.jetbrains.com/issue/KT-32157) Issue with new type inference in unbounded generics
- [`KT-32175`](https://youtrack.jetbrains.com/issue/KT-32175) New Type Inference Algorithm, RxJava and IDE-Compiler Inconsistency
- [`KT-32184`](https://youtrack.jetbrains.com/issue/KT-32184) NI: Argument for @NotNull parameter 'type' of org/jetbrains/kotlin/types/CommonSupertypes.depth must not be null
- [`KT-32187`](https://youtrack.jetbrains.com/issue/KT-32187) Exception when using callable reference with an unresolved LHS
- [`KT-32218`](https://youtrack.jetbrains.com/issue/KT-32218) Cannot call get on a Map<out Any,Any> with new type system
- [`KT-32230`](https://youtrack.jetbrains.com/issue/KT-32230) New inference not working with RxJava combineLatest
- [`KT-32235`](https://youtrack.jetbrains.com/issue/KT-32235) New type inference failure with `in` check

### JavaScript

- [`KT-32215`](https://youtrack.jetbrains.com/issue/KT-32215) Reified generic doesn't work with `ByteArray` on js

### Tools. CLI

- [`KT-32272`](https://youtrack.jetbrains.com/issue/KT-32272) kotlinc - no main manifest attribute, in hello.jar

### Tools. REPL

- [`KT-32085`](https://youtrack.jetbrains.com/issue/KT-32085) Kotlinc REPL: "java.lang.NoClassDefFoundError: org/jline/reader/LineReaderBuilder"

### Tools. Scripts

- [`KT-32169`](https://youtrack.jetbrains.com/issue/KT-32169) Kotlin 1.3.40 - Crash on running *.main.kts script: "NoSuchMethodError: kotlin.script.templates.standard.ScriptTemplateWithArgs.<init>"
- [`KT-32206`](https://youtrack.jetbrains.com/issue/KT-32206) Custom script definitions not loaded in the cli compiler

## 1.3.40

### Android

#### Fixes

- [`KT-12402`](https://youtrack.jetbrains.com/issue/KT-12402) Android DataBinding work correctly but the IDE show it as error
- [`KT-31432`](https://youtrack.jetbrains.com/issue/KT-31432) Remove obsolete code introduced in KT-12402

### Compiler

#### New Features

- [`KT-29915`](https://youtrack.jetbrains.com/issue/KT-29915) Implement `typeOf` on JVM
- [`KT-30467`](https://youtrack.jetbrains.com/issue/KT-30467) Provide a way to to save compiled script(s) as a jar

#### Performance Improvements

- [`KT-17755`](https://youtrack.jetbrains.com/issue/KT-17755) Optimize trimIndent and trimMargin on constant strings
- [`KT-30603`](https://youtrack.jetbrains.com/issue/KT-30603) Compiler performance issue: VariableLivenessKt.useVar performance

#### Fixes

- [`KT-19227`](https://youtrack.jetbrains.com/issue/KT-19227) Load built-ins from dependencies by default in the compiler, support erroneous "fallback" built-ins
- [`KT-23426`](https://youtrack.jetbrains.com/issue/KT-23426) Actual typealias to Java enum does not match expected enum because of modality
- [`KT-23854`](https://youtrack.jetbrains.com/issue/KT-23854) Inference for common type of two captured types
- [`KT-25105`](https://youtrack.jetbrains.com/issue/KT-25105) False-positive warning "Remove final upper bound" on generic override
- [`KT-25302`](https://youtrack.jetbrains.com/issue/KT-25302) New inference: "Type mismatch" between star projection and `Any?` type argument in specific case
- [`KT-25433`](https://youtrack.jetbrains.com/issue/KT-25433) Wrong order of fixing type variables for callable references
- [`KT-26386`](https://youtrack.jetbrains.com/issue/KT-26386) Front-end recursion problem while analyzing contract function with call expression of self in implies
- [`KT-26412`](https://youtrack.jetbrains.com/issue/KT-26412) Wrong LVT generated if decomposed parameter of suspend lambda is not the first parameter.
- [`KT-27097`](https://youtrack.jetbrains.com/issue/KT-27097) JvmMultifileClass + JvmName causes NoSuchMethodError on sealed class hierarchy for top-level members
- [`KT-28534`](https://youtrack.jetbrains.com/issue/KT-28534) Local variable entries are missing in LVT for suspend lambda parameters
- [`KT-28535`](https://youtrack.jetbrains.com/issue/KT-28535) Rename `result` to `$result` in coroutines' LVT
- [`KT-29184`](https://youtrack.jetbrains.com/issue/KT-29184) Implement inference for coroutines according to the @BuilderInference contract in NI
- [`KT-29772`](https://youtrack.jetbrains.com/issue/KT-29772) Contracts don't work if `contract` function is fully qualified (FQN)
- [`KT-29790`](https://youtrack.jetbrains.com/issue/KT-29790) Incorrect version requirement in metadata of anonymous class for suspend lambda
- [`KT-29948`](https://youtrack.jetbrains.com/issue/KT-29948) NI: incorrect DSLMarker behaviour with generic star projection
- [`KT-30021`](https://youtrack.jetbrains.com/issue/KT-30021) +NewInference on Kotlin Native :: java.lang.StackOverflowError
- [`KT-30242`](https://youtrack.jetbrains.com/issue/KT-30242) Statements are not coerced to Unit in last expressions of lambda
- [`KT-30243`](https://youtrack.jetbrains.com/issue/KT-30243) Include FIR modules into compiler
- [`KT-30250`](https://youtrack.jetbrains.com/issue/KT-30250) Rewrite at slice exception for callable reference argument inside delegated expression
- [`KT-30292`](https://youtrack.jetbrains.com/issue/KT-30292) Reference to function is unresolved when LHS is a star-projected type
- [`KT-30293`](https://youtrack.jetbrains.com/issue/KT-30293) Wrong intersection type for common supertype from String and integer type
- [`KT-30370`](https://youtrack.jetbrains.com/issue/KT-30370) Call is completed too early when there is "Nothing" constraint
- [`KT-30405`](https://youtrack.jetbrains.com/issue/KT-30405) Support expected type from cast in new inference
- [`KT-30406`](https://youtrack.jetbrains.com/issue/KT-30406) Fix testIfOrWhenSpecialCall test for new inference
- [`KT-30590`](https://youtrack.jetbrains.com/issue/KT-30590) Report diagnostic about not enough information for inference in NI
- [`KT-30620`](https://youtrack.jetbrains.com/issue/KT-30620) Exception from the compiler when coroutine-inference is involved even with the explicitly specified types
- [`KT-30656`](https://youtrack.jetbrains.com/issue/KT-30656) Exception is occurred when functions with implicit return-stub types are involved in builder-inference
- [`KT-30658`](https://youtrack.jetbrains.com/issue/KT-30658) Exception from the compiler when getting callable reference to a suspend function
- [`KT-30661`](https://youtrack.jetbrains.com/issue/KT-30661) Disable SAM conversions to Kotlin functions in new-inference by default
- [`KT-30676`](https://youtrack.jetbrains.com/issue/KT-30676) Overload resolution ambiguity when there is a callable reference argument and candidates with different functional return types
- [`KT-30694`](https://youtrack.jetbrains.com/issue/KT-30694) No debug metadata is generated for suspend lambdas which capture crossinline
- [`KT-30724`](https://youtrack.jetbrains.com/issue/KT-30724) False positive error about missing equals when one of the operands is incorrectly inferred to Nothing
- [`KT-30734`](https://youtrack.jetbrains.com/issue/KT-30734) No smartcast inside lambda literal in then/else "if" branch
- [`KT-30737`](https://youtrack.jetbrains.com/issue/KT-30737) Try analysing callable reference preemptively
- [`KT-30780`](https://youtrack.jetbrains.com/issue/KT-30780) Compiler crashes on 'private inline' function accessing private constant in 'inline class' (regression)
- [`KT-30808`](https://youtrack.jetbrains.com/issue/KT-30808) NI: False negative SPREAD_OF_NULLABLE with USELESS_ELVIS_RIGHT_IS_NULL
- [`KT-30816`](https://youtrack.jetbrains.com/issue/KT-30816) BasicJvmScriptEvaluator passes constructor parameters in incorrect order
- [`KT-30826`](https://youtrack.jetbrains.com/issue/KT-30826) There isn't report about unsafe call in the new inference (by invalidating smartcast), NPE
- [`KT-30843`](https://youtrack.jetbrains.com/issue/KT-30843) Duplicate JVM class name for expect/actual classes in JvmMultifileClass-annotated file
- [`KT-30853`](https://youtrack.jetbrains.com/issue/KT-30853) Compiler crashes with NewInference and Kotlinx.Coroutines Flow
- [`KT-30927`](https://youtrack.jetbrains.com/issue/KT-30927) Data flow info isn't used for 'this' which is returned from lambda using labeled return
- [`KT-31081`](https://youtrack.jetbrains.com/issue/KT-31081) Implement ArgumentMatch abstraction in new inference
- [`KT-31113`](https://youtrack.jetbrains.com/issue/KT-31113) Fix failing tests from SlicerTestGenerated
- [`KT-31199`](https://youtrack.jetbrains.com/issue/KT-31199) Unresolved callable references with typealias
- [`KT-31339`](https://youtrack.jetbrains.com/issue/KT-31339) Inliner does not remove redundant continuation classes, leading to CNFE in JMH bytecode processing
- [`KT-31346`](https://youtrack.jetbrains.com/issue/KT-31346) Fix diagnostic DSL_SCOPE_VIOLATION for new inference
- [`KT-31356`](https://youtrack.jetbrains.com/issue/KT-31356) False-positive error about violating dsl scope for new-inference
- [`KT-31360`](https://youtrack.jetbrains.com/issue/KT-31360) NI: inconsistently prohibits member usage without explicit receiver specification with star projection and DSL marker
- [`KT-18563`](https://youtrack.jetbrains.com/issue/KT-18563) Do not generate inline reified functions as private in bytecode
- [`KT-20849`](https://youtrack.jetbrains.com/issue/KT-20849) Inference results in Nothing type argument in case of passing 'out T' to 'in T1'
- [`KT-25290`](https://youtrack.jetbrains.com/issue/KT-25290) New inference: KNPE at ResolutionPartsKt.getExpectedTypeWithSAMConversion() on out projection of Java class
- [`KT-26418`](https://youtrack.jetbrains.com/issue/KT-26418) Back-end (JVM) Internal error when compiling decorated suspend inline functions
- [`KT-26925`](https://youtrack.jetbrains.com/issue/KT-26925) Decorated suspend inline function continuation resumes in wrong spot
- [`KT-28999`](https://youtrack.jetbrains.com/issue/KT-28999) Prohibit type parameters for anonymous objects
- [`KT-29307`](https://youtrack.jetbrains.com/issue/KT-29307) New inference: false negative CONSTANT_EXPECTED_TYPE_MISMATCH with a Map
- [`KT-29475`](https://youtrack.jetbrains.com/issue/KT-29475) IllegalArgumentException at getAbstractTypeFromDescriptor with deeply nested expression inside function named with a right parenthesis
- [`KT-29996`](https://youtrack.jetbrains.com/issue/KT-29996) Properly report  errors on attempt to inline bytecode from class files compiled to 1.8 to one compiling to 1.6
- [`KT-30289`](https://youtrack.jetbrains.com/issue/KT-30289) Don't generate annotations on synthetic methods for methods with default values for parameters
- [`KT-30410`](https://youtrack.jetbrains.com/issue/KT-30410) [NI] Front-end recursion problem while analyzing contract function with call expression of self in implies
- [`KT-30411`](https://youtrack.jetbrains.com/issue/KT-30411) Fold recursive types to star-projected ones when inferring type variables
- [`KT-30706`](https://youtrack.jetbrains.com/issue/KT-30706) Passing noinline lambda as (cross)inline parameter result in wrong state-machine
- [`KT-30707`](https://youtrack.jetbrains.com/issue/KT-30707) Java interop of coroutines inside inline functions is broken
- [`KT-30983`](https://youtrack.jetbrains.com/issue/KT-30983) ClassCastException: DeserializedTypeAliasDescriptor cannot be cast to PackageViewDescriptor on star-import of expect enum class actualized with typealias
- [`KT-31242`](https://youtrack.jetbrains.com/issue/KT-31242) "Can't find enclosing method" proguard compilation exception with inline and crossinline
- [`KT-31347`](https://youtrack.jetbrains.com/issue/KT-31347) "IndexOutOfBoundsException: Insufficient maximum stack size" with crossinline and suspend
- [`KT-31354`](https://youtrack.jetbrains.com/issue/KT-31354) Suspend inline functions with crossinline parameters are inaccessible from java
- [`KT-31367`](https://youtrack.jetbrains.com/issue/KT-31367) IllegalStateException: Concrete fake override public open fun (...)  defined in TheIssue[PropertyGetterDescriptorImpl@1a03c376] should have exactly one concrete super-declaration: []
- [`KT-31461`](https://youtrack.jetbrains.com/issue/KT-31461) NI: NONE_APPLICABLE instead of TYPE_MISMATCH when invoking convention plus operator
- [`KT-31503`](https://youtrack.jetbrains.com/issue/KT-31503) Type mismatch with recursive types and SAM conversions
- [`KT-31507`](https://youtrack.jetbrains.com/issue/KT-31507) Enable new type inference algorithm for IDE analysis
- [`KT-31514`](https://youtrack.jetbrains.com/issue/KT-31514) New inference generates multiple errors on generic inline expression with elvis operator
- [`KT-31520`](https://youtrack.jetbrains.com/issue/KT-31520) False positive "not enough information" for constraint with star projection and covariant type
- [`KT-31606`](https://youtrack.jetbrains.com/issue/KT-31606) Rewrite at slice on using callable reference with array access operator
- [`KT-31620`](https://youtrack.jetbrains.com/issue/KT-31620) False-positive "not enough information" for coroutine-inference when target method is assigned to a variable
- [`KT-31624`](https://youtrack.jetbrains.com/issue/KT-31624) Type from declared upper bound in Java is considered more specific than Nothing producing type mismatch later
- [`KT-31860`](https://youtrack.jetbrains.com/issue/KT-31860) Explicit type argument isn't considered as input type causing errors about "only input types"
- [`KT-31866`](https://youtrack.jetbrains.com/issue/KT-31866) Problems with using star-projections on LHS of callable reference
- [`KT-31868`](https://youtrack.jetbrains.com/issue/KT-31868) No type mismatch error when using NoInfer annotation
- [`KT-31941`](https://youtrack.jetbrains.com/issue/KT-31941) Good code red in IDE with smart cast on parameter of a generic type after null check

### IDE

#### New Features

- [`KT-11242`](https://youtrack.jetbrains.com/issue/KT-11242) Action to copy project diagnostic information to clipboard
- [`KT-24292`](https://youtrack.jetbrains.com/issue/KT-24292) Support external nullability annotations
- [`KT-30453`](https://youtrack.jetbrains.com/issue/KT-30453) Add plugin option (registry?) to enable new inference only in IDE

#### Performance Improvements

- [`KT-13841`](https://youtrack.jetbrains.com/issue/KT-13841) Classes and functions should be lazy-parseable
- [`KT-27106`](https://youtrack.jetbrains.com/issue/KT-27106) Performance issue with optimize imports
- [`KT-30442`](https://youtrack.jetbrains.com/issue/KT-30442) Several second lag on project open in KotlinNonJvmSourceRootConverterProvider
- [`KT-30644`](https://youtrack.jetbrains.com/issue/KT-30644) ConfigureKotlinInProjectUtilsKt freezes UI

#### Fixes

- [`KT-7380`](https://youtrack.jetbrains.com/issue/KT-7380) Imports insertion on paste does not work correctly when there were alias imports in the source file
- [`KT-10512`](https://youtrack.jetbrains.com/issue/KT-10512) Do not delete imports with unresolved parts when optimizing
- [`KT-13048`](https://youtrack.jetbrains.com/issue/KT-13048) "Strip trailing spaces on Save" should not strip trailing spaces inside multiline strings in Kotlin
- [`KT-17375`](https://youtrack.jetbrains.com/issue/KT-17375) Optimize Imports does not remove unused import alias
- [`KT-27385`](https://youtrack.jetbrains.com/issue/KT-27385) Uast: property references should resolve to getters/setters
- [`KT-28627`](https://youtrack.jetbrains.com/issue/KT-28627) Invalid detection of Kotlin jvmTarget inside Idea/gradle build
- [`KT-29267`](https://youtrack.jetbrains.com/issue/KT-29267) Enable ultra-light classes by default
- [`KT-29892`](https://youtrack.jetbrains.com/issue/KT-29892) A lot of threads are waiting in KotlinConfigurationCheckerComponent
- [`KT-30356`](https://youtrack.jetbrains.com/issue/KT-30356) Kotlin facet: all JVM 9+ target platforms are shown as "Target Platform = JVM 9" in Project Structure dialog
- [`KT-30514`](https://youtrack.jetbrains.com/issue/KT-30514) Auto-import with "Add unambiguous imports on the fly" imports enum members from another package
- [`KT-30583`](https://youtrack.jetbrains.com/issue/KT-30583) Kotlin light elements should be `isEquivalentTo` to it's origins
- [`KT-30688`](https://youtrack.jetbrains.com/issue/KT-30688) Memory leak in the PerModulePackageCacheService.onTooComplexChange method
- [`KT-30949`](https://youtrack.jetbrains.com/issue/KT-30949) Optimize Imports removes used import alias
- [`KT-30957`](https://youtrack.jetbrains.com/issue/KT-30957) Kotlin UAST: USimpleNameReferenceExpression in "imports" for class' member resolves incorrectly to class, not to the member
- [`KT-31090`](https://youtrack.jetbrains.com/issue/KT-31090) java.lang.NoSuchMethodError: org.jetbrains.kotlin.idea.UtilsKt.addModuleDependencyIfNeeded on import of a multiplatform project with Android target (191 IDEA + master)
- [`KT-31092`](https://youtrack.jetbrains.com/issue/KT-31092) Don't check all selected files in CheckComponentsUsageSearchAction.update()
- [`KT-31319`](https://youtrack.jetbrains.com/issue/KT-31319) False positive "Unused import" for `provideDelegate` extension
- [`KT-31332`](https://youtrack.jetbrains.com/issue/KT-31332) Kotlin AnnotatedElementsSearch does't support Kotlin `object`
- [`KT-31129`](https://youtrack.jetbrains.com/issue/KT-31129) Call only Kotlin-specific reference contributors for getting Kotlin references from PSI
- [`KT-31693`](https://youtrack.jetbrains.com/issue/KT-31693) Project with no Kotlin: JPS rebuild fails with NCDFE for GradleSettingsService at KotlinMPPGradleProjectTaskRunner.canRun()
- [`KT-31466`](https://youtrack.jetbrains.com/issue/KT-31466) SOE in Java highlighting when a Kotlin ultra-light method is invoked
- [`KT-31723`](https://youtrack.jetbrains.com/issue/KT-31723) Exception from UAST for attempt to infer types inside unresolved call
- [`KT-31842`](https://youtrack.jetbrains.com/issue/KT-31842) UOE: no descriptor for type constructor of TypeVariable(T)
- [`KT-31992`](https://youtrack.jetbrains.com/issue/KT-31992) Fix ColorsIcon.scale(float) compatibility issue between IU-192.5118.30 and 1.3.40-eap-105

### IDE. Completion

- [`KT-29038`](https://youtrack.jetbrains.com/issue/KT-29038) Autocomplete "suspend" into "suspend fun" at top level and class level (except in kts top level)
- [`KT-29398`](https://youtrack.jetbrains.com/issue/KT-29398) Add "arg" postfix template
- [`KT-30511`](https://youtrack.jetbrains.com/issue/KT-30511) Replace extra space after autocompleting data class with file name by parentheses

### IDE. Debugger

- [`KT-10636`](https://youtrack.jetbrains.com/issue/KT-10636) Debugger: can't evaluate call of function type parameter inside inline function
- [`KT-18247`](https://youtrack.jetbrains.com/issue/KT-18247) Debugger: class level watches fail to evaluate outside of class instance context
- [`KT-18263`](https://youtrack.jetbrains.com/issue/KT-18263) Settings / Debugger / Java Type Renderers: unqualified Kotlin class members in Java expressions are shown as errors
- [`KT-23586`](https://youtrack.jetbrains.com/issue/KT-23586) Non-trivial properties autocompletion in evaluation window
- [`KT-30216`](https://youtrack.jetbrains.com/issue/KT-30216) Evaluate expression: declarations annotated with Experimental (LEVEL.ERROR) fail due to compilation error
- [`KT-30610`](https://youtrack.jetbrains.com/issue/KT-30610) Debugger: Variables view shows second `this` instance for inline function even from the same class as caller function
- [`KT-30714`](https://youtrack.jetbrains.com/issue/KT-30714) Breakpoints are shown as invalid for classes that are not loaded yet
- [`KT-30934`](https://youtrack.jetbrains.com/issue/KT-30934) "InvocationException: Exception occurred in target VM" on debugger breakpoint hit (with kotlintest)
- [`KT-31266`](https://youtrack.jetbrains.com/issue/KT-31266) Kotlin debugger incompatibility with latest 192 nightly: KotlinClassWithDelegatedPropertyRenderer
- [`KT-31785`](https://youtrack.jetbrains.com/issue/KT-31785) Exception on attempt to evaluate local function

### IDE. Gradle

- [`KT-29854`](https://youtrack.jetbrains.com/issue/KT-29854) File collection dependency does not work with NMPP+JPS
- [`KT-30531`](https://youtrack.jetbrains.com/issue/KT-30531) Gradle: NodeJS downloading
- [`KT-30767`](https://youtrack.jetbrains.com/issue/KT-30767) Kotlin import uses too much memory when working with big projects
- [`KT-29564`](https://youtrack.jetbrains.com/issue/KT-29564) kotlin.parallel.tasks.in.project=true causes idea to create kotlin modules with target JVM 1.6
- [`KT-31014`](https://youtrack.jetbrains.com/issue/KT-31014) Gradle, JS: Webpack watch mode
- [`KT-31843`](https://youtrack.jetbrains.com/issue/KT-31843) Memory leak caused by KOTLIN_TARGET_DATA_NODE on project reimport
- [`KT-31952`](https://youtrack.jetbrains.com/issue/KT-31952) Fix compatibility issues with IDEA after fixing IDEA-187832

### IDE. Gradle. Script

- [`KT-30638`](https://youtrack.jetbrains.com/issue/KT-30638) "Highlighting in scripts is not available until all Script Dependencies are loaded" in Diff viewer
- [`KT-31124`](https://youtrack.jetbrains.com/issue/KT-31124) “compileKotlin - configuration not found: kotlinScriptDef, the plugin is probably applied by a mistake” after creating new project with IJ and Kotlin from master
- [`KT-30974`](https://youtrack.jetbrains.com/issue/KT-30974) Script dependencies resolution failed error while trying to use Kotlin for Gradle

### IDE. Hints

- [`KT-30057`](https://youtrack.jetbrains.com/issue/KT-30057) "View->Type info" shows "Type is unknown" for named argument syntax

### IDE. Inspections and Intentions

#### New Features

- [`KT-11629`](https://youtrack.jetbrains.com/issue/KT-11629) Inspection: creating Throwable without throwing it
- [`KT-12392`](https://youtrack.jetbrains.com/issue/KT-12392) Unused import with alias should be highlighted and removed with Optimize Imports
- [`KT-12721`](https://youtrack.jetbrains.com/issue/KT-12721) inspection should be made for converting Integer.toString(int) to int.toString()
- [`KT-13962`](https://youtrack.jetbrains.com/issue/KT-13962) Intention to replace Java collection constructor calls with function calls from stdlib (ArrayList() → arrayListOf())
- [`KT-15537`](https://youtrack.jetbrains.com/issue/KT-15537) Add inspection + intention to replace IntRange.start/endInclusive with first/last
- [`KT-21195`](https://youtrack.jetbrains.com/issue/KT-21195) ReplaceWith intention could save generic type arguments
- [`KT-25262`](https://youtrack.jetbrains.com/issue/KT-25262) Intention: Rename class to containing file name
- [`KT-25439`](https://youtrack.jetbrains.com/issue/KT-25439) Inspection "Map replaceable with EnumMap"
- [`KT-26269`](https://youtrack.jetbrains.com/issue/KT-26269) Inspection to replace associate with associateWith or associateBy
- [`KT-26629`](https://youtrack.jetbrains.com/issue/KT-26629) Inspection to replace `==` operator on Double.NaN with `equals` call
- [`KT-27411`](https://youtrack.jetbrains.com/issue/KT-27411) Inspection and Quickfix to replace System.exit() with exitProcess()
- [`KT-29344`](https://youtrack.jetbrains.com/issue/KT-29344) Convert property initializer to getter: suggest on property name
- [`KT-29666`](https://youtrack.jetbrains.com/issue/KT-29666) Quickfix for "DEPRECATED_JAVA_ANNOTATION": migrate arguments
- [`KT-29798`](https://youtrack.jetbrains.com/issue/KT-29798) Add 'Covariant equals' inspection
- [`KT-29799`](https://youtrack.jetbrains.com/issue/KT-29799) Inspection: class with non-null self-reference as a parameter in its primary constructor
- [`KT-30078`](https://youtrack.jetbrains.com/issue/KT-30078) Add "Add getter/setter" quick fix for uninitialized property
- [`KT-30381`](https://youtrack.jetbrains.com/issue/KT-30381) Inspection + quickfix to replace non-null assertion with return
- [`KT-30389`](https://youtrack.jetbrains.com/issue/KT-30389) Fix to convert argument to Int: suggest roundToInt()
- [`KT-30501`](https://youtrack.jetbrains.com/issue/KT-30501) Add inspection to replace filter { it is Foo } with filterIsInstance<Foo> and filter { it != null } with filterNotNull
- [`KT-30612`](https://youtrack.jetbrains.com/issue/KT-30612) Unused symbol inspection should detect enum entry
- [`KT-30663`](https://youtrack.jetbrains.com/issue/KT-30663) Fully qualified name is added on quick fix for original class name if import alias exists
- [`KT-30725`](https://youtrack.jetbrains.com/issue/KT-30725) Inspection which replaces `.sorted().first()` with `.min()`

#### Fixes

- [`KT-5412`](https://youtrack.jetbrains.com/issue/KT-5412) "Replace non-null assertion with `if` expression" should replace parent expression
- [`KT-13549`](https://youtrack.jetbrains.com/issue/KT-13549) "Package directive doesn't match file location" for root package
- [`KT-14040`](https://youtrack.jetbrains.com/issue/KT-14040) Secondary enum class constructor is marked as "unused" by IDE
- [`KT-18459`](https://youtrack.jetbrains.com/issue/KT-18459) Spring: "Autowiring for Bean Class (Kotlin)" inspection adds not working `@Named` annotation to property
- [`KT-21526`](https://youtrack.jetbrains.com/issue/KT-21526) used class is marked as "never used"
- [`KT-22896`](https://youtrack.jetbrains.com/issue/KT-22896) "Change function signature" quickfix on "x overrides nothing" doesn't rename type arguments
- [`KT-27089`](https://youtrack.jetbrains.com/issue/KT-27089) ReplaceWith quickfix doesn't take into account generic parameter
- [`KT-27821`](https://youtrack.jetbrains.com/issue/KT-27821) SimplifiableCallChain inspection quick fix removes comments for intermediate operations
- [`KT-28485`](https://youtrack.jetbrains.com/issue/KT-28485) Incorrect parameter name after running "Add parameter to function" intention when argument variable is upper case const
- [`KT-28619`](https://youtrack.jetbrains.com/issue/KT-28619) "Add braces to 'if' statement" moves end-of-line comment inside an `if` branch if statement inside `if` is block
- [`KT-29556`](https://youtrack.jetbrains.com/issue/KT-29556) "Remove redundant 'let' call" doesn't rename parameter with convention `invoke` call
- [`KT-29677`](https://youtrack.jetbrains.com/issue/KT-29677) "Specify type explicitly" intention produces invalid output for type escaped with backticks
- [`KT-29764`](https://youtrack.jetbrains.com/issue/KT-29764) "Convert property to function" intention doesn't warn about the property overloads at child class constructor
- [`KT-29812`](https://youtrack.jetbrains.com/issue/KT-29812) False positive for HasPlatformType with member extension on 'dynamic'
- [`KT-29869`](https://youtrack.jetbrains.com/issue/KT-29869) 'WhenWithOnlyElse': possibly useless inspection with false grey warning highlighting during editing the code
- [`KT-30038`](https://youtrack.jetbrains.com/issue/KT-30038) 'Remove redundant Unit" false positive when return type is nullable Unit
- [`KT-30082`](https://youtrack.jetbrains.com/issue/KT-30082) False positive "redundant `.let` call" for lambda functions stored in nullable references
- [`KT-30173`](https://youtrack.jetbrains.com/issue/KT-30173) "Nested lambda has shadowed implicit parameter" is suggested when both parameters are logically the same
- [`KT-30208`](https://youtrack.jetbrains.com/issue/KT-30208) Convert to anonymous object: lambda generic type argument is lost
- [`KT-30215`](https://youtrack.jetbrains.com/issue/KT-30215) No "surround with null" check is suggested for an assignment
- [`KT-30228`](https://youtrack.jetbrains.com/issue/KT-30228) 'Convert to also/apply/run/with' intention behaves differently depending on the position of infix function call
- [`KT-30457`](https://youtrack.jetbrains.com/issue/KT-30457) MoveVariableDeclarationIntoWhen: do not report gray warning on variable declarations taking multiple lines / containing preemptive returns
- [`KT-30481`](https://youtrack.jetbrains.com/issue/KT-30481) Do not report ImplicitNullableNothingType on a function/property that overrides a function/property of type 'Nothing?'
- [`KT-30527`](https://youtrack.jetbrains.com/issue/KT-30527) False positive "Type alias is never used" with import of enum member
- [`KT-30559`](https://youtrack.jetbrains.com/issue/KT-30559) Redundant Getter, Redundant Setter: reduce range to getter/setter header
- [`KT-30565`](https://youtrack.jetbrains.com/issue/KT-30565) False positive "Suspicious 'var' property" inspection with annotated default property getter
- [`KT-30579`](https://youtrack.jetbrains.com/issue/KT-30579) Kotlin-gradle groovy inspections should depend on Groovy plugin
- [`KT-30613`](https://youtrack.jetbrains.com/issue/KT-30613) "Convert to anonymous function" should not insert named argument when interoping with Java functions
- [`KT-30614`](https://youtrack.jetbrains.com/issue/KT-30614) String templates suggest removing curly braces for backtick escaped identifiers
- [`KT-30622`](https://youtrack.jetbrains.com/issue/KT-30622) Add names to call arguments starting from given argument
- [`KT-30637`](https://youtrack.jetbrains.com/issue/KT-30637) False positive "unused constructor" for local class
- [`KT-30669`](https://youtrack.jetbrains.com/issue/KT-30669) Import quick fix does not work for property/function with original name if import alias for them exist
- [`KT-30761`](https://youtrack.jetbrains.com/issue/KT-30761) Replace assert boolean with assert equality produces uncompilable code when compared arguments type are different
- [`KT-30769`](https://youtrack.jetbrains.com/issue/KT-30769) Override quickfix creates "sealed fun"
- [`KT-30833`](https://youtrack.jetbrains.com/issue/KT-30833) Exception after "Introduce Import Alias" if invoke in import
- [`KT-30876`](https://youtrack.jetbrains.com/issue/KT-30876) SimplifyNotNullAssert inspection changes semantics
- [`KT-30900`](https://youtrack.jetbrains.com/issue/KT-30900) Invert 'if' condition respects neither code formatting nor inline comments
- [`KT-30910`](https://youtrack.jetbrains.com/issue/KT-30910) "Use property access syntax" is not suitable as text for inspection problem text
- [`KT-30916`](https://youtrack.jetbrains.com/issue/KT-30916) Quickfix "Remove redundant qualifier name" can't work with user type with generic parameter
- [`KT-31103`](https://youtrack.jetbrains.com/issue/KT-31103) Don't invoke Gradle related inspections when Gradle plugin is disabled
- [`KT-31349`](https://youtrack.jetbrains.com/issue/KT-31349) Add name to argument should not be suggested for Java library classes
- [`KT-31404`](https://youtrack.jetbrains.com/issue/KT-31404) Redundant 'requireNotNull' or 'checkNotNull' inspection: don't remove first argument
- [`KT-25465`](https://youtrack.jetbrains.com/issue/KT-25465) "Redundant 'suspend' modifier" with suspend operator invoke
- [`KT-26337`](https://youtrack.jetbrains.com/issue/KT-26337) Exception (resource not found) in quick-fix tests in AS32
- [`KT-30879`](https://youtrack.jetbrains.com/issue/KT-30879) False positive "Redundant qualifier name"
- [`KT-31415`](https://youtrack.jetbrains.com/issue/KT-31415) UI hangs due to long computations for "Use property access syntax" intention with new inference
- [`KT-31441`](https://youtrack.jetbrains.com/issue/KT-31441) False positive "Remove explicit type arguments" inspection for projection type
- [`KT-30970`](https://youtrack.jetbrains.com/issue/KT-30970) No warning for empty `if` operator and `also`method
- [`KT-31855`](https://youtrack.jetbrains.com/issue/KT-31855) IDE + new inference: Java SAM conversion is not suggested by IDE services

### IDE. JS

- [`KT-31895`](https://youtrack.jetbrains.com/issue/KT-31895) New Project wizard: Kotlin Gradle + Kotlin/JS for Node.js: incorrect DSL is inserted

### IDE. Libraries

- [`KT-30790`](https://youtrack.jetbrains.com/issue/KT-30790) Unstable IDE navigation behavior to `expect`/`actual` symbols in stdlib
- [`KT-30821`](https://youtrack.jetbrains.com/issue/KT-30821) K/N: Navigation downwards the hierarchy in stdlib source code opens to stubs

### IDE. Misc

- [`KT-31364`](https://youtrack.jetbrains.com/issue/KT-31364) IntelliJ routinely hangs and spikes CPU / Memory usage when editing kotlin files

### IDE. Navigation

- [`KT-18322`](https://youtrack.jetbrains.com/issue/KT-18322) Find Usages not finding Java usage of @JvmField declared in primary constructor
- [`KT-27332`](https://youtrack.jetbrains.com/issue/KT-27332) Gutter icons are still shown even if disabled

### IDE. Refactorings

- [`KT-30471`](https://youtrack.jetbrains.com/issue/KT-30471) Make `KotlinElementActionsFactory.createChangeParametersActions` able to just add parameters

### IDE. Run Configurations

- [`KT-29352`](https://youtrack.jetbrains.com/issue/KT-29352) Kotlin + Java 11 + Windows : impossible to run applications with long command lines, even with dynamic.classpath=true

### IDE. Scratch

- [`KT-29642`](https://youtrack.jetbrains.com/issue/KT-29642) Once hidden, `Scratch Output` window wouldn't show the results unless the project is reopened

### IDE. Script

- [`KT-30295`](https://youtrack.jetbrains.com/issue/KT-30295) Resolver for 'completion/highlighting in  ScriptDependenciesSourceInfo...' does not know how to resolve [] or [Library(null)]
- [`KT-30690`](https://youtrack.jetbrains.com/issue/KT-30690) Highlighting for scripts in diff view doesn't work for left part
- [`KT-31452`](https://youtrack.jetbrains.com/issue/KT-31452) IDE editor: MISSING_SCRIPT_STANDARD_TEMPLATE is reported inconsistently with the single line in script

### IDE. Tests Support

- [`KT-30995`](https://youtrack.jetbrains.com/issue/KT-30995) Gradle test runner: "No tasks available" for a test class in non-MPP project

### IDE. Ultimate

- [`KT-30886`](https://youtrack.jetbrains.com/issue/KT-30886) KotlinIdeaResolutionException in Velocity template (.ft) with Kotlin code

### IDE. Wizards

- [`KT-30645`](https://youtrack.jetbrains.com/issue/KT-30645) Update New Project Wizard templates related to Kotlin/JS
- [`KT-31099`](https://youtrack.jetbrains.com/issue/KT-31099) Remove Gradle configuration boilerplate for JS from multiplatform New Project Wizard templates related to Kotlin/JS
- [`KT-31695`](https://youtrack.jetbrains.com/issue/KT-31695) Gradle, JS: update wizard templates

### JS. Tools

- [`KT-31563`](https://youtrack.jetbrains.com/issue/KT-31563) Gradle/JS: npmResolve fails with "Invalid version" when user project's version does not match npm rules
- [`KT-31566`](https://youtrack.jetbrains.com/issue/KT-31566) Gradle/JS: with explicit call to `nodejs { testTask { useNodeJs() } }` configuration fails : "Could not find which method to invoke"
- [`KT-31560`](https://youtrack.jetbrains.com/issue/KT-31560) Gradle: provide descriptions for JS tasks
- [`KT-31564`](https://youtrack.jetbrains.com/issue/KT-31564) Gradle/JS: npmResolve reports warning "karma-webpack@3.0.5 has unmet peer dependency"
- [`KT-31662`](https://youtrack.jetbrains.com/issue/KT-31662) Gradle/JS: with empty `useKarma {}` lambda the execution of `jsBrowserTest` never stops
- [`KT-31686`](https://youtrack.jetbrains.com/issue/KT-31686) Gradle/JS: useKarma { useConfigDirectory() } fails to configure
- [`KT-31694`](https://youtrack.jetbrains.com/issue/KT-31694) Gradle, NPM, windows: creating symlink requires administrator privilege
- [`KT-31931`](https://youtrack.jetbrains.com/issue/KT-31931) Gradle JS or Native: test processing fails in some cases

### JavaScript

- [`KT-31007`](https://youtrack.jetbrains.com/issue/KT-31007) Kotlin/JS 1.3.30 - private method in an interface in the external library causes ReferenceError

### Libraries

- [`KT-30174`](https://youtrack.jetbrains.com/issue/KT-30174) Annotation for experimental stdlib API
- [`KT-30451`](https://youtrack.jetbrains.com/issue/KT-30451) Redundant call of selector in maxBy&minBy
- [`KT-30560`](https://youtrack.jetbrains.com/issue/KT-30560) Fix Throwable::addSuppressed from stdlib to make it work without stdlib-jdk7 in runtime
- [`KT-24810`](https://youtrack.jetbrains.com/issue/KT-24810) Support common string<->ByteArray UTF-8 conversion
- [`KT-29265`](https://youtrack.jetbrains.com/issue/KT-29265) String.toCharArray() is not available in common stdlib
- [`KT-31194`](https://youtrack.jetbrains.com/issue/KT-31194) assertFails and assertFailsWith don't work with suspend functions
- [`KT-31639`](https://youtrack.jetbrains.com/issue/KT-31639) 'Iterbale.drop' drops too much because of overflow
- [`KT-28933`](https://youtrack.jetbrains.com/issue/KT-28933) capitalize() with Locale argument in the JDK stdlib

### Reflection

- [`KT-29041`](https://youtrack.jetbrains.com/issue/KT-29041) KAnnotatedElement should have an extension function to verify if certain annotation is present
- [`KT-30344`](https://youtrack.jetbrains.com/issue/KT-30344) Avoid using .kotlin_module in kotlin-reflect

### Tools. Android Extensions

- [`KT-30993`](https://youtrack.jetbrains.com/issue/KT-30993) Android Extensions: Make @Parcelize functionality non-experimental

### Tools. CLI

- [`KT-27638`](https://youtrack.jetbrains.com/issue/KT-27638) Add -Xjava-sources compiler argument to specify directories with .java source files which can be referenced from the compiled Kotlin sources
- [`KT-27778`](https://youtrack.jetbrains.com/issue/KT-27778) Add -Xpackage-prefix compiler argument to specify package prefix for Java sources resolution
- [`KT-30973`](https://youtrack.jetbrains.com/issue/KT-30973) Compilation on IBM J9 (build 2.9, JRE 1.8.0 AIX ppc64-64-Bit) fails unless -Xuse-javac is specified

### Tools. Compiler Plugins

- [`KT-30343`](https://youtrack.jetbrains.com/issue/KT-30343) Add new Quarkus preset to all-open compiler plugin

### Tools. Gradle

#### New Features

- [`KT-20156`](https://youtrack.jetbrains.com/issue/KT-20156) Publish the Kotlin Javascript Gradle plugin to the Gradle Plugins Portal
- [`KT-26256`](https://youtrack.jetbrains.com/issue/KT-26256) In new MPP, support Java compilation in JVM targets
- [`KT-27273`](https://youtrack.jetbrains.com/issue/KT-27273) Support the Gradle 'application' plugin in new MPP or provide an alternative
- [`KT-30528`](https://youtrack.jetbrains.com/issue/KT-30528) Gradle, JS tests: support basic builtin test runner
- [`KT-31015`](https://youtrack.jetbrains.com/issue/KT-31015) Gradle, JS: Change default for new kotlin-js and experimental kotlin-multiplatform plugins
- [`KT-30573`](https://youtrack.jetbrains.com/issue/KT-30573) Gradle, JS: enable source maps by default, change paths relative to node_modules directory
- [`KT-30747`](https://youtrack.jetbrains.com/issue/KT-30747) Gradle, JS tests: provide option to disable test configuration per target
- [`KT-31010`](https://youtrack.jetbrains.com/issue/KT-31010) Gradle, JS tests: Mocha
- [`KT-31011`](https://youtrack.jetbrains.com/issue/KT-31011) Gradle, JS tests: Karma
- [`KT-31013`](https://youtrack.jetbrains.com/issue/KT-31013) Gradle, JS: Webpack
- [`KT-31016`](https://youtrack.jetbrains.com/issue/KT-31016) Gradle: yarn downloading
- [`KT-31017`](https://youtrack.jetbrains.com/issue/KT-31017) Gradle, yarn: support workspaces

#### Fixes

- [`KT-13256`](https://youtrack.jetbrains.com/issue/KT-13256) CompileJava tasks in Kotlin2Js Gradle plugin
- [`KT-16355`](https://youtrack.jetbrains.com/issue/KT-16355) Rename "compileKotlin2Js" Gradle task to "compileKotlinJs"
- [`KT-26255`](https://youtrack.jetbrains.com/issue/KT-26255) Using the jvmWithJava preset in new MPP leads to counter-intuitive source set names and directory structure
- [`KT-27640`](https://youtrack.jetbrains.com/issue/KT-27640) Do not use `-Xbuild-file` when invoking the Kotlin compiler in Gradle plugins
- [`KT-29284`](https://youtrack.jetbrains.com/issue/KT-29284) kotlin2js plugin applies java plugin
- [`KT-30132`](https://youtrack.jetbrains.com/issue/KT-30132) Could not initialize class org.jetbrains.kotlin.com.intellij.openapi.util.io.FileUtil on build by gradle
- [`KT-30596`](https://youtrack.jetbrains.com/issue/KT-30596) Kotlin Gradle Plugin: Forward stdout and stderr logger of out of process though gradle logger
- [`KT-31106`](https://youtrack.jetbrains.com/issue/KT-31106) Kotlin compilation fails with locked build script dependencies and Gradle 5
- [`KT-28985`](https://youtrack.jetbrains.com/issue/KT-28985) Java tests not executed in a module created with presets.jvmWithJava
- [`KT-30340`](https://youtrack.jetbrains.com/issue/KT-30340) kotlin("multiplatform") plugin is not working properly with Spring Boot
- [`KT-30784`](https://youtrack.jetbrains.com/issue/KT-30784) Deprecation warning "API 'variant.getPackageLibrary()' is obsolete and has been replaced with 'variant.getPackageLibraryProvider()'" for a multiplatform library with Android target
- [`KT-31027`](https://youtrack.jetbrains.com/issue/KT-31027) java.lang.NoSuchMethodError: No static method hashCode(Z)I in class Ljava/lang/Boolean; or its super classes (declaration of 'java.lang.Boolean' appears in /system/framework/core-libart.jar)
- [`KT-31696`](https://youtrack.jetbrains.com/issue/KT-31696) Gradle, NPM: select one version between tools and all of compile configurations
- [`KT-31697`](https://youtrack.jetbrains.com/issue/KT-31697) Gradle, NPM: report about clashes in packages_imported
- [`KT-31891`](https://youtrack.jetbrains.com/issue/KT-31891) Gradle: JS or Native tests execution: `build --scan` fails with ISE "Expected attachment of type ... but did not find it"
- [`KT-31023`](https://youtrack.jetbrains.com/issue/KT-31023) Update Gradle module metadata warning in MPP publishing

### Tools. Incremental Compile

- [`KT-31131`](https://youtrack.jetbrains.com/issue/KT-31131) Regression: incremental compilation of multi-file part throws exception

### Tools. J2K

- [`KT-23023`](https://youtrack.jetbrains.com/issue/KT-23023) J2K: Inspection to convert Arrays.copyOf(a, size) to a.copyOf(size)
- [`KT-26550`](https://youtrack.jetbrains.com/issue/KT-26550) J2K: Check context/applicability of conversion, don't suggest for libraries, jars, etc.
- [`KT-29568`](https://youtrack.jetbrains.com/issue/KT-29568) Disabled "Convert Java File to Kotlin File" action is shown in project view context menu for XML files

### Tools. JPS

- [`KT-13563`](https://youtrack.jetbrains.com/issue/KT-13563) Kotlin jps-plugin should allow to instrument bytecode from Intellij IDEA.

### Tools. REPL

- [`KT-21443`](https://youtrack.jetbrains.com/issue/KT-21443) Kotlin's JSR223 script engine does not work when used by a fat jar 

### Tools. Scripts

- [`KT-30986`](https://youtrack.jetbrains.com/issue/KT-30986) Missing dependencies when JSR-223 script engines are used from `kotlin-script-util`

### Tools. kapt

- [`KT-26203`](https://youtrack.jetbrains.com/issue/KT-26203) `kapt.use.worker.api=true` throws a NullPointerException on Java 10/11
- [`KT-30739`](https://youtrack.jetbrains.com/issue/KT-30739) Kapt generated sources are not visible from the IDE when "Create separate module per source set" is disabled
- [`KT-31064`](https://youtrack.jetbrains.com/issue/KT-31064) Periodically build crash when using incremental kapt
- [`KT-23880`](https://youtrack.jetbrains.com/issue/KT-23880) Kapt: Support incremental annotation processors
- [`KT-31322`](https://youtrack.jetbrains.com/issue/KT-31322) Kapt does not run annotation processing when sources change.
- [`KT-30979`](https://youtrack.jetbrains.com/issue/KT-30979) Issue with Dagger2 providers MissingBinding with 1.3.30
- [`KT-31127`](https://youtrack.jetbrains.com/issue/KT-31127) Kotlin-generating processor which uses Filer API breaks JavaCompile task
- [`KT-31714`](https://youtrack.jetbrains.com/issue/KT-31714) incremental kapt: FileSystemException: Too many open files

## 1.3.31

### Compiler

#### Fixes

- [`KT-26418`](https://youtrack.jetbrains.com/issue/KT-26418) Back-end (JVM) Internal error when compiling decorated suspend inline functions
- [`KT-26925`](https://youtrack.jetbrains.com/issue/KT-26925) Decorated suspend inline function continuation resumes in wrong spot
- [`KT-30706`](https://youtrack.jetbrains.com/issue/KT-30706) Passing noinline lambda as (cross)inline parameter result in wrong state-machine
- [`KT-30707`](https://youtrack.jetbrains.com/issue/KT-30707) Java interop of coroutines inside inline functions is broken
- [`KT-30997`](https://youtrack.jetbrains.com/issue/KT-30997) Crash with suspend crossinline

### IDE. Inspections and Intentions

- [`KT-30879`](https://youtrack.jetbrains.com/issue/KT-30879) False positive "Redundant qualifier name"
- [`KT-31112`](https://youtrack.jetbrains.com/issue/KT-31112) "Remove redundant qualifier name" inspection false positive for property with irrelevant import

### JavaScript

- [`KT-31007`](https://youtrack.jetbrains.com/issue/KT-31007) Kotlin/JS 1.3.30 - private method in an interface in the external library causes ReferenceError

### Tools. Gradle

- [`KT-31027`](https://youtrack.jetbrains.com/issue/KT-31027) java.lang.NoSuchMethodError: No static method hashCode(Z)I in class Ljava/lang/Boolean; or its super classes (declaration of 'java.lang.Boolean' appears in /system/framework/core-libart.jar)

### Tools. kapt

- [`KT-30979`](https://youtrack.jetbrains.com/issue/KT-30979) Issue with Dagger2 providers MissingBinding with 1.3.30

## 1.3.30

### Compiler

#### New Features

- [`KT-19664`](https://youtrack.jetbrains.com/issue/KT-19664) Allow more permissive visibility for non-virtual actual declarations
- [`KT-29586`](https://youtrack.jetbrains.com/issue/KT-29586) Add support for Android platform annotations
- [`KT-29604`](https://youtrack.jetbrains.com/issue/KT-29604) Do not implicitly propagate deprecations originated in Java

#### Performance Improvements

- [`KT-24876`](https://youtrack.jetbrains.com/issue/KT-24876) Emit calls to java.lang.Long.divideUnsigned for unsigned types when target version is 1.8
- [`KT-25974`](https://youtrack.jetbrains.com/issue/KT-25974) 'when' by unsigned integers is not translated to tableswitch/lookupswitch
- [`KT-28015`](https://youtrack.jetbrains.com/issue/KT-28015) Coroutine state-machine shall use Result.throwOnFailure
- [`KT-29229`](https://youtrack.jetbrains.com/issue/KT-29229) Intrinsify 'in' operator for unsigned integer ranges
- [`KT-29230`](https://youtrack.jetbrains.com/issue/KT-29230) Specialize 'next' method call for unsigned integer range and progression iterators

#### Fixes

- [`KT-7185`](https://youtrack.jetbrains.com/issue/KT-7185) Parse import directives in the middle of the file, report a diagnostic instead
- [`KT-7237`](https://youtrack.jetbrains.com/issue/KT-7237) Parser recovery (angle bracket mismatch)
- [`KT-11656`](https://youtrack.jetbrains.com/issue/KT-11656) Could not generate LightClass because of ISE from bridge generation on invalid code
- [`KT-13497`](https://youtrack.jetbrains.com/issue/KT-13497) Better recovery in comma-separated lists in case of missing comma
- [`KT-13703`](https://youtrack.jetbrains.com/issue/KT-13703) Restore parser better when `class` is missing from `enum` declaration
- [`KT-13731`](https://youtrack.jetbrains.com/issue/KT-13731) Recover parser on value parameter without a type
- [`KT-14227`](https://youtrack.jetbrains.com/issue/KT-14227) Incorrect code is generated when using MutableMap.set with plusAssign operator
- [`KT-19389`](https://youtrack.jetbrains.com/issue/KT-19389) Couldn't inline method call 'with'
- [`KT-20065`](https://youtrack.jetbrains.com/issue/KT-20065) "Cannot serialize error type: [ERROR : Unknown type parameter 0]" with generic typealias
- [`KT-20322`](https://youtrack.jetbrains.com/issue/KT-20322) Debug: member value returned from suspending function is not updated immediately 
- [`KT-20780`](https://youtrack.jetbrains.com/issue/KT-20780) "Cannot serialize error type: [ERROR : Unknown type parameter 0]" with parameterized inner type alias
- [`KT-21405`](https://youtrack.jetbrains.com/issue/KT-21405) Throwable “Rewrite at slice LEXICAL_SCOPE key: VALUE_PARAMETER_LIST” on editing string literal in kotlin-js module
- [`KT-21775`](https://youtrack.jetbrains.com/issue/KT-21775) "Cannot serialize error type: [ERROR : Unknown type parameter 0]" with typealias used from a different module
- [`KT-22818`](https://youtrack.jetbrains.com/issue/KT-22818) "UnsupportedOperationException: Don't know how to generate outer expression" on using non-trivial expression in default argument of `expect` function
- [`KT-23117`](https://youtrack.jetbrains.com/issue/KT-23117) Local delegate + local object = NoSuchMethodError
- [`KT-23701`](https://youtrack.jetbrains.com/issue/KT-23701) Report error when -Xmultifile-parts-inherit is used and relevant JvmMultifileClass parts have any state
- [`KT-23992`](https://youtrack.jetbrains.com/issue/KT-23992) Target prefixes for annotations on supertype list elements are not checked
- [`KT-24490`](https://youtrack.jetbrains.com/issue/KT-24490) Wrong type is inferred when last expression in lambda has functional type
- [`KT-24871`](https://youtrack.jetbrains.com/issue/KT-24871) Optimize iteration and contains for UIntRange/ULongRange
- [`KT-24964`](https://youtrack.jetbrains.com/issue/KT-24964) "Cannot serialize error type: [ERROR : Unknown type parameter 0]" with `Validated` typealias from Arrow
- [`KT-25383`](https://youtrack.jetbrains.com/issue/KT-25383) Named function as last statement in lambda doesn't coerce to Unit
- [`KT-25431`](https://youtrack.jetbrains.com/issue/KT-25431) Type mismatch when trying to bind mutable property with complex common system
- [`KT-25435`](https://youtrack.jetbrains.com/issue/KT-25435) Try/catch as the last expression of lambda cause type mismatch
- [`KT-25437`](https://youtrack.jetbrains.com/issue/KT-25437) Type variable fixation of postponed arguments and type variables with Nothing constraint
- [`KT-25446`](https://youtrack.jetbrains.com/issue/KT-25446) Empty labeled return doesn't force coercion to Unit
- [`KT-26069`](https://youtrack.jetbrains.com/issue/KT-26069) NoSuchMethodError on calling remove/getOrDefault on a Kotlin subclass of Java subclass of Map
- [`KT-26638`](https://youtrack.jetbrains.com/issue/KT-26638) Check for repeatablilty of annotations doesn't take into account annotations with use-site target
- [`KT-26816`](https://youtrack.jetbrains.com/issue/KT-26816) Lambdas to Nothing is inferred if multilevel collections is used (listOf, mapOf, etc)
- [`KT-27190`](https://youtrack.jetbrains.com/issue/KT-27190) State machine elimination after inlining stopped working (regression)
- [`KT-27241`](https://youtrack.jetbrains.com/issue/KT-27241) Contracts: smartcasts don't work correctly if type checking for contract function is used
- [`KT-27565`](https://youtrack.jetbrains.com/issue/KT-27565) Lack of fallback resolution for SAM conversions for Kotlin functions in new inference
- [`KT-27799`](https://youtrack.jetbrains.com/issue/KT-27799) Prohibit references to reified type parameters in annotation arguments in local classes / anonymous objects
- [`KT-28182`](https://youtrack.jetbrains.com/issue/KT-28182) Kotlin Bytecode tool window shows incorrect output on annotated property with backing field
- [`KT-28236`](https://youtrack.jetbrains.com/issue/KT-28236) "Cannot serialize error type: [ERROR : Unknown type parameter 2]" with inferred type arguments in generic extension function from Arrow
- [`KT-28309`](https://youtrack.jetbrains.com/issue/KT-28309) Do not generate LVT entries with different types pointing to the same slot, but have different types
- [`KT-28317`](https://youtrack.jetbrains.com/issue/KT-28317) Strange behavior in testJvmAssertInlineFunctionAssertionsEnabled on Jdk 6 and exception on JDK 8
- [`KT-28453`](https://youtrack.jetbrains.com/issue/KT-28453) Mark anonymous classes for callable references as synthetic
- [`KT-28598`](https://youtrack.jetbrains.com/issue/KT-28598) Type is inferred incorrectly to Any on a deep generic type with out projection
- [`KT-28654`](https://youtrack.jetbrains.com/issue/KT-28654) No report about type mismatch inside a lambda in generic functions with a type parameter as a return type
- [`KT-28670`](https://youtrack.jetbrains.com/issue/KT-28670) Not null smartcasts on an intersection of nullable types don't work
- [`KT-28718`](https://youtrack.jetbrains.com/issue/KT-28718) progressive mode plus new inference result in different floating-point number comparisons
- [`KT-28810`](https://youtrack.jetbrains.com/issue/KT-28810) Suspend function's continuation parameter is missing from LVT
- [`KT-28855`](https://youtrack.jetbrains.com/issue/KT-28855) NoSuchMethodError with vararg of unsigned Int in generic class constructor
- [`KT-28984`](https://youtrack.jetbrains.com/issue/KT-28984) Exception when subtype of kotlin.Function is used as an expected one for lambda or callable reference
- [`KT-28993`](https://youtrack.jetbrains.com/issue/KT-28993) Incorrect behavior when two lambdas are passed outside a parenthesized argument list
- [`KT-29144`](https://youtrack.jetbrains.com/issue/KT-29144) Interface with companion object generates invalid bytecode in progressive mode
- [`KT-29228`](https://youtrack.jetbrains.com/issue/KT-29228) Intrinsify 'for' loop for unsigned integer ranges and progressions
- [`KT-29324`](https://youtrack.jetbrains.com/issue/KT-29324) Warnings indexing jdk 11 classes
- [`KT-29367`](https://youtrack.jetbrains.com/issue/KT-29367) New inference doesn't wrap annotated type from java to TypeWithEnhancement
- [`KT-29507`](https://youtrack.jetbrains.com/issue/KT-29507) @field-targeted annotation on property with both getter and setter is absent from bytecode
- [`KT-29705`](https://youtrack.jetbrains.com/issue/KT-29705) 'Rewrite at slice CONSTRUCTOR` of JS class while editing another JVM-class
- [`KT-29792`](https://youtrack.jetbrains.com/issue/KT-29792) UnsupportedOperationException: Unsupported annotation argument type when using Java annotation with infinity or NaN as a default value
- [`KT-29891`](https://youtrack.jetbrains.com/issue/KT-29891) Kotlin doesn't allow to use local class literals as annotation arguments
- [`KT-29912`](https://youtrack.jetbrains.com/issue/KT-29912) Crossinline nonsuspend lambda leads to KNPE during inlining
- [`KT-29965`](https://youtrack.jetbrains.com/issue/KT-29965) Don't generate annotation on $default  method
- [`KT-30030`](https://youtrack.jetbrains.com/issue/KT-30030) Extensive 'Rewrite at slice'-exception with contracts in JS module of multiplatform project
- [`KT-22043`](https://youtrack.jetbrains.com/issue/KT-22043) Report an error when comparing enum (==/!=/when) to any other incompatible type since 1.4
- [`KT-26150`](https://youtrack.jetbrains.com/issue/KT-26150) KotlinFrontendException is thrown when callsInPlace called twice with different InvocationKind in functions with contracts
- [`KT-26153`](https://youtrack.jetbrains.com/issue/KT-26153) Contract is allowed when it's at the beginning in control flow terms, but not in tokens order terms (contract doesn't work)
- [`KT-26191`](https://youtrack.jetbrains.com/issue/KT-26191) Contract may not be the first statement if it's part of the expression
- [`KT-29178`](https://youtrack.jetbrains.com/issue/KT-29178) Prohibit arrays of reified type parameters in annotation arguments in local classes / anonymous objects
- [`KT-20507`](https://youtrack.jetbrains.com/issue/KT-20507) PROTECTED_CONSTRUCTOR_NOT_IN_SUPER_CALL not reported for generic base class constructor call, IAE at run-time
- [`KT-20849`](https://youtrack.jetbrains.com/issue/KT-20849) Inference results in Nothing type argument in case of passing 'out T' to 'in T1'
- [`KT-28285`](https://youtrack.jetbrains.com/issue/KT-28285) NullPointerException on calling Array constructor compiled via Excelsior JET
- [`KT-29376`](https://youtrack.jetbrains.com/issue/KT-29376) Report a deprecation warning when comparing enum to any other incompatible type
- [`KT-29884`](https://youtrack.jetbrains.com/issue/KT-29884) Report warning on @Synchronized on inline method
- [`KT-30073`](https://youtrack.jetbrains.com/issue/KT-30073) ClassCastException on coroutine start with crossinline lambda
- [`KT-30597`](https://youtrack.jetbrains.com/issue/KT-30597) "Extend selection" throws exception in empty class body case
- [`KT-29492`](https://youtrack.jetbrains.com/issue/KT-29492) Double cross-inline of suspending functions produces incorrect code
- [`KT-30508`](https://youtrack.jetbrains.com/issue/KT-30508) Wrong file name in metadata of suspend function capturing crossinline lambda
- [`KT-30679`](https://youtrack.jetbrains.com/issue/KT-30679) "KotlinFrontEndException: Front-end Internal error: Failed to analyze declaration" exception during a compilation of a multiplatform project containing Kotlin Script File

### IDE

#### New Features

- [`KT-26950`](https://youtrack.jetbrains.com/issue/KT-26950) Support Multiline TODO comments
- [`KT-29034`](https://youtrack.jetbrains.com/issue/KT-29034) Make JvmDeclarationSearch find private fields in kotlin classes

#### Performance Improvements

- [`KT-29457`](https://youtrack.jetbrains.com/issue/KT-29457) FindImplicitNothingAction#update freezes UI for 30 secs
- [`KT-29551`](https://youtrack.jetbrains.com/issue/KT-29551) CreateKotlinSdkActivity runs on UI thread

#### Fixes

- [`KT-11143`](https://youtrack.jetbrains.com/issue/KT-11143) Do not insert closing brace for string template between open brace and identifier
- [`KT-18503`](https://youtrack.jetbrains.com/issue/KT-18503) Optimize imports produces red code
- [`KT-27283`](https://youtrack.jetbrains.com/issue/KT-27283) KotlinULiteralExpression and PsiLanguageInjectionHost mismatch
- [`KT-27794`](https://youtrack.jetbrains.com/issue/KT-27794) KotlinAnnotatedElementsSearcher doesn't process method parameters
- [`KT-28272`](https://youtrack.jetbrains.com/issue/KT-28272) UAST: Need to be able to identify SAM conversions
- [`KT-28360`](https://youtrack.jetbrains.com/issue/KT-28360) Getting tons of "There are 2 classes with same fqName" logs in IntelliJ
- [`KT-28739`](https://youtrack.jetbrains.com/issue/KT-28739) Bad caret position after `Insert curly braces around variable` inspection
- [`KT-29013`](https://youtrack.jetbrains.com/issue/KT-29013) Injection with interpolation loses suffix
- [`KT-29025`](https://youtrack.jetbrains.com/issue/KT-29025) Implement `UReferenceExpression.referenceNameElement` for Kotlin
- [`KT-29287`](https://youtrack.jetbrains.com/issue/KT-29287) Exception in ultra-light classes on method annotated with @Throws
- [`KT-29381`](https://youtrack.jetbrains.com/issue/KT-29381) Highlight return lambda expressions when cursor is one the call with lambda argument
- [`KT-29434`](https://youtrack.jetbrains.com/issue/KT-29434) Can not detect injection host in string passed as argument into arrayOf() function
- [`KT-29464`](https://youtrack.jetbrains.com/issue/KT-29464) Project reopening does not create missing Kotlin SDK for Native modules (like it does for other non-JVM ones)
- [`KT-29467`](https://youtrack.jetbrains.com/issue/KT-29467) Maven/Gradle re-import does not add missing Kotlin SDK for kotlin2js modules (non-MPP JavaScript)
- [`KT-29804`](https://youtrack.jetbrains.com/issue/KT-29804) Probable error in the "Kotlin (Mobile Android/iOS)" new project template in IntelliJ
- [`KT-30033`](https://youtrack.jetbrains.com/issue/KT-30033) UAST: Delegation expression missing from parse tree
- [`KT-30388`](https://youtrack.jetbrains.com/issue/KT-30388) Disable constant exception reporting from release versions
- [`KT-30524`](https://youtrack.jetbrains.com/issue/KT-30524) "java.lang.IllegalStateException: This method shouldn't be invoked for LOCAL visibility" on add import
- [`KT-30534`](https://youtrack.jetbrains.com/issue/KT-30534) KotlinUObjectLiteralExpression returns classReference whose referenceNameElement is null
- [`KT-30546`](https://youtrack.jetbrains.com/issue/KT-30546) Kotlin UImportStatement's children references always resolve to null
- [`KT-5435`](https://youtrack.jetbrains.com/issue/KT-5435) Surround with try/catch should generate more Kotlin-style code

### IDE. Android

- [`KT-29847`](https://youtrack.jetbrains.com/issue/KT-29847) Many IDEA plugins are not loaded in presence of Kotlin plugin: "Plugins should not have cyclic dependencies"

### IDE. Code Style, Formatting

- [`KT-23295`](https://youtrack.jetbrains.com/issue/KT-23295) One-line comment indentation in functions with expression body 
- [`KT-28905`](https://youtrack.jetbrains.com/issue/KT-28905) When is "... if long" hitting?
- [`KT-29304`](https://youtrack.jetbrains.com/issue/KT-29304) Settings / Code Style / Kotlin mentions "methods" instead of functions
- [`KT-26954`](https://youtrack.jetbrains.com/issue/KT-26954) Bad indentation for single function with expression body in new code style

### IDE. Completion

- [`KT-18663`](https://youtrack.jetbrains.com/issue/KT-18663) Support "smart enter/complete statement" completion for method calls
- [`KT-28394`](https://youtrack.jetbrains.com/issue/KT-28394) Improve code completion for top level class/interface to incorporate filename
- [`KT-29435`](https://youtrack.jetbrains.com/issue/KT-29435) org.jetbrains.kotlin.types.TypeUtils.contains hanging forever and freezing IntelliJ
- [`KT-27915`](https://youtrack.jetbrains.com/issue/KT-27915) Stop auto-completing braces for companion objects

### IDE. Debugger

- [`KT-22250`](https://youtrack.jetbrains.com/issue/KT-22250) Evaluate: 'this' shows different values when evaluated as a variable/watch
- [`KT-24829`](https://youtrack.jetbrains.com/issue/KT-24829) Access to coroutineContext in 'Evaluate expression'
- [`KT-25220`](https://youtrack.jetbrains.com/issue/KT-25220) Evaluator: a instance of Pair returned instead of String ("Extract function" failed)
- [`KT-25222`](https://youtrack.jetbrains.com/issue/KT-25222) Evaluate: ClassCastException: ObjectValue cannot be cast to IntValue ("Extract function" failed)
- [`KT-26913`](https://youtrack.jetbrains.com/issue/KT-26913) Change local variable name mangling ($receiver -> this_<label>)
- [`KT-28087`](https://youtrack.jetbrains.com/issue/KT-28087) [Kotlin/JVM view] Inconsistent debugging data inside forEachIndexed
- [`KT-28134`](https://youtrack.jetbrains.com/issue/KT-28134) Separate JVM/Kotlin views in "Variables" tool window
- [`KT-28192`](https://youtrack.jetbrains.com/issue/KT-28192) Exception from KotlinEvaluator: cannot find local variable
- [`KT-28680`](https://youtrack.jetbrains.com/issue/KT-28680) Missing `this` word completion in "Evaluate expression" window
- [`KT-28728`](https://youtrack.jetbrains.com/issue/KT-28728) Async stack trace support for Kotlin coroutines
- [`KT-21650`](https://youtrack.jetbrains.com/issue/KT-21650) Debugger: Can't evaluate value, resolution error
- [`KT-23828`](https://youtrack.jetbrains.com/issue/KT-23828) Debugger: "Smart cast is impossible" when evaluating expression
- [`KT-29661`](https://youtrack.jetbrains.com/issue/KT-29661) Evaluate expression: "Cannot find local variable" for variable name escaped with backticks
- [`KT-29814`](https://youtrack.jetbrains.com/issue/KT-29814) Can't evaluate a property on star-projected type
- [`KT-29871`](https://youtrack.jetbrains.com/issue/KT-29871) Debugger in IDE does not handle correctly extensions.
- [`KT-30182`](https://youtrack.jetbrains.com/issue/KT-30182) Incorrect KT elvis expression debugger evaluation
- [`KT-29189`](https://youtrack.jetbrains.com/issue/KT-29189) [BE] 'Step Over' falls through 'return when' (and 'return if') instead of executing individual branches
- [`KT-29234`](https://youtrack.jetbrains.com/issue/KT-29234) ISE “@NotNull method org/jetbrains/kotlin/codegen/binding/CodegenBinding.anonymousClassForCallable must not return null” on debugging with breakpoints in Kotlin script file
- [`KT-29423`](https://youtrack.jetbrains.com/issue/KT-29423) Unable to evaluate lambdas on jdk 9-11
- [`KT-30220`](https://youtrack.jetbrains.com/issue/KT-30220) Empty variables view when breakpoint inside an lambda inside class
- [`KT-30318`](https://youtrack.jetbrains.com/issue/KT-30318) KotlinCoroutinesAsyncStackTraceProvider slows down java debugging
- [`KT-17811`](https://youtrack.jetbrains.com/issue/KT-17811) Couldn't inline method error for inline method with anonymous object initialization and reified type parameter
- [`KT-30611`](https://youtrack.jetbrains.com/issue/KT-30611) Debugger: in projects with stdlib of 1.2.n version Frames view can't complete loading, EvaluateException: "Method threw 'java.lang.ClassNotFoundException' exception." at EvaluateExceptionUtil.createEvaluateException()

### IDE. Decompiler

- [`KT-9618`](https://youtrack.jetbrains.com/issue/KT-9618) Exception in ClassClsStubBuilder.createNestedClassStub() while opening recent project
- [`KT-29427`](https://youtrack.jetbrains.com/issue/KT-29427) Exception in ClassClsStubBuilder.createNestedClassStub() for obfuscated library

### IDE. Gradle

- [`KT-26865`](https://youtrack.jetbrains.com/issue/KT-26865) Gradle build in IDE: error messages in Native sources are not hyperlinks
- [`KT-28515`](https://youtrack.jetbrains.com/issue/KT-28515) Failed to import Kotlin project with gradle 5.0
- [`KT-29564`](https://youtrack.jetbrains.com/issue/KT-29564) kotlin.parallel.tasks.in.project=true causes idea to create kotlin modules with target JVM 1.6
- [`KT-30076`](https://youtrack.jetbrains.com/issue/KT-30076) Memory leaks in Kotlin import
- [`KT-30379`](https://youtrack.jetbrains.com/issue/KT-30379) Gradle 5.3 publishes an MPP with broken Maven scope mapping

### IDE. Gradle. Script

- [`KT-27684`](https://youtrack.jetbrains.com/issue/KT-27684) Gradle Kotlin DSL: the `rootProject` field is unresolved in IDEA for a common module
- [`KT-29465`](https://youtrack.jetbrains.com/issue/KT-29465) IndexNotReadyException on context menu invocation for build.gradle.kts file
- [`KT-29707`](https://youtrack.jetbrains.com/issue/KT-29707) "Navigate declaration" navigates to compiled class in gradle cache folder instead of classes defined in gradle buildSrc folder
- [`KT-29832`](https://youtrack.jetbrains.com/issue/KT-29832) Multiple Script Definitions for settings.gradle.kts
- [`KT-30623`](https://youtrack.jetbrains.com/issue/KT-30623) Errors in build.gradle.kts after applying new script dependencies
- [`KT-29474`](https://youtrack.jetbrains.com/issue/KT-29474) Regression in 1.3.20: Kotlin IDE plugin parses all *.gradle.kts files when any class in buildSrc is opened
- [`KT-30130`](https://youtrack.jetbrains.com/issue/KT-30130) “Access is allowed from event dispatch thread only.” from ScriptNewDependenciesNotificationKt.removeScriptDependenciesNotificationPanel() on creating foo.gradle.kts files in IJ from master

### IDE. Hints

- [`KT-29196`](https://youtrack.jetbrains.com/issue/KT-29196) Variable type hints are redundant for constructor calls of nested classes
- [`KT-30058`](https://youtrack.jetbrains.com/issue/KT-30058) IndexNotReadyException from quick documentation when popup is active

### IDE. Hints. Inlay

- [`KT-19558`](https://youtrack.jetbrains.com/issue/KT-19558) Wrong position of type hint while renaming Kotlin variable
- [`KT-27438`](https://youtrack.jetbrains.com/issue/KT-27438) "Show lambda return expression hints" breaks code indentation
- [`KT-28870`](https://youtrack.jetbrains.com/issue/KT-28870) Rework "Lambda return expression" hint as between_lines_hint of disable it by default

### IDE. Hints. Parameter Info

- [`KT-29574`](https://youtrack.jetbrains.com/issue/KT-29574) Incorrect parameter info popup for lambda nested in object

### IDE. Inspections and Intentions

#### New Features

- [`KT-16118`](https://youtrack.jetbrains.com/issue/KT-16118) "Introduce import alias" intention
- [`KT-17119`](https://youtrack.jetbrains.com/issue/KT-17119) Inspection for (Scala-like) `= { ... }` syntax without expected type in function definition
- [`KT-26128`](https://youtrack.jetbrains.com/issue/KT-26128) Inspection for suspension inside synchronized and withLock functions
- [`KT-27556`](https://youtrack.jetbrains.com/issue/KT-27556) Add intention for collections, !collection.isEmpty() -> collection.isNotEmpty()
- [`KT-27670`](https://youtrack.jetbrains.com/issue/KT-27670) Add quick fix: wrap expression in a lambda if compatible functional type is required
- [`KT-28803`](https://youtrack.jetbrains.com/issue/KT-28803) Inspection: result of enum entries comparison is always false / true
- [`KT-28953`](https://youtrack.jetbrains.com/issue/KT-28953) Add intention to add underscores to decimal numerical literal
- [`KT-29001`](https://youtrack.jetbrains.com/issue/KT-29001) Add intention to move variable declaration before when-expression into when's subject
- [`KT-29113`](https://youtrack.jetbrains.com/issue/KT-29113) Warn about  redundant requireNotNull and checkNotNull usages
- [`KT-29321`](https://youtrack.jetbrains.com/issue/KT-29321) "Remove empty primary constructor": apply for enum entries
- [`KT-12134`](https://youtrack.jetbrains.com/issue/KT-12134) Suggest to remove qualifier in FQN name
- [`KT-17278`](https://youtrack.jetbrains.com/issue/KT-17278) Inspection to replace Java 8 Map.forEach with Kotlin's forEach
- [`KT-26965`](https://youtrack.jetbrains.com/issue/KT-26965) Add inspection + quickfix for replacing Collection<T>.count() with .size
- [`KT-30123`](https://youtrack.jetbrains.com/issue/KT-30123) Add intention to replace isEmpty/isNotEmpty method negation
- [`KT-25272`](https://youtrack.jetbrains.com/issue/KT-25272) Unused expression as last expression of normal function should have quickfix to add "return"
- [`KT-30456`](https://youtrack.jetbrains.com/issue/KT-30456) Improve: intention "Introduce Import Alias" should suggest new names for the new alias.

#### Fixes

- [`KT-7593`](https://youtrack.jetbrains.com/issue/KT-7593) On splitting property declaration for functional expression additional bracket added
- [`KT-12273`](https://youtrack.jetbrains.com/issue/KT-12273) "Replace with operator" intention is suggested for some non-operator functions and produces invalid code
- [`KT-18715`](https://youtrack.jetbrains.com/issue/KT-18715) Replace if with elvis swallows comments
- [`KT-19254`](https://youtrack.jetbrains.com/issue/KT-19254) Intention to convert object literal to class always creates a class named "O"
- [`KT-25501`](https://youtrack.jetbrains.com/issue/KT-25501) "Replace overloaded operator with function call" changes semantics of increment and decrement operators
- [`KT-26979`](https://youtrack.jetbrains.com/issue/KT-26979) "Lambda argument inside parentheses" inspection is not reported, if function type is actual type argument, but not formal parameter type
- [`KT-27143`](https://youtrack.jetbrains.com/issue/KT-27143) Intention "Replace camel-case name with spaces" is suggested for snake_case names in test functions and renames them incorrectly
- [`KT-28081`](https://youtrack.jetbrains.com/issue/KT-28081) "Convert to lambda" changes expression type for interface with multiple supertypes
- [`KT-28131`](https://youtrack.jetbrains.com/issue/KT-28131) False positive "Redundant lambda arrow" with a functional type argument
- [`KT-28224`](https://youtrack.jetbrains.com/issue/KT-28224) "Add braces to 'else' statement" moves comment outside braces when 'if-else' is inside 'if / when' branch
- [`KT-28592`](https://youtrack.jetbrains.com/issue/KT-28592) False positive "Remove redundant backticks" for underscore variable name
- [`KT-28596`](https://youtrack.jetbrains.com/issue/KT-28596) "Can be replaced with binary operator" shouldn't be suggested when receiver or argument is floating point type
- [`KT-28641`](https://youtrack.jetbrains.com/issue/KT-28641) "Remove useless cast" produces a dangling lambda ("Too many arguments" error)
- [`KT-28698`](https://youtrack.jetbrains.com/issue/KT-28698) "Convert to apply" intention: include function calls with `this` passed as an argument
- [`KT-28773`](https://youtrack.jetbrains.com/issue/KT-28773) Kotlin/JS: Wrong inspection to replace .equals() with == on dynamic values
- [`KT-28851`](https://youtrack.jetbrains.com/issue/KT-28851) 'Convert parameter to receiver' adds `Array<out T>` wrapper to `vararg` parameter and drops `override` modifier in implementations
- [`KT-28969`](https://youtrack.jetbrains.com/issue/KT-28969) TYPE_MISMATCH in array vs non-array case: two quick fixes exist for annotation and none of them adds array literal
- [`KT-28995`](https://youtrack.jetbrains.com/issue/KT-28995) "Add parameter to constructor" quickfix for first enum member changes arguments for all members
- [`KT-29051`](https://youtrack.jetbrains.com/issue/KT-29051) "Add parameter to constructor" quickfix for not-first enum member: "PsiInvalidElementAccessException: Element: class org.jetbrains.kotlin.psi.KtStringTemplateExpression #kotlin  because: different providers"
- [`KT-29052`](https://youtrack.jetbrains.com/issue/KT-29052) "Add parameter to constructor" quickfix for not-first enum member inserts FQN type for parameter
- [`KT-29056`](https://youtrack.jetbrains.com/issue/KT-29056) KNPE in ConvertPrimaryConstructorToSecondary with missing property identifier
- [`KT-29085`](https://youtrack.jetbrains.com/issue/KT-29085) False positive "Class member can have 'private' visibility" for a `const val` used in a public inline function
- [`KT-29093`](https://youtrack.jetbrains.com/issue/KT-29093) False positive inspection "Redundant lambda arrow" with nested lambdas
- [`KT-29099`](https://youtrack.jetbrains.com/issue/KT-29099) "Convert to apply" intention is not available for a single function call
- [`KT-29128`](https://youtrack.jetbrains.com/issue/KT-29128) False positive 'Explicitly given type is redundant here' when typealias is used
- [`KT-29153`](https://youtrack.jetbrains.com/issue/KT-29153) False negative "'rangeTo' or the '..' call should be replaced with 'until'" with bracketed expressions
- [`KT-29193`](https://youtrack.jetbrains.com/issue/KT-29193) Quick fix "Create extension function" `List<Int>.set` should not be suggested for read-only collections
- [`KT-29238`](https://youtrack.jetbrains.com/issue/KT-29238) Non-canonical modifiers order inspection incorrectly includes annotations into range
- [`KT-29248`](https://youtrack.jetbrains.com/issue/KT-29248) "Convert member to extension" doesn't preserve visibility
- [`KT-29416`](https://youtrack.jetbrains.com/issue/KT-29416) False positive "Redundant property getter" for `external` getter
- [`KT-29469`](https://youtrack.jetbrains.com/issue/KT-29469) False positive in "Boolean literal argument without parameter name" inspection for varargs parameters
- [`KT-29549`](https://youtrack.jetbrains.com/issue/KT-29549) Make package name convention inspection global
- [`KT-29567`](https://youtrack.jetbrains.com/issue/KT-29567) "Remove empty class body" is a poor name for inspection text
- [`KT-29606`](https://youtrack.jetbrains.com/issue/KT-29606) Do not propose to remove unused parameter of property setter
- [`KT-29763`](https://youtrack.jetbrains.com/issue/KT-29763) False negative "Object literal can be converted to lambda" for block body function with explicit return
- [`KT-30007`](https://youtrack.jetbrains.com/issue/KT-30007) False negative "Add import for '...'" in UserType
- [`KT-19944`](https://youtrack.jetbrains.com/issue/KT-19944) multiplatform: Convert expect/actual function to property should keep the caret on the converted function
- [`KT-27289`](https://youtrack.jetbrains.com/issue/KT-27289) "Create" quick fix on FQN does nothing with KNPE at KotlinRefactoringUtilKt$chooseContainerElement$1.renderText()
- [`KT-29312`](https://youtrack.jetbrains.com/issue/KT-29312) "Make constructor parameter a property" produces wrong modifier order + exception "Invalid range specified"
- [`KT-29414`](https://youtrack.jetbrains.com/issue/KT-29414) "Main parameter is not necessary" inspection reports parameter of `main()` in object
- [`KT-29499`](https://youtrack.jetbrains.com/issue/KT-29499) "Unsafe call of inline function with nullable extension receiver" inspection ignores inferred nullability
- [`KT-29927`](https://youtrack.jetbrains.com/issue/KT-29927) Missing "Import members from" intention with type check operator in `when` branch
- [`KT-30010`](https://youtrack.jetbrains.com/issue/KT-30010) Introduce alternative quick-fixes for `map[key]!!`
- [`KT-30166`](https://youtrack.jetbrains.com/issue/KT-30166) False positive "Redundant companion reference" on companion with the outer class name
- [`KT-14886`](https://youtrack.jetbrains.com/issue/KT-14886) Create Property from Usage should place generated property next to other properties
- [`KT-16139`](https://youtrack.jetbrains.com/issue/KT-16139) Adding explicit type argument leads to type mismatch
- [`KT-19462`](https://youtrack.jetbrains.com/issue/KT-19462) False positive inspection "Redundant lambda arrow" for overloaded functions
- [`KT-22137`](https://youtrack.jetbrains.com/issue/KT-22137) Create class quickfix is not suggested in return statement
- [`KT-23259`](https://youtrack.jetbrains.com/issue/KT-23259) False positive unchecked cast warning/quickfix result in good code turning red
- [`KT-27641`](https://youtrack.jetbrains.com/issue/KT-27641) "Specify type explicitly" suggests too general type even when type hint shows specific generic type
- [`KT-29124`](https://youtrack.jetbrains.com/issue/KT-29124) False positive inspection 'Redundant lambda arrow' with generic function/constructor with lambda argument
- [`KT-29590`](https://youtrack.jetbrains.com/issue/KT-29590) False positive inspection "Redundant lambda arrow" with vararg lambda arguments passed via spread operator
- [`KT-29977`](https://youtrack.jetbrains.com/issue/KT-29977) False positive "Unused import directive" for typealias of an enum imported as static
- [`KT-30233`](https://youtrack.jetbrains.com/issue/KT-30233) Change order of the quick fixes when method does not accept nullable types
- [`KT-30341`](https://youtrack.jetbrains.com/issue/KT-30341) False positive 'Use withIndex() instead of manual index increment' inspection with destructive declaration in 'for' loop
- [`KT-30414`](https://youtrack.jetbrains.com/issue/KT-30414) "Replace return with 'if' expression" drops return label
- [`KT-30426`](https://youtrack.jetbrains.com/issue/KT-30426) Don't preserve extra line when adding remaining branches for when
- [`KT-30433`](https://youtrack.jetbrains.com/issue/KT-30433) "Convert member to extension" doesn't update external Kotlin calls
- [`KT-30117`](https://youtrack.jetbrains.com/issue/KT-30117) Kotlin unused import analysis accesses file editor manager model outside UI thread
- [`KT-29143`](https://youtrack.jetbrains.com/issue/KT-29143) Unnecessary primary `constructor` keyword inspection
- [`KT-29444`](https://youtrack.jetbrains.com/issue/KT-29444) "Make public" intention does not remove additional white-space to conform to proper style
- [`KT-30337`](https://youtrack.jetbrains.com/issue/KT-30337) Do not propose to move variable declaration into "when" if it's not used inside the when-expression

### IDE. Multiplatform

- [`KT-29918`](https://youtrack.jetbrains.com/issue/KT-29918) Outdated Ktor version in Kotlin (JS Client/JVM Server) multiplatform project generated via New Project Wizard

### IDE. Navigation

- [`KT-26924`](https://youtrack.jetbrains.com/issue/KT-26924) Overriding Methods list has more values than it should be in case of inline class
- [`KT-28661`](https://youtrack.jetbrains.com/issue/KT-28661) "Is implemented in" gutter icon shows duplicate function implementations in inline classes
- [`KT-28838`](https://youtrack.jetbrains.com/issue/KT-28838) Group by file structure doesn't work for text search in Kotlin

### IDE. Refactorings

- [`KT-27602`](https://youtrack.jetbrains.com/issue/KT-27602) Kotlin property renaming change target name several times  during rename making it hard to process it by reference handlers
- [`KT-29062`](https://youtrack.jetbrains.com/issue/KT-29062) Extract Superclass refactoring throws Exception if sourceRoots.size() <= 1
- [`KT-29796`](https://youtrack.jetbrains.com/issue/KT-29796) Label rename refactoring does not work on label usage

### IDE. Scratch

- [`KT-23985`](https://youtrack.jetbrains.com/issue/KT-23985) Allow to run Kotlin Worksheet without module classpath
- [`KT-27955`](https://youtrack.jetbrains.com/issue/KT-27955) Interactive mode for Kotlin Scratch files
- [`KT-28958`](https://youtrack.jetbrains.com/issue/KT-28958) Exception "Read access is allowed from event dispatch thread or inside read-action only" when running a scratch file with "Use REPL" and "Make before Run" enabled
- [`KT-30200`](https://youtrack.jetbrains.com/issue/KT-30200) "java.lang.Throwable: Couldn't find expression with start line ..." on edition of a scratch file during its execution with interactive mode enabled

### IDE. Script

- [`KT-29770`](https://youtrack.jetbrains.com/issue/KT-29770) IntelliJ IDEA makes too many requests for the classpath of a Gradle Kotlin build script
- [`KT-29893`](https://youtrack.jetbrains.com/issue/KT-29893) IDE is frozen during project configuration because of `ScriptTemplatesFromDependenciesProvider`
- [`KT-30146`](https://youtrack.jetbrains.com/issue/KT-30146) Preferences from Kotlin scripting section reset to default after project reopening

### IDE. Tests Support

- [`KT-25956`](https://youtrack.jetbrains.com/issue/KT-25956) With failed test function class gutter icon is "failure", but function icon is "success"

### IDE. Wizards

- [`KT-17829`](https://youtrack.jetbrains.com/issue/KT-17829) Please unify naming of Kotlin projects and frameworks for JVM
- [`KT-28941`](https://youtrack.jetbrains.com/issue/KT-28941) Tip of the day: obsolete project types from "New project wizard"

### Libraries

- [`KT-27108`](https://youtrack.jetbrains.com/issue/KT-27108) `.toDouble()` and `.toFloat()` conversions for unsigned types
- [`KT-29520`](https://youtrack.jetbrains.com/issue/KT-29520) Random.Default cannot be used asJavaRandom
- [`KT-30109`](https://youtrack.jetbrains.com/issue/KT-30109) Documentation for Result.onSuccess and Result.onFailure are flipped around
- [`KT-26378`](https://youtrack.jetbrains.com/issue/KT-26378) 'contains' overloads for unsigned integer ranges with other unsigned integer types
- [`KT-26410`](https://youtrack.jetbrains.com/issue/KT-26410) High-order function overloads for unsigned arrays
- [`KT-27262`](https://youtrack.jetbrains.com/issue/KT-27262) Binary search for specialized arrays of unsigned integers
- [`KT-28339`](https://youtrack.jetbrains.com/issue/KT-28339) Add `fill` extension function for unsigned primitive arrays
- [`KT-28397`](https://youtrack.jetbrains.com/issue/KT-28397) UByteArray plus UByteArray = List<UByte>
- [`KT-28779`](https://youtrack.jetbrains.com/issue/KT-28779) Implement method sum() for arrays of unsigned primitives
- [`KT-29151`](https://youtrack.jetbrains.com/issue/KT-29151) Documentation for CharSequence.take() & String.take() shows examples of Iterable<T>.take()
- [`KT-30035`](https://youtrack.jetbrains.com/issue/KT-30035) add max/maxOf/min/minOf for unsigned types
- [`KT-30051`](https://youtrack.jetbrains.com/issue/KT-30051) elementAt extension function of Array/PrimitiveAray/UnsignedArray does not throw IndexOutOfBoundException on incorrect index (JS only)
- [`KT-30141`](https://youtrack.jetbrains.com/issue/KT-30141) JS: document Array.get behavior
- [`KT-30704`](https://youtrack.jetbrains.com/issue/KT-30704) Documentation of Random function not quite correct

### Tools. CLI

- [`KT-26240`](https://youtrack.jetbrains.com/issue/KT-26240) Support JVM bytecode targets 9, 10, 11, 12

### Tools. Gradle

- [`KT-12295`](https://youtrack.jetbrains.com/issue/KT-12295) Gradle IC: Compile error leads to non-incremental build
- [`KT-12700`](https://youtrack.jetbrains.com/issue/KT-12700) Add a way to diagnose IC problems
- [`KT-26275`](https://youtrack.jetbrains.com/issue/KT-26275) Check new MPP IC
- [`KT-27885`](https://youtrack.jetbrains.com/issue/KT-27885) Drop support for Gradle 3.x and earlier
- [`KT-27886`](https://youtrack.jetbrains.com/issue/KT-27886) Drop support for Android Gradle plugin 2.x
- [`KT-28552`](https://youtrack.jetbrains.com/issue/KT-28552) Gradle 4.7 import fails on Kotlin/mpp projects with Java11
- [`KT-29275`](https://youtrack.jetbrains.com/issue/KT-29275) Drop support for Gradle 4.0
- [`KT-29758`](https://youtrack.jetbrains.com/issue/KT-29758) Gradle build failed with exception on publication of a multiplatform library with Gradle metadata enabled: org.jetbrains.kotlin.gradle.plugin.mpp.HierarchyAttributeContainer cannot be cast to org.gradle.api.internal.attributes.AttributeContainerInternal
- [`KT-29966`](https://youtrack.jetbrains.com/issue/KT-29966) Fix inter-project IC with new MPP for JS/JVM targets
- [`KT-27059`](https://youtrack.jetbrains.com/issue/KT-27059) Ensure a dependency on the multiplatform project in the POM when publishing a single-platform module with the `maven` plugin
- [`KT-29971`](https://youtrack.jetbrains.com/issue/KT-29971) ConcurrentModificationException in Kotlin Gradle plugin (GradleCompilerRunner.buildModulesInfo)
- [`KT-21030`](https://youtrack.jetbrains.com/issue/KT-21030) Automatically detect java 1.8 sources in kotlin-android gradle plugin
- [`KT-27675`](https://youtrack.jetbrains.com/issue/KT-27675) Enable Kapt build cache by default
- [`KT-27714`](https://youtrack.jetbrains.com/issue/KT-27714) Kotlin MPP Android targets don't have their attributes copied to the configurations of the compilations
- [`KT-29761`](https://youtrack.jetbrains.com/issue/KT-29761) Inter-project IC does not work for kaptGenerateStubs* tasks on Android
- [`KT-29823`](https://youtrack.jetbrains.com/issue/KT-29823) Update 'org.gradle.usage' attribute rules to support the 'JAVA_API_JARS' value
- [`KT-29964`](https://youtrack.jetbrains.com/issue/KT-29964) A universal Gradle DSL way of configuring all compilations of all targets doesn't work for Android target of a multiplatform project
- [`KT-30276`](https://youtrack.jetbrains.com/issue/KT-30276) Warn if the Kotlin Gradle plugin is loaded multiple times
- [`KT-30322`](https://youtrack.jetbrains.com/issue/KT-30322) Memory leak in CompilationSourceSetUtil
- [`KT-30492`](https://youtrack.jetbrains.com/issue/KT-30492) Classes not removed for out/in process compilation

### Tools. J2K

- [`KT-29713`](https://youtrack.jetbrains.com/issue/KT-29713) java.lang.IllegalStateException at converting  @RestController java file to Kotlin file

### Tools. JPS

- [`KT-30137`](https://youtrack.jetbrains.com/issue/KT-30137) Deadlock during concurrent classloading

### Tools. Maven

- [`KT-29251`](https://youtrack.jetbrains.com/issue/KT-29251) NSME: MavenProjectsManager.scheduleArtifactsDownloading() at KotlinMavenImporter.scheduleDownloadStdlibSources()

### Tools. REPL

- [`KT-19276`](https://youtrack.jetbrains.com/issue/KT-19276) Console spam when opening idea-community project in debug IDEA

### Tools. Scripts

- [`KT-29296`](https://youtrack.jetbrains.com/issue/KT-29296) Script evaluation - impossible to set base classloader to null
- [`KT-27051`](https://youtrack.jetbrains.com/issue/KT-27051) Support dynamic versions in @file:DependsOn
- [`KT-27815`](https://youtrack.jetbrains.com/issue/KT-27815) Compiler options in the scripting compilation configuration are ignored on compilation/evaluation
- [`KT-28593`](https://youtrack.jetbrains.com/issue/KT-28593) Idea tries to associate file type with the script definition discovery file
- [`KT-29319`](https://youtrack.jetbrains.com/issue/KT-29319) scripts default jvmTarget causes inlining problems - default should be 1.8
- [`KT-29741`](https://youtrack.jetbrains.com/issue/KT-29741) KJvmCompiledScript can not be deserialized KJvmCompiledModule if it's null
- [`KT-30210`](https://youtrack.jetbrains.com/issue/KT-30210) Coroutines in main.kts crash with NoSuchMethodError because kotlin-main-kts.jar has embedded coroutines

### Tools. kapt

- [`KT-26977`](https://youtrack.jetbrains.com/issue/KT-26977) kapt plugin applied in platform.jvm module preventing visibility of common code
- [`KT-27506`](https://youtrack.jetbrains.com/issue/KT-27506) Kapt error "no interface expected here" in class implementing interface with secondary constructor
- [`KT-28220`](https://youtrack.jetbrains.com/issue/KT-28220) kapt can generate invalid stub files for imports of enum constants
- [`KT-28306`](https://youtrack.jetbrains.com/issue/KT-28306) Cannot extend an generic interface with function body while using kapt and correctErrorTypes in Kotlin 1.3
- [`KT-23880`](https://youtrack.jetbrains.com/issue/KT-23880) Kapt: Support incremental annotation processors
- [`KT-29302`](https://youtrack.jetbrains.com/issue/KT-29302) Java classes doesn't resolve Kotlin classes when kapt.use.worker.api = true
- [`KT-30163`](https://youtrack.jetbrains.com/issue/KT-30163) Kapt: Javadoc in Java source model mangled (leading asterisks are preserved)

### Docs & Examples

- [`KT-30091`](https://youtrack.jetbrains.com/issue/KT-30091) KClass documentation incorrectly shows all members available on all platforms
- [`KT-30100`](https://youtrack.jetbrains.com/issue/KT-30100) Clarify Map.toSortedMap docs
- [`KT-30418`](https://youtrack.jetbrains.com/issue/KT-30418) Documentation for floor() and ceil() functions is misleading
- [`KT-29373`](https://youtrack.jetbrains.com/issue/KT-29373) MutableSet.add documentation is confusing

## 1.3.21

### Compiler

#### Fixes

- [`KT-29475`](https://youtrack.jetbrains.com/issue/KT-29475) IllegalArgumentException at getAbstractTypeFromDescriptor with deeply nested expression inside function named with a right parenthesis
- [`KT-29479`](https://youtrack.jetbrains.com/issue/KT-29479) WARN: Could not read file on Java classes from JDK 11+
- [`KT-29360`](https://youtrack.jetbrains.com/issue/KT-29360) Kotlin 1.3.20-eap-100: This marker function should never been called. Looks like compiler did not eliminate it properly. Please, report an issue if you caught this exception.

### IDE

#### Fixes

- [`KT-29486`](https://youtrack.jetbrains.com/issue/KT-29486) Throwable: "Could not find correct module information" through IdeaKotlinUastResolveProviderService.getBindingContext() and ReplaceWithAnnotationAnalyzer.analyzeOriginal()
- [`KT-29394`](https://youtrack.jetbrains.com/issue/KT-29394) Kotlin 1.3.20 EAP: Excess log messages with `kotlin.parallel.tasks.in.project=true`
- [`KT-29474`](https://youtrack.jetbrains.com/issue/KT-29474) Regression in 1.3.20: Kotlin IDE plugin parses all *.gradle.kts files when any class in buildSrc is opened
- [`KT-29290`](https://youtrack.jetbrains.com/issue/KT-29290) Warning "function returning deferred with a name that does not end with async" should not be displayed for let/also/apply...
- [`KT-29494`](https://youtrack.jetbrains.com/issue/KT-29494) Don't report BooleanLiteralArgumentInspection in batch (offline) mode with INFORMATION severity
- [`KT-29525`](https://youtrack.jetbrains.com/issue/KT-29525) turning on parallel tasks causes java.lang.NoClassDefFoundError: Could not initialize class kotlin.Unit sometimes
- [`KT-27769`](https://youtrack.jetbrains.com/issue/KT-27769) Change the DSL marker icon
- [`KT-29118`](https://youtrack.jetbrains.com/issue/KT-29118) Log polluted with multiple "Kotlin does not support alternative resolve" reports

### IDE. Multiplatform

- [`KT-28128`](https://youtrack.jetbrains.com/issue/KT-28128) MPP Kotlin/Native re-downloads POM files on IDE Gradle refresh

### IDE. REPL

- [`KT-29400`](https://youtrack.jetbrains.com/issue/KT-29400) IDE REPL in Gradle project: "IllegalStateException: consoleView must not be null" on module build

### Libraries

#### Fixes

- [`KT-29612`](https://youtrack.jetbrains.com/issue/KT-29612) jlink refuses to consume stdlib containing non-public package kotlin.native

### Tools. CLI

- [`KT-29596`](https://youtrack.jetbrains.com/issue/KT-29596) "AssertionError: Cannot load extensions/common.xml from kotlin-compiler.jar" on IBM JDK 8

### Tools. Gradle

- [`KT-29476`](https://youtrack.jetbrains.com/issue/KT-29476) 1.3.20 MPP Android publishing common api configuration with runtime scope
- [`KT-29725`](https://youtrack.jetbrains.com/issue/KT-29725) MPP Gradle 5.2: NoSuchMethodError in WrapUtil
- [`KT-29485`](https://youtrack.jetbrains.com/issue/KT-29485) In MPP with Gradle module metadata, POM rewriting does not replace the root module publication with a platform one if the former has a custom artifact ID

### Tools. Scripts

- [`KT-29490`](https://youtrack.jetbrains.com/issue/KT-29490) Regression in 1.3.20: Kotlin Jsr223 script engine cannot handle functional return types

### Tools. Kapt

- [`KT-29481`](https://youtrack.jetbrains.com/issue/KT-29481) Annotation processors run on androidTest source set even without the kaptAndroidTest declaration
- [`KT-29513`](https://youtrack.jetbrains.com/issue/KT-29513) kapt throws "ZipException: zip END header not found", when Graal SVM jar in classpath

## 1.3.20

### Android

- [`KT-22571`](https://youtrack.jetbrains.com/issue/KT-22571) Android: Configure Kotlin should add implementation dependency instead of compile

### Compiler

#### New Features

- [`KT-14416`](https://youtrack.jetbrains.com/issue/KT-14416) Support of @PolymorphicSignature in Kotlin compiler
- [`KT-22704`](https://youtrack.jetbrains.com/issue/KT-22704) Allow expect annotations with actual typealias to Java to have default argument values both in expected and in actual
- [`KT-26165`](https://youtrack.jetbrains.com/issue/KT-26165) Support VarHandle in JVM codegen
- [`KT-26999`](https://youtrack.jetbrains.com/issue/KT-26999) Inspection for unused main parameter in Kotlin 1.3

#### Performance Improvements

- [`KT-16867`](https://youtrack.jetbrains.com/issue/KT-16867) Proguard can't unbox Kotlin enums to integers
- [`KT-23466`](https://youtrack.jetbrains.com/issue/KT-23466) kotlin compiler opens-reads-closes .class files many times over
- [`KT-25613`](https://youtrack.jetbrains.com/issue/KT-25613) Optimise boxing of inline class values inside string templates

#### Fixes

- [`KT-2680`](https://youtrack.jetbrains.com/issue/KT-2680) JVM backend should generate synthetic constructors for enum entries (as javac does).
- [`KT-6574`](https://youtrack.jetbrains.com/issue/KT-6574) Enum entry classes should be compiled to package private classes
- [`KT-8341`](https://youtrack.jetbrains.com/issue/KT-8341) Local variable cannot have type parameters
- [`KT-14529`](https://youtrack.jetbrains.com/issue/KT-14529) JS: annotations on property accessors are not serialized
- [`KT-15453`](https://youtrack.jetbrains.com/issue/KT-15453) Annotations are ignored on accessors of private properties
- [`KT-18053`](https://youtrack.jetbrains.com/issue/KT-18053) Unexpected behavior with "in" infix operator and ConcurrentHashMap
- [`KT-18592`](https://youtrack.jetbrains.com/issue/KT-18592) Compiler cannot resolve trait-based superclass of Groovy dependency
- [`KT-19613`](https://youtrack.jetbrains.com/issue/KT-19613) "Public property exposes its private type" not reported for primary constructor properties
- [`KT-20344`](https://youtrack.jetbrains.com/issue/KT-20344) Unused private setter created for property
- [`KT-21862`](https://youtrack.jetbrains.com/issue/KT-21862) java.lang.NoSuchFieldError when calling isInitialized on a lateinit "field" of a companion object
- [`KT-21946`](https://youtrack.jetbrains.com/issue/KT-21946) Compilation error during default lambda inlining when it returns anonymous object
- [`KT-22154`](https://youtrack.jetbrains.com/issue/KT-22154) Warning: Stripped invalid locals information from 1 method when compiling with D8
- [`KT-23369`](https://youtrack.jetbrains.com/issue/KT-23369) Internal compiler error in SMAPParser.parse
- [`KT-23543`](https://youtrack.jetbrains.com/issue/KT-23543) Back-end (JVM) Internal error: Couldn't inline method
- [`KT-23739`](https://youtrack.jetbrains.com/issue/KT-23739) CompilationException: Back-end (JVM) Internal error: Couldn't inline method call: Unmapped line number in inlined function
- [`KT-24156`](https://youtrack.jetbrains.com/issue/KT-24156) For-loop optimization should not be applied in case of custom iterator
- [`KT-24672`](https://youtrack.jetbrains.com/issue/KT-24672) JVM BE: Wrong range is generated in LVT for variables with "late" assignment
- [`KT-24780`](https://youtrack.jetbrains.com/issue/KT-24780) Recursive suspend local functions: "Expected an object reference, but found ."
- [`KT-24937`](https://youtrack.jetbrains.com/issue/KT-24937) Exception from parser (EA-76217)
- [`KT-25058`](https://youtrack.jetbrains.com/issue/KT-25058) Fix deprecated API usage in RemappingClassBuilder
- [`KT-25288`](https://youtrack.jetbrains.com/issue/KT-25288) SOE when inline class is recursive through type parameter upper bound
- [`KT-25295`](https://youtrack.jetbrains.com/issue/KT-25295) “Couldn't transform method node” error on compiling inline class with inherited interface method call
- [`KT-25424`](https://youtrack.jetbrains.com/issue/KT-25424) No coercion to Unit when type argument specified explicitly
- [`KT-25702`](https://youtrack.jetbrains.com/issue/KT-25702) @JvmOverloads should not be allowed on constructors of annotation classes
- [`KT-25893`](https://youtrack.jetbrains.com/issue/KT-25893) crossinline suspend function leads to IllegalStateException: call to 'resume' before 'invoke' with coroutine or compile error
- [`KT-25907`](https://youtrack.jetbrains.com/issue/KT-25907) "Backend Internal error" for a nullable loop variable with explicitly declared type in a for-loop over String
- [`KT-25922`](https://youtrack.jetbrains.com/issue/KT-25922) Back-end Internal error : Couldn't inline method : Lambda inlining : invoke(Continuation) : Trying to access skipped parameter
- [`KT-26126`](https://youtrack.jetbrains.com/issue/KT-26126) Front-end doesn't check that fun with contract and `callsInPlace` effect is an inline function; compiler crashes on val initialization
- [`KT-26366`](https://youtrack.jetbrains.com/issue/KT-26366) UseExperimental with full qualified reference to marker annotation class is reported as error
- [`KT-26384`](https://youtrack.jetbrains.com/issue/KT-26384) Compiler crash with nested multi-catch try, finally block and inline function
- [`KT-26505`](https://youtrack.jetbrains.com/issue/KT-26505) Improve error message on missing script base class kotlin.script.templates.standard.ScriptTemplateWithArgs
- [`KT-26506`](https://youtrack.jetbrains.com/issue/KT-26506) Incorrect bytecode generated for inner class inside inline class referencing outer 'this'
- [`KT-26508`](https://youtrack.jetbrains.com/issue/KT-26508) Incorrect accessor generated for private inline class method call from lambda
- [`KT-26509`](https://youtrack.jetbrains.com/issue/KT-26509) Internal compiler error on generating inline class private method call from companion object
- [`KT-26554`](https://youtrack.jetbrains.com/issue/KT-26554) VerifyError: Bad type on operand stack for inline class with default parameter of underlying type
- [`KT-26582`](https://youtrack.jetbrains.com/issue/KT-26582) Array literal of a primitive wrapper class is loaded as a primitive array literal
- [`KT-26608`](https://youtrack.jetbrains.com/issue/KT-26608) Couldn't inline method call. RuntimeException: Trying to access skipped parameter: Ljava/lang/Object;
- [`KT-26658`](https://youtrack.jetbrains.com/issue/KT-26658) Trying to access skipped parameter exception in code with crossinline suspend lambda with suspend function with default parameter call
- [`KT-26715`](https://youtrack.jetbrains.com/issue/KT-26715) NullPointerException for an inline class constructor reference
- [`KT-26848`](https://youtrack.jetbrains.com/issue/KT-26848) Incorrect line in coroutine debug metadata for first suspension point
- [`KT-26908`](https://youtrack.jetbrains.com/issue/KT-26908) Inline classes can't have a parameter with a default value (Platform declaration clash)
- [`KT-26931`](https://youtrack.jetbrains.com/issue/KT-26931) NSME “InlineClass.foo-impl(LIFace;)I” on calling inherited method from inline class instance
- [`KT-26932`](https://youtrack.jetbrains.com/issue/KT-26932) CCE “Foo cannot be cast to java.lang.String” when accessing underlying value of inline class through reflection
- [`KT-26998`](https://youtrack.jetbrains.com/issue/KT-26998) Default extension fun call in generic Kotlin interface with inline class substituted type of extension receiver fails with internal compiler error
- [`KT-27025`](https://youtrack.jetbrains.com/issue/KT-27025) Inline class access to private companion object fun fails with VerifyError
- [`KT-27070`](https://youtrack.jetbrains.com/issue/KT-27070) Delegated property with inline class type delegate fails with internal error in codegen
- [`KT-27078`](https://youtrack.jetbrains.com/issue/KT-27078) Inline class instance captured in closure fails with internal error (incorrect bytecode generated)
- [`KT-27107`](https://youtrack.jetbrains.com/issue/KT-27107) JvmStatic in inline class companion doesn't generate static method in the class
- [`KT-27113`](https://youtrack.jetbrains.com/issue/KT-27113) Inline class's `toString` is not called when it is used in string extrapolation
- [`KT-27140`](https://youtrack.jetbrains.com/issue/KT-27140) Couldn't inline method call 'ByteArray' with inline class
- [`KT-27162`](https://youtrack.jetbrains.com/issue/KT-27162) Incorrect container is generated to callable reference classes for references to inline class members
- [`KT-27259`](https://youtrack.jetbrains.com/issue/KT-27259) "Internal error: wrong code generated" for nullable inline class with an inline class underlying type
- [`KT-27318`](https://youtrack.jetbrains.com/issue/KT-27318) Interface implementation by delegation to inline class type delegate fails with internal error in codegen
- [`KT-27358`](https://youtrack.jetbrains.com/issue/KT-27358) Boxed inline class type default parameter values fail with CCE at run-time
- [`KT-27416`](https://youtrack.jetbrains.com/issue/KT-27416) "IllegalStateException: Backend Internal error" for inline class with a function with default argument value
- [`KT-27429`](https://youtrack.jetbrains.com/issue/KT-27429) "-java-parameters" compiler argument fails in constructor when there is an inline class parameter present
- [`KT-27513`](https://youtrack.jetbrains.com/issue/KT-27513) Backend Internal Error when using inline method inside inline class
- [`KT-27560`](https://youtrack.jetbrains.com/issue/KT-27560) Executing getter of property with type kotlin.reflect.KSuspendFunction1 throws MalformedParameterizedTypeException
- [`KT-27705`](https://youtrack.jetbrains.com/issue/KT-27705) Internal compiler error (incorrect bytecode generated) when inner class constructor inside inline class references inline class primary val
- [`KT-27706`](https://youtrack.jetbrains.com/issue/KT-27706) Internal compiler error (incorrect bytecode generated) when inner class inside inline class accepts inline class parameter
- [`KT-27732`](https://youtrack.jetbrains.com/issue/KT-27732) Using type inference on platform types corresponding to unsigned types causes compiler error
- [`KT-27737`](https://youtrack.jetbrains.com/issue/KT-27737) CCE for delegated property of inline class type
- [`KT-27762`](https://youtrack.jetbrains.com/issue/KT-27762) The lexer crashes when a vertical tabulation is used
- [`KT-27774`](https://youtrack.jetbrains.com/issue/KT-27774) Update asm to 7.0 in Kotlin backend
- [`KT-27948`](https://youtrack.jetbrains.com/issue/KT-27948) "Argument 2: expected R, but found I" for `equals` operator on nullable and non-null unsigned types
- [`KT-28054`](https://youtrack.jetbrains.com/issue/KT-28054) Inline class: "Cannot pop operand off an empty stack" for calling private secondary constructor from companion object
- [`KT-28061`](https://youtrack.jetbrains.com/issue/KT-28061) Safe call operator and contracts: false negative "A 'return' expression required in a function with a block body"
- [`KT-28185`](https://youtrack.jetbrains.com/issue/KT-28185) Incorrect behaviour of javaClass intrinsic for receivers of inline class type
- [`KT-28188`](https://youtrack.jetbrains.com/issue/KT-28188) CCE when bound callable reference with receiver of inline class type is passed to inline function
- [`KT-28237`](https://youtrack.jetbrains.com/issue/KT-28237) CoroutineStackFrame uses slashes instead of dots in FQN
- [`KT-28361`](https://youtrack.jetbrains.com/issue/KT-28361) Class literal for inline class should return KClass object of the wrapper
- [`KT-28385`](https://youtrack.jetbrains.com/issue/KT-28385) Rewrite at slice FUNCTION in MPP on "red" code
- [`KT-28405`](https://youtrack.jetbrains.com/issue/KT-28405) VE “Bad type on operand stack” at runtime on creating inline class with UIntArray inside
- [`KT-28585`](https://youtrack.jetbrains.com/issue/KT-28585) Inline classes not properly boxed when accessing a `var` (from enclosing scope) from lambda
- [`KT-28847`](https://youtrack.jetbrains.com/issue/KT-28847) Compilation fails with "AssertionError: Rewrite at slice FUNCTOR" on compiling complicated case with delegating property
- [`KT-28879`](https://youtrack.jetbrains.com/issue/KT-28879) "AnalyzerException: Expected I, but found R" when compiling javaClass on inline class value
- [`KT-28920`](https://youtrack.jetbrains.com/issue/KT-28920) "AnalyzerException: Expected I, but found R" when compiling javaObjectType/javaPrimitiveType with inline classes
- [`KT-28965`](https://youtrack.jetbrains.com/issue/KT-28965) Unsound smartcast to definitely not-null if value of one generic type is cast to other generic type
- [`KT-28983`](https://youtrack.jetbrains.com/issue/KT-28983) Wrong mapping of flexible inline class type to primitive type

### IDE

#### New Features

- [`KT-25906`](https://youtrack.jetbrains.com/issue/KT-25906) Kotlin language injection doesn't evaluate constants in string templates
- [`KT-27461`](https://youtrack.jetbrains.com/issue/KT-27461) Provide live template to generate `main()` with no parameters
- [`KT-28371`](https://youtrack.jetbrains.com/issue/KT-28371) Automatically align ?: (elvis operator) after call on the new line

#### Performance Improvements

- [`KT-23738`](https://youtrack.jetbrains.com/issue/KT-23738) Provide stubs for annotation value argument list 
- [`KT-25410`](https://youtrack.jetbrains.com/issue/KT-25410) Opening Settings freezes the UI for 23 seconds
- [`KT-27832`](https://youtrack.jetbrains.com/issue/KT-27832) Improve performance of KotlinGradleProjectResolverExtension
- [`KT-28755`](https://youtrack.jetbrains.com/issue/KT-28755) Optimize searching constructor delegation calls
- [`KT-29297`](https://youtrack.jetbrains.com/issue/KT-29297) Improve performance of light classes in IDE (Java-to-Kotlin interop)

#### Fixes

- [`KT-9840`](https://youtrack.jetbrains.com/issue/KT-9840) Right parenthesis doesn't appear after class name before the colon
- [`KT-13420`](https://youtrack.jetbrains.com/issue/KT-13420) Extend Selection: lambda: whole literal with braces is selected after parameters
- [`KT-17502`](https://youtrack.jetbrains.com/issue/KT-17502) Do not disable "Generate equals and hashCode" actions for data classes
- [`KT-22590`](https://youtrack.jetbrains.com/issue/KT-22590) Create Kotlin SDK if it's absent on importing from gradle/maven Kotlin (JavaScript) projects and on configuring java project to Kotlin(JavaScript), Kotlin(Common)
- [`KT-23268`](https://youtrack.jetbrains.com/issue/KT-23268) IntelliJ plugin: Variables from destructing declarations are not syntax colored as variables
- [`KT-23864`](https://youtrack.jetbrains.com/issue/KT-23864) Copyright message is duplicated in kotlin file in root package after updating copyright
- [`KT-25156`](https://youtrack.jetbrains.com/issue/KT-25156) SOE in IDE on destructuring delegated property declaration
- [`KT-25681`](https://youtrack.jetbrains.com/issue/KT-25681) Remove "Coroutines (experimental)" settings from IDE and do not pass `-Xcoroutines` to JPS compiler (since 1.3)
- [`KT-26868`](https://youtrack.jetbrains.com/issue/KT-26868) MPP: Gradle import: test dependencies get Compile scope
- [`KT-26987`](https://youtrack.jetbrains.com/issue/KT-26987) "Extend Selection" is missing for labeled return
- [`KT-27095`](https://youtrack.jetbrains.com/issue/KT-27095) Kotlin configuration: update EAP repositories to use https instead of http
- [`KT-27321`](https://youtrack.jetbrains.com/issue/KT-27321) Cannot init component state if "internalArguments" presents in xml project structure (kotlinc.xml)
- [`KT-27375`](https://youtrack.jetbrains.com/issue/KT-27375) Kotlin Gradle DSL script: "Unable to get Gradle home directory" in new project with new Gradle wrapper
- [`KT-27380`](https://youtrack.jetbrains.com/issue/KT-27380) `KotlinStringLiteralTextEscaper` returns wrong offset on unparseable elements
- [`KT-27491`](https://youtrack.jetbrains.com/issue/KT-27491) MPP JVM/JS wizard: Use Ktor in the skeleton
- [`KT-27492`](https://youtrack.jetbrains.com/issue/KT-27492) Create some MPP wizard tests
- [`KT-27530`](https://youtrack.jetbrains.com/issue/KT-27530) Kotlin Gradle plugin overwrites the JDK set by jdkName property of the Gradle Idea plugin
- [`KT-27663`](https://youtrack.jetbrains.com/issue/KT-27663) Uast: don't store resolved descriptors in UElements
- [`KT-27907`](https://youtrack.jetbrains.com/issue/KT-27907) Exception on processing auto-generated classes from AS
- [`KT-27954`](https://youtrack.jetbrains.com/issue/KT-27954) Generate -> toString() using "Multiple templates with concatenation" should add spaces after commas
- [`KT-27941`](https://youtrack.jetbrains.com/issue/KT-27941) MPP: Gradle import with "using qualified names" creates 2 modules with the same content root
- [`KT-28199`](https://youtrack.jetbrains.com/issue/KT-28199) Could not get javaResolutionFacade for groovy elements
- [`KT-28348`](https://youtrack.jetbrains.com/issue/KT-28348) Don't log or wrap ProcessCanceledException
- [`KT-28401`](https://youtrack.jetbrains.com/issue/KT-28401) Show parameter info for lambdas during completion
- [`KT-28402`](https://youtrack.jetbrains.com/issue/KT-28402) Automatically indent || and && operators
- [`KT-28458`](https://youtrack.jetbrains.com/issue/KT-28458) New Project Wizard: move multiplatform projects to the new DSL
- [`KT-28513`](https://youtrack.jetbrains.com/issue/KT-28513) Bad Kotlin configuration when old syntax is used for configured Gradle project with >= 4.4 version
- [`KT-28556`](https://youtrack.jetbrains.com/issue/KT-28556) Wrong nullability for @JvmOverloads-generated method parameter in light classes
- [`KT-28997`](https://youtrack.jetbrains.com/issue/KT-28997) Couldn't get delegate for class from any local class or object in script
- [`KT-29027`](https://youtrack.jetbrains.com/issue/KT-29027) Kotlin LightAnnotations don't handle vararg class literals

### IDE. Android

- [`KT-23560`](https://youtrack.jetbrains.com/issue/KT-23560) Scratch: impossible to run scratch file from Android Studio
- [`KT-25450`](https://youtrack.jetbrains.com/issue/KT-25450) NoClassDefFoundError when trying to run a scratch file in Android Studio 3.1.3, Kotlin 1.2.51
- [`KT-26764`](https://youtrack.jetbrains.com/issue/KT-26764) `kotlin` content root isn't generated for Android module of a multiplatform project on Gradle import

### IDE. Code Style, Formatting

- [`KT-5590`](https://youtrack.jetbrains.com/issue/KT-5590) kotlin: line comment must not be on first column by default
- [`KT-24496`](https://youtrack.jetbrains.com/issue/KT-24496) IntelliJ IDEA: Formatting around addition / subtraction not correct for Kotlin
- [`KT-25417`](https://youtrack.jetbrains.com/issue/KT-25417) Incorrect formatting for comments on property accessors
- [`KT-27847`](https://youtrack.jetbrains.com/issue/KT-27847) Destructured declaration continued on the next line is formatted with double indent
- [`KT-28070`](https://youtrack.jetbrains.com/issue/KT-28070) Code style: "Align when multiline" option for "extends / implements list" changes formating of enum constants constructor parameters
- [`KT-28227`](https://youtrack.jetbrains.com/issue/KT-28227) Formatter should not allow enum entries to be on one line with opening brace
- [`KT-28484`](https://youtrack.jetbrains.com/issue/KT-28484) Bad formatting for assignment when continuation for assignments is disabled

### IDE. Completion

- [`KT-18089`](https://youtrack.jetbrains.com/issue/KT-18089) Completion for nullable types without safe call rendered in gray color is barely visible
- [`KT-20706`](https://youtrack.jetbrains.com/issue/KT-20706) KDoc: Unneeded completion is invoked after typing a number/digit in a kdoc comment
- [`KT-22579`](https://youtrack.jetbrains.com/issue/KT-22579) Smart completion should present enum constants with higher rank
- [`KT-23834`](https://youtrack.jetbrains.com/issue/KT-23834) Code completion and auto import do not suggest extension that differs from member only in type parameter
- [`KT-25312`](https://youtrack.jetbrains.com/issue/KT-25312) Autocomplete for overridden members in `expected` class inserts extra `override` word
- [`KT-26632`](https://youtrack.jetbrains.com/issue/KT-26632) Completion: "data class" instead of "data"
- [`KT-27916`](https://youtrack.jetbrains.com/issue/KT-27916) Autocomplete val when auto-completing const

### IDE. Debugger

#### Fixes

- [`KT-13268`](https://youtrack.jetbrains.com/issue/KT-13268) Can't quick evaluate expression with Alt + Click without get operator
- [`KT-14075`](https://youtrack.jetbrains.com/issue/KT-14075) Debugger: Property syntax accesses private Java field rather than synthetic property accessor
- [`KT-22366`](https://youtrack.jetbrains.com/issue/KT-22366) Debugger doesn't stop on certain expressions
- [`KT-23585`](https://youtrack.jetbrains.com/issue/KT-23585) Evaluation of a static interface method call fails
- [`KT-24343`](https://youtrack.jetbrains.com/issue/KT-24343) Debugger, Step Over: IllegalStateException on two consecutive breakpoints when first breakpoint is on an inline function call
- [`KT-24959`](https://youtrack.jetbrains.com/issue/KT-24959) Evaluating my breakpoint condition fails with exception
- [`KT-25667`](https://youtrack.jetbrains.com/issue/KT-25667) Exception in logs from WeakBytecodeDebugInfoStorage (NoStrataPositionManagerHelper)
- [`KT-26795`](https://youtrack.jetbrains.com/issue/KT-26795) Debugger crashes with NullPointerException when evaluating const value in companion object
- [`KT-26798`](https://youtrack.jetbrains.com/issue/KT-26798) Check that step into works with overrides in inline classes
- [`KT-27414`](https://youtrack.jetbrains.com/issue/KT-27414) Use "toString" to render values of inline classes in debugger
- [`KT-27462`](https://youtrack.jetbrains.com/issue/KT-27462) Main without parameters just with inline fun call: Debug: last Step Over can't finish the process
- [`KT-28028`](https://youtrack.jetbrains.com/issue/KT-28028) IDEA is unable to find sources during debugging
- [`KT-28342`](https://youtrack.jetbrains.com/issue/KT-28342) Can't evaluate the synthetic 'field' variable
- [`KT-28487`](https://youtrack.jetbrains.com/issue/KT-28487) ISE “resultValue is null: cannot find method generated_for_debugger_fun” on evaluating value of inline class

### IDE. Decompiler

- [`KT-27284`](https://youtrack.jetbrains.com/issue/KT-27284) Disable highlighting in decompiled Kotlin bytecode
- [`KT-27460`](https://youtrack.jetbrains.com/issue/KT-27460) "Show Kotlin bytecode": "Internal error: null" for an inline extension property from a different file

### IDE. Gradle

- [`KT-27265`](https://youtrack.jetbrains.com/issue/KT-27265) Unresolved reference in IDE on calling JVM source set members of a multiplatform project with Android target from a plain Kotlin/JVM module

### IDE. Gradle. Script

- [`KT-14862`](https://youtrack.jetbrains.com/issue/KT-14862) IDEA links to class file instead of source in buildSrc (Gradle/Kotlin script)
- [`KT-17231`](https://youtrack.jetbrains.com/issue/KT-17231) "Optimize Import" action not working for Gradle script kotlin.
- [`KT-21981`](https://youtrack.jetbrains.com/issue/KT-21981) Optimize imports on the fly does not take implicit imports into account in .kts files
- [`KT-24623`](https://youtrack.jetbrains.com/issue/KT-24623) Class defined in gradle buildSrc folder is marked as unused when it is actually used in Gradle Script Kotlin file
- [`KT-24705`](https://youtrack.jetbrains.com/issue/KT-24705) Script reports are shown in the editor only after caret move
- [`KT-24706`](https://youtrack.jetbrains.com/issue/KT-24706) Do not attach script reports if 'reload dependencies' isn't pressed
- [`KT-25354`](https://youtrack.jetbrains.com/issue/KT-25354) Gradle Kotlin-DSL: Changes of buildSrc are not visible from other modules
- [`KT-25619`](https://youtrack.jetbrains.com/issue/KT-25619) Intentions not working in buildSrc (Gradle)
- [`KT-27674`](https://youtrack.jetbrains.com/issue/KT-27674) Highlighting is skipped in files from buildSrc folder of Gradle project

### IDE. Hints

- [`KT-13118`](https://youtrack.jetbrains.com/issue/KT-13118) Parameter info is not shown for Kotlin last-argument lambdas
- [`KT-25162`](https://youtrack.jetbrains.com/issue/KT-25162) Parameter info for builder functions and lambdas
- [`KT-26689`](https://youtrack.jetbrains.com/issue/KT-26689) Lambda return expression hint not shown when returning a lambda from inside a lambda
- [`KT-27802`](https://youtrack.jetbrains.com/issue/KT-27802) The hint for the if-expression is duplicated inside each branch

### IDE. Inspections and Intentions

#### New Features

- [`KT-2029`](https://youtrack.jetbrains.com/issue/KT-2029) Add inspection for boolean literals passed without using named parameters feature
- [`KT-5071`](https://youtrack.jetbrains.com/issue/KT-5071) Properly surround a function invocation in string template by curly braces
- [`KT-5187`](https://youtrack.jetbrains.com/issue/KT-5187) Quick Fix to remove inline keyword on warning about performance benefits
- [`KT-6025`](https://youtrack.jetbrains.com/issue/KT-6025) Auto-remove toString() call in "Convert concatenation to template"
- [`KT-9983`](https://youtrack.jetbrains.com/issue/KT-9983) "'inline'' modifier is not allowed on virtual members." should have quickfix
- [`KT-12743`](https://youtrack.jetbrains.com/issue/KT-12743) Add Intention to convert nullable var to non-nullable lateinit
- [`KT-15525`](https://youtrack.jetbrains.com/issue/KT-15525) Inspection to warn on thread-blocking invocations from coroutines
- [`KT-17004`](https://youtrack.jetbrains.com/issue/KT-17004) There is no suggestion to add property to supertype
- [`KT-19668`](https://youtrack.jetbrains.com/issue/KT-19668) Inspection "Redundant else in if"
- [`KT-20273`](https://youtrack.jetbrains.com/issue/KT-20273) Inspection to report a setter of a property with a backing field that doesn't update the backing field
- [`KT-20626`](https://youtrack.jetbrains.com/issue/KT-20626) Inspection for '+= creates a new list under the hood'
- [`KT-23691`](https://youtrack.jetbrains.com/issue/KT-23691) Warn about `var` properties with default setter and getter that doesn't reference backing field
- [`KT-24515`](https://youtrack.jetbrains.com/issue/KT-24515) Intention to add an exception under the cursor to @Throws annotations
- [`KT-25171`](https://youtrack.jetbrains.com/issue/KT-25171) Inspection: Change indexed access operator on maps to `Map.getValue`
- [`KT-25620`](https://youtrack.jetbrains.com/issue/KT-25620) Inspection for functions returning Deferred
- [`KT-25718`](https://youtrack.jetbrains.com/issue/KT-25718) Add intention to convert SAM lambda to anonymous object
- [`KT-26236`](https://youtrack.jetbrains.com/issue/KT-26236) QuickFix for ASSIGN_OPERATOR_AMBIGUITY on mutable collection '+=', '-='
- [`KT-26511`](https://youtrack.jetbrains.com/issue/KT-26511) Inspection (without highlighting by default) for unlabeled return inside lambda
- [`KT-26653`](https://youtrack.jetbrains.com/issue/KT-26653) Intention to replace if-else with `x?.let { ... } ?: ...`
- [`KT-26724`](https://youtrack.jetbrains.com/issue/KT-26724) Inspection with a warning for implementation by delegation to a `var` property
- [`KT-26836`](https://youtrack.jetbrains.com/issue/KT-26836) Add quick fix for type mismatch between signed and unsigned types for constant literals
- [`KT-27007`](https://youtrack.jetbrains.com/issue/KT-27007) Intention: add label to return if scope is visually ambiguous
- [`KT-27075`](https://youtrack.jetbrains.com/issue/KT-27075) Add a quick fix/intention to create `expect` member for an added `actual` declaration
- [`KT-27445`](https://youtrack.jetbrains.com/issue/KT-27445) Add quickfix for compiler warning "DEPRECATED_JAVA_ANNOTATION"
- [`KT-28118`](https://youtrack.jetbrains.com/issue/KT-28118) Remove empty parentheses for annotation entries
- [`KT-28631`](https://youtrack.jetbrains.com/issue/KT-28631) Suggest to remove single lambda argument if its name is equal to `it`
- [`KT-28696`](https://youtrack.jetbrains.com/issue/KT-28696) Inspection: detect potentially ambiguous usage of coroutineContext
- [`KT-28699`](https://youtrack.jetbrains.com/issue/KT-28699) Add "Convert to also" intention

#### Performance Improvements

- [`KT-26969`](https://youtrack.jetbrains.com/issue/KT-26969) ConvertCallChainIntoSequence quick fix doesn't use sequences all the way

#### Fixes

- [`KT-4645`](https://youtrack.jetbrains.com/issue/KT-4645) Unexpected behevior of "Replace 'if' with 'when'" intention when called on second or third 'if'
- [`KT-5088`](https://youtrack.jetbrains.com/issue/KT-5088) "Add else branch" quickfix on when should not add braces
- [`KT-7555`](https://youtrack.jetbrains.com/issue/KT-7555) Omit braces when converting 'this' in 'Convert concatenation to template'
- [`KT-8820`](https://youtrack.jetbrains.com/issue/KT-8820) No "Change type" quick fix inside when
- [`KT-8875`](https://youtrack.jetbrains.com/issue/KT-8875) "Remove explicit type" produce red code for extension lambda
- [`KT-12479`](https://youtrack.jetbrains.com/issue/KT-12479) IDEA doesn't propose to replace all usages of deprecated annotation when it declared w/o parentheses
- [`KT-13311`](https://youtrack.jetbrains.com/issue/KT-13311) IDE marks fun finalize() as unused and says that its effective visibility is private
- [`KT-14555`](https://youtrack.jetbrains.com/issue/KT-14555) Strange 'iterate over Nothing' intention
- [`KT-15550`](https://youtrack.jetbrains.com/issue/KT-15550) Intention "Add names to call arguments" isn't available if one argument is a generic function call
- [`KT-15835`](https://youtrack.jetbrains.com/issue/KT-15835) "Leaking 'this' in constructor" for enum class
- [`KT-16338`](https://youtrack.jetbrains.com/issue/KT-16338) "Leaking 'this' in constructor" of non-final class when using 'this::class.java'
- [`KT-20040`](https://youtrack.jetbrains.com/issue/KT-20040) Kotlin Gradle script: unused import doesn't become grey
- [`KT-20725`](https://youtrack.jetbrains.com/issue/KT-20725) Cannot persist excluded methods for inspection "Accessor call that can be replaced with property syntax"
- [`KT-21520`](https://youtrack.jetbrains.com/issue/KT-21520) "Assignment should be lifted out of 'if'" false positive for arguments of different types
- [`KT-23134`](https://youtrack.jetbrains.com/issue/KT-23134) "Remove single lambda parameter" quick fix applied to a lambda parameter with explicit type breaks ::invoke reference on lambda
- [`KT-23512`](https://youtrack.jetbrains.com/issue/KT-23512) "Remove redundant receiver" quick fix makes generic function call incompilable when type could be inferred from removed receiver only
- [`KT-23639`](https://youtrack.jetbrains.com/issue/KT-23639) False positive "Unused symbol" for sealed class type parameters
- [`KT-23693`](https://youtrack.jetbrains.com/issue/KT-23693) `Add missing actual members` quick fix doesn't work if there is already same-named function with the same signature
- [`KT-23744`](https://youtrack.jetbrains.com/issue/KT-23744) "Kotlin library and Gradle plugin versions are different" inspection false positive for non-JVM dependencies
- [`KT-24492`](https://youtrack.jetbrains.com/issue/KT-24492) "Call on collection type may be reduced" does not change labels from mapNotNull to map
- [`KT-25536`](https://youtrack.jetbrains.com/issue/KT-25536) Use non-const Kotlin 'val' usage in Java code isn't reported on case labels (& assignments)
- [`KT-25933`](https://youtrack.jetbrains.com/issue/KT-25933) ReplaceCallWithBinaryOperator should not suggest to replace 'equals' involving floating-point types
- [`KT-25953`](https://youtrack.jetbrains.com/issue/KT-25953) Meaningless auto properties for Atomic classes
- [`KT-25995`](https://youtrack.jetbrains.com/issue/KT-25995) "Simplify comparision" should try to apply "Simplify if expression" when necessary
- [`KT-26051`](https://youtrack.jetbrains.com/issue/KT-26051) False positive "Redundant visibility modifier" for overridden protected property setter made public
- [`KT-26337`](https://youtrack.jetbrains.com/issue/KT-26337) Exception (resource not found) in quick-fix tests in AS32
- [`KT-26481`](https://youtrack.jetbrains.com/issue/KT-26481) Flaky false positive "Receiver parameter is never used" for local extension function
- [`KT-26571`](https://youtrack.jetbrains.com/issue/KT-26571) Too much highlighting from "convert call chain into sequence"
- [`KT-26650`](https://youtrack.jetbrains.com/issue/KT-26650) False negative "Call chain on collection should be converted into 'Sequence'"" on class implementing `Iterable`
- [`KT-26662`](https://youtrack.jetbrains.com/issue/KT-26662) Corner cases around 'this' inside "replace if with safe access"
- [`KT-26669`](https://youtrack.jetbrains.com/issue/KT-26669) "Remove unnecessary parentheses" reports parens of function returned from extension function
- [`KT-26673`](https://youtrack.jetbrains.com/issue/KT-26673) "Remove parameter" quick fix keeps unused type parameter referred in type constraint
- [`KT-26710`](https://youtrack.jetbrains.com/issue/KT-26710) Should not report "implicit 'it' is shadowed" when outer `it` is not used
- [`KT-26839`](https://youtrack.jetbrains.com/issue/KT-26839) Add braces to if statement produces code that is not formatted according to style
- [`KT-26902`](https://youtrack.jetbrains.com/issue/KT-26902) Bad quickfix name for "Call on non-null type may be reduced"
- [`KT-27016`](https://youtrack.jetbrains.com/issue/KT-27016) Replace 'if' with elvis operator w/ interface generates invalid code (breaks type inference)
- [`KT-27034`](https://youtrack.jetbrains.com/issue/KT-27034) "Redundant SAM constructor" inspection shouldn't make all lambda gray (too much highlighting)
- [`KT-27061`](https://youtrack.jetbrains.com/issue/KT-27061) False positive "Convert to secondary constructor" with delegation
- [`KT-27071`](https://youtrack.jetbrains.com/issue/KT-27071) "Add non-null asserted (!!) call" places `!!` at wrong position with operator `get` (array indexing)
- [`KT-27093`](https://youtrack.jetbrains.com/issue/KT-27093) Create actual class from expect class doesn't add all necessary imports
- [`KT-27104`](https://youtrack.jetbrains.com/issue/KT-27104) False positive "Convert call chain into Sequence" with groupingBy
- [`KT-27116`](https://youtrack.jetbrains.com/issue/KT-27116) "Object literal can be converted to lambda" produces code littered with "return@label"
- [`KT-27138`](https://youtrack.jetbrains.com/issue/KT-27138) Change visibility intentions are suggested on properties marked with @JvmField
- [`KT-27139`](https://youtrack.jetbrains.com/issue/KT-27139) Add getter intention is suggested for properties marked with @JvmField
- [`KT-27146`](https://youtrack.jetbrains.com/issue/KT-27146) False positive "map.put() can be converted to assignment" on `super` keyword with `LinkedHashMap` inheritance
- [`KT-27156`](https://youtrack.jetbrains.com/issue/KT-27156) Introduce backing property intention is suggested for property marked with @JvmField
- [`KT-27157`](https://youtrack.jetbrains.com/issue/KT-27157) Convert property to function intention is suggested for property marked with @JvmField
- [`KT-27173`](https://youtrack.jetbrains.com/issue/KT-27173) "Lift return out of `...`" should work on any of targeted `return` keywords
- [`KT-27184`](https://youtrack.jetbrains.com/issue/KT-27184) "Replace with safe call" is not suggested for nullable var property that is impossible to smart cast
- [`KT-27209`](https://youtrack.jetbrains.com/issue/KT-27209) "Loop parameter 'it' is unused": unhelpful quickfix
- [`KT-27291`](https://youtrack.jetbrains.com/issue/KT-27291) "Create" quick fix: "destination directory" field suggests same root and JVM roots for all platforms
- [`KT-27354`](https://youtrack.jetbrains.com/issue/KT-27354) False positive "Make 'Foo' open" for `data` class inheritance
- [`KT-27408`](https://youtrack.jetbrains.com/issue/KT-27408) "Add braces to 'if' statement" moves end-of-line comment inside an `if` branch
- [`KT-27486`](https://youtrack.jetbrains.com/issue/KT-27486) ConvertCallChainIntoSequence quick fix doesn't convert 'unzip' into 'Sequence'
- [`KT-27539`](https://youtrack.jetbrains.com/issue/KT-27539) False positive `Redundant Companion reference` when val in companion is effectively shadowed by inherited val
- [`KT-27584`](https://youtrack.jetbrains.com/issue/KT-27584) False positive "Move lambda argument out of parentheses" when implementing interface by delegation
- [`KT-27590`](https://youtrack.jetbrains.com/issue/KT-27590) No “Change parameter” quick fix for changing argument type from UInt to Int
- [`KT-27619`](https://youtrack.jetbrains.com/issue/KT-27619) Inspection "Invalid property key" should check whether reference is soft or not
- [`KT-27664`](https://youtrack.jetbrains.com/issue/KT-27664) Fix flaky problem in tests "Could not initialize class UnusedSymbolInspection"
- [`KT-27699`](https://youtrack.jetbrains.com/issue/KT-27699) "Remove redundant spread operator" produces incorrect code
- [`KT-27708`](https://youtrack.jetbrains.com/issue/KT-27708) IDE highlights internal constructors used only from Java as unused
- [`KT-27791`](https://youtrack.jetbrains.com/issue/KT-27791) Don't suggest `Implement as constructor parameters` quick fix for `actual` class declaration
- [`KT-27861`](https://youtrack.jetbrains.com/issue/KT-27861) RedundantCompanionReference false positive for nested class with name "Companion"
- [`KT-27906`](https://youtrack.jetbrains.com/issue/KT-27906) SafeCastAndReturn is not reported on code block with unqualified return
- [`KT-27951`](https://youtrack.jetbrains.com/issue/KT-27951) False declaration in actual list (same name but not really actual)
- [`KT-28047`](https://youtrack.jetbrains.com/issue/KT-28047) False positive "Redundant lambda arrow" for lambda returned from `when` branch
- [`KT-28196`](https://youtrack.jetbrains.com/issue/KT-28196) KotlinAddImportAction: AWT events are not allowed inside write action
- [`KT-28200`](https://youtrack.jetbrains.com/issue/KT-28200) KNPE in TypeUtilsKt.getDataFlowAwareTypes
- [`KT-28268`](https://youtrack.jetbrains.com/issue/KT-28268) Don't suggest "make abstract" quick fix for inline classes
- [`KT-28286`](https://youtrack.jetbrains.com/issue/KT-28286) "Unused symbol" inspection: Interface is reported as "class"
- [`KT-28341`](https://youtrack.jetbrains.com/issue/KT-28341) False positive "Introduce backing property" intention for `const` values
- [`KT-28381`](https://youtrack.jetbrains.com/issue/KT-28381) Forbid "move property to constructor" for expect classes
- [`KT-28382`](https://youtrack.jetbrains.com/issue/KT-28382) Forbid "introduce backing property" for expect classes
- [`KT-28383`](https://youtrack.jetbrains.com/issue/KT-28383) Exception during "move to companion" for expect class member
- [`KT-28443`](https://youtrack.jetbrains.com/issue/KT-28443) "Move out of companion object" intention is suggested for @JvmField property inside companion object of interface
- [`KT-28504`](https://youtrack.jetbrains.com/issue/KT-28504) Redundant async inspection: support calls on explicitly given scope
- [`KT-28540`](https://youtrack.jetbrains.com/issue/KT-28540) "Replace assert boolean with assert equality" inspection quickfix doesn't add import statement
- [`KT-28618`](https://youtrack.jetbrains.com/issue/KT-28618) Kotlin: convert anonymous function to lambda expression failed if no space at start of lambda expression
- [`KT-28694`](https://youtrack.jetbrains.com/issue/KT-28694) "Assign backing field" quick fix adds empty line before created assignment
- [`KT-28716`](https://youtrack.jetbrains.com/issue/KT-28716) KotlinDefaultHighlightingSettingsProvider suppresses inspections in non-kotlin files
- [`KT-28744`](https://youtrack.jetbrains.com/issue/KT-28744) val-keyword went missing from constructor of inline class after applying “Create actual class...” intention
- [`KT-28745`](https://youtrack.jetbrains.com/issue/KT-28745) val-keyword went missing from constructor of inline class after applying “Create expected class in common module...” intention

### IDE. KDoc

- [`KT-24788`](https://youtrack.jetbrains.com/issue/KT-24788) Endless exceptions in offline inspections

### IDE. Multiplatform

- [`KT-26518`](https://youtrack.jetbrains.com/issue/KT-26518) `Create actual ...` quick fix doesn't add a primary constructor call for the actual secondary constructor
- [`KT-26893`](https://youtrack.jetbrains.com/issue/KT-26893) Multiplatform projects fail to import into Android Studio 3.3, 3.4
- [`KT-26957`](https://youtrack.jetbrains.com/issue/KT-26957) Merge expect gutter icon, when used for the same line
- [`KT-27295`](https://youtrack.jetbrains.com/issue/KT-27295) MPP: Rebuild module / Recompile source does nothing for Native with Delegate to gradle = Yes
- [`KT-27296`](https://youtrack.jetbrains.com/issue/KT-27296) MPP: Rebuild module / Recompile source does nothing for Common with Delegate to gradle = Yes
- [`KT-27335`](https://youtrack.jetbrains.com/issue/KT-27335) New multiplatform wizard: mobile library is generated with failed test
- [`KT-27595`](https://youtrack.jetbrains.com/issue/KT-27595) KNPE on attempt to generate `equals()`, `hashCode()`, `toString()` for `expect` class

### IDE. Navigation

- [`KT-22637`](https://youtrack.jetbrains.com/issue/KT-22637) Go to actual declarations for enum values should choose correct value if they are written in one line
- [`KT-27494`](https://youtrack.jetbrains.com/issue/KT-27494) Create tooling tests for new-multiplatform
- [`KT-28206`](https://youtrack.jetbrains.com/issue/KT-28206) Go to implementations on expect enum shows not only enum classes, but also all members
- [`KT-28398`](https://youtrack.jetbrains.com/issue/KT-28398) Broken navigation to actual declaration of `println()` in non-gradle project

### IDE. Project View

- [`KT-26210`](https://youtrack.jetbrains.com/issue/KT-26210) IOE “Cannot create file” on creating new file with existing filename by pasting a code in Project view
- [`KT-27903`](https://youtrack.jetbrains.com/issue/KT-27903) Can create file with empty name without any warning

### IDE. REPL

- [`KT-29285`](https://youtrack.jetbrains.com/issue/KT-29285) Starting REPL in Gradle project: Will compile into IDEA's out folder which then shadows Gradle's compile output

### IDE. Refactorings

- [`KT-23603`](https://youtrack.jetbrains.com/issue/KT-23603) Add the support for find usages/refactoring of the buildSrc sources in gradle kotlin DSL build scripts
- [`KT-26696`](https://youtrack.jetbrains.com/issue/KT-26696) Copy, Move: "Destination directory" field does not allow to choose a path from non-JVM module
- [`KT-28408`](https://youtrack.jetbrains.com/issue/KT-28408) "Extract interface" action should not show private properties
- [`KT-28476`](https://youtrack.jetbrains.com/issue/KT-28476) Extract interface / super class on non-JVM class throws KNPE

### IDE. Scratch

- [`KT-23523`](https://youtrack.jetbrains.com/issue/KT-23523) Filter out fake gradle modules from checkbox in Scratch file panel
- [`KT-25032`](https://youtrack.jetbrains.com/issue/KT-25032) Scratch: IDEA hangs/freezes on code that never returns (infinite loops)
- [`KT-26271`](https://youtrack.jetbrains.com/issue/KT-26271) Scratches for Kotlin  do not work when clicking "Run Scratch File" button
- [`KT-26332`](https://youtrack.jetbrains.com/issue/KT-26332) Fix classpath intention in Kotlin scratch file in Java only project doesn't do anything
- [`KT-27628`](https://youtrack.jetbrains.com/issue/KT-27628) Scratch blocks AWT Queue thread
- [`KT-28045`](https://youtrack.jetbrains.com/issue/KT-28045) 'Run kotlin scratch' is shown for jest tests

### IDE. Script

- [`KT-24465`](https://youtrack.jetbrains.com/issue/KT-24465) Provide a UI to manage script definitions
- [`KT-24466`](https://youtrack.jetbrains.com/issue/KT-24466) Add warning when there are multiple script definitions for one script
- [`KT-25818`](https://youtrack.jetbrains.com/issue/KT-25818) IDE Scripting Console files shouldn't have scratch panel
- [`KT-26331`](https://youtrack.jetbrains.com/issue/KT-26331) Please extract ScriptDefinitionContributor/KotlinScriptDefinition from kotlin-plugin.jar to separate jar
- [`KT-27669`](https://youtrack.jetbrains.com/issue/KT-27669) Consider moving expensive tasks out of the UI thread
- [`KT-27743`](https://youtrack.jetbrains.com/issue/KT-27743) Do not start multiple background threads loading dependencies for different scripts
- [`KT-27817`](https://youtrack.jetbrains.com/issue/KT-27817) Implement a lightweight EP in a separate public jar for supplying script definitions to IDEA
- [`KT-27960`](https://youtrack.jetbrains.com/issue/KT-27960) Add capability to import one Script to another
- [`KT-28046`](https://youtrack.jetbrains.com/issue/KT-28046) "Reload script dependencies on file change" option is missing after project restart

### IDE. Tests Support

- [`KT-27977`](https://youtrack.jetbrains.com/issue/KT-27977) Missing 'run' gutter on a test method of an abstract class
- [`KT-28080`](https://youtrack.jetbrains.com/issue/KT-28080) Wrong run configuration created from context for test method in abstract class

### JS. Tools

- [`KT-27361`](https://youtrack.jetbrains.com/issue/KT-27361) Support NamedConstructor in idl2k
- [`KT-28786`](https://youtrack.jetbrains.com/issue/KT-28786) Float values initialized incorrectly while translating from IDL
- [`KT-28821`](https://youtrack.jetbrains.com/issue/KT-28821) Kotlin/JS missing ClipboardEvent definitions
- [`KT-28864`](https://youtrack.jetbrains.com/issue/KT-28864) Better support for TrackEvent, MediaStreamTrackEvent and RTCTrackEvent in idl

### JavaScript

- [`KT-27611`](https://youtrack.jetbrains.com/issue/KT-27611) Calling a suspending function of a JS library causes "Uncaught ReferenceError: CoroutineImpl is not defined"
- [`KT-28207`](https://youtrack.jetbrains.com/issue/KT-28207) Finally block loops forever for specific code shape
- [`KT-28215`](https://youtrack.jetbrains.com/issue/KT-28215) JS: inline suspend function not usable in non-inlined form
- [`KT-29003`](https://youtrack.jetbrains.com/issue/KT-29003) KotlinJS: Size of String in stdlib is limited if the the Constructor String(chars: CharArray) gets used

### Libraries

#### New Features

- [`KT-18398`](https://youtrack.jetbrains.com/issue/KT-18398) Provide a way for libraries to avoid mixing Kotlin 1.0 and 1.1 dependencies in end user projects
- [`KT-27919`](https://youtrack.jetbrains.com/issue/KT-27919) Publish modularized artifacts under 'modular' classifier

#### Performance Improvements

- [`KT-27251`](https://youtrack.jetbrains.com/issue/KT-27251) Do not use Stack in FileTreeWalk iterator implementation

#### Fixes

- [`KT-12473`](https://youtrack.jetbrains.com/issue/KT-12473) KotlinJS - comparator returning 0 changes order
- [`KT-20743`](https://youtrack.jetbrains.com/issue/KT-20743) Use strongly typed events in Kotlin2js DOM API
- [`KT-20865`](https://youtrack.jetbrains.com/issue/KT-20865) Retrieving groups by name is not supported on Java 9 even with `kotlin-stdlib-jre8` in the classpath
- [`KT-23932`](https://youtrack.jetbrains.com/issue/KT-23932) add "PointerEvent" for kotlin-stdlib-js 
- [`KT-24336`](https://youtrack.jetbrains.com/issue/KT-24336) Kotlin/JS missing SVGMaskElement interface
- [`KT-25371`](https://youtrack.jetbrains.com/issue/KT-25371) Support unsigned integers in kotlinx-metadata-jvm
- [`KT-27629`](https://youtrack.jetbrains.com/issue/KT-27629) kotlin.test BeforeTest/AfterTest annotation mapping for TestNG
- [`KT-28091`](https://youtrack.jetbrains.com/issue/KT-28091) Provide correct AbstractMutableCollections declarations in stdlib-common
- [`KT-28251`](https://youtrack.jetbrains.com/issue/KT-28251) Stdlib: Deprecated ReplaceWith `kotlin.math.log` replacement instead of `kotlin.math.ln`
- [`KT-28488`](https://youtrack.jetbrains.com/issue/KT-28488) Add clarification for COROUTINES_SUSPENDED documentation
- [`KT-28572`](https://youtrack.jetbrains.com/issue/KT-28572) readLine() stumbles at surrogate pairs
- [`KT-29187`](https://youtrack.jetbrains.com/issue/KT-29187) JS toTypedArray returns array of invalid type for LongArray and BooleanArray

### Reflection

- [`KT-26765`](https://youtrack.jetbrains.com/issue/KT-26765) Support calling constructors with inline classes in the signature in reflection
- [`KT-27585`](https://youtrack.jetbrains.com/issue/KT-27585) Flaky IllegalPropertyDelegateAccessException: Cannot obtain the delegate of a non-accessible property. Use "isAccessible = true" to make the property accessible
- [`KT-27598`](https://youtrack.jetbrains.com/issue/KT-27598) "KotlinReflectionInternalError" when using `callBy` on constructor that has inline class parameters
- [`KT-27913`](https://youtrack.jetbrains.com/issue/KT-27913) ReflectJvmMapping.getKotlinFunction(ctor) works incorrectly with types containing variables of inline class

### Tools. CLI

- [`KT-27226`](https://youtrack.jetbrains.com/issue/KT-27226) Argfiles: An empty argument in quotes with a whitespace or a newline after it interrupts further reading of arguments
- [`KT-27430`](https://youtrack.jetbrains.com/issue/KT-27430) [Experimental API] Report warning instead of error if non-marker is used in -Xuse-experimental/-Xexperimental
- [`KT-27626`](https://youtrack.jetbrains.com/issue/KT-27626) -Xmodule-path does not work in Gradle project with Java 9
- [`KT-27709`](https://youtrack.jetbrains.com/issue/KT-27709) Using an experimental API that does not exist should warn, not error
- [`KT-27775`](https://youtrack.jetbrains.com/issue/KT-27775) Re-enable directories passed as <sources> in -Xbuild-file
- [`KT-27930`](https://youtrack.jetbrains.com/issue/KT-27930) Do not use toURI in ModuleVisibilityUtilsKt.isContainedByCompiledPartOfOurModule if possible
- [`KT-28180`](https://youtrack.jetbrains.com/issue/KT-28180) Backslash-separated file paths in argfiles do not work on Windows
- [`KT-28974`](https://youtrack.jetbrains.com/issue/KT-28974) Serialization bug in CommonToolArguments, affecting MPP project data serialization

### Tools. Compiler Plugins

- [`KT-24997`](https://youtrack.jetbrains.com/issue/KT-24997) Pass arguments to Kapt in human-readable format
- [`KT-24998`](https://youtrack.jetbrains.com/issue/KT-24998) Introduce separate command line tool specifically for Kapt in order to improve UX
- [`KT-25128`](https://youtrack.jetbrains.com/issue/KT-25128) ABI jar generation in the CLI compiler for Bazel like build systems.

### Tools. Gradle

#### New Features

- [`KT-26963`](https://youtrack.jetbrains.com/issue/KT-26963) Warn user that a custom platform-agnostic source set wouldn't be included into build unless it is required for other source sets
- [`KT-27394`](https://youtrack.jetbrains.com/issue/KT-27394) Add kotlinOptions in compilations of the new MPP model
- [`KT-27535`](https://youtrack.jetbrains.com/issue/KT-27535) Implement AARs building and publishing in new MPP
- [`KT-27685`](https://youtrack.jetbrains.com/issue/KT-27685) In new MPP, expose a compilation's default source set via DSL
- [`KT-28155`](https://youtrack.jetbrains.com/issue/KT-28155) Add ability to run tasks in parallel within project
- [`KT-28842`](https://youtrack.jetbrains.com/issue/KT-28842) Enable JS IC by default

#### Performance Improvements

- [`KT-24530`](https://youtrack.jetbrains.com/issue/KT-24530) Enable compile avoidance for kaptKotlin tasks
- [`KT-28037`](https://youtrack.jetbrains.com/issue/KT-28037) In-process Kotlin compiler leaks thread local values

#### Fixes

- [`KT-26065`](https://youtrack.jetbrains.com/issue/KT-26065) Kotlin Gradle plugin resolves dependencies at configuration time
- [`KT-26389`](https://youtrack.jetbrains.com/issue/KT-26389) Support Gradle Kotlin DSL in projects with the `kotlin-multiplatform` plugin
- [`KT-26663`](https://youtrack.jetbrains.com/issue/KT-26663) Gradle dependency DSL features missing for the new MPP dependencies
- [`KT-26808`](https://youtrack.jetbrains.com/issue/KT-26808) Deprecation Warning Gradle 5 - "DefaultSourceDirectorySet constructor has been deprecated"
- [`KT-26978`](https://youtrack.jetbrains.com/issue/KT-26978) Gradle verification fails on DiscoverScriptExtensionsTask
- [`KT-27682`](https://youtrack.jetbrains.com/issue/KT-27682) Kotlin MPP DSL: a target is missing the `attributes { ... }` function, only the `attributes` property is available.
- [`KT-27950`](https://youtrack.jetbrains.com/issue/KT-27950) Gradle 5.0-rc1: "Compilation with Kotlin compile daemon was not successful"
- [`KT-28355`](https://youtrack.jetbrains.com/issue/KT-28355) Gradle Kotlin plugin publishes "api" dependencies with runtime scope
- [`KT-28363`](https://youtrack.jetbrains.com/issue/KT-28363) Enable resources processing for Kotlin/JS target in multiplatform projects
- [`KT-28469`](https://youtrack.jetbrains.com/issue/KT-28469) Gradle Plugin: Task DiscoverScriptExtensionsTask is never up-to-date
- [`KT-28482`](https://youtrack.jetbrains.com/issue/KT-28482) Always rewrite the MPP dependencies in POMs, even when publishing with Gradle metadata
- [`KT-28520`](https://youtrack.jetbrains.com/issue/KT-28520) MPP plugin can't be applied altogether with the "maven-publish" plugin in a Gradle 5 build
- [`KT-28635`](https://youtrack.jetbrains.com/issue/KT-28635) fromPreset() in MPP Gradle plugin DSL is hard to use from Gradle Kotlin DSL scripts
- [`KT-28749`](https://youtrack.jetbrains.com/issue/KT-28749) Expose `allKotlinSourceSets` in `KotlinCompilation`
- [`KT-28795`](https://youtrack.jetbrains.com/issue/KT-28795) The localToProject attribute is not properly disambiguated with Gradle 4.10.2+
- [`KT-28836`](https://youtrack.jetbrains.com/issue/KT-28836) Kotlin compiler logs from Gradle Kotlin Plugin aren't captured by Gradle
- [`KT-29058`](https://youtrack.jetbrains.com/issue/KT-29058) Gradle Plugin: Multiplatform project with maven-publish plugin does not use project group for "metadata" artifact POM

### Tools. J2K

- [`KT-26073`](https://youtrack.jetbrains.com/issue/KT-26073) Irrelevant "create extra commit with java->kt rename"

### Tools. JPS

- [`KT-26980`](https://youtrack.jetbrains.com/issue/KT-26980) JPS Native warning is duplicated for test source sets
- [`KT-27285`](https://youtrack.jetbrains.com/issue/KT-27285) MPP: invalid common -> platform dependency: JPS fails with Throwable "Cannot initialize Kotlin context: Cyclically dependent modules" at KotlinChunk.<init>()
- [`KT-27622`](https://youtrack.jetbrains.com/issue/KT-27622) JPS, JS: Resources marked as "kotlin-resource" are not copied to the out folder in a Kotlin-js project
- [`KT-28095`](https://youtrack.jetbrains.com/issue/KT-28095) JPS: support -Xcommon-sources for multiplatform projects (JS)
- [`KT-28316`](https://youtrack.jetbrains.com/issue/KT-28316) Report `Native is not yet supported in IDEA internal build system` on JPS build once per project/multiplatform module
- [`KT-28527`](https://youtrack.jetbrains.com/issue/KT-28527) JPS: Serialization plugin not loaded in ktor
- [`KT-28900`](https://youtrack.jetbrains.com/issue/KT-28900) With "Keep compiler process alive between invocations = No" (disabled daemon) JPS rebuild fails with SCE: "Provider AndroidCommandLineProcessor not a subtype" at PluginCliParser.processPluginOptions()

### Tools. Scripts

- [`KT-27382`](https://youtrack.jetbrains.com/issue/KT-27382) Embeddable version of scripting support (KEEP 75)
- [`KT-27497`](https://youtrack.jetbrains.com/issue/KT-27497) kotlin script -  No class roots are found in the JDK path
- [`KT-29293`](https://youtrack.jetbrains.com/issue/KT-29293) Script compilation - standard libs are not added to the dependencies
- [`KT-29301`](https://youtrack.jetbrains.com/issue/KT-29301) Some ivy resolvers are proguarded out of the kotlin-main-kts
- [`KT-29319`](https://youtrack.jetbrains.com/issue/KT-29319) scripts default jvmTarget causes inlining problems - default should be 1.8

### Tools. kapt

#### New Features

- [`KT-28024`](https://youtrack.jetbrains.com/issue/KT-28024) Kapt: Add option for printing timings for individual annotation processors
- [`KT-28025`](https://youtrack.jetbrains.com/issue/KT-28025) Detect memory leaks in annotation processors

#### Performance Improvements

- [`KT-28852`](https://youtrack.jetbrains.com/issue/KT-28852) Cache classloaders for tools.jar and kapt in Gradle workers

#### Fixes

- [`KT-24368`](https://youtrack.jetbrains.com/issue/KT-24368) Kapt: Do not include compile classpath entries in the annotation processing classpath
- [`KT-25756`](https://youtrack.jetbrains.com/issue/KT-25756) Investigate file descriptors leaks in kapt
- [`KT-26145`](https://youtrack.jetbrains.com/issue/KT-26145) Using `kapt` without the `kotlin-kapt` plugin should throw a build error
- [`KT-26304`](https://youtrack.jetbrains.com/issue/KT-26304) Build fails with "cannot find symbol" using gRPC with dagger; stub compilation fails to find classes generated by kapt
- [`KT-26725`](https://youtrack.jetbrains.com/issue/KT-26725) Kapt does not handle androidx.annotation.RecentlyNullable correctly
- [`KT-26817`](https://youtrack.jetbrains.com/issue/KT-26817) kapt 1.2.60+ ignores .java files that are symlinks
- [`KT-27126`](https://youtrack.jetbrains.com/issue/KT-27126) kapt: class implementing List<T> generates bad stub
- [`KT-27188`](https://youtrack.jetbrains.com/issue/KT-27188) kapt Gradle plugin fails in Java 10+ ("Cannot find tools.jar")
- [`KT-27334`](https://youtrack.jetbrains.com/issue/KT-27334) [Kapt] Stub generator uses constant value in method annotation instead of constant name.
- [`KT-27404`](https://youtrack.jetbrains.com/issue/KT-27404) Kapt does not call annotation processors on custom (e.g., androidTest) source sets if all dependencies are inherited from the main kapt configuration
- [`KT-27487`](https://youtrack.jetbrains.com/issue/KT-27487) Previous value is passed to annotation parameter using annotation processing
- [`KT-27711`](https://youtrack.jetbrains.com/issue/KT-27711) kapt: ArrayIndexOutOfBoundsException: 0
- [`KT-27910`](https://youtrack.jetbrains.com/issue/KT-27910) Kapt lazy stub without explicit type that initializes an object expression breaks stubbing


## 1.3.11

### Compiler

- [`KT-28097`](https://youtrack.jetbrains.com/issue/KT-28097) AbstractMethodError for @JvmSuppressWildcards annotation used with coroutines
- [`KT-28225`](https://youtrack.jetbrains.com/issue/KT-28225) Report a warning when comparing incompatible enums

### IDE. Gradle

- [`KT-28389`](https://youtrack.jetbrains.com/issue/KT-28389) MPP IDE import does not recognize a dependency from a subproject to the root project

### IDE. Inspections and Intentions

- [`KT-28445`](https://youtrack.jetbrains.com/issue/KT-28445) "Redundant async" inspection does not work with release coroutines

### IDE. Multiplatform

- [`KT-27632`](https://youtrack.jetbrains.com/issue/KT-27632) MPP IDE commonMain cannot see other commonMain types transitively which are exposed through a middle multiplatform module

### JavaScript

- [`KT-27946`](https://youtrack.jetbrains.com/issue/KT-27946) Late initialization based on contracts breaks Kotlin/JS in 1.3.0

### Tools. Gradle

- [`KT-27500`](https://youtrack.jetbrains.com/issue/KT-27500) MPP: Native: `.module` dependency is reported as error in the IDE after import


## 1.3.10

### Compiler

- [`KT-27758`](https://youtrack.jetbrains.com/issue/KT-27758) Kotlin 1.3 breaks compilation of calling of function named 'contract' with block as a last parameter
- [`KT-27895`](https://youtrack.jetbrains.com/issue/KT-27895) Kotlin 1.3.0 broken runtime annotation issue

### IDE

- [`KT-27230`](https://youtrack.jetbrains.com/issue/KT-27230) Freeze on paste
- [`KT-27907`](https://youtrack.jetbrains.com/issue/KT-27907) Exception on processing auto-generated classes from AS

### IDE. Debugger

- [`KT-27540`](https://youtrack.jetbrains.com/issue/KT-27540) 2018.3 and 2019.1 Debugger: Evaluating anything fails with KNPE in LabelNormalizationMethodTransformer
- [`KT-27833`](https://youtrack.jetbrains.com/issue/KT-27833) Evaluate exception in 183/191 with `asm-7.0-beta1`/'asm-7.0'
- [`KT-27965`](https://youtrack.jetbrains.com/issue/KT-27965) Sequence debugger does not work in Android Studio
- [`KT-27980`](https://youtrack.jetbrains.com/issue/KT-27980) Kotlin sequence debugger throws IDE exception in IDEA 183

### IDE. Gradle

- [`KT-27265`](https://youtrack.jetbrains.com/issue/KT-27265) Unresolved reference in IDE on calling JVM source set members of a multiplatform project with Android target from a plain Kotlin/JVM module
- [`KT-27849`](https://youtrack.jetbrains.com/issue/KT-27849) IntelliJ: Wrong scope of JVM platform MPP dependency

### IDE. Inspections and Intentions

- [`KT-26481`](https://youtrack.jetbrains.com/issue/KT-26481) Flaky false positive "Receiver parameter is never used" for local extension function
- [`KT-27357`](https://youtrack.jetbrains.com/issue/KT-27357) Function with inline class type value parameters is marked as unused by IDE
- [`KT-27434`](https://youtrack.jetbrains.com/issue/KT-27434) False positive "Unused symbol" inspection for functions and secondary constructors of inline classes
- [`KT-27945`](https://youtrack.jetbrains.com/issue/KT-27945) Quick-fix whitespace bug in KtPrimaryConstructor.addAnnotationEntry()

### IDE. Scratch

- [`KT-27746`](https://youtrack.jetbrains.com/issue/KT-27746) Scratch: "Cannot pop operand off an empty stack" in a new scratch file

### IDE. Tests Support

- [`KT-27371`](https://youtrack.jetbrains.com/issue/KT-27371) Common tests can not be launched from gutter in MPP Android/iOS project

### Reflection

- [`KT-27878`](https://youtrack.jetbrains.com/issue/KT-27878) Spring: "AssertionError: Non-primitive type name passed: void"

### Tools. Gradle

- [`KT-27160`](https://youtrack.jetbrains.com/issue/KT-27160) Kotlin Gradle plugin 1.3 resolves script configurations during project evaluation
- [`KT-27803`](https://youtrack.jetbrains.com/issue/KT-27803) CInterop input configuration has 'java-api' as a Usage attribute value in new MPP
- [`KT-27984`](https://youtrack.jetbrains.com/issue/KT-27984) Kotlin Gradle Plugin: Circular dependency

### Tools. JPS

- [`KT-26489`](https://youtrack.jetbrains.com/issue/KT-26489) JPS: support -Xcommon-sources for multiplatform projects (JVM)
- [`KT-27037`](https://youtrack.jetbrains.com/issue/KT-27037) Incremental compilation failed after update to 1.3.0-rc-60
- [`KT-27792`](https://youtrack.jetbrains.com/issue/KT-27792) Incremental compilation failed with NullPointerException in KotlinCompileContext.markChunkForRebuildBeforeBuild

### Tools. kapt

- [`KT-27126`](https://youtrack.jetbrains.com/issue/KT-27126) kapt: class implementing List<T> generates bad stub


## 1.3.0

### IDE

- [`KT-25429`](https://youtrack.jetbrains.com/issue/KT-25429) Replace update channel in IDE plugin
- [`KT-27793`](https://youtrack.jetbrains.com/issue/KT-27793) kotlinx.android.synthetic is unresolved on project reopening

### IDE. Inspections and Intentions

- [`KT-27619`](https://youtrack.jetbrains.com/issue/KT-27619) Inspection "Invalid property key" should check whether reference is soft or not

## 1.3-RC4

### Compiler

#### Fixes

- [`KT-26858`](https://youtrack.jetbrains.com/issue/KT-26858) Inline class access to private companion object value fails with NSME
- [`KT-27030`](https://youtrack.jetbrains.com/issue/KT-27030) Non-capturing lambda in inline class members fails with internal error (NPE in genClosure)
- [`KT-27031`](https://youtrack.jetbrains.com/issue/KT-27031) Inline extension lambda in inline class fun fails with internal error (wrong bytecode generated)
- [`KT-27033`](https://youtrack.jetbrains.com/issue/KT-27033) Anonymous object in inline class fun fails with internal error (NPE in generateObjectLiteral/.../writeOuterClassAndEnclosingMethod)
- [`KT-27096`](https://youtrack.jetbrains.com/issue/KT-27096) AnalyzerException: Error at instruction 71: Expected I, but found . when function takes unsigned type with default value and returns nullable inline class
- [`KT-27130`](https://youtrack.jetbrains.com/issue/KT-27130) Suspension point is inside a critical section regression
- [`KT-27132`](https://youtrack.jetbrains.com/issue/KT-27132) CCE when inline class is boxed
- [`KT-27258`](https://youtrack.jetbrains.com/issue/KT-27258) Report diagnostic for suspension point inside critical section for crossinline suspend lambdas
- [`KT-27393`](https://youtrack.jetbrains.com/issue/KT-27393) Incorrect inline class type coercion in '==' with generic call
- [`KT-27484`](https://youtrack.jetbrains.com/issue/KT-27484) Suspension points in synchronized blocks checker crashes
- [`KT-27502`](https://youtrack.jetbrains.com/issue/KT-27502) Boxed inline class backed by Any is not unboxed before method invocation
- [`KT-27526`](https://youtrack.jetbrains.com/issue/KT-27526) Functional type with inline class argument and suspend modified expects unboxed value while it is boxed
- [`KT-27615`](https://youtrack.jetbrains.com/issue/KT-27615) Double wrap when inline class is printing if it was obtained from list/map
- [`KT-27620`](https://youtrack.jetbrains.com/issue/KT-27620) Report error when using value of kotlin.Result type as an extension receiver with safe call

### IDE

- [`KT-27298`](https://youtrack.jetbrains.com/issue/KT-27298) Deadlock on project open
- [`KT-27329`](https://youtrack.jetbrains.com/issue/KT-27329) Migration doesn't work for kts projects when versions are stored in kt files inside buildSrc directory
- [`KT-27355`](https://youtrack.jetbrains.com/issue/KT-27355) Assertion error from light classes (expected callable member was null) for type alias in JvmMultifileClass annotated file
- [`KT-27456`](https://youtrack.jetbrains.com/issue/KT-27456) New Project wizard: Kotlin (Multiplatform Library): consider generating source files with different names to work around KT-21186
- [`KT-27473`](https://youtrack.jetbrains.com/issue/KT-27473) "Gradle sync failed: Already disposed: Module: 'moduleName-app_commonMain'" on reimport of a multiplatform project with Android target between different IDEs
- [`KT-27485`](https://youtrack.jetbrains.com/issue/KT-27485) Gradle import failed with "Already disposed" error on reopening of a multiplatform project with Android target
- [`KT-27572`](https://youtrack.jetbrains.com/issue/KT-27572) ISE: "Could not generate LightClass for entry declared in <null>" at CompilationErrorHandler.lambda$static$0()

### IDE. Android

- [`KT-26975`](https://youtrack.jetbrains.com/issue/KT-26975) CNFDE KotlinAndroidGradleOrderEnumerationHandler$FactoryImpl in AS 3.3 with Kotlin 1.3.0-rc-51
- [`KT-27451`](https://youtrack.jetbrains.com/issue/KT-27451) `main` target platform selection is not working in a multiplatform project with Android and JVM targets in Android Studio

### IDE. Gradle

- [`KT-27365`](https://youtrack.jetbrains.com/issue/KT-27365) Dependencies between Java project and MPP one are not respected by import
- [`KT-27643`](https://youtrack.jetbrains.com/issue/KT-27643) First import of Android project miss skips some dependencies in IDEA 183

### IDE. Multiplatform

- [`KT-27356`](https://youtrack.jetbrains.com/issue/KT-27356) Use `kotlin-stdlib` instead of `kotlin-stdlib-jdk8` in Android-related MPP templates

### IDE. Scratch

- [`KT-24180`](https://youtrack.jetbrains.com/issue/KT-24180) Add key shortcut and action for running a kotlin scratch file (green arrow button in the editor tool-buttons)

### JavaScript

- [`KT-26320`](https://youtrack.jetbrains.com/issue/KT-26320) JS: forEach + firstOrNull + when combination does not compile correctly
- [`KT-26787`](https://youtrack.jetbrains.com/issue/KT-26787) Incorrect JS code translation: `when` statement inside `for` loop breaks out of the loop

### Libraries

- [`KT-27508`](https://youtrack.jetbrains.com/issue/KT-27508) Rename Random companion object to Default

### Tools. Gradle

- [`KT-26758`](https://youtrack.jetbrains.com/issue/KT-26758) Unify Gradle DSL for compiler flags in new multiplatform model
- [`KT-26840`](https://youtrack.jetbrains.com/issue/KT-26840) Support -Xuse-experimental in the new MPP language settings DSL
- [`KT-27278`](https://youtrack.jetbrains.com/issue/KT-27278) New MPP plugin is binary-incompatible with Gradle 5.0
- [`KT-27499`](https://youtrack.jetbrains.com/issue/KT-27499) In new MPP, support compiler plugins (subplugins) options import into the IDE for each source set

### Tools. JPS

- [`KT-27044`](https://youtrack.jetbrains.com/issue/KT-27044) JPS rebuilds twice when dependency is updated

### Tools. kapt

- [`KT-27119`](https://youtrack.jetbrains.com/issue/KT-27119) kapt: val without explicit type that is assigned an object expression implementing a generic interface breaks compilation


## 1.3-RC3

### Compiler

- [`KT-26300`](https://youtrack.jetbrains.com/issue/KT-26300) Smartcasts don't work if pass same fields of instances of the same class in contract function with conjunction not-null condition
- [`KT-27221`](https://youtrack.jetbrains.com/issue/KT-27221) Incorrect smart cast for sealed classes with a multilevel hierarchy

### IDE

- [`KT-27163`](https://youtrack.jetbrains.com/issue/KT-27163) Replace coroutine migration dialog with notification
- [`KT-27200`](https://youtrack.jetbrains.com/issue/KT-27200) New MPP wizard: mobile library
- [`KT-27201`](https://youtrack.jetbrains.com/issue/KT-27201) MPP library wizards: provide maven publishing
- [`KT-27214`](https://youtrack.jetbrains.com/issue/KT-27214) Android test source directories are not recognised in IDE
- [`KT-27351`](https://youtrack.jetbrains.com/issue/KT-27351) Better fix for coroutines outdated versions in Gradle and Maven

### IDE. Android

- [`KT-27331`](https://youtrack.jetbrains.com/issue/KT-27331) Missing dependencies in Android project depending on MPP project

### IDE. Inspections and Intentions

- [`KT-27164`](https://youtrack.jetbrains.com/issue/KT-27164) Create a quick fix for replacing obsolete coroutines in the whole project

### IDE. Multiplatform

- [`KT-27029`](https://youtrack.jetbrains.com/issue/KT-27029) Multiplatform project is unloaded if Gradle refresh/reimport is failed

### Libraries

- [`KT-22869`](https://youtrack.jetbrains.com/issue/KT-22869) Improve docs of assertFailsWith function

### Tools. CLI

- [`KT-27218`](https://youtrack.jetbrains.com/issue/KT-27218) From @<argfile> not all whitespace characters are parsed correctly

### Tools. Compiler Plugins

- [`KT-27166`](https://youtrack.jetbrains.com/issue/KT-27166) Disable kotlinx.serialization plugin in IDE by default

## 1.3-RC2

### Android

- [`KT-27006`](https://youtrack.jetbrains.com/issue/KT-27006) Android extensions are not recognised by IDE in multiplatform projects
- [`KT-27008`](https://youtrack.jetbrains.com/issue/KT-27008) Compiler plugins are not working in multiplatform projects with Android target

### Compiler

- [`KT-24415`](https://youtrack.jetbrains.com/issue/KT-24415) Remove bridge flag from default methods
- [`KT-24510`](https://youtrack.jetbrains.com/issue/KT-24510) Coroutines make Android's D8 angry
- [`KT-25545`](https://youtrack.jetbrains.com/issue/KT-25545) Import statement of `@Experimental` element causes compiler warning/error, but annotation can't be used to avoid it
- [`KT-26382`](https://youtrack.jetbrains.com/issue/KT-26382) Wrong smartcast if used safe call + returnsNull effect
- [`KT-26640`](https://youtrack.jetbrains.com/issue/KT-26640) Check inference behaviour for coroutines that it's possible to improve it in compatible way
- [`KT-26804`](https://youtrack.jetbrains.com/issue/KT-26804) Make sure @PublishedAPI is retained in binary representation of a primary constructor of an inline class
- [`KT-27079`](https://youtrack.jetbrains.com/issue/KT-27079) Allow using extensions without opt-in in builder-inference if they add only trivial constraints
- [`KT-27084`](https://youtrack.jetbrains.com/issue/KT-27084) smart cast to non-nullable regression from 1.2.70 to 1.3.0-rc-57
- [`KT-27117`](https://youtrack.jetbrains.com/issue/KT-27117) IllegalAccessError when using private Companion field inside inline lambda
- [`KT-27121`](https://youtrack.jetbrains.com/issue/KT-27121) Illegal field modifiers in class for a field of an interface companion
- [`KT-27161`](https://youtrack.jetbrains.com/issue/KT-27161) Getting "Backend Internal error: Descriptor can be left only if it is last" using new when syntax

### IDE

#### New Features

- [`KT-26313`](https://youtrack.jetbrains.com/issue/KT-26313) Support ResolveScopeEnlarger in Kotlin IDE
- [`KT-26786`](https://youtrack.jetbrains.com/issue/KT-26786) MPP builders: create not only build.gradle but some example files also

#### Fixes

- [`KT-13948`](https://youtrack.jetbrains.com/issue/KT-13948) IDE plugins: improve description
- [`KT-14981`](https://youtrack.jetbrains.com/issue/KT-14981) IDE should accept only its variant of plugin, as possible
- [`KT-23864`](https://youtrack.jetbrains.com/issue/KT-23864) Copyright message is duplicated in kotlin file in root package after updating copyright
- [`KT-24907`](https://youtrack.jetbrains.com/issue/KT-24907) please remove usages of com.intellij.openapi.vfs.StandardFileSystems#getJarRootForLocalFile deprecated long ago
- [`KT-25449`](https://youtrack.jetbrains.com/issue/KT-25449) Mark classes loaded by custom class loader with @DynamicallyLoaded annotation for the sake of better static analysis
- [`KT-25463`](https://youtrack.jetbrains.com/issue/KT-25463) API version in Kotlin facets isn't automatically set to 1.3 when importing a project in Gradle
- [`KT-25952`](https://youtrack.jetbrains.com/issue/KT-25952) New Project Wizard: generate MPP in a new way
- [`KT-26501`](https://youtrack.jetbrains.com/issue/KT-26501) Fix "IDEA internal actions" group text to "Kotlin internal actions"
- [`KT-26695`](https://youtrack.jetbrains.com/issue/KT-26695) IDEA takes 1.3-M2-release plugin as more recent than any 1.3.0-dev-nnn or 1.3.0-rc-nnn plugin
- [`KT-26763`](https://youtrack.jetbrains.com/issue/KT-26763) Compiler options are not imported into Kotlin facet for a Native module
- [`KT-26774`](https://youtrack.jetbrains.com/issue/KT-26774) Create IDE setting for experimental inline classes
- [`KT-26889`](https://youtrack.jetbrains.com/issue/KT-26889) Don't show migration dialog if no actual migrations are available
- [`KT-26933`](https://youtrack.jetbrains.com/issue/KT-26933) No jre -> jdk fix in Gradle file if version isn't written explicitly
- [`KT-26937`](https://youtrack.jetbrains.com/issue/KT-26937) MPP: Gradle import: adding `target` definition after importing its `sourceSet` does not correct the module SDK
- [`KT-26953`](https://youtrack.jetbrains.com/issue/KT-26953) New MPP project wrong formatting
- [`KT-27021`](https://youtrack.jetbrains.com/issue/KT-27021) Wrong JVM target if no Kotlin facet is specified
- [`KT-27100`](https://youtrack.jetbrains.com/issue/KT-27100) Version migration dialog is not shown in Studio 3.3
- [`KT-27145`](https://youtrack.jetbrains.com/issue/KT-27145) Gradle import: JVM modules gets no JDK in dependencies
- [`KT-27177`](https://youtrack.jetbrains.com/issue/KT-27177) MPP wizards: use Gradle 4.7 only
- [`KT-27193`](https://youtrack.jetbrains.com/issue/KT-27193) Gradle import: with Kotlin configured Android module gets non-Android JDK

### IDE. Code Style, Formatting

- [`KT-27027`](https://youtrack.jetbrains.com/issue/KT-27027) Formatter puts when subject variable on a new line

### IDE. Completion

- [`KT-25313`](https://youtrack.jetbrains.com/issue/KT-25313) Autocomplete generates incorrect code on fields overriding by `expected` class

### IDE. Hints

- [`KT-26057`](https://youtrack.jetbrains.com/issue/KT-26057) (arguably) redundant hint shown for enum value when qualified with enum class

### IDE. Inspections and Intentions

- [`KT-14929`](https://youtrack.jetbrains.com/issue/KT-14929) Deprecated ReplaceWith for type aliases
- [`KT-25251`](https://youtrack.jetbrains.com/issue/KT-25251) Create intention for migration coroutines from experimental to released state
- [`KT-26027`](https://youtrack.jetbrains.com/issue/KT-26027) False positive from "Nested lambda has shadowed implicit parameter" inspection for SAM conversion
- [`KT-26268`](https://youtrack.jetbrains.com/issue/KT-26268) Inspection "Nested lambda has shadowed implicit parameter" should only warn if parameter is used
- [`KT-26775`](https://youtrack.jetbrains.com/issue/KT-26775) Create quick fix that enable or disable experimental inline classes in project
- [`KT-26991`](https://youtrack.jetbrains.com/issue/KT-26991) ReplaceWith for object doesn't work anymore

### IDE. Multiplatform

- [`KT-24060`](https://youtrack.jetbrains.com/issue/KT-24060) `main` function in common part of MPP project: allow user to choose between platform modules to run it from
- [`KT-26647`](https://youtrack.jetbrains.com/issue/KT-26647) Warn user about incompatible/ignored Native targets on Gradle build of a project with the new multiplatform model
- [`KT-26690`](https://youtrack.jetbrains.com/issue/KT-26690) IDE significantly slows down having Native target in a multiplatform project
- [`KT-26872`](https://youtrack.jetbrains.com/issue/KT-26872) MPP: JS: Node.js run configuration is created with not existing JavaScript file
- [`KT-26942`](https://youtrack.jetbrains.com/issue/KT-26942) MPP IDE: JS test configuration removes gutter actions from common module
- [`KT-27010`](https://youtrack.jetbrains.com/issue/KT-27010) New mpp: missing run gutters in common code when relevant platform roots do not exist
- [`KT-27133`](https://youtrack.jetbrains.com/issue/KT-27133) IDE requires `actual` implementations to be also present in test source sets
- [`KT-27172`](https://youtrack.jetbrains.com/issue/KT-27172) ISE: "The provided plugin org.jetbrains.kotlin.android.synthetic.AndroidComponentRegistrar is not compatible with this version of compiler" on build of a multiplatform project with iOS and Android

### IDE. Navigation

- [`KT-25055`](https://youtrack.jetbrains.com/issue/KT-25055) Android modules are named same as JVM ones in `actual` gutter tooltip
- [`KT-26004`](https://youtrack.jetbrains.com/issue/KT-26004) IDE: Unable to navigate to common library declaration from platform code (not necessarily in an MPP project)

### IDE. Tests Support

- [`KT-23884`](https://youtrack.jetbrains.com/issue/KT-23884) Running common module test in IDE results in "no JDK specified" error
- [`KT-23911`](https://youtrack.jetbrains.com/issue/KT-23911) Cannot jump to source from common test function in Run tool window

### Libraries

- [`KT-18608`](https://youtrack.jetbrains.com/issue/KT-18608) Result type for Kotlin (aka Try monad)
- [`KT-26666`](https://youtrack.jetbrains.com/issue/KT-26666) Add documentation for contract DSL

### Reflection

- [`KT-24170`](https://youtrack.jetbrains.com/issue/KT-24170) Instance parameter of inherited declaration should have the type of subclass, not the base class

### Tools. Compiler Plugins

- [`KT-24444`](https://youtrack.jetbrains.com/issue/KT-24444) Do not store proxy objects from Gradle importer in the project model

### Tools. Gradle

- [`KT-25200`](https://youtrack.jetbrains.com/issue/KT-25200) Report a warning when building multiplatform code in Gradle
- [`KT-26390`](https://youtrack.jetbrains.com/issue/KT-26390) Implement source JARs building and publishing in new MPP
- [`KT-26771`](https://youtrack.jetbrains.com/issue/KT-26771) New Native MPP Gradle plugin creates publications only for host system
- [`KT-26834`](https://youtrack.jetbrains.com/issue/KT-26834) Gradle compilation of multimodule project fails with Could not resolve all files for configuration ':example-v8:apiDependenciesMetadata'
- [`KT-27111`](https://youtrack.jetbrains.com/issue/KT-27111) `org.jetbrains.kotlin.platform.type` is not set for some Gradle configurations in multiplatform plugin
- [`KT-27196`](https://youtrack.jetbrains.com/issue/KT-27196) Support Kotlin/JS DCE in new MPP

### Tools. Scripts

- [`KT-26828`](https://youtrack.jetbrains.com/issue/KT-26828) main-kts test fails with "Error processing script definition class"
- [`KT-27015`](https://youtrack.jetbrains.com/issue/KT-27015) Scripting sample from 1.3 RC blogpost does not work
- [`KT-27050`](https://youtrack.jetbrains.com/issue/KT-27050) 1.3-RC Scripting @file:Repository and @file:DependsOn annotations are not repeatable

## 1.3-RC

### Compiler

#### New Features

- [`KT-17679`](https://youtrack.jetbrains.com/issue/KT-17679) Support suspend fun main in JVM
- [`KT-24854`](https://youtrack.jetbrains.com/issue/KT-24854) Support suspend function types for arities bigger than 22
- [`KT-26574`](https://youtrack.jetbrains.com/issue/KT-26574) Support main entry-point without arguments in frontend, IDE and JVM

#### Performance Improvements

- [`KT-26490`](https://youtrack.jetbrains.com/issue/KT-26490) Change boxing technique: instead of calling `valueOf`, allocate new wrapper type

#### Fixes

- [`KT-22069`](https://youtrack.jetbrains.com/issue/KT-22069) Array class literals are always loaded as `Array<*>` from deserialized annotations
- [`KT-22892`](https://youtrack.jetbrains.com/issue/KT-22892) Call of `invoke` function with lambda parameter on a field named `suspend` should be reported
- [`KT-24708`](https://youtrack.jetbrains.com/issue/KT-24708) Incorrect WhenMappings code generated in case of mixed enum classes in when conditions
- [`KT-24853`](https://youtrack.jetbrains.com/issue/KT-24853) Forbid KSuspendFunctionN and SuspendFunctionN to be used as supertypes
- [`KT-24866`](https://youtrack.jetbrains.com/issue/KT-24866) Review support of all operators for suspend function and forbid all unsupported
- [`KT-25461`](https://youtrack.jetbrains.com/issue/KT-25461) Mangle names of functions that have top-level inline class types in their signatures to allow non-trivial non-public constructors
- [`KT-25855`](https://youtrack.jetbrains.com/issue/KT-25855) Load Java declarations which reference kotlin.jvm.functions.FunctionN as Deprecated with level ERROR
- [`KT-26071`](https://youtrack.jetbrains.com/issue/KT-26071) Postpone conversions from signed constant literals to unsigned ones
- [`KT-26141`](https://youtrack.jetbrains.com/issue/KT-26141) actual typealias for expect sealed class results in error "This type is sealed, so it can be inherited by only its own nested classes or objects"
- [`KT-26200`](https://youtrack.jetbrains.com/issue/KT-26200) Forbid suspend functions annotated with @kotlin.test.Test
- [`KT-26219`](https://youtrack.jetbrains.com/issue/KT-26219) Result of unsigned predecrement/preincrement is not boxed as expected
- [`KT-26223`](https://youtrack.jetbrains.com/issue/KT-26223) Inline lambda arguments of inline class types are passed incorrectly
- [`KT-26291`](https://youtrack.jetbrains.com/issue/KT-26291) Boxed/primitive types clash when overriding Kotlin from Java with common generic supertype with inline class type argument
- [`KT-26403`](https://youtrack.jetbrains.com/issue/KT-26403) Add `-impl` suffix to `box`/`unbox` methods and make them synthetic
- [`KT-26404`](https://youtrack.jetbrains.com/issue/KT-26404) Mangling: setters for properties of inline class types
- [`KT-26409`](https://youtrack.jetbrains.com/issue/KT-26409) implies in CallsInPlace effect isn't supported
- [`KT-26437`](https://youtrack.jetbrains.com/issue/KT-26437) Generate constructors containing inline classes as parameter types as private with synthetic accessors
- [`KT-26449`](https://youtrack.jetbrains.com/issue/KT-26449) Prohibit equals-like and hashCode-like declarations inside inline classes
- [`KT-26451`](https://youtrack.jetbrains.com/issue/KT-26451) Generate static methods with equals/hashCode implementations
- [`KT-26452`](https://youtrack.jetbrains.com/issue/KT-26452) Get rid of $Erased nested class in ABI of inline classes
- [`KT-26453`](https://youtrack.jetbrains.com/issue/KT-26453) Generate all static methods in inline classes with “-impl” suffix
- [`KT-26454`](https://youtrack.jetbrains.com/issue/KT-26454) Prohibit @JvmName on functions that are assumed to be mangled
- [`KT-26468`](https://youtrack.jetbrains.com/issue/KT-26468) Inline class ABI: Constructor invocation is not represented in bytecode
- [`KT-26480`](https://youtrack.jetbrains.com/issue/KT-26480) Report error from compiler when suspension point is located between corresponding MONITORENTER/MONITOREXIT
- [`KT-26538`](https://youtrack.jetbrains.com/issue/KT-26538) Prepare kotlin.Result to publication in 1.3
- [`KT-26558`](https://youtrack.jetbrains.com/issue/KT-26558) Inline Classes: IllegalStateException when invoking secondary constructor for a primitive underlying type
- [`KT-26570`](https://youtrack.jetbrains.com/issue/KT-26570) Inline classes ABI
- [`KT-26573`](https://youtrack.jetbrains.com/issue/KT-26573) Reserve box, unbox, equals and hashCode methods inside inline class for future releases
- [`KT-26575`](https://youtrack.jetbrains.com/issue/KT-26575) Reserve bodies of secondary constructors for inline classes
- [`KT-26576`](https://youtrack.jetbrains.com/issue/KT-26576) Generate stubs for box/unbox/equals/hashCode inside inline classes
- [`KT-26580`](https://youtrack.jetbrains.com/issue/KT-26580) Add version to kotlin.coroutines.jvm.internal.DebugMetadata
- [`KT-26659`](https://youtrack.jetbrains.com/issue/KT-26659) Prohibit using kotlin.Result as a return type and with special operators
- [`KT-26687`](https://youtrack.jetbrains.com/issue/KT-26687) Stdlib contracts have no effect in common code
- [`KT-26707`](https://youtrack.jetbrains.com/issue/KT-26707) companion val of primitive type is not treated as compile time constant
- [`KT-26720`](https://youtrack.jetbrains.com/issue/KT-26720) Write language version requirement on inline classes and on declarations that use inline classes
- [`KT-26859`](https://youtrack.jetbrains.com/issue/KT-26859) Inline class misses unboxing when using indexer into an ArrayList
- [`KT-26936`](https://youtrack.jetbrains.com/issue/KT-26936) Report warning instead of error on usages of Experimental/UseExperimental
- [`KT-26958`](https://youtrack.jetbrains.com/issue/KT-26958) Introduce builder-inference with an explicit opt-in for it

### IDE

#### New Features

- [`KT-26525`](https://youtrack.jetbrains.com/issue/KT-26525) "Move Element Right/Left": Support type parameters in `where` clause (multiple type constraints)

#### Fixes

- [`KT-22491`](https://youtrack.jetbrains.com/issue/KT-22491) MPP new project/new module templates are not convenient
- [`KT-26428`](https://youtrack.jetbrains.com/issue/KT-26428) Kotlin Migration in AS32 / AS33 fails to complete after "Indexing paused due to batch update" event
- [`KT-26484`](https://youtrack.jetbrains.com/issue/KT-26484) Do not show `-Xmulti-platform` option in facets for common modules of multiplatform projects with the new model
- [`KT-26584`](https://youtrack.jetbrains.com/issue/KT-26584) @Language prefix and suffix are ignored for function arguments
- [`KT-26679`](https://youtrack.jetbrains.com/issue/KT-26679) Coroutine migrator should rename buildSequence/buildIterator to their new names
- [`KT-26732`](https://youtrack.jetbrains.com/issue/KT-26732) Kotlin language version from IDEA settings is not taken into account when working with Java code
- [`KT-26770`](https://youtrack.jetbrains.com/issue/KT-26770) Android module in a multiplatform project isn't recognised as a multiplatform module
- [`KT-26794`](https://youtrack.jetbrains.com/issue/KT-26794) Bad version detection during migration in Android Studio 3.2
- [`KT-26823`](https://youtrack.jetbrains.com/issue/KT-26823) Fix deadlock in databinding with AndroidX which led to Android Studio hanging
- [`KT-26827`](https://youtrack.jetbrains.com/issue/KT-26827) ISE “Error type encountered: [ERROR : UInt] (UnresolvedType)” for data inline class wrapped unsigned type
- [`KT-26829`](https://youtrack.jetbrains.com/issue/KT-26829) ISE “Error type encountered: [ERROR : UInt] (UnresolvedType)” for using as a field inline class wrapped unsigned type
- [`KT-26843`](https://youtrack.jetbrains.com/issue/KT-26843) `LazyLightClassMemberMatchingError$NoMatch: Couldn't match ClsMethodImpl:getX MemberIndex(index=1) (with 0 parameters)` on inline class overriding inherited interface method defined in different files
- [`KT-26895`](https://youtrack.jetbrains.com/issue/KT-26895) Exception while building light class for @Serializable annotated class

### IDE. Android

- [`KT-26169`](https://youtrack.jetbrains.com/issue/KT-26169) Android extensions are not recognised by IDE in multiplatform projects
- [`KT-26813`](https://youtrack.jetbrains.com/issue/KT-26813) Multiplatform projects without Android target are not imported properly into Android Studio

### IDE. Code Style, Formatting

- [`KT-22322`](https://youtrack.jetbrains.com/issue/KT-22322) Incorrect indent after pressing Enter after annotation entry
- [`KT-26377`](https://youtrack.jetbrains.com/issue/KT-26377) Formatter does not add blank line between annotation and type alias (or secondary constructor)

### IDE. Decompiler

- [`KT-25853`](https://youtrack.jetbrains.com/issue/KT-25853) IDEA hangs when Kotlin bytecode tool window open while editing a class with secondary constructor

### IDE. Gradle

- [`KT-26634`](https://youtrack.jetbrains.com/issue/KT-26634) Do not generate module for metadataMain compilation on new MPP import
- [`KT-26675`](https://youtrack.jetbrains.com/issue/KT-26675) Gradle: Dependency on multiple files gets duplicated on import

### IDE. Inspections and Intentions

#### New Features

- [`KT-17687`](https://youtrack.jetbrains.com/issue/KT-17687) Quickfix for "Interface doesn't have constructors" to convert to anonymous object
- [`KT-24728`](https://youtrack.jetbrains.com/issue/KT-24728) Add quickfix to remove single explicit & unused lambda parameter
- [`KT-25533`](https://youtrack.jetbrains.com/issue/KT-25533) An intention to create `actual` implementations for `expect` members annotated with @OptionalExpectation
- [`KT-25621`](https://youtrack.jetbrains.com/issue/KT-25621) Inspections for functions returning SuccessOrFailure
- [`KT-25969`](https://youtrack.jetbrains.com/issue/KT-25969) Add an inspection for 'flatMap { it }'
- [`KT-26230`](https://youtrack.jetbrains.com/issue/KT-26230) Inspection: replace safe cast (as?) with `if` (instance check + early return)

#### Fixes

- [`KT-13343`](https://youtrack.jetbrains.com/issue/KT-13343) Remove explicit type specification breaks code if initializer omits generics
- [`KT-19586`](https://youtrack.jetbrains.com/issue/KT-19586) Create actual implementation does nothing when platform module has no source directories.
- [`KT-22361`](https://youtrack.jetbrains.com/issue/KT-22361) Multiplatform: "Generate equals() and hashCode()" intention generates JVM specific code for arrays in common module
- [`KT-22552`](https://youtrack.jetbrains.com/issue/KT-22552) SimplifiableCallChain should keep formatting and comments
- [`KT-24129`](https://youtrack.jetbrains.com/issue/KT-24129) Multiplatform quick fix add implementation suggests generated source location
- [`KT-24405`](https://youtrack.jetbrains.com/issue/KT-24405) False "redundant overriding method" for abstract / default interface method combination
- [`KT-24978`](https://youtrack.jetbrains.com/issue/KT-24978) Do not highlight foldable if-then for is checks
- [`KT-25228`](https://youtrack.jetbrains.com/issue/KT-25228) "Create function" from a protected inline method should not produce a private method
- [`KT-25525`](https://youtrack.jetbrains.com/issue/KT-25525) `@Experimental`-related quick fixes are not suggested for usages in top-level property
- [`KT-25526`](https://youtrack.jetbrains.com/issue/KT-25526) `@Experimental`-related quick fixes are not suggested for usages in type alias
- [`KT-25548`](https://youtrack.jetbrains.com/issue/KT-25548) `@Experimental` API usage: "Add annotation" quick fix incorrectly modifies primary constructor
- [`KT-25609`](https://youtrack.jetbrains.com/issue/KT-25609) "Unused symbol" inspection reports annotation used only in `-Xexperimental`/`-Xuse-experimental` settings
- [`KT-25711`](https://youtrack.jetbrains.com/issue/KT-25711) "Deferred result is never used" inspection: remove `experimental` package (or whole FQN) from description
- [`KT-25712`](https://youtrack.jetbrains.com/issue/KT-25712) "Redundant 'async' call" inspection quick fix action label looks too long
- [`KT-25883`](https://youtrack.jetbrains.com/issue/KT-25883) False "redundant override" reported on boxed parameters
- [`KT-25886`](https://youtrack.jetbrains.com/issue/KT-25886) False positive "Replace 'if' with elvis operator" for nullable type
- [`KT-25968`](https://youtrack.jetbrains.com/issue/KT-25968) False positive "Remove redundant backticks" with keyword `yield`
- [`KT-26009`](https://youtrack.jetbrains.com/issue/KT-26009) "Convert to 'also'" intention adds an extra `it` expression
- [`KT-26015`](https://youtrack.jetbrains.com/issue/KT-26015) Intention to move property to constructor adds @field: qualifier to annotations
- [`KT-26179`](https://youtrack.jetbrains.com/issue/KT-26179) False negative "Boolean expression that can be simplified" for `!true`
- [`KT-26181`](https://youtrack.jetbrains.com/issue/KT-26181) Inspection for unused Deferred result: report for all functions by default
- [`KT-26185`](https://youtrack.jetbrains.com/issue/KT-26185) False positive "redundant semicolon" with if-else
- [`KT-26187`](https://youtrack.jetbrains.com/issue/KT-26187) "Cascade if can be replaced with when" loses lambda curly braces
- [`KT-26289`](https://youtrack.jetbrains.com/issue/KT-26289) Redundant let with call expression: don't report for long call chains
- [`KT-26306`](https://youtrack.jetbrains.com/issue/KT-26306) "Add annotation target" quick fix adds EXPRESSION annotation, but not SOURCE retention
- [`KT-26343`](https://youtrack.jetbrains.com/issue/KT-26343) "Replace 'if' expression with elvis expression" produces wrong code in extension function with not null type parameter
- [`KT-26353`](https://youtrack.jetbrains.com/issue/KT-26353) "Make variable immutable" is a bad name for a quickfix that changes 'var' to 'val'
- [`KT-26472`](https://youtrack.jetbrains.com/issue/KT-26472) "Maven dependency is incompatible with Kotlin 1.3+ and should be updated" inspection is not included into Kotlin Migration
- [`KT-26492`](https://youtrack.jetbrains.com/issue/KT-26492) "Make private" on annotated annotation produces nasty new line
- [`KT-26599`](https://youtrack.jetbrains.com/issue/KT-26599) "Foldable if-then" inspection marks if statements that cannot be folded using ?. operator
- [`KT-26674`](https://youtrack.jetbrains.com/issue/KT-26674) Move lambda out of parentheses is not proposed for suspend lambda
- [`KT-26676`](https://youtrack.jetbrains.com/issue/KT-26676) ReplaceWith always puts suspend lambda in parentheses
- [`KT-26810`](https://youtrack.jetbrains.com/issue/KT-26810) "Incompatible kotlinx.coroutines dependency" inspections report library built for 1.3-RC with 1.3-RC plugin

### IDE. Multiplatform

- [`KT-20368`](https://youtrack.jetbrains.com/issue/KT-20368) Unresolved reference to declarations from kotlin.reflect in common code in multi-platform project: no "Add import" quick-fix
- [`KT-26356`](https://youtrack.jetbrains.com/issue/KT-26356) New MPP doesn't work with Android projects
- [`KT-26369`](https://youtrack.jetbrains.com/issue/KT-26369) Library dependencies don't transitively pass for custom source sets at new MPP import to IDE
- [`KT-26414`](https://youtrack.jetbrains.com/issue/KT-26414) Remove old multiplatform modules templates from New Project/New Module wizard
- [`KT-26517`](https://youtrack.jetbrains.com/issue/KT-26517) `Create actual ...` generates default constructor parameter values
- [`KT-26585`](https://youtrack.jetbrains.com/issue/KT-26585) Stdlib annotations annotated with @OptionalExpectation are reported with false positive error in common module

### IDE. Navigation

- [`KT-18490`](https://youtrack.jetbrains.com/issue/KT-18490) Multiplatform project: Set text cursor correctly to file with header on navigation from impl side

### IDE. Refactorings

- [`KT-17124`](https://youtrack.jetbrains.com/issue/KT-17124) Change signature refactoring dialog unescapes escaped parameter names
- [`KT-25454`](https://youtrack.jetbrains.com/issue/KT-25454) Extract function: make default visibility private
- [`KT-26533`](https://youtrack.jetbrains.com/issue/KT-26533) Move refactoring on interface shows it as "abstract interface" in the dialog

### IDE. Tests Support

- [`KT-26793`](https://youtrack.jetbrains.com/issue/KT-26793) Left gutter run icon does not appear for JS tests in old MPP

### IDE. Ultimate

- [`KT-19309`](https://youtrack.jetbrains.com/issue/KT-19309) Spring JPA Repository IntelliJ tooling with Kotlin

### JavaScript

- [`KT-26466`](https://youtrack.jetbrains.com/issue/KT-26466) Uncaught ReferenceError: println is not defined
- [`KT-26572`](https://youtrack.jetbrains.com/issue/KT-26572) Support suspend fun main in JS
- [`KT-26628`](https://youtrack.jetbrains.com/issue/KT-26628) Support main entry-point without arguments in JS

### Libraries

#### New Features

- [`KT-25039`](https://youtrack.jetbrains.com/issue/KT-25039) Any?.hashCode() extension
- [`KT-26359`](https://youtrack.jetbrains.com/issue/KT-26359) Use JvmName on parameters of kotlin.Metadata to improve the public API
- [`KT-26398`](https://youtrack.jetbrains.com/issue/KT-26398) Coroutine context shall perform structural equality comparison on keys
- [`KT-26598`](https://youtrack.jetbrains.com/issue/KT-26598) Introduce ConcurrentModificationException actual typealias in the JVM library

#### Performance Improvements

- [`KT-18483`](https://youtrack.jetbrains.com/issue/KT-18483) Check to contains value in range can be dramatically slow

#### Fixes

- [`KT-17716`](https://youtrack.jetbrains.com/issue/KT-17716) JS: Some kotlin.js.Math methods break Integer type safety
- [`KT-21703`](https://youtrack.jetbrains.com/issue/KT-21703) Review deprecations in stdlib for 1.3
- [`KT-21784`](https://youtrack.jetbrains.com/issue/KT-21784) Deprecate and remove org.jetbrains.annotations from kotlin-stdlib in compiler distribution
- [`KT-22423`](https://youtrack.jetbrains.com/issue/KT-22423) Deprecate mixed integer/floating point overloads of ClosedRange.contains operator
- [`KT-25217`](https://youtrack.jetbrains.com/issue/KT-25217) Raise deprecation level for mod operators to ERROR
- [`KT-25935`](https://youtrack.jetbrains.com/issue/KT-25935) Move kotlin.reflect interfaces to kotlin-stdlib-common
- [`KT-26358`](https://youtrack.jetbrains.com/issue/KT-26358) Rebuild anko for new coroutines API
- [`KT-26388`](https://youtrack.jetbrains.com/issue/KT-26388) Specialize contentDeepEquals/HashCode/ToString for arrays of unsigned types
- [`KT-26523`](https://youtrack.jetbrains.com/issue/KT-26523) EXACTLY_ONCE contract in runCatching doesn't consider lambda exceptions are caught
- [`KT-26591`](https://youtrack.jetbrains.com/issue/KT-26591) Add primitive boxing functions to stdlib
- [`KT-26594`](https://youtrack.jetbrains.com/issue/KT-26594) Change signed-to-unsigned widening conversions to sign extending
- [`KT-26595`](https://youtrack.jetbrains.com/issue/KT-26595) Deprecate common 'synchronized(Any) { }' function
- [`KT-26596`](https://youtrack.jetbrains.com/issue/KT-26596) Rename Random.nextInt/Long/Double parameters
- [`KT-26678`](https://youtrack.jetbrains.com/issue/KT-26678) Rename buildSequence/buildIterator to sequence/iterator
- [`KT-26929`](https://youtrack.jetbrains.com/issue/KT-26929) Kotlin Reflect and Proguard: can’t find referenced class  kotlin.annotations.jvm.ReadOnly/Mutable

### Reflection

- [`KT-25499`](https://youtrack.jetbrains.com/issue/KT-25499) Use-site targeted annotations on property accessors are not visible in Kotlin reflection if there's also an annotation on the property
- [`KT-25500`](https://youtrack.jetbrains.com/issue/KT-25500) Annotations on parameter setter are not visible through reflection
- [`KT-25664`](https://youtrack.jetbrains.com/issue/KT-25664) Inline classes don't work properly with reflection
- [`KT-26293`](https://youtrack.jetbrains.com/issue/KT-26293) Incorrect javaType for suspend function's returnType

### Tools. CLI

- [`KT-24613`](https://youtrack.jetbrains.com/issue/KT-24613) Support argfiles in kotlinc with "@argfile"
- [`KT-25862`](https://youtrack.jetbrains.com/issue/KT-25862) Release '-Xprogressive' as '-progressive'
- [`KT-26122`](https://youtrack.jetbrains.com/issue/KT-26122) Support single quotation marks in argfiles

### Tools. Gradle

- [`KT-25680`](https://youtrack.jetbrains.com/issue/KT-25680) Gradle plugin: version with non-experimental coroutines and no related settings still runs compiler with `-Xcoroutines` option
- [`KT-26253`](https://youtrack.jetbrains.com/issue/KT-26253) New MPP model shouldn't generate `metadataMain` and `metadataTest` source sets on IDE import
- [`KT-26383`](https://youtrack.jetbrains.com/issue/KT-26383) Common modules dependencies are not mapped at import of a composite multiplatform project with project dependencies into IDE
- [`KT-26515`](https://youtrack.jetbrains.com/issue/KT-26515) Support -Xcommon-sources in new MPP
- [`KT-26641`](https://youtrack.jetbrains.com/issue/KT-26641) In new MPP, Gradle task for building classes has a name unexpected for GradleProjectTaskRunner
- [`KT-26784`](https://youtrack.jetbrains.com/issue/KT-26784) Support non-kts scripts discovery and compilation in gradle

### Tools. JPS

- [`KT-26072`](https://youtrack.jetbrains.com/issue/KT-26072) MPP compilation issue
- [`KT-26254`](https://youtrack.jetbrains.com/issue/KT-26254) JPS build for new MPP model doesn't work: kotlinFacet?.settings?.sourceSetNames is empty

### Tools. kapt

- [`KT-25374`](https://youtrack.jetbrains.com/issue/KT-25374) Kapt: Build fails with Unresolved local class
- [`KT-26540`](https://youtrack.jetbrains.com/issue/KT-26540) kapt3 fails to handle to-be-generated superclasses

## 1.3-M2

### Compiler

#### New Features

- [`KT-6592`](https://youtrack.jetbrains.com/issue/KT-6592) Support local variable initialization in lambda arguments to some functions
- [`KT-19323`](https://youtrack.jetbrains.com/issue/KT-19323) Allow generic type parameter to have mixed constraints for @InlineOnly functions
- [`KT-24857`](https://youtrack.jetbrains.com/issue/KT-24857) Support compatibility wrappers for coroutines in compiler
- [`KT-25320`](https://youtrack.jetbrains.com/issue/KT-25320) Support limited conversions for constants to simplify interop for Kotlin/Native
- [`KT-25372`](https://youtrack.jetbrains.com/issue/KT-25372) Support JvmName on annotation property getters
- [`KT-25495`](https://youtrack.jetbrains.com/issue/KT-25495) Release contract DSL as experimental
- [`KT-25557`](https://youtrack.jetbrains.com/issue/KT-25557) Metadata that maps coroutine label to the file name and line number
- [`KT-25559`](https://youtrack.jetbrains.com/issue/KT-25559) Metadata that maps coroutine spilled state to local variables
- [`KT-25655`](https://youtrack.jetbrains.com/issue/KT-25655) Safe or non-null calls required on x following check(x != null)
- [`KT-25972`](https://youtrack.jetbrains.com/issue/KT-25972) Support reading binary metadata of the next major release

#### Performance Improvements

- [`KT-24657`](https://youtrack.jetbrains.com/issue/KT-24657) Compiler performance issues with big files
- [`KT-26243`](https://youtrack.jetbrains.com/issue/KT-26243) Avoid redundant "specialized" method for suspend lambdas.

#### Fixes

- [`KT-19628`](https://youtrack.jetbrains.com/issue/KT-19628) Unresolved reference not reported on data class constructor `@get` annotation
- [`KT-20830`](https://youtrack.jetbrains.com/issue/KT-20830) Nulls can propagate through "enhanced nullability" types on module boundaries
- [`KT-21240`](https://youtrack.jetbrains.com/issue/KT-21240) Remove suspendCoroutineOrReturn intrinsic from compiler
- [`KT-22379`](https://youtrack.jetbrains.com/issue/KT-22379) Condition of while-loop with break can produce unsound smartcast
- [`KT-23438`](https://youtrack.jetbrains.com/issue/KT-23438) Back-end (JVM) Internal error: Failed to generate function suspendCoroutineOrReturn
- [`KT-23819`](https://youtrack.jetbrains.com/issue/KT-23819) Inline classes: mapping of fully generic classes 
- [`KT-23857`](https://youtrack.jetbrains.com/issue/KT-23857) Annotation with target TYPE is not applicable to TYPE_USE in Java sources
- [`KT-24717`](https://youtrack.jetbrains.com/issue/KT-24717) Allow number literals to be used as unsigned ones with unsigned expected typed
- [`KT-24860`](https://youtrack.jetbrains.com/issue/KT-24860) Forbid usage function expression as suspend function expression
- [`KT-24872`](https://youtrack.jetbrains.com/issue/KT-24872) Do not generate user-defined methods inside box class of inline class
- [`KT-24873`](https://youtrack.jetbrains.com/issue/KT-24873) Generate equals/hashCode/toString methods for inline classes same as for data classes
- [`KT-25246`](https://youtrack.jetbrains.com/issue/KT-25246) Incorrect bytecode generated for secondary constructor in inline class + primitive array
- [`KT-25278`](https://youtrack.jetbrains.com/issue/KT-25278) No smart cast for "returns() implies" contract when default argument is omitted
- [`KT-25287`](https://youtrack.jetbrains.com/issue/KT-25287) Getter-targeted annotations on annotation constructor parameters are lost
- [`KT-25293`](https://youtrack.jetbrains.com/issue/KT-25293) “Couldn't transform method node” error on compiling inline class with hashCode() method call when underlying value type is basic (number, char, boolean)
- [`KT-25299`](https://youtrack.jetbrains.com/issue/KT-25299) NoSuchMethodError Foo$Erased.hashCode(Ljava/lang/Object;) for hashCode(), toString() and equals() methods in inline classes
- [`KT-25328`](https://youtrack.jetbrains.com/issue/KT-25328) “Couldn't transform method node” error on compiling inline class which is wrapping Unit type
- [`KT-25330`](https://youtrack.jetbrains.com/issue/KT-25330) CCE “[Ljava.lang.Integer; cannot be cast to Foo” for inline class which is wrapping Array<T>
- [`KT-25521`](https://youtrack.jetbrains.com/issue/KT-25521) Coroutines state machine in Kotlin 1.3 should not have getLabel/setLabel
- [`KT-25558`](https://youtrack.jetbrains.com/issue/KT-25558) Stabilize field naming and mangling for suspending lambda classes
- [`KT-25580`](https://youtrack.jetbrains.com/issue/KT-25580) No warning about experimental API when unsigned types are inferred
- [`KT-25599`](https://youtrack.jetbrains.com/issue/KT-25599) “Exception during code generation” on compiling code with public constructor of unsigned numbers array
- [`KT-25614`](https://youtrack.jetbrains.com/issue/KT-25614) Support secondary constructors for inline classes
- [`KT-25683`](https://youtrack.jetbrains.com/issue/KT-25683) Compiler support for calling experimental suspend functions and function with experimental suspend function type as parameter
- [`KT-25688`](https://youtrack.jetbrains.com/issue/KT-25688) Add $continuation to LVT
- [`KT-25750`](https://youtrack.jetbrains.com/issue/KT-25750) CCE “Foo cannot be cast to java.lang.String” with inline class
- [`KT-25760`](https://youtrack.jetbrains.com/issue/KT-25760) Inline data class throws java.lang.VerifyError when trying toString() it
- [`KT-25794`](https://youtrack.jetbrains.com/issue/KT-25794) Incorrect code generated for accessing elements of Array<C> where C is inline class
- [`KT-25824`](https://youtrack.jetbrains.com/issue/KT-25824) Move SuspendFunctionN fictitious interfaces to kotlin.coroutines package
- [`KT-25825`](https://youtrack.jetbrains.com/issue/KT-25825) Allow to distinguish instances of function types from instances of suspend function types via kotlin.coroutines.jvm.internal.SuspendFunction marker interface
- [`KT-25912`](https://youtrack.jetbrains.com/issue/KT-25912) Calling groupingBy+reduce from suspend function causes IncompatibleClassChangeError
- [`KT-25914`](https://youtrack.jetbrains.com/issue/KT-25914) '==' for inline class with custom 'equals' uses underlying primitive type comparison instead
- [`KT-25973`](https://youtrack.jetbrains.com/issue/KT-25973) Report metadata version mismatch upon discovering a .kotlin_module file in the dependencies with an incompatible metadata version
- [`KT-25981`](https://youtrack.jetbrains.com/issue/KT-25981) Incorrect code generated for unboxed to boxed inline class equality
- [`KT-25983`](https://youtrack.jetbrains.com/issue/KT-25983) Inline class equality uses IEEE 754 instead of total order
- [`KT-26029`](https://youtrack.jetbrains.com/issue/KT-26029) Prohibit delegated properties inside inline classes
- [`KT-26030`](https://youtrack.jetbrains.com/issue/KT-26030) Prohibit implementation by delegation for inline classes
- [`KT-26052`](https://youtrack.jetbrains.com/issue/KT-26052) Inline Classes: IllegalArgumentException when underlying type is non-null but declared type is nullable
- [`KT-26101`](https://youtrack.jetbrains.com/issue/KT-26101) Prohibit inline classes with recursive underlying types
- [`KT-26103`](https://youtrack.jetbrains.com/issue/KT-26103) Inline class with type parameters is inconsistently mapped to JVM type if underlying type is a primitive
- [`KT-26120`](https://youtrack.jetbrains.com/issue/KT-26120) Inline Classes: Class inheritance is allowed but fails when referencing a superclass member

### IDE

- [`KT-25316`](https://youtrack.jetbrains.com/issue/KT-25316) PARTIAL resolve mode doesn't work when effects system is enabled
- [`KT-25611`](https://youtrack.jetbrains.com/issue/KT-25611) With Language / API version = "Latest stable" installing 1.3-M1 plugin upgrades actual values to 1.3
- [`KT-25681`](https://youtrack.jetbrains.com/issue/KT-25681) Remove "Coroutines (experimental)" settings from IDE and do not pass `-Xcoroutines` to JPS compiler (since 1.3)
- [`KT-25714`](https://youtrack.jetbrains.com/issue/KT-25714) Kotlin plugin updater suggests plugins incompatible with current Studio build platform
- [`KT-26239`](https://youtrack.jetbrains.com/issue/KT-26239) New MPP template: add `kotlin-test` libraries to the modules dependencies by default
- [`KT-26290`](https://youtrack.jetbrains.com/issue/KT-26290) Gradle Import: When all modules have the same language/API version use it for project-level settings as well

### IDE. Completion

- [`KT-25275`](https://youtrack.jetbrains.com/issue/KT-25275) Code completion does not take into account smart casts gotten from "returns implies" contract

### IDE. Inspections and Intentions

- [`KT-22330`](https://youtrack.jetbrains.com/issue/KT-22330) "Add remaining branch" quickfix doesn't properly import enum class
- [`KT-22354`](https://youtrack.jetbrains.com/issue/KT-22354) "Add remaining branches with import" quick fix causes KNPE at ImportAllMembersIntention$Companion.importReceiverMembers()
- [`KT-26158`](https://youtrack.jetbrains.com/issue/KT-26158) KNPE in "Create local variable"

### IDE. Multiplatform

- [`KT-26217`](https://youtrack.jetbrains.com/issue/KT-26217) "org.jetbrains.kotlin.resolve.MultiTargetPlatform$Common cannot be cast to org.jetbrains.kotlin.resolve.MultiTargetPlatform$Specific" on splitted actuals

### IDE. Script

- [`KT-25814`](https://youtrack.jetbrains.com/issue/KT-25814) IDE scripting console -> kotlin (JSR-223) - compilation errors - unresolved IDEA classes
- [`KT-25822`](https://youtrack.jetbrains.com/issue/KT-25822) jvmTarget from the script compiler options is ignored in the IDE

### JavaScript

- [`KT-22053`](https://youtrack.jetbrains.com/issue/KT-22053) JS: Secondary constructor of Throwable inheritor doesn't call to primary one
- [`KT-25014`](https://youtrack.jetbrains.com/issue/KT-25014) Support 'when' with subject variable in JS back-end
- [`KT-26064`](https://youtrack.jetbrains.com/issue/KT-26064) JS inliner calls wrong constructor in incremental build
- [`KT-26117`](https://youtrack.jetbrains.com/issue/KT-26117) JS runtime error: ArrayList_init instead of ArrayList_init_0
- [`KT-26138`](https://youtrack.jetbrains.com/issue/KT-26138) JS: prohibit external inline class
- [`KT-26171`](https://youtrack.jetbrains.com/issue/KT-26171) Prohibit inline classes as parameter and return type of external declaration

### Language design

- [`KT-7566`](https://youtrack.jetbrains.com/issue/KT-7566) Annotate kotlin.test.Test.assertNotNull() so that safe dereference isn't required after it
- [`KT-14397`](https://youtrack.jetbrains.com/issue/KT-14397) Make "smart cast" to non-null string working after isNullOrEmpty() check.
- [`KT-19532`](https://youtrack.jetbrains.com/issue/KT-19532) Evaluation order for constructor call
- [`KT-22274`](https://youtrack.jetbrains.com/issue/KT-22274) Restrict statement labels applicability

### Libraries

#### New Features

- [`KT-13814`](https://youtrack.jetbrains.com/issue/KT-13814) keys.associateWith { k -> v } function
- [`KT-15539`](https://youtrack.jetbrains.com/issue/KT-15539) Random Convenience Method in Ranges (LongRange, IntRange, etc)
- [`KT-15695`](https://youtrack.jetbrains.com/issue/KT-15695) String/Collection/Map/Array/Sequence.ifEmpty { null }
- [`KT-18986`](https://youtrack.jetbrains.com/issue/KT-18986) Debug-friendly toString implementation for CoroutineImpl
- [`KT-25570`](https://youtrack.jetbrains.com/issue/KT-25570) Random extensions to generate unsigned random numbers
- [`KT-25659`](https://youtrack.jetbrains.com/issue/KT-25659) Consider adding SuccessOrFailure.getOrDefault function
- [`KT-25874`](https://youtrack.jetbrains.com/issue/KT-25874) Support array copying between two existing arrays
- [`KT-25875`](https://youtrack.jetbrains.com/issue/KT-25875) Need more access to raw underlying array in unsigned arrays
- [`KT-25962`](https://youtrack.jetbrains.com/issue/KT-25962) Add contract for 'synchronized'
- [`KT-26339`](https://youtrack.jetbrains.com/issue/KT-26339) Introduce CoroutineStackFrame interface for coroutine stack reconstruction in debugger

#### Fixes

- [`KT-16097`](https://youtrack.jetbrains.com/issue/KT-16097) Index overflow when sequence has more than Int.MAX_VALUE elements
- [`KT-17176`](https://youtrack.jetbrains.com/issue/KT-17176) Long/Int progressions with Long.MIN_VALUE and Int.MIN_VALUE step are weird
- [`KT-19305`](https://youtrack.jetbrains.com/issue/KT-19305) IOStreams#readBytes is badly named
- [`KT-19489`](https://youtrack.jetbrains.com/issue/KT-19489) Array.copyOfRange returns value violating declared type when bounds are out of range
- [`KT-21049`](https://youtrack.jetbrains.com/issue/KT-21049) Different behavior in split by regex at JVM and JS
- [`KT-23799`](https://youtrack.jetbrains.com/issue/KT-23799) Discontinue deprecated artifacts distribution: kotlin-runtime, kotlin-jslib, kotlin-stdlib-jre7/8
- [`KT-25274`](https://youtrack.jetbrains.com/issue/KT-25274) contract() function has internal visibility
- [`KT-25303`](https://youtrack.jetbrains.com/issue/KT-25303) checkNotNull(T?) has no contract in contrast to checkNotNull(T?, () -> Any)
- [`KT-25771`](https://youtrack.jetbrains.com/issue/KT-25771) SuccessOrFailure.isFailure always returns false when boxed
- [`KT-25961`](https://youtrack.jetbrains.com/issue/KT-25961) Provide a way to create default-initialized 'U*Array'
- [`KT-26161`](https://youtrack.jetbrains.com/issue/KT-26161) String-to-number and number-to-string conversions for unsigned integers

### Reflection

- [`KT-14657`](https://youtrack.jetbrains.com/issue/KT-14657) Reflection: Provide ability to enumerate all cases of a sealed class
- [`KT-16795`](https://youtrack.jetbrains.com/issue/KT-16795) KType does not implement KAnnotatedElement
- [`KT-21972`](https://youtrack.jetbrains.com/issue/KT-21972) Reflection: Implement suspend functions `KCallable.callSuspend`,  `callSuspendBy`, and `isSuspend`

### Tools. CLI

- [`KT-25823`](https://youtrack.jetbrains.com/issue/KT-25823) Report a warning or error if an old language version or API version is used

### Tools. Gradle

- [`KT-26301`](https://youtrack.jetbrains.com/issue/KT-26301) In new MPP, a project with no `java` or `java-base` plugin applied cannot depend on a published MPP lib or run tests

### Tools. Scripts

- [`KT-26142`](https://youtrack.jetbrains.com/issue/KT-26142) update maven-central remote repository url


## 1.3-M1 IDE plugins update

### IDE

- Kotlin plugin for Android Studio 3.3 Canary 4 is ready
- [`KT-25713`](https://youtrack.jetbrains.com/issue/KT-25713) Android Studio on 182 platform: Gradle project re-import fails 
- [`KT-25733`](https://youtrack.jetbrains.com/issue/KT-25733) "Convert Java File to Kotlin File" action was always disabled


## 1.3-M1

### Language design

- [`KEEP-104`](https://github.com/Kotlin/KEEP/issues/104) Inline classes
- [`KEEP-135`](https://github.com/Kotlin/KEEP/issues/135) Unsigned integer types
- [`KEEP-95`](https://github.com/Kotlin/KEEP/issues/95) Experimental API annotations
- [`KT-4895`](https://youtrack.jetbrains.com/issue/KT-4895) Support assignment of "when" subject to a variable
- [`KT-13762`](https://youtrack.jetbrains.com/issue/KT-13762) Prohibit annotations with target 'EXPRESSION' and retention 'BINARY' or 'RUNTIME'
- [`KT-16681`](https://youtrack.jetbrains.com/issue/KT-16681) kotlin allows mutating the field of read-only property
- [`KT-21515`](https://youtrack.jetbrains.com/issue/KT-21515) Restrict visibility of classifiers, nested in companion objects

### Compiler

- [`KT-24848`](https://youtrack.jetbrains.com/issue/KT-24848) Refine loading Java overrides of Kotlin suspend functions
- [`KT-9580`](https://youtrack.jetbrains.com/issue/KT-9580) Report an error if 'setparam' target does not make sense for a parameter declaration
- [`KT-16310`](https://youtrack.jetbrains.com/issue/KT-16310) Nested classes inside enum entries capturing outer members
- [`KT-17981`](https://youtrack.jetbrains.com/issue/KT-17981) Type parameter for catch parameter possible when exception is nested in generic, but fails in runtime
- [`KT-21354`](https://youtrack.jetbrains.com/issue/KT-21354) Inconsistent behavior of 'for-in-range' loop if range is an array variable modified in loop body
- [`KT-25333`](https://youtrack.jetbrains.com/issue/KT-25333) Restrict visibility of Java static members from supertypes of companion object
- [`KT-25623`](https://youtrack.jetbrains.com/issue/KT-25623) Do not load experimental coroutines as non-suspend function with additional Continuation parameter

#### Backend. JVM

- [`KT-6301`](https://youtrack.jetbrains.com/issue/KT-6301) Support JvmStatic annotation on interface companion object members
- [`KT-25508`](https://youtrack.jetbrains.com/issue/KT-25508) Inject probeCoroutineSuspended to coroutines body
- [`KT-18987`](https://youtrack.jetbrains.com/issue/KT-18987) Unroll recursion in CoroutineImpl.resume
- [`KT-11567`](https://youtrack.jetbrains.com/issue/KT-11567) Companion object INSTANCE field more visible than companion object class itself
- [`KT-13764`](https://youtrack.jetbrains.com/issue/KT-13764) Support lambdas and function references for arities bigger than 22
- [`KT-16615`](https://youtrack.jetbrains.com/issue/KT-16615) Do not generate ConstantValue attribute for non-const vals
- [`KT-25193`](https://youtrack.jetbrains.com/issue/KT-25193) Names of parameters from Java interface methods implemented by delegation are lost  
- [`KT-25324`](https://youtrack.jetbrains.com/issue/KT-25324) VerifyError “Bad type on operand stack” on running code with call of array iterator for array of inline classes
- [`KT-25325`](https://youtrack.jetbrains.com/issue/KT-25325) CCE “Foo cannot be cast to java.lang.String” for iterating over the list of inline classes
- [`KT-25626`](https://youtrack.jetbrains.com/issue/KT-25626) Inline class values inside string literals don't use their own toString implementation

#### Backend. JVM. Coroutines

- [`KT-20219`](https://youtrack.jetbrains.com/issue/KT-20219) Inline suspend function can't be used as non-inline function
- [`KT-24863`](https://youtrack.jetbrains.com/issue/KT-24863) Support new Continuation API in JVM BE
- [`KT-24864`](https://youtrack.jetbrains.com/issue/KT-24864) Create new CoroutineImpl and other internal coroutines interfaces

#### Backend. JVM. Inline

- [`KT-25511`](https://youtrack.jetbrains.com/issue/KT-25511) Inline classes fail with cross-inline functions

#### Binary Metadata

- [`KT-24617`](https://youtrack.jetbrains.com/issue/KT-24617) Optional expected annotation is unresolved in a dependent platform module
- [`KT-25120`](https://youtrack.jetbrains.com/issue/KT-25120) RequireKotlin on nested class and its members is not loaded correctly
- [`KT-25273`](https://youtrack.jetbrains.com/issue/KT-25273) java.lang.UnsupportedOperationException from incremental JS compilation
- [`KT-25310`](https://youtrack.jetbrains.com/issue/KT-25310) Write isUnsigned flag into metadata for unsigned types


#### Frontend

- [`KT-15807`](https://youtrack.jetbrains.com/issue/KT-15807) @JvmField is not applicable to interface companion properties
- [`KT-16962`](https://youtrack.jetbrains.com/issue/KT-16962) Annotation classes cannot contain types or static fields because they cannot have a body
- [`KT-23153`](https://youtrack.jetbrains.com/issue/KT-23153) Compiler allows to set non constant value as annotation parameter
- [`KT-23362`](https://youtrack.jetbrains.com/issue/KT-23362) Move coroutines to package kolin.coroutines for 1.3
- [`KT-24861`](https://youtrack.jetbrains.com/issue/KT-24861) Fix loading kotlin.suspend compiled with LV=1.2 when release coroutines package is used
- [`KT-25241`](https://youtrack.jetbrains.com/issue/KT-25241) Kotlin compiler doesn't warn about usage of lambda/reference with more than 22 parameters
- [`KT-25600`](https://youtrack.jetbrains.com/issue/KT-25600) NSEE “Collection is empty” after trying to call default constructor of unsigned number class

#### Frontend. Data-flow analysis

- [`KT-22517`](https://youtrack.jetbrains.com/issue/KT-22517) Deprecate smartcasts for local delegated properties

#### Frontend. Declarations

- [`KT-19618`](https://youtrack.jetbrains.com/issue/KT-19618) Data class `copy()` call with optional parameters leads to broken code when the class implements an interface with `copy()`
- [`KT-23277`](https://youtrack.jetbrains.com/issue/KT-23277) Prohibit local annotation classes
- [`KT-24197`](https://youtrack.jetbrains.com/issue/KT-24197) Make 'mod' operator error in 1.3

#### Frontend. Lexer & Parser

- [`KT-24663`](https://youtrack.jetbrains.com/issue/KT-24663) Add 'UL' suffix to represent number literals of unsigned Long type

#### Frontend. Resolution and Inference

- [`KT-16908`](https://youtrack.jetbrains.com/issue/KT-16908) Support callable references to suspending functions
- [`KT-20588`](https://youtrack.jetbrains.com/issue/KT-20588) Report error on single element assignment to varargs in named form in annotations
- [`KT-20589`](https://youtrack.jetbrains.com/issue/KT-20589) Report error on single element assignment to varargs in named form in functions
- [`KT-24859`](https://youtrack.jetbrains.com/issue/KT-24859) Disallow calls of functions annotated with receiver annotated with @RestrictsSuspension in foreign suspension context

### IDE

- [`KT-25466`](https://youtrack.jetbrains.com/issue/KT-25466) Make coroutines resolve to be independent of language and API versions set in `Kotlin Compiler` settings

#### IDE. Inspections and Intentions

- [`KT-24243`](https://youtrack.jetbrains.com/issue/KT-24243) Support quick fix to enable usages of Experimental/UseExperimental
- [`KT-11154`](https://youtrack.jetbrains.com/issue/KT-11154) Spell checking inspection is not suppressable
- [`KT-25169`](https://youtrack.jetbrains.com/issue/KT-25169) Impossible to suppress UAST/JVM inspections

#### IDE. Libraries

- [`KT-25129`](https://youtrack.jetbrains.com/issue/KT-25129) Idea freezes when Kotlin plugin tries to determine if jar is js lib in jvm module


### Libraries

#### New Features

- [`KEEP-131`](https://github.com/Kotlin/KEEP/issues/131), [`KT-17261`](https://youtrack.jetbrains.com/issue/KT-17261) Add random number generator to stdlib and related collection extension functions
- [`KT-7922`](https://youtrack.jetbrains.com/issue/KT-7922) Companion object for Boolean
- [`KT-8247`](https://youtrack.jetbrains.com/issue/KT-8247) Byte size for primitives
- [`KT-16552`](https://youtrack.jetbrains.com/issue/KT-16552) Add Sequence.orEmpty()
- [`KT-18559`](https://youtrack.jetbrains.com/issue/KT-18559) Make SafeContinuation and context impl classes serializable
- [`KT-18910`](https://youtrack.jetbrains.com/issue/KT-18910) StringBuilder#setLength(0) in non-JVM Kotlin
- [`KT-21763`](https://youtrack.jetbrains.com/issue/KT-21763) Provide Char MIN_VALUE/MAX_VALUE constants
- [`KT-23279`](https://youtrack.jetbrains.com/issue/KT-23279) isNullOrEmpty() for collections, maps, and arrays
- [`KT-23602`](https://youtrack.jetbrains.com/issue/KT-23602) Make kotlin.Metadata public

#### Fixes

- [`KT-23564`](https://youtrack.jetbrains.com/issue/KT-23564) KotlinJS: Math is deprecated yet random is not a global function
- [`KT-24856`](https://youtrack.jetbrains.com/issue/KT-24856) Create compatibility wrappers for migration from 1.2 to 1.3 coroutines
- [`KT-24862`](https://youtrack.jetbrains.com/issue/KT-24862) Create new Continuation API for coroutines 

### Reflection

- [`KT-25541`](https://youtrack.jetbrains.com/issue/KT-25541) Incorrect parameter names in reflection for inner class constructor from Java class compiled with "-parameters"

## 1.2.71

### Compiler

- [`KT-26806`](https://youtrack.jetbrains.com/issue/KT-26806) Defining constants using kotlin.math is broken in 1.2.70

### IDE

- [`KT-26399`](https://youtrack.jetbrains.com/issue/KT-26399) Kotlin Migration: NPE at KotlinMigrationProjectComponent$onImportFinished$1.run()
- [`KT-26794`](https://youtrack.jetbrains.com/issue/KT-26794) Bad version detection during migration in Android Studio 3.2
- [`KT-26823`](https://youtrack.jetbrains.com/issue/KT-26823) Fix deadlock in databinding with AndroidX which led to Android Studio hanging
- [`KT-26889`](https://youtrack.jetbrains.com/issue/KT-26889) Don't show migration dialog if no actual migrations are available
- [`KT-25177`](https://youtrack.jetbrains.com/issue/KT-25177) Report asDynamic on dynamic type as a warning
- [`KT-25454`](https://youtrack.jetbrains.com/issue/KT-25454) Extract function: make default visibility private

### JavaScript

- [`KT-26466`](https://youtrack.jetbrains.com/issue/KT-26466) Uncaught ReferenceError: println is not defined

### Tools. Gradle

- [`KT-26208`](https://youtrack.jetbrains.com/issue/KT-26208) inspectClassesForKotlinIC slows down continuous mode in Gradle

### Libraries

- [`KT-26929`](https://youtrack.jetbrains.com/issue/KT-26929) Kotlin Reflect and Proguard: can’t find referenced class kotlin.annotations.jvm.ReadOnly/Mutable

## 1.2.70

### Compiler

- [`KT-13860`](https://youtrack.jetbrains.com/issue/KT-13860) Avoid creating KtImportDirective PSI elements for default imports in LazyImportScope
- [`KT-22201`](https://youtrack.jetbrains.com/issue/KT-22201) Generate nullability annotations for data class toString and equals methods.
- [`KT-23870`](https://youtrack.jetbrains.com/issue/KT-23870) SAM adapter method returns null-values for "genericParameterTypes"
- [`KT-24597`](https://youtrack.jetbrains.com/issue/KT-24597) IDE doesn't report missing constructor on inheritance of an expected class in common module
- [`KT-25120`](https://youtrack.jetbrains.com/issue/KT-25120) RequireKotlin on nested class and its members is not loaded correctly
- [`KT-25193`](https://youtrack.jetbrains.com/issue/KT-25193) Names of parameters from Java interface methods implemented by delegation are lost  
- [`KT-25405`](https://youtrack.jetbrains.com/issue/KT-25405) Mismatching descriptor type parameters on inner types
- [`KT-25604`](https://youtrack.jetbrains.com/issue/KT-25604) Disable callable references to exprerimental suspend functions
- [`KT-25665`](https://youtrack.jetbrains.com/issue/KT-25665) Add a warning for annotations which target non-existent accessors
- [`KT-25894`](https://youtrack.jetbrains.com/issue/KT-25894) Do not generate body for functions from Any in light class builder mode
- [`KT-20772`](https://youtrack.jetbrains.com/issue/KT-20772) Incorrect smart cast on enum members
- [`KT-24657`](https://youtrack.jetbrains.com/issue/KT-24657) Compiler performance issues with big files
- [`KT-25745`](https://youtrack.jetbrains.com/issue/KT-25745) Do not report warning about annotations on non-existing accessors for JvmStatic properties
- [`KT-25746`](https://youtrack.jetbrains.com/issue/KT-25746) Improve message for warning about annotations that have target to non-existing accessors
- [`KT-25810`](https://youtrack.jetbrains.com/issue/KT-25810) New Inference: Overload resolution ambiguity on method 'provideDelegate(Nothing?, KProperty<*>)' when there's more than one `provideDelegate` operator in scope
- [`KT-25973`](https://youtrack.jetbrains.com/issue/KT-25973) Report metadata version mismatch upon discovering a .kotlin_module file in the dependencies with an incompatible metadata version
- [`KT-22281`](https://youtrack.jetbrains.com/issue/KT-22281) JVM: Incorrect comparison of Double and Float when types are derived from smart-casts
- [`KT-22649`](https://youtrack.jetbrains.com/issue/KT-22649) Compiler: wrong code generated / Couldn't transform method node - using inline extension property inside lambda

### IDE

- [`KT-18301`](https://youtrack.jetbrains.com/issue/KT-18301) kotlin needs crazy amount of memory
- [`KT-23668`](https://youtrack.jetbrains.com/issue/KT-23668) Methods with internal visibility have different mangling names in IDE and in compiler
- [`KT-24892`](https://youtrack.jetbrains.com/issue/KT-24892) please remove usages of com.intellij.util.containers.ConcurrentFactoryMap#ConcurrentFactoryMap deprecated long ago
- [`KT-25144`](https://youtrack.jetbrains.com/issue/KT-25144) Quick fix “Change signature” changes class of argument when applied for descendant classes with enabled -Xnew-inference option
- [`KT-25356`](https://youtrack.jetbrains.com/issue/KT-25356) Update Gradle Kotlin-DSL icon according to new IDEA 2018.2 icons style
- [`KT-20056`](https://youtrack.jetbrains.com/issue/KT-20056) TCE on creating object of an anonymous class in Kotlin script
- [`KT-25092`](https://youtrack.jetbrains.com/issue/KT-25092) SourcePsi should be physical leaf element but got OPERATION_REFERENCE
- [`KT-25249`](https://youtrack.jetbrains.com/issue/KT-25249) Uast operates "Unit" type instead of "void"
- [`KT-25255`](https://youtrack.jetbrains.com/issue/KT-25255) Preferences | Languages & Frameworks | Kotlin Updates: show currently installed version
- [`KT-25297`](https://youtrack.jetbrains.com/issue/KT-25297) Inconsistency in `KotlinULambdaExpression` and `KotlinLocalFunctionULambdaExpression`
- [`KT-25515`](https://youtrack.jetbrains.com/issue/KT-25515) Add/remove analysis-related compiler setting does not update IDE project model immediately
- [`KT-25524`](https://youtrack.jetbrains.com/issue/KT-25524) UAST: proper resolve for function variable call
- [`KT-25640`](https://youtrack.jetbrains.com/issue/KT-25640) "Configure Kotlin" action changes values of language and API version in project settings

### IDE. Debugger

- [`KT-25147`](https://youtrack.jetbrains.com/issue/KT-25147) Conditional breakpoints doesn't work in `common` code of MPP
- [`KT-25152`](https://youtrack.jetbrains.com/issue/KT-25152) MPP debug doesn't navigate to `common` code if there are same named files in `common` and `platform` parts

### IDE. Gradle

- [`KT-22732`](https://youtrack.jetbrains.com/issue/KT-22732) TestNG runner is always used for TestNG tests even when Use Gradle runner is selected
- [`KT-25913`](https://youtrack.jetbrains.com/issue/KT-25913) Honor 'store generated project files externally option' for Kotlin facets imported from Gradle
- [`KT-25955`](https://youtrack.jetbrains.com/issue/KT-25955) Support expect/actual in new MPP imported into IDEA

### IDE. Inspections and Intentions

#### New Features

- [`KT-6633`](https://youtrack.jetbrains.com/issue/KT-6633) Inspection to detect unnecessary "with" calls
- [`KT-25146`](https://youtrack.jetbrains.com/issue/KT-25146) Add quick-fix for default parameter value removal
- [`KT-7675`](https://youtrack.jetbrains.com/issue/KT-7675) Create inspection to replace if with let
- [`KT-13515`](https://youtrack.jetbrains.com/issue/KT-13515) Add intention to replace '?.let' with null check
- [`KT-13854`](https://youtrack.jetbrains.com/issue/KT-13854) Need intention actions: to convert property with getter to initializer
- [`KT-15476`](https://youtrack.jetbrains.com/issue/KT-15476) Inspection to convert non-lazy chains of collection functions into sequences
- [`KT-22068`](https://youtrack.jetbrains.com/issue/KT-22068) Force usage of “it” in .forEach{} calls 
- [`KT-23445`](https://youtrack.jetbrains.com/issue/KT-23445) Inspection and quickfix to replace `assertTrue(a == b)` with `assertEquals(a, b)`
- [`KT-25270`](https://youtrack.jetbrains.com/issue/KT-25270) "return@foo" outside of lambda should have quickfix to remove "@foo" label

#### Fixes

- [`KT-11154`](https://youtrack.jetbrains.com/issue/KT-11154) Spell checking inspection is not suppressable
- [`KT-18681`](https://youtrack.jetbrains.com/issue/KT-18681) "Replace 'if' with 'when'" generates unnecessary else block
- [`KT-24001`](https://youtrack.jetbrains.com/issue/KT-24001) "Suspicious combination of == and ===" false positive
- [`KT-24385`](https://youtrack.jetbrains.com/issue/KT-24385) Convert lambda to reference refactor produces red code with companion object
- [`KT-24694`](https://youtrack.jetbrains.com/issue/KT-24694) Move lambda out of parentheses should not be applied for multiple functional parameters
- [`KT-25089`](https://youtrack.jetbrains.com/issue/KT-25089) False-positive "Call chain on collection type can be simplified" for `map` and `joinToString` on a `HashMap`
- [`KT-25169`](https://youtrack.jetbrains.com/issue/KT-25169) Impossible to suppress UAST/JVM inspections
- [`KT-25321`](https://youtrack.jetbrains.com/issue/KT-25321) Safe delete of a class property implementing constructor parameter at the platform side doesn't remove all the related declarations
- [`KT-25539`](https://youtrack.jetbrains.com/issue/KT-25539) `Make class open` quick fix doesn't update all the related implementations of a multiplatform class
- [`KT-25608`](https://youtrack.jetbrains.com/issue/KT-25608) Confusing "Redundant override" inspection message
- [`KT-16422`](https://youtrack.jetbrains.com/issue/KT-16422) Replace lambda with method reference inspections fails
- [`KT-21999`](https://youtrack.jetbrains.com/issue/KT-21999) Convert lambda to reference adds this with incorrect label
- [`KT-23467`](https://youtrack.jetbrains.com/issue/KT-23467) False positive `suspicious callable reference` on scoping function called on another lambda
- [`KT-25044`](https://youtrack.jetbrains.com/issue/KT-25044) "Implement member" quick-fix should not generate 'actual' modifier with expect declaration in interface only
- [`KT-25579`](https://youtrack.jetbrains.com/issue/KT-25579) Redundant semicolon erroneously reported during local var modifier ambiguity
- [`KT-25633`](https://youtrack.jetbrains.com/issue/KT-25633) “Add kotlin-XXX.jar to the classpath” quick fix adds dependency with invalid version in Gradle-based projects
- [`KT-25739`](https://youtrack.jetbrains.com/issue/KT-25739) "Convert to run" / "Convert to with" intentions incorrectly process references to Java static members
- [`KT-25928`](https://youtrack.jetbrains.com/issue/KT-25928) "Let extend" quick fix is suggested in case of nullable/non-null TYPE_MISMATCH collision
- [`KT-26042`](https://youtrack.jetbrains.com/issue/KT-26042) False positive "Remove redundant '.let' call" for lambda with destructured arguments

### IDE. KDoc

- [`KT-22815`](https://youtrack.jetbrains.com/issue/KT-22815) Update quick documentation
- [`KT-22648`](https://youtrack.jetbrains.com/issue/KT-22648) Quick Doc popup: break (long?) declarations into several lines

### IDE. Libraries

- [`KT-25129`](https://youtrack.jetbrains.com/issue/KT-25129) Idea freezes when Kotlin plugin tries to determine if jar is js lib in jvm module

### IDE. Navigation

- [`KT-25317`](https://youtrack.jetbrains.com/issue/KT-25317) `Go to actual declaration` keyboard shortcut doesn't work for `expect object`, showing "No implementations found" message
- [`KT-25492`](https://youtrack.jetbrains.com/issue/KT-25492) Find usages: keep `Expected functions` option state while searching for usages of a regular function
- [`KT-25498`](https://youtrack.jetbrains.com/issue/KT-25498) `Find Usages` doesn't show `Supertype` usages of `actual` declarations with constructor

### IDE. Project View

- [`KT-22823`](https://youtrack.jetbrains.com/issue/KT-22823) Text pasted into package is parsed as Kotlin before Java

### IDE. Refactorings

- [`KT-22072`](https://youtrack.jetbrains.com/issue/KT-22072) "Convert MutableMap.put to assignment" should not be applicable when put is used as expression
- [`KT-23590`](https://youtrack.jetbrains.com/issue/KT-23590) Incorrect conflict warning "Internal function will not be accessible" when moving class from jvm to common module
- [`KT-23594`](https://youtrack.jetbrains.com/issue/KT-23594) Incorrect conflict warning about IllegalStateException when moving class from jvm to common module
- [`KT-23772`](https://youtrack.jetbrains.com/issue/KT-23772) MPP: Refactor / Rename class does not update name of file containing related expect/actual class
- [`KT-23914`](https://youtrack.jetbrains.com/issue/KT-23914) Safe search false positives during moves between common and actual modules
- [`KT-25326`](https://youtrack.jetbrains.com/issue/KT-25326) Refactor/Safe Delete doesn't report `actual object` usages
- [`KT-25438`](https://youtrack.jetbrains.com/issue/KT-25438) Refactor/Safe delete of a multiplatform companion object: usage is not reported
- [`KT-25857`](https://youtrack.jetbrains.com/issue/KT-25857) Refactoring → Move moves whole file in case of moving class from Kotlin script
- [`KT-25858`](https://youtrack.jetbrains.com/issue/KT-25858) Refactoring → Move can be called only for class declarations in Kotlin script

### IDE. Script

- [`KT-25814`](https://youtrack.jetbrains.com/issue/KT-25814) IDE scripting console -> kotlin (JSR-223) - compilation errors - unresolved IDEA classes
- [`KT-25822`](https://youtrack.jetbrains.com/issue/KT-25822) jvmTarget from the script compiler options is ignored in the IDE

### IDE. Multiplatform

- [`KT-23368`](https://youtrack.jetbrains.com/issue/KT-23368) IDE: Build: JPS errors are reported for valid non-multiplatform module depending on multiplatform one

### IDE. Ultimate

- [`KT-25595`](https://youtrack.jetbrains.com/issue/KT-25595) Rename Kotlin-specific "Protractor" run configuration to distinguish it from the one provided by NodeJS plugin
- [`KT-19309`](https://youtrack.jetbrains.com/issue/KT-19309) Spring JPA Repository IntelliJ tooling with Kotlin

### IDE. Tests Support

- [`KT-26228`](https://youtrack.jetbrains.com/issue/KT-26228) NoClassDefFoundError: org/jetbrains/kotlin/idea/run/KotlinTestNgConfigurationProducer on running a JUnit test with TestNG plugin disabled

### Reflection

- [`KT-25541`](https://youtrack.jetbrains.com/issue/KT-25541) Incorrect parameter names in reflection for inner class constructor from Java class compiled with "-parameters"

### Tools. CLI

- [`KT-21910`](https://youtrack.jetbrains.com/issue/KT-21910) Add `-Xfriend-paths` compiler argument to support internal visibility checks in production/test sources from external build systems
- [`KT-25554`](https://youtrack.jetbrains.com/issue/KT-25554) Do not report warnings when `-XXLanguage` was used to turn on deprecation
- [`KT-25196`](https://youtrack.jetbrains.com/issue/KT-25196) Optional expected annotation is visible in platforms where it doesn't have actual

### Tools. JPS

- [`KT-25540`](https://youtrack.jetbrains.com/issue/KT-25540) JPS JS IC does not recompile usages from other modules when package is different

### Tools. kapt

- [`KT-25396`](https://youtrack.jetbrains.com/issue/KT-25396) KAPT Error: Unknown option: infoAsWarnings
- [`KT-26211`](https://youtrack.jetbrains.com/issue/KT-26211) Kotlin plugin 1.2.60+ breaks IDEA source/resource/test roots in a Maven project with Kapt

### Tools. Gradle

- [`KT-25025`](https://youtrack.jetbrains.com/issue/KT-25025) Inter-project IC for JS in Gradle
- [`KT-25455`](https://youtrack.jetbrains.com/issue/KT-25455) Gradle IC: when class signature is changed its indirect subclasses in different module are not recompiled

### Tools. JPS

- [`KT-25998`](https://youtrack.jetbrains.com/issue/KT-25998) Build process starts compiling w/o any changes (on release version)
- [`KT-25977`](https://youtrack.jetbrains.com/issue/KT-25977) Can not run a Kotlin test
- [`KT-26072`](https://youtrack.jetbrains.com/issue/KT-26072) MPP compilation issue
- [`KT-26113`](https://youtrack.jetbrains.com/issue/KT-26113) Build takes around 20 seconds in already fully built IDEA project

### Tools. Scripts

- [`KT-26142`](https://youtrack.jetbrains.com/issue/KT-26142) update maven-central remote repository url

### Tools. Incremental Compile

- [`KT-26528`](https://youtrack.jetbrains.com/issue/KT-26528) ISE “To save disabled cache status [delete] should be called (this behavior is kept for compatibility)” on compiling project with enabled IC in Maven

### JavaScript

- [`KT-22053`](https://youtrack.jetbrains.com/issue/KT-22053) JS: Secondary constructor of Throwable inheritor doesn't call to primary one
- [`KT-26064`](https://youtrack.jetbrains.com/issue/KT-26064) JS inliner calls wrong constructor in incremental build
- [`KT-26117`](https://youtrack.jetbrains.com/issue/KT-26117) JS runtime error: ArrayList_init instead of ArrayList_init_0

### Libraries

- [`KT-18067`](https://youtrack.jetbrains.com/issue/KT-18067) KotlinJS - String.compareTo(other: String, ignoreCase: Boolean = false): Int
- [`KT-19507`](https://youtrack.jetbrains.com/issue/KT-19507) Using @JvmName from stdlib-common fails to compile in JS module.
- [`KT-19508`](https://youtrack.jetbrains.com/issue/KT-19508) Add @JsName to stdlib-common for controlling JS implementation
- [`KT-24478`](https://youtrack.jetbrains.com/issue/KT-24478) Annotate relevant standard library annotations with @OptionalExpectation
- [`KT-25980`](https://youtrack.jetbrains.com/issue/KT-25980) JvmSynthetic annotation has no description in the docs

## 1.2.60

### Compiler

- [`KT-13762`](https://youtrack.jetbrains.com/issue/KT-13762) Prohibit annotations with target 'EXPRESSION' and retention 'BINARY' or 'RUNTIME'
- [`KT-18882`](https://youtrack.jetbrains.com/issue/KT-18882) Allow code to have platform specific annotations when compiled for different platforms
- [`KT-20356`](https://youtrack.jetbrains.com/issue/KT-20356) Internal compiler error - This method shouldn't be invoked for INVISIBLE_FAKE visibility
- [`KT-22517`](https://youtrack.jetbrains.com/issue/KT-22517) Deprecate smartcasts for local delegated properties
- [`KT-23153`](https://youtrack.jetbrains.com/issue/KT-23153) Compiler allows to set non constant value as annotation parameter
- [`KT-23413`](https://youtrack.jetbrains.com/issue/KT-23413) IndexOutOfBoundsException on local delegated properties from `provideDelegate` if there's at least one non-local delegated property
- [`KT-23742`](https://youtrack.jetbrains.com/issue/KT-23742) Optimise inline class redundant boxing on return from inlined lambda
- [`KT-24513`](https://youtrack.jetbrains.com/issue/KT-24513) High memory usage in Kotlin and 2018.1
- [`KT-24617`](https://youtrack.jetbrains.com/issue/KT-24617) Optional expected annotation is unresolved in a dependent platform module
- [`KT-24679`](https://youtrack.jetbrains.com/issue/KT-24679) KotlinUCallExpression doesn't resolve callee if it is an inline method
- [`KT-24808`](https://youtrack.jetbrains.com/issue/KT-24808) NI: nested `withContext` call is reported with `Suspension functions can be called only within coroutine body` error
- [`KT-24825`](https://youtrack.jetbrains.com/issue/KT-24825) NoClassDefFoundError on SAM adapter in a nested call in inlined lambda since 1.2.40
- [`KT-24859`](https://youtrack.jetbrains.com/issue/KT-24859) Disallow calls of functions annotated with receiver annotated with @RestrictsSuspension in foreign suspension context
- [`KT-24911`](https://youtrack.jetbrains.com/issue/KT-24911) Kotlin 1.2.50: UI for @RecentlyNonNull looks strange in the editor
- [`KT-25333`](https://youtrack.jetbrains.com/issue/KT-25333) Restrict visibility of Java static members from supertypes of companion object

### IDE

#### Performance Improvements

- [`KT-20924`](https://youtrack.jetbrains.com/issue/KT-20924) Slow KtLightAbstractAnnotation.getClsDelegate() lightAnnotations.kt 
- [`KT-23844`](https://youtrack.jetbrains.com/issue/KT-23844) Kotlin property accessor searcher consumes CPU when invoked on a scope consisting only of Java files

#### Fixes

- [`KT-4311`](https://youtrack.jetbrains.com/issue/KT-4311) "Override members" works wrong when function is extension
- [`KT-13948`](https://youtrack.jetbrains.com/issue/KT-13948) IDE plugins: improve description
- [`KT-15300`](https://youtrack.jetbrains.com/issue/KT-15300) "INFO - project.TargetPlatformDetector - Using default platform" flood in log
- [`KT-17350`](https://youtrack.jetbrains.com/issue/KT-17350) Implement members from interface fails when one of the generic types is unresolved
- [`KT-17668`](https://youtrack.jetbrains.com/issue/KT-17668) Edit Configuration dialog doesn't have a button for choosing the "Main class" field
- [`KT-19102`](https://youtrack.jetbrains.com/issue/KT-19102) Wrong equals() and hashCode() code generated for arrays of arrays
- [`KT-20056`](https://youtrack.jetbrains.com/issue/KT-20056) TCE on creating object of an anonymous class in Kotlin script
- [`KT-21863`](https://youtrack.jetbrains.com/issue/KT-21863) Imported typealias to object declared as "Unused import directive" when only referring to methods
- [`KT-23272`](https://youtrack.jetbrains.com/issue/KT-23272) Git commit not working
- [`KT-23407`](https://youtrack.jetbrains.com/issue/KT-23407) Pasting callable reference from different package suggests imports, but inserts incompilable FQN
- [`KT-23456`](https://youtrack.jetbrains.com/issue/KT-23456) UAST: Enum constant constructor call arguments missing from Kotlin enums
- [`KT-23942`](https://youtrack.jetbrains.com/issue/KT-23942) Fix building light-classes for MPP project containing multi-file facades
- [`KT-24072`](https://youtrack.jetbrains.com/issue/KT-24072) Kotlin SDK appears as many times as there are modules in the project
- [`KT-24412`](https://youtrack.jetbrains.com/issue/KT-24412) Kotlin create project wizard: Kotlin/JS no SDK
- [`KT-24933`](https://youtrack.jetbrains.com/issue/KT-24933) please remove usages of com.intellij.psi.search.searches.DirectClassInheritorsSearch#search(com.intellij.psi.PsiClass, com.intellij.psi.search.SearchScope, boolean, boolean) deprecated long ago
- [`KT-24943`](https://youtrack.jetbrains.com/issue/KT-24943) Project leak via LibraryEffectiveKindProviderImpl
- [`KT-24979`](https://youtrack.jetbrains.com/issue/KT-24979) IndexNotReadyException in KtLightClassForSourceDeclaration#isInheritor
- [`KT-24958`](https://youtrack.jetbrains.com/issue/KT-24958) Escaping goes insane when editing interpolated string in injected fragment editor
- [`KT-25024`](https://youtrack.jetbrains.com/issue/KT-25024) Wrong resolve scope while resolving java.lang.String PsiClassReferenceType
- [`KT-25092`](https://youtrack.jetbrains.com/issue/KT-25092) SourcePsi should be physical leaf element but got OPERATION_REFERENCE
- [`KT-25242`](https://youtrack.jetbrains.com/issue/KT-25242) 'Resolved to error element' highlighting is confusingly similar to an active live template
- [`KT-25249`](https://youtrack.jetbrains.com/issue/KT-25249) Uast operates "Unit" type instead of "void"
- [`KT-25255`](https://youtrack.jetbrains.com/issue/KT-25255) Preferences | Languages & Frameworks | Kotlin Updates: show currently installed version
- [`KT-25297`](https://youtrack.jetbrains.com/issue/KT-25297) Inconsistency in `KotlinULambdaExpression` and `KotlinLocalFunctionULambdaExpression`
- [`KT-25414`](https://youtrack.jetbrains.com/issue/KT-25414) Support checking eap-1.3 channel for updates
- [`KT-25524`](https://youtrack.jetbrains.com/issue/KT-25524) UAST: proper resolve for function variable call
- [`KT-25546`](https://youtrack.jetbrains.com/issue/KT-25546) Create popup in 1.2.x plugin if user upgrade version in gradle or maven to kotlin 1.3

### IDE. Android

- [`KT-17946`](https://youtrack.jetbrains.com/issue/KT-17946) Android Studio: remove Gradle configurator on configuring Kotlin
- [`KT-23040`](https://youtrack.jetbrains.com/issue/KT-23040) Wrong run configuration classpath in a mixed Java/Android project
- [`KT-24321`](https://youtrack.jetbrains.com/issue/KT-24321) Actual implementations from Android platform module are wrongly reported with `no corresponding expected declaration` in IDE
- [`KT-25018`](https://youtrack.jetbrains.com/issue/KT-25018) Exception `Dependencies for org.jetbrains.kotlin.resolve.calls.* cannot be satisfied` on a simple project in AS 3.2 Canary

### IDE. Code Style, Formatting

- [`KT-14066`](https://youtrack.jetbrains.com/issue/KT-14066) Comments on when branches are misplaced
- [`KT-25008`](https://youtrack.jetbrains.com/issue/KT-25008) Formatter: Use single indent for multiline elvis operator

### IDE. Completion

- [`KT-23627`](https://youtrack.jetbrains.com/issue/KT-23627) Autocompletion inserts FQN of stdlib functions inside of scoping lambda called on explicit `this`
- [`KT-25239`](https://youtrack.jetbrains.com/issue/KT-25239) Add postfix template for listOf/setOf/etc

### IDE. Debugger

- [`KT-23162`](https://youtrack.jetbrains.com/issue/KT-23162) Evaluate expression in multiplatform common test fails with JvmName missing when run in JVM
- [`KT-24903`](https://youtrack.jetbrains.com/issue/KT-24903) Descriptors leak from `KotlinMethodSmartStepTarget`

### IDE. Decompiler

- [`KT-23981`](https://youtrack.jetbrains.com/issue/KT-23981) Kotlin bytecode decompiler works in AWT thread

### IDE. Gradle

- [`KT-24614`](https://youtrack.jetbrains.com/issue/KT-24614) Gradle can't get published versions until commenting repositories in settings.gradle

### IDE. Gradle. Script

- [`KT-24588`](https://youtrack.jetbrains.com/issue/KT-24588) Multiple Gradle Kotlin DSL script files dependencies lifecycle is flawed

### IDE. Hints

- [`KT-22432`](https://youtrack.jetbrains.com/issue/KT-22432) Type hints: Don't include ".Companion" in the names of types defined inside companion object
- [`KT-22653`](https://youtrack.jetbrains.com/issue/KT-22653) Lambda return hint is duplicated for increment/decrement expressions
- [`KT-24828`](https://youtrack.jetbrains.com/issue/KT-24828) Double return hints on labeled expressions

### IDE. Inspections and Intentions

#### New Features

- [`KT-7710`](https://youtrack.jetbrains.com/issue/KT-7710) Intention to convert lambda to anonymous function
- [`KT-11850`](https://youtrack.jetbrains.com/issue/KT-11850) Add `nested lambdas with implicit parameters` warning
- [`KT-13688`](https://youtrack.jetbrains.com/issue/KT-13688) Add 'Change to val' quickfix for delegates without setValue
- [`KT-13782`](https://youtrack.jetbrains.com/issue/KT-13782) Intention (and may be inspection) to convert toString() call to string template
- [`KT-14779`](https://youtrack.jetbrains.com/issue/KT-14779) Inspection to replace String.format with string templates
- [`KT-15666`](https://youtrack.jetbrains.com/issue/KT-15666) Unused symbol: delete header & its implementations together
- [`KT-18810`](https://youtrack.jetbrains.com/issue/KT-18810) Quick-fix for 'is' absence in when
- [`KT-22871`](https://youtrack.jetbrains.com/issue/KT-22871) Add quickfix to move const val into companion object
- [`KT-23082`](https://youtrack.jetbrains.com/issue/KT-23082) Add quick-fix for type variance conflict
- [`KT-23306`](https://youtrack.jetbrains.com/issue/KT-23306) Add intention of putting remaining when-values even in end, and even if there is "else"
- [`KT-23897`](https://youtrack.jetbrains.com/issue/KT-23897) Inspections: report extension functions declared in same class 
- [`KT-24295`](https://youtrack.jetbrains.com/issue/KT-24295) Add "Remove 'lateinit'" quickfix
- [`KT-24509`](https://youtrack.jetbrains.com/issue/KT-24509) Inspection "JUnit tests should return Unit" 
- [`KT-24815`](https://youtrack.jetbrains.com/issue/KT-24815) Add Quick fix to remove illegal "const" modifier
- [`KT-25238`](https://youtrack.jetbrains.com/issue/KT-25238) Add quickfix wrapping expression into listOf/setOf/etc in case of type mismatch

#### Fixes

- [`KT-12298`](https://youtrack.jetbrains.com/issue/KT-12298) Fix override signature doesn't remove bogus reciever
- [`KT-20523`](https://youtrack.jetbrains.com/issue/KT-20523) Don't mark as unused functions with `@kotlin.test.*` annotations  and classes with such members
- [`KT-20583`](https://youtrack.jetbrains.com/issue/KT-20583) Report "redundant let" even for `it` in argument position
- [`KT-21556`](https://youtrack.jetbrains.com/issue/KT-21556) "Call chain on collection type may be simplified" generates uncompiled code on IntArray
- [`KT-22030`](https://youtrack.jetbrains.com/issue/KT-22030) Invalid Function can be private inspection
- [`KT-22041`](https://youtrack.jetbrains.com/issue/KT-22041) "Convert lambda to reference" suggested incorrectly
- [`KT-22089`](https://youtrack.jetbrains.com/issue/KT-22089) Explict This inspection false negative with synthetic Java property
- [`KT-22094`](https://youtrack.jetbrains.com/issue/KT-22094) Can be private false positive with function called from lambda inside inline function
- [`KT-22162`](https://youtrack.jetbrains.com/issue/KT-22162) Add indices to loop fails on destructing declarator
- [`KT-22180`](https://youtrack.jetbrains.com/issue/KT-22180) "Can be private" false positive when function is called by inline function inside property initializer
- [`KT-22371`](https://youtrack.jetbrains.com/issue/KT-22371) "Create secondary constructor" quick fix is not suggested for supertype constructor reference
- [`KT-22758`](https://youtrack.jetbrains.com/issue/KT-22758) "Create ..." and "Import" quick fixes are not available on unresolved class name in primary constructor
- [`KT-23105`](https://youtrack.jetbrains.com/issue/KT-23105) Create actual implementation shouldn't generate default parameter values
- [`KT-23106`](https://youtrack.jetbrains.com/issue/KT-23106) Implement methods should respect actual modifier as well
- [`KT-23326`](https://youtrack.jetbrains.com/issue/KT-23326) "Add missing actual members" quick fix fails with AE at KtPsiFactory.createDeclaration() with _wrong_ expect code
- [`KT-23452`](https://youtrack.jetbrains.com/issue/KT-23452) "Remove unnecessary parentheses" reports parens of returned function
- [`KT-23686`](https://youtrack.jetbrains.com/issue/KT-23686) "Add missing actual members" should not add primary actual constructor if it's present as secondary one
- [`KT-23697`](https://youtrack.jetbrains.com/issue/KT-23697) Android project with 'org.jetbrains.kotlin.platform.android' plugin: all multiplatform IDE features are absent
- [`KT-23752`](https://youtrack.jetbrains.com/issue/KT-23752) False positive "Remove variable" quick fix on property has lambda or anonymous function initializer
- [`KT-23762`](https://youtrack.jetbrains.com/issue/KT-23762) Add missing actual members quick fix adds actual declaration for val/var again if it was in the primary constructor
- [`KT-23788`](https://youtrack.jetbrains.com/issue/KT-23788) Can't convert long char literal to string if it starts with backslash
- [`KT-23860`](https://youtrack.jetbrains.com/issue/KT-23860) Import quick fix is not available in class constructor containing transitive dependency parameters
- [`KT-24349`](https://youtrack.jetbrains.com/issue/KT-24349) False positive "Call on collection type may be reduced"
- [`KT-24374`](https://youtrack.jetbrains.com/issue/KT-24374) "Class member can have private visibility" inspection reports `expect` members
- [`KT-24422`](https://youtrack.jetbrains.com/issue/KT-24422) Android Studio erroneously reporting that `@Inject lateinit var` can be made private
- [`KT-24423`](https://youtrack.jetbrains.com/issue/KT-24423) False inspection warning "redundant type checks for object"
- [`KT-24425`](https://youtrack.jetbrains.com/issue/KT-24425) wrong hint remove redundant Companion
- [`KT-24537`](https://youtrack.jetbrains.com/issue/KT-24537) False positive `property can be private` on actual properties in a multiplatform project 
- [`KT-24557`](https://youtrack.jetbrains.com/issue/KT-24557) False warning "Remove redundant call" for nullable.toString
- [`KT-24562`](https://youtrack.jetbrains.com/issue/KT-24562) actual extension function implementation warns Receiver type unused
- [`KT-24632`](https://youtrack.jetbrains.com/issue/KT-24632) Quick fix to add getter and setter shouldn't use `field` when it is not allowed
- [`KT-24816`](https://youtrack.jetbrains.com/issue/KT-24816) Inspection: Sealed subclass can be object shouldn't be reported on classes with state 

### IDE. JS

- [`KT-5948`](https://youtrack.jetbrains.com/issue/KT-5948) JS: project shouldn't have "Java file" in new item menu

### IDE. Multiplatform

- [`KT-23722`](https://youtrack.jetbrains.com/issue/KT-23722) MPP: Run tests from common modules should recompile correspond JVM implementation module
- [`KT-24159`](https://youtrack.jetbrains.com/issue/KT-24159) MPP: Show Kotlin Bytecode does not work for common code
- [`KT-24839`](https://youtrack.jetbrains.com/issue/KT-24839) freeCompilerArgs are not imported into Kotlin facet of Android module in IDEA

### IDE. Navigation

- [`KT-11477`](https://youtrack.jetbrains.com/issue/KT-11477) Kotlin searchers consume CPU in a project without any Kotlin files
- [`KT-17512`](https://youtrack.jetbrains.com/issue/KT-17512) Finding usages of actual declarations in common modules
- [`KT-20825`](https://youtrack.jetbrains.com/issue/KT-20825) Header icon on actual class is lost on new line adding
- [`KT-21011`](https://youtrack.jetbrains.com/issue/KT-21011) Difference in information shown for "Is subclassed by" gutter on mouse hovering and clicking
- [`KT-21113`](https://youtrack.jetbrains.com/issue/KT-21113) Expected gutter icon on companion object is unstable
- [`KT-21710`](https://youtrack.jetbrains.com/issue/KT-21710) Override gutter markers are missing for types in sources jar
- [`KT-22177`](https://youtrack.jetbrains.com/issue/KT-22177) Double "A" icon for an expect class with constructor
- [`KT-23685`](https://youtrack.jetbrains.com/issue/KT-23685) Navigation from expect part to actual with ctrl+alt+B shortcut should provide a choice to what actual part to go
- [`KT-24812`](https://youtrack.jetbrains.com/issue/KT-24812) Search suggestion text overlaps for long names

### IDE. Refactorings

- [`KT-15159`](https://youtrack.jetbrains.com/issue/KT-15159) Introduce typealias: Incorrect applying of a typealias in constructor calls in val/var and AssertionError
- [`KT-15351`](https://youtrack.jetbrains.com/issue/KT-15351) Extract Superclass/Interface: existent target file name is rejected; TCE: "null cannot be cast to non-null type org.jetbrains.kotlin.psi.KtFile" at ExtractSuperRefactoring.createClass()
- [`KT-16281`](https://youtrack.jetbrains.com/issue/KT-16281) Extract Interface: private member with Make Abstract = Yes produces incompilable code
- [`KT-16284`](https://youtrack.jetbrains.com/issue/KT-16284) Extract Interface/Superclass: reference to private member turns incompilable, when referring element is made abstract
- [`KT-17235`](https://youtrack.jetbrains.com/issue/KT-17235) Introduce Parameter leaks listener if refactoring is cancelled while in progress
- [`KT-17742`](https://youtrack.jetbrains.com/issue/KT-17742) Refactor / Rename Java getter to `get()` does not update Kotlin references
- [`KT-18555`](https://youtrack.jetbrains.com/issue/KT-18555) Refactor / Extract Interface, Superclass: Throwable: "Refactorings should be invoked inside transaction" at RefactoringDialog.show()
- [`KT-18736`](https://youtrack.jetbrains.com/issue/KT-18736) Extract interface: import for property type is omitted
- [`KT-20260`](https://youtrack.jetbrains.com/issue/KT-20260) AE “Unexpected container” on calling Refactor → Move for class in Kotlin script
- [`KT-20465`](https://youtrack.jetbrains.com/issue/KT-20465) "Introduce variable" in build.gradle.kts creates a variable with no template to change its name
- [`KT-20467`](https://youtrack.jetbrains.com/issue/KT-20467) Refactor → Extract Function: CCE “KtNamedFunction cannot be cast to KtClassOrObject” on calling refactoring for constructor
- [`KT-20469`](https://youtrack.jetbrains.com/issue/KT-20469) NDFDE “Descriptor wasn't found for declaration VALUE_PARAMETER” on calling Refactor → Extract Function on constructor argument
- [`KT-22931`](https://youtrack.jetbrains.com/issue/KT-22931) Converting a scoping function with receiver into one with parameter may change the semantics
- [`KT-23983`](https://youtrack.jetbrains.com/issue/KT-23983) Extract function: Reified type parameters are not extracted properly
- [`KT-24460`](https://youtrack.jetbrains.com/issue/KT-24460) Rename refactoring does not update super call
- [`KT-24574`](https://youtrack.jetbrains.com/issue/KT-24574) Changing Java constructor signature from Kotlin usage is totally broken
- [`KT-24712`](https://youtrack.jetbrains.com/issue/KT-24712) Extract Function Parameter misses 'suspend' for lambda type
- [`KT-24763`](https://youtrack.jetbrains.com/issue/KT-24763) "Change signature" refactoring breaks Kotlin code
- [`KT-24968`](https://youtrack.jetbrains.com/issue/KT-24968) Type hints disappear after "Copy" refactoring
- [`KT-24992`](https://youtrack.jetbrains.com/issue/KT-24992) The IDE got stuck showing a modal dialog (kotlin refactoring) and doesn’t react to any actions

### IDE. Script

- [`KT-25373`](https://youtrack.jetbrains.com/issue/KT-25373) Deadlock in idea plugin

### IDE. Tests Support

- [`KT-18319`](https://youtrack.jetbrains.com/issue/KT-18319) Gradle: Run tests action does not work when test name contains spaces
- [`KT-22306`](https://youtrack.jetbrains.com/issue/KT-22306) Empty gutter menu for main() and test methods in Kotlin/JS project
- [`KT-23672`](https://youtrack.jetbrains.com/issue/KT-23672) JUnit test runner is unaware of @kotlin.test.Test tests when used in common multiplatform module, even if looked from JVM multiplatform module
- [`KT-25253`](https://youtrack.jetbrains.com/issue/KT-25253) No “run” gutter icons for tests in Kotlin/JS project

### JavaScript

- [`KT-22376`](https://youtrack.jetbrains.com/issue/KT-22376) JS: TranslationRuntimeException on 'for (x in ("a"))'
- [`KT-23458`](https://youtrack.jetbrains.com/issue/KT-23458) ClassCastException when compiling when statements to JS

### Libraries

- [`KT-24204`](https://youtrack.jetbrains.com/issue/KT-24204) Empty progression last value overflows resulting in progression being non-empty
- [`KT-25351`](https://youtrack.jetbrains.com/issue/KT-25351) `TestNGAsserter` needs to swap expected/actual

### Reflection

- [`KT-16616`](https://youtrack.jetbrains.com/issue/KT-16616) KotlinReflectionInternalError: Reflection on built-in Kotlin types is not yet fully supported in getMembersOfStandardJavaClasses.kt
- [`KT-17542`](https://youtrack.jetbrains.com/issue/KT-17542) KotlinReflectionInternalError on ::values of enum class 
- [`KT-20442`](https://youtrack.jetbrains.com/issue/KT-20442) ReflectJvmMapping.getJavaConstructor() fails with Call is not yet supported for anonymous class
- [`KT-21973`](https://youtrack.jetbrains.com/issue/KT-21973) Method.kotlinFunction for top level extension function returns null when app is started from test sources
- [`KT-22048`](https://youtrack.jetbrains.com/issue/KT-22048) Reflection explodes when attempting to get constructors of an enum with overridden method

### Tools. Android Extensions

- [`KT-22576`](https://youtrack.jetbrains.com/issue/KT-22576) Parcelable: Allow Parcelize to work with object and enum types
- [`KT-24459`](https://youtrack.jetbrains.com/issue/KT-24459) @IgnoredOnParcel annotation doesn't work for @Parcelize
- [`KT-24720`](https://youtrack.jetbrains.com/issue/KT-24720) Parcelable: java.lang.LinkageError

### Tools. Compiler Plugins

- [`KT-23808`](https://youtrack.jetbrains.com/issue/KT-23808) Array<Int> in @Parcelize class generates an java.lang.VerifyError

### Tools. Gradle

- [`KT-18621`](https://youtrack.jetbrains.com/issue/KT-18621) org.jetbrains.kotlin.incremental.fileUtils.kt conflicts when compiler and gradle plugin in classpath
- [`KT-24497`](https://youtrack.jetbrains.com/issue/KT-24497) Externalized all-open plugin is not applied to a project
- [`KT-24559`](https://youtrack.jetbrains.com/issue/KT-24559) Multiple Kotlin daemon instances are started when building MPP with Gradle
- [`KT-24560`](https://youtrack.jetbrains.com/issue/KT-24560) Multiple Kotlin daemon instances are started when Gradle parallel build is used
- [`KT-24653`](https://youtrack.jetbrains.com/issue/KT-24653) Kotlin plugins don't work when classpath dependency is not declared in current or root project
- [`KT-24675`](https://youtrack.jetbrains.com/issue/KT-24675) Use Gradle dependency resolution to get compiler classpath
- [`KT-24676`](https://youtrack.jetbrains.com/issue/KT-24676) Use Gradle dependency resolution to form compiler plugin classpath
- [`KT-24946`](https://youtrack.jetbrains.com/issue/KT-24946) ISE: "The provided plugin org.jetbrains.kotlin.scripting.compiler.plugin.ScriptingCompilerConfigurationComponentRegistrar is not compatible with this version of compiler" when build simple Gradle with Zulu JDK  

### Tools. Incremental Compile

- [`KT-25051`](https://youtrack.jetbrains.com/issue/KT-25051) Change in "kotlin-android" project w/o package parts causes non-incremental compilation of dependent modules

### Tools. J2K

- [`KT-9945`](https://youtrack.jetbrains.com/issue/KT-9945) converting java to kotlin confuses git

### Tools. JPS

- [`KT-19957`](https://youtrack.jetbrains.com/issue/KT-19957) Support incremental compilation to JS in JPS
- [`KT-22611`](https://youtrack.jetbrains.com/issue/KT-22611) Support compiling scripts in JPS
- [`KT-23558`](https://youtrack.jetbrains.com/issue/KT-23558) JPS: Support multiplatform projects
- [`KT-23757`](https://youtrack.jetbrains.com/issue/KT-23757) JPS: Incremental multiplatform projects compilation 
- [`KT-24936`](https://youtrack.jetbrains.com/issue/KT-24936) Don't use internal terms in compiler progress messages
- [`KT-25218`](https://youtrack.jetbrains.com/issue/KT-25218) Build fails as Javac doesn't see Kotlin classes

### Tools. Scripts

- [`KT-24926`](https://youtrack.jetbrains.com/issue/KT-24926) NoSuchElementException in TemplateAnnotationVisitor when upgrading the Gradle Kotlin DSL to Kotlin 1.2.50

### Tools. kapt

- [`KT-24313`](https://youtrack.jetbrains.com/issue/KT-24313) Unable to use KAPT when dependency to it is added to buildSrc
- [`KT-24449`](https://youtrack.jetbrains.com/issue/KT-24449) 'kapt.kotlin.generated' is not marked as source root in Android Studio 3.1 and 3.2
- [`KT-24538`](https://youtrack.jetbrains.com/issue/KT-24538) Kapt performs Kotlin compilation when annotation processors are not configured
- [`KT-24919`](https://youtrack.jetbrains.com/issue/KT-24919) Caused by: org.gradle.api.InvalidUserDataException: 'projectDir' is not a file
- [`KT-24963`](https://youtrack.jetbrains.com/issue/KT-24963) gradle kapt plugin's assumption on build dir causing duplicate class error
- [`KT-24985`](https://youtrack.jetbrains.com/issue/KT-24985) Kapt: Allow to disable info->warning mapping in logger
- [`KT-25071`](https://youtrack.jetbrains.com/issue/KT-25071) kapt sometimes emits java stubs with imports that should be static imports
- [`KT-25131`](https://youtrack.jetbrains.com/issue/KT-25131) Kapt should not load annotation processors when generating stubs

## 1.2.51

### Backend. JVM

- [`KT-23943`](https://youtrack.jetbrains.com/issue/KT-23943) Wrong autoboxing for non-null inline class inside elvis with `null` constant
- [`KT-24952`](https://youtrack.jetbrains.com/issue/KT-24952) EnumConstantNotPresentExceptionProxy from Java reflection on annotation class with target TYPE on JVM < 8
- [`KT-24986`](https://youtrack.jetbrains.com/issue/KT-24986) Android project release build with ProGuard enabled crashes with IllegalAccessError: Final field cannot be written to by method

### Binary Metadata

- [`KT-24944`](https://youtrack.jetbrains.com/issue/KT-24944) Exception from stubs: "Unknown type parameter with id = 1" (EA-120997)

### Reflection

- [`KT-23962`](https://youtrack.jetbrains.com/issue/KT-23962) MalformedParameterizedTypeException when reflecting GeneratedMessageLite.ExtendableMessage

### Tools. Gradle

- [`KT-24956`](https://youtrack.jetbrains.com/issue/KT-24956) Kotlin Gradle plugin's inspectClassesForKotlinIC task for the new 1.2.50 release takes incredibly long
- [`KT-23866`](https://youtrack.jetbrains.com/issue/KT-23866) Kapt plugin should pass arguments from compiler argument providers to annotation processors
- [`KT-24716`](https://youtrack.jetbrains.com/issue/KT-24716) 1.2.50 emits warning "Classpath entry points to a non-existent location:"
- [`KT-24832`](https://youtrack.jetbrains.com/issue/KT-24832) Inter-project IC does not work when "kotlin-android" project depends on "kotlin" project
- [`KT-24938`](https://youtrack.jetbrains.com/issue/KT-24938) Gradle parallel execution fails on multi-module Gradle Project
- [`KT-25027`](https://youtrack.jetbrains.com/issue/KT-25027) Kapt plugin: Kapt and KaptGenerateStubs tasks have some incorrect inputs

### Tools. Scripts

- [`KT-24926`](https://youtrack.jetbrains.com/issue/KT-24926) NoSuchElementException in TemplateAnnotationVisitor when upgrading the Gradle Kotlin DSL to Kotlin 1.2.50

## 1.2.50

### Compiler

- [`KT-23360`](https://youtrack.jetbrains.com/issue/KT-23360) Do not serialize annotations with retention SOURCE to metadata
- [`KT-24278`](https://youtrack.jetbrains.com/issue/KT-24278) Hard-code to kotlin compiler annotation for android library migration
- [`KT-24472`](https://youtrack.jetbrains.com/issue/KT-24472) Support argfiles in kotlinc with -Xargfile
- [`KT-24593`](https://youtrack.jetbrains.com/issue/KT-24593) Support -XXLanguage:{+|-}LanguageFeature compiler arguments to enable/disable specific features
- [`KT-24637`](https://youtrack.jetbrains.com/issue/KT-24637) Introduce "progressive" mode of compiler

#### Backend. JS

- [`KT-23094`](https://youtrack.jetbrains.com/issue/KT-23094) JS compiler: Delegation fails to pass the continuation parameter to child suspend function
- [`KT-23582`](https://youtrack.jetbrains.com/issue/KT-23582) JS: Fails to inline, produces bad code
- [`KT-24335`](https://youtrack.jetbrains.com/issue/KT-24335) JS: Invalid implement of external interface

#### Backend. JVM

- [`KT-12330`](https://youtrack.jetbrains.com/issue/KT-12330) Slightly improve generated bytecode for data class equals/hashCode methods
- [`KT-18576`](https://youtrack.jetbrains.com/issue/KT-18576) Debugger fails to show decomposed suspend lambda parameters
- [`KT-22063`](https://youtrack.jetbrains.com/issue/KT-22063) Add intrinsics for javaObjectType and javaPrimitiveType
- [`KT-23402`](https://youtrack.jetbrains.com/issue/KT-23402) Internal error: Couldn't inline method call because the compiler couldn't obtain compiled body for inline function with reified type parameter
- [`KT-23704`](https://youtrack.jetbrains.com/issue/KT-23704) Unstable `checkExpressionValueIsNotNull()` generation in bytecode
- [`KT-23707`](https://youtrack.jetbrains.com/issue/KT-23707) Unstable bridge generation order
- [`KT-23857`](https://youtrack.jetbrains.com/issue/KT-23857) Annotation with target TYPE is not applicable to TYPE_USE in Java sources
- [`KT-23910`](https://youtrack.jetbrains.com/issue/KT-23910) @JvmOverloads doesn't work with default arguments in common code
- [`KT-24427`](https://youtrack.jetbrains.com/issue/KT-24427) Protected function having toArray-like signature from collection becomes public in bytecode
- [`KT-24661`](https://youtrack.jetbrains.com/issue/KT-24661) Support binary compatibility mode for @JvmDefault

#### Frontend

- [`KT-21129`](https://youtrack.jetbrains.com/issue/KT-21129) Unused parameter in property setter is not reported
- [`KT-21157`](https://youtrack.jetbrains.com/issue/KT-21157) Kotlin script: engine can take forever to eval certain code after several times
- [`KT-22740`](https://youtrack.jetbrains.com/issue/KT-22740) REPL slows down during extensions compiling
- [`KT-23124`](https://youtrack.jetbrains.com/issue/KT-23124) Kotlin multiplatform project causes IntelliJ build errors
- [`KT-23209`](https://youtrack.jetbrains.com/issue/KT-23209) Compiler throwing frontend exception
- [`KT-23589`](https://youtrack.jetbrains.com/issue/KT-23589) Report a warning on local annotation classes
- [`KT-23760`](https://youtrack.jetbrains.com/issue/KT-23760) Unable to implement common interface with fun member function with typealiased parameter

### Android

- [`KT-23244`](https://youtrack.jetbrains.com/issue/KT-23244) Option to Disable View Binding generation in Kotlin Android Extensions Plugin

### IDE

- [`KT-8407`](https://youtrack.jetbrains.com/issue/KT-8407) TestNG: running tests from context creates new run configuration every time
- [`KT-9218`](https://youtrack.jetbrains.com/issue/KT-9218) Searching for compilable files takes too long
- [`KT-15019`](https://youtrack.jetbrains.com/issue/KT-15019) Editor: `args` reference in .kts file is red
- [`KT-18769`](https://youtrack.jetbrains.com/issue/KT-18769) Expand Selection on opening curly brace should select the entire block right away
- [`KT-19055`](https://youtrack.jetbrains.com/issue/KT-19055) Idea hangs on copy-paste big Kotlin files
- [`KT-20605`](https://youtrack.jetbrains.com/issue/KT-20605) Unresolved reference on instance from common module function
- [`KT-20824`](https://youtrack.jetbrains.com/issue/KT-20824) Type mismatch for common function taking a non-mapped Kotlin's expected class from stdlib-common, with actual typealias on JVM
- [`KT-20897`](https://youtrack.jetbrains.com/issue/KT-20897) Can't navigate to declaration after PsiInvalidElementAccessException exception
- [`KT-22527`](https://youtrack.jetbrains.com/issue/KT-22527) Kotlin UAST does not evaluate values inside delegation expressions
- [`KT-22868`](https://youtrack.jetbrains.com/issue/KT-22868) Implementing an `expected class` declaration using `actual typealias` produces "good code that is red"
- [`KT-22922`](https://youtrack.jetbrains.com/issue/KT-22922) Override Members should add experimental annotation when required
- [`KT-23384`](https://youtrack.jetbrains.com/issue/KT-23384) Hotspot in org.jetbrains.kotlin.idea.caches.resolve.IDELightClassGenerationSupport.getKotlinInternalClasses(FqName, GlobalSearchScope) IDELightClassGenerationSupport.kt ?
- [`KT-23408`](https://youtrack.jetbrains.com/issue/KT-23408) Don't render @NonNull and @Nullable annotations in parameter info for Java methods
- [`KT-23557`](https://youtrack.jetbrains.com/issue/KT-23557) Expression Bodies should have implicit `return` in Uast
- [`KT-23745`](https://youtrack.jetbrains.com/issue/KT-23745) Unable to implement common interface
- [`KT-23746`](https://youtrack.jetbrains.com/issue/KT-23746) Logger$EmptyThrowable "[kts] cannot find a valid script definition annotation on the class class ScriptTemplateWithArgs" with LivePlugin enabled
- [`KT-23975`](https://youtrack.jetbrains.com/issue/KT-23975) Move Kotlin internal actions under Idea Internal actions menu
- [`KT-24268`](https://youtrack.jetbrains.com/issue/KT-24268) Other main menu item
- [`KT-24438`](https://youtrack.jetbrains.com/issue/KT-24438) ISE “The provided plugin org.jetbrains.kotlin.scripting.compiler.plugin.ScriptingCompilerConfigurationComponentRegistrar is not compatible with this version of compiler” after rebuilding simple Gradle-based project via JPS.

#### IDE. Configuration

- [`KT-10935`](https://youtrack.jetbrains.com/issue/KT-10935) Add menu entry to create new kotlin .kts scripts
- [`KT-20511`](https://youtrack.jetbrains.com/issue/KT-20511) Library added from maven (using IDEA UI) is not detected as Kotlin/JS library (since type="repository")
- [`KT-20665`](https://youtrack.jetbrains.com/issue/KT-20665) Kotlin Gradle script created by New Project/Module wizard fails with Gradle 4.1+
- [`KT-21844`](https://youtrack.jetbrains.com/issue/KT-21844) Create Kotlin class dialog: make class abstract automatically
- [`KT-22305`](https://youtrack.jetbrains.com/issue/KT-22305) Language and API versions of Kotlin compiler are “Latest” by default in some ways of creating new project
- [`KT-23261`](https://youtrack.jetbrains.com/issue/KT-23261) New MPP design: please show popup with error message if module name is not set
- [`KT-23638`](https://youtrack.jetbrains.com/issue/KT-23638) Kotlin plugin breaks project opening for PhpStorm/WebStorm
- [`KT-23658`](https://youtrack.jetbrains.com/issue/KT-23658) Unclear options “Gradle” and “Gradle (Javascript)” on configuring Kotlin in Gradle- and Maven-based projects
- [`KT-23845`](https://youtrack.jetbrains.com/issue/KT-23845) IntelliJ Maven Plugin does not pass javaParameters option to Kotlin facet
- [`KT-23980`](https://youtrack.jetbrains.com/issue/KT-23980) Move "Update Channel" from "Configure Kotlin Plugin Updates" to settings
- [`KT-24504`](https://youtrack.jetbrains.com/issue/KT-24504) Existent JPS-based Kotlin/JS module is converted to new format, while New Project wizard and facet manipulations still create old format

#### IDE. Debugger

- [`KT-23886`](https://youtrack.jetbrains.com/issue/KT-23886) Both java and kotlin breakpoints in kotlin files
- [`KT-24136`](https://youtrack.jetbrains.com/issue/KT-24136) Debugger: update drop-down menu for the line with lambdas

#### IDE. Editing

- [`KT-2582`](https://youtrack.jetbrains.com/issue/KT-2582) When user inputs triple quote, add matching triple quote automatically
- [`KT-5206`](https://youtrack.jetbrains.com/issue/KT-5206) Long lists of arguments are not foldable
- [`KT-23457`](https://youtrack.jetbrains.com/issue/KT-23457) Auto-import and Import quick fix do not suggest classes from common module [Common test can't find class with word `Abstract` in name.]
- [`KT-23235`](https://youtrack.jetbrains.com/issue/KT-23235) Super slow editing with auto imports enabled

#### IDE. Gradle

- [`KT-23234`](https://youtrack.jetbrains.com/issue/KT-23234) Test names for tests containing inner classes are sporadically reported to teamcity runs.
- [`KT-23383`](https://youtrack.jetbrains.com/issue/KT-23383) Optional plugin dependency for kotlin gradle plugin 'java' subsystem dependent features
- [`KT-22588`](https://youtrack.jetbrains.com/issue/KT-22588) Resolver for 'project source roots and libraries for platform JVM' does not know how to resolve on Gradle Kotlin DSL project without Java and Kotlin
- [`KT-23616`](https://youtrack.jetbrains.com/issue/KT-23616) Synchronize script dependencies not at Gradle Sync
- [`KT-24444`](https://youtrack.jetbrains.com/issue/KT-24444) Do not store proxy objects from Gradle importer in the project model
- [`KT-24586`](https://youtrack.jetbrains.com/issue/KT-24586) MVNFE “Cannot resolve external dependency org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.2.41 because no repositories are defined.” on creating Gradle project with Kotlin only (probably due to lack of repositories block)
- [`KT-24671`](https://youtrack.jetbrains.com/issue/KT-24671) dependencies missed in buildscript block after creating new Gradle-based project in 173 IDEA

#### IDE. Inspections and Intentions

##### New Features

- [`KT-7822`](https://youtrack.jetbrains.com/issue/KT-7822) Convert foreach to for loop should place caret on the variable declaration
- [`KT-9943`](https://youtrack.jetbrains.com/issue/KT-9943) Quick fix/Intention to indent a raw string
- [`KT-15063`](https://youtrack.jetbrains.com/issue/KT-15063) Inspection for coroutine: unused Deferred result
- [`KT-16085`](https://youtrack.jetbrains.com/issue/KT-16085) Inspection "main should return Unit"
- [`KT-20305`](https://youtrack.jetbrains.com/issue/KT-20305) Inspection: Refactor sealed sub-class to object
- [`KT-21413`](https://youtrack.jetbrains.com/issue/KT-21413) Missing inspection: parentheses can be deleted when the only constructor parameter is a function not existing
- [`KT-23137`](https://youtrack.jetbrains.com/issue/KT-23137) Intention for converting to block comment and vise versa
- [`KT-23266`](https://youtrack.jetbrains.com/issue/KT-23266) Add intention(s) to put arguments / parameters on one line
- [`KT-23419`](https://youtrack.jetbrains.com/issue/KT-23419) Intention to replace vararg with array and vice versa
- [`KT-23617`](https://youtrack.jetbrains.com/issue/KT-23617) Add inspection: redundant internal in local anonymous object / class
- [`KT-23775`](https://youtrack.jetbrains.com/issue/KT-23775) IntelliJ plugin: improve "accessor call that can be replaced with property"
- [`KT-24235`](https://youtrack.jetbrains.com/issue/KT-24235) Inspection to replace async.await with withContext
- [`KT-24263`](https://youtrack.jetbrains.com/issue/KT-24263) Add `Make variable immutable` quickfix for const
- [`KT-24433`](https://youtrack.jetbrains.com/issue/KT-24433) Inspection for coroutines: unused async result

##### Performance Improvements

- [`KT-23566`](https://youtrack.jetbrains.com/issue/KT-23566) "Can be private" works on ResolutionResultsCache.kt (from Kotlin project) enormously slow

##### Fixes

- [`KT-6364`](https://youtrack.jetbrains.com/issue/KT-6364) Incorrect quick-fixes are suggested for nullable extension function call
- [`KT-11156`](https://youtrack.jetbrains.com/issue/KT-11156) Incorrect highlighting for nested class in "Redundant SAM-constructor" inspection
- [`KT-11427`](https://youtrack.jetbrains.com/issue/KT-11427) "Replace if with when" does not take break / continue into account
- [`KT-11740`](https://youtrack.jetbrains.com/issue/KT-11740) Invert if condition intention should not remove line breaks
- [`KT-12042`](https://youtrack.jetbrains.com/issue/KT-12042) "Merge with next when" is not applicable when the statements delimited by semicolon or comment
- [`KT-12168`](https://youtrack.jetbrains.com/issue/KT-12168) "Remove explicit type specification" intention produce incompilable code in case of function type
- [`KT-14391`](https://youtrack.jetbrains.com/issue/KT-14391) RemoveUnnecessaryParenthesesIntention lost comment on closing parenthesis
- [`KT-14556`](https://youtrack.jetbrains.com/issue/KT-14556) Quickfix to suggest use of spread operator does not work with mapOf
- [`KT-15195`](https://youtrack.jetbrains.com/issue/KT-15195) Redundant parentheses shouldn't be reported if lambda is not on the same line
- [`KT-16770`](https://youtrack.jetbrains.com/issue/KT-16770) Change type of function quickfix does not propose most idiomatic solutions
- [`KT-19629`](https://youtrack.jetbrains.com/issue/KT-19629) "Convert to primary constructor" quick fix should not move  `init{...}` section down
- [`KT-20123`](https://youtrack.jetbrains.com/issue/KT-20123) Kotlin Gradle script: “Refactoring cannot be performed. Cannot modify build.gradle.kts” for some refactorings and intentions
- [`KT-20332`](https://youtrack.jetbrains.com/issue/KT-20332) Unused property declaration suppression by annotation doesn't work if annotation is targeted to getter
- [`KT-21878`](https://youtrack.jetbrains.com/issue/KT-21878) "arrayOf() call can be replaced by array litteral [...]" quick fix inserts extra parentheses
- [`KT-22092`](https://youtrack.jetbrains.com/issue/KT-22092) Intention "Specify return type explicitly": Propose types from overriden declarations
- [`KT-22615`](https://youtrack.jetbrains.com/issue/KT-22615) "Replace with" intention does not work for equal names
- [`KT-22632`](https://youtrack.jetbrains.com/issue/KT-22632) Gutter icon "go to actual declaration" is absent for enum values on actual side 
- [`KT-22741`](https://youtrack.jetbrains.com/issue/KT-22741) Wrong suggestion for `Replace 'if' expression with elvis expression`
- [`KT-22831`](https://youtrack.jetbrains.com/issue/KT-22831) Inspection for converting to elvis operator does not work for local vars
- [`KT-22860`](https://youtrack.jetbrains.com/issue/KT-22860) "Add annotation target" quick fix does not take into account existent annotations in Java source
- [`KT-22918`](https://youtrack.jetbrains.com/issue/KT-22918) Create interface quickfix is missing 'current class' container
- [`KT-23133`](https://youtrack.jetbrains.com/issue/KT-23133) "Remove redundant calls of the conversion method" wrongly shown for Boolan to Int conversion
- [`KT-23167`](https://youtrack.jetbrains.com/issue/KT-23167) Report "use expression body" also on left brace
- [`KT-23194`](https://youtrack.jetbrains.com/issue/KT-23194) Inspection "map.put() should be converted to assignment" leads to red code in case of labled return
- [`KT-23303`](https://youtrack.jetbrains.com/issue/KT-23303) "Might be const" inspection does not check explicit type specification
- [`KT-23320`](https://youtrack.jetbrains.com/issue/KT-23320) Quick fix to add constructor invocation doesn't work for sealed classes
- [`KT-23321`](https://youtrack.jetbrains.com/issue/KT-23321) Intention to move type to separate file shouldn't be available for sealed classes
- [`KT-23346`](https://youtrack.jetbrains.com/issue/KT-23346) Lift Assignment quick fix incorrectly processes block assignments
- [`KT-23377`](https://youtrack.jetbrains.com/issue/KT-23377) Simplify boolean expression produces incorrect results when mixing nullable and non-nullable variables
- [`KT-23465`](https://youtrack.jetbrains.com/issue/KT-23465) False positive `suspicious callable reference` on lambda invoke with parameters
- [`KT-23511`](https://youtrack.jetbrains.com/issue/KT-23511) "Remove parameter" quick fix makes generic function call incompilable when type could be inferred from removed parameter only
- [`KT-23513`](https://youtrack.jetbrains.com/issue/KT-23513) "Remove parameter" quick fix makes caret jump to the top of the editor
- [`KT-23559`](https://youtrack.jetbrains.com/issue/KT-23559) Wrong hint text for "assignment can be replaced with operator assignment"
- [`KT-23608`](https://youtrack.jetbrains.com/issue/KT-23608) AE “Failed to create expression from text” after applying quick fix “Convert too long character literal to string”
- [`KT-23620`](https://youtrack.jetbrains.com/issue/KT-23620)  False positive `Redundant Companion reference` on calling object from companion
- [`KT-23634`](https://youtrack.jetbrains.com/issue/KT-23634) 'Add use-site target' intention drops annotation arguments
- [`KT-23753`](https://youtrack.jetbrains.com/issue/KT-23753) "Remove variable" quick fix should not remove comment
- [`KT-23756`](https://youtrack.jetbrains.com/issue/KT-23756) Bogus "Might be const" warning in object expression
- [`KT-23778`](https://youtrack.jetbrains.com/issue/KT-23778) "Convert function to property" intention shows broken warning
- [`KT-23796`](https://youtrack.jetbrains.com/issue/KT-23796) "Create extension function/property" quick fix suggests one for nullable type while creates for not-null
- [`KT-23801`](https://youtrack.jetbrains.com/issue/KT-23801) "Convert to constructor" (IntelliJ) quick fix uses wrong use-site target for annotating properties
- [`KT-23977`](https://youtrack.jetbrains.com/issue/KT-23977) wrong hint Unit redundant
- [`KT-24066`](https://youtrack.jetbrains.com/issue/KT-24066) 'Remove redundant Unit' false positive when Unit is returned as Any
- [`KT-24165`](https://youtrack.jetbrains.com/issue/KT-24165) @Deprecated ReplaceWith Constant gets replaced with nothing
- [`KT-24207`](https://youtrack.jetbrains.com/issue/KT-24207) Add parameter intent/red bulb should use auto casted type.
- [`KT-24215`](https://youtrack.jetbrains.com/issue/KT-24215) ReplaceWith produces broken code for lambda following default parameter

#### IDE. Multiplatform

- [`KT-20406`](https://youtrack.jetbrains.com/issue/KT-20406) Overload resolution ambiguity in IDE on expect class / actual typealias from kotlin-stdlib-common / kotlin-stdlib
- [`KT-24316`](https://youtrack.jetbrains.com/issue/KT-24316) Missing dependencies in Kotlin MPP when using gradle composite builds

#### IDE. Navigation

- [`KT-7622`](https://youtrack.jetbrains.com/issue/KT-7622) Searching usages of a field/constructor parameter in a private class seems to scan through the whole project
- [`KT-23182`](https://youtrack.jetbrains.com/issue/KT-23182) Find Usages checks whether there are unused variables in functions which contain search result candidates
- [`KT-23223`](https://youtrack.jetbrains.com/issue/KT-23223) Navigate to actual declaration from actual usage

#### IDE. Refactorings

- [`KT-12078`](https://youtrack.jetbrains.com/issue/KT-12078) Introduce Variable adds explicit type when invoked on anonymous object
- [`KT-15517`](https://youtrack.jetbrains.com/issue/KT-15517) Change signature refactoring shows confusing warning dialog
- [`KT-22387`](https://youtrack.jetbrains.com/issue/KT-22387) Change signature reports "Type cannot be resolved" for class from different package
- [`KT-22669`](https://youtrack.jetbrains.com/issue/KT-22669) Refactor / Copy Kotlin source to plain text causes CCE: "PsiPlainTextFileImpl cannot be cast to KtFile" at CopyKotlinDeclarationsHandler$doCopy$2$1$1.invoke()
- [`KT-22888`](https://youtrack.jetbrains.com/issue/KT-22888) Rename completion cuts off all characters except letters from existent name
- [`KT-23298`](https://youtrack.jetbrains.com/issue/KT-23298) AE: "2 declarations in null..." on rename of a field to `object` or `class`
- [`KT-23563`](https://youtrack.jetbrains.com/issue/KT-23563) null by org.jetbrains.kotlin.idea.refactoring.rename.KotlinMemberInplaceRenameHandler$RenamerImpl exception on trying in-place Rename of non-scratch functions
- [`KT-23613`](https://youtrack.jetbrains.com/issue/KT-23613) Kotlin safe delete processor handles java code when it should not
- [`KT-23644`](https://youtrack.jetbrains.com/issue/KT-23644) Named parameters in generated Kotlin Annotations
- [`KT-23714`](https://youtrack.jetbrains.com/issue/KT-23714) Add Parameter quickfix not working when the called method is in java. 
- [`KT-23838`](https://youtrack.jetbrains.com/issue/KT-23838) Do not search for usages in other files when renaming local variable
- [`KT-24069`](https://youtrack.jetbrains.com/issue/KT-24069) 'Create from usage' doesn't use type info with smart casts

#### IDE. Scratch

- [`KT-6928`](https://youtrack.jetbrains.com/issue/KT-6928) Support Kotlin scratch files
- [`KT-23441`](https://youtrack.jetbrains.com/issue/KT-23441) Scratch options reset on IDE restart
- [`KT-23480`](https://youtrack.jetbrains.com/issue/KT-23480) java.util.NoSuchElementException: "Collection contains no element matching the predicate" on run of a scratch file with unresolved function parameter
- [`KT-23587`](https://youtrack.jetbrains.com/issue/KT-23587) Scratch: references from scratch file aren't taken into account
- [`KT-24016`](https://youtrack.jetbrains.com/issue/KT-24016) Make long scratch output lines readable
- [`KT-24315`](https://youtrack.jetbrains.com/issue/KT-24315) Checkbox labels aren't aligned in scratch panel
- [`KT-24636`](https://youtrack.jetbrains.com/issue/KT-24636) Run Scratch when there are compilation errors in module

#### Tools. J2K

- [`KT-22989`](https://youtrack.jetbrains.com/issue/KT-22989) Exception "Assertion failed: Refactorings should be invoked inside transaction"  on creating UI Component/Notification

### Libraries

- [`KT-10456`](https://youtrack.jetbrains.com/issue/KT-10456) Common Int.toString(radix: Int) method
- [`KT-22298`](https://youtrack.jetbrains.com/issue/KT-22298) Improve docs for Array.copyOf(newSize: Int)
- [`KT-22400`](https://youtrack.jetbrains.com/issue/KT-22400) coroutineContext shall be in kotlin.coroutines.experimental package
- [`KT-23356`](https://youtrack.jetbrains.com/issue/KT-23356) Cross-platform function to convert CharArray slice to String
- [`KT-23920`](https://youtrack.jetbrains.com/issue/KT-23920) CharSequence.trimEnd calls substring instead of subSequence
- [`KT-24353`](https://youtrack.jetbrains.com/issue/KT-24353) Add support for junit 5 in kotlin.test
- [`KT-24371`](https://youtrack.jetbrains.com/issue/KT-24371) Invalid @returns tag does not display in Android Studio popup properly

### Gradle plugin

- [`KT-20214`](https://youtrack.jetbrains.com/issue/KT-20214) NoClassDefFound from Gradle (should report missing tools.jar)
- [`KT-20608`](https://youtrack.jetbrains.com/issue/KT-20608) Cannot reference operator overloads across submodules (.kotlin_module not loaded when a module name has a slash)
- [`KT-22431`](https://youtrack.jetbrains.com/issue/KT-22431) Inter-project incremental compilation does not work with Android plugin 2.3+
- [`KT-22510`](https://youtrack.jetbrains.com/issue/KT-22510) Common sources aren't added when compiling custom source set with Gradle multiplatform plugin
- [`KT-22623`](https://youtrack.jetbrains.com/issue/KT-22623) Kotlin JVM tasks in independent projects are not executed in parallel with Gradle 4.2+ and Kotlin 1.2.20+
- [`KT-23092`](https://youtrack.jetbrains.com/issue/KT-23092) Gradle plugin for MPP common modules should not remove the 'compileJava' task from `project.tasks`
- [`KT-23574`](https://youtrack.jetbrains.com/issue/KT-23574) 'archivesBaseName' does not affect module name in common modules
- [`KT-23719`](https://youtrack.jetbrains.com/issue/KT-23719) Incorrect Gradle Warning for expectedBy in kotlin-platform-android module
- [`KT-23878`](https://youtrack.jetbrains.com/issue/KT-23878) Kapt: Annotation processors are run when formatting is changed
- [`KT-24420`](https://youtrack.jetbrains.com/issue/KT-24420) Kapt plugin: Kapt task has overlapping outputs (and inputs) with Gradle's JavaCompile task
- [`KT-24440`](https://youtrack.jetbrains.com/issue/KT-24440) Gradle daemon OOM due to function descriptors stuck forever

### Tools. kapt

- [`KT-23286`](https://youtrack.jetbrains.com/issue/KT-23286) kapt + nonascii = weird pathes
- [`KT-23427`](https://youtrack.jetbrains.com/issue/KT-23427) kapt: for element with multiple annotations,  annotation values erroneously use default when first annotation uses default
- [`KT-23721`](https://youtrack.jetbrains.com/issue/KT-23721) Warning informing user that 'tools.jar' is absent in the plugin classpath is not show when there is also an error
- [`KT-23898`](https://youtrack.jetbrains.com/issue/KT-23898) Kapt: Do now show a warning for APs from 'annotationProcessor' configuration also declared in 'kapt' configuration
- [`KT-23964`](https://youtrack.jetbrains.com/issue/KT-23964) Kotlin Gradle plugin does not define inputs and outputs of annotation processors

## 1.2.41

### Compiler – Fixes
- [`KT-23901`](https://youtrack.jetbrains.com/issue/KT-23901) Incremental compilation fails on Java 9
- [`KT-23931`](https://youtrack.jetbrains.com/issue/KT-23931) Exception on optimizing eternal loops
- [`KT-23900`](https://youtrack.jetbrains.com/issue/KT-23900) Exception on some cases with nested arrays
- [`KT-23809`](https://youtrack.jetbrains.com/issue/KT-23809) Exception on processing complex hierarchies with `suspend` functions when `-Xdump-declarations-to` is active

### Other
- [`KT-23973`](https://youtrack.jetbrains.com/issue/KT-23973) New compiler behavior lead to ambiguous mappings in Spring Boot temporarily reverted

## 1.2.40

### Compiler

#### New Features

- [`KT-22703`](https://youtrack.jetbrains.com/issue/KT-22703) Allow expect/actual annotation constructors to have default values
- [`KT-19159`](https://youtrack.jetbrains.com/issue/KT-19159) Support `crossinline` lambda parameters of `suspend` function type
- [`KT-21913`](https://youtrack.jetbrains.com/issue/KT-21913) Support default arguments for expected declarations
- [`KT-19120`](https://youtrack.jetbrains.com/issue/KT-19120) Provide extra compiler arguments in `ScriptTemplateDefinition`
- [`KT-19415`](https://youtrack.jetbrains.com/issue/KT-19415) Introduce `@JvmDefault` annotation
- [`KT-21515`](https://youtrack.jetbrains.com/issue/KT-21515) Restrict visibility of classifiers inside `companion object`s

#### Performance Improvements

- [`KT-10057`](https://youtrack.jetbrains.com/issue/KT-10057) Use `lcmp` instruction instead of `kotlin/jvm/internal/Intrinsics.compare`
- [`KT-14258`](https://youtrack.jetbrains.com/issue/KT-14258) Suboptimal codegen for private fieldaccess to private field in companion object
- [`KT-18731`](https://youtrack.jetbrains.com/issue/KT-18731) `==` between enums should use reference equality, not `Intrinsics.areEqual()`.
- [`KT-22714`](https://youtrack.jetbrains.com/issue/KT-22714) Unnecessary checkcast to array of object from an array of specific type
- [`KT-5177`](https://youtrack.jetbrains.com/issue/KT-5177) Optimize code generation for `for` loop with `withIndex()`
- [`KT-19477`](https://youtrack.jetbrains.com/issue/KT-19477) Allow to implement several common modules with a single platform module
- [`KT-21347`](https://youtrack.jetbrains.com/issue/KT-21347) Add compiler warning about using kotlin-stdlib-jre7 or kotlin-stdlib-jre8 artifacts

#### Fixes

- [`KT-16424`](https://youtrack.jetbrains.com/issue/KT-16424) Broken bytecode for nullable generic methods
- [`KT-17171`](https://youtrack.jetbrains.com/issue/KT-17171) `ClassCastException` in case of SAM conversion with `out` variance
- [`KT-19399`](https://youtrack.jetbrains.com/issue/KT-19399) Incorrect bytecode generated for inline functions in some complex cases
- [`KT-21696`](https://youtrack.jetbrains.com/issue/KT-21696) Incorrect warning for use-site target on extension function
- [`KT-22031`](https://youtrack.jetbrains.com/issue/KT-22031) Non-`abstract` expect classes should not have `abstract` members
- [`KT-22260`](https://youtrack.jetbrains.com/issue/KT-22260) Never flag `inline suspend fun` with `NOTHING_TO_INLINE`
- [`KT-22352`](https://youtrack.jetbrains.com/issue/KT-22352) Expect/actual checker can't handle properties and functions with the same name
- [`KT-22652`](https://youtrack.jetbrains.com/issue/KT-22652) Interface with default overrides is not perceived as a SAM
- [`KT-22904`](https://youtrack.jetbrains.com/issue/KT-22904) Incorrect bytecode generated for withIndex iteration on `Array<Int>`
- [`KT-22906`](https://youtrack.jetbrains.com/issue/KT-22906) Invalid class name generated for lambda created from method reference in anonymous object
- [`KT-23044`](https://youtrack.jetbrains.com/issue/KT-23044) Overriden public property with internal setter cannot be found in runtime
- [`KT-23104`](https://youtrack.jetbrains.com/issue/KT-23104) Incorrect code generated for LHS of an intrinsified `in` operator in case of generic type substituted with `Character`
- [`KT-23309`](https://youtrack.jetbrains.com/issue/KT-23309) Minor spelling errors in JVM internal error messages
- [`KT-22001`](https://youtrack.jetbrains.com/issue/KT-22001) JS: compiler crashes on += with "complex" receiver
- [`KT-23239`](https://youtrack.jetbrains.com/issue/KT-23239) JS: Default arguments for non-final member function support is missing for MPP
- [`KT-17091`](https://youtrack.jetbrains.com/issue/KT-17091) Converting to SAM Java type appends non-deterministic hash to class name
- [`KT-21521`](https://youtrack.jetbrains.com/issue/KT-21521) Compilation exception when trying to compile a `suspend` function with `tailrec` keyword
- [`KT-21605`](https://youtrack.jetbrains.com/issue/KT-21605) Cross-inlined coroutine with captured outer receiver creates unverifiable code
- [`KT-21864`](https://youtrack.jetbrains.com/issue/KT-21864) Expect-actual matcher doesn't consider generic upper bounds
- [`KT-21906`](https://youtrack.jetbrains.com/issue/KT-21906) `ACTUAL_MISSING` is reported for actual constructor of non-actual class
- [`KT-21939`](https://youtrack.jetbrains.com/issue/KT-21939) Improve `ACTUAL_MISSING` diagnostics message
- [`KT-22513`](https://youtrack.jetbrains.com/issue/KT-22513) Flaky "JarURLConnection.getUseCaches" NPE during compilation when using compiler plugins

### Libraries

- [`KT-11208`](https://youtrack.jetbrains.com/issue/KT-11208) `readLine()` shouldn't use buffered reader

### IDE

#### New Features

- [`KT-10368`](https://youtrack.jetbrains.com/issue/KT-10368) Run Action for Kotlin Scratch Files
- [`KT-16892`](https://youtrack.jetbrains.com/issue/KT-16892) Shortcut to navigate between header and impl
- [`KT-23005`](https://youtrack.jetbrains.com/issue/KT-23005) Support `prefix`/`suffix` attributes for language injection in Kotlin with annotations and comments

#### Performance Improvements

- [`KT-19484`](https://youtrack.jetbrains.com/issue/KT-19484) KotlinBinaryClassCache retains a lot of memory
- [`KT-23183`](https://youtrack.jetbrains.com/issue/KT-23183) `ConfigureKotlinNotification.getNotificationString()` scans modules with Kotlin files twice
- [`KT-23380`](https://youtrack.jetbrains.com/issue/KT-23380) Improve IDE performance when working with Spring projects

#### Fixes

- [`KT-15482`](https://youtrack.jetbrains.com/issue/KT-15482) `KotlinNullPointerException` in IDE from expected class with nested class
- [`KT-15739`](https://youtrack.jetbrains.com/issue/KT-15739) Internal visibility across common and platform-dependent modules
- [`KT-19025`](https://youtrack.jetbrains.com/issue/KT-19025) Not imported `build.gradle.kts` is all red
- [`KT-19165`](https://youtrack.jetbrains.com/issue/KT-19165) IntelliJ should suggest to reload Gradle projects when `build.gradle.kts` changes
- [`KT-20282`](https://youtrack.jetbrains.com/issue/KT-20282) 'Move statement up' works incorrectly for statement after `finally` block if `try` block contains closure
- [`KT-20521`](https://youtrack.jetbrains.com/issue/KT-20521) Kotlin Gradle script: valid `build.gradle.kts` is red and becomes normal only after reopening the project
- [`KT-20592`](https://youtrack.jetbrains.com/issue/KT-20592) `KotlinNullPointerException`: nested class inside expect / actual interface
- [`KT-21013`](https://youtrack.jetbrains.com/issue/KT-21013) "Move statement up/down" fails for multiline declarations
- [`KT-21420`](https://youtrack.jetbrains.com/issue/KT-21420) `.gradle.kts` editor should do no semantic highlighting until the first successful dependency resolver response
- [`KT-21683`](https://youtrack.jetbrains.com/issue/KT-21683) Language injection: JPAQL. Injection should be present for "query" parameter of `@NamedNativeQueries`
- [`KT-21745`](https://youtrack.jetbrains.com/issue/KT-21745) Warning and quickfix about kotlin-stdlib-jre7/8 -> kotlin-stdlib-jdk7/8 in Maven
- [`KT-21746`](https://youtrack.jetbrains.com/issue/KT-21746) Warning and quickfix about kotlin-stdlib-jre7/8 -> kotlin-stdlib-jdk7/8 in Gradle
- [`KT-21753`](https://youtrack.jetbrains.com/issue/KT-21753) Language injection: SpEL. Not injected for key in `@Caching`
- [`KT-21771`](https://youtrack.jetbrains.com/issue/KT-21771) All annotations in `Annotations.kt` from kotlin-test-js module wrongly have ACTUAL_MISSING
- [`KT-21831`](https://youtrack.jetbrains.com/issue/KT-21831) Opening class from `kotlin-stdlib-jdk8.jar` fails with EE: "Stub list in ... length differs from PSI"
- [`KT-22229`](https://youtrack.jetbrains.com/issue/KT-22229) Kotlin local delegated property Import auto-removed with "Java: Optimize imports on the fly"
- [`KT-22724`](https://youtrack.jetbrains.com/issue/KT-22724) ISE: "psiFile must not be null" at `KotlinNodeJsRunConfigurationProducer.setupConfigurationFromContext()`
- [`KT-22817`](https://youtrack.jetbrains.com/issue/KT-22817) Hitting 'Propagate Parameters' in Change Signature throws `UnsupportedOperationException` 
- [`KT-22851`](https://youtrack.jetbrains.com/issue/KT-22851) Apply button is always active on Kotlin compiler settings tab
- [`KT-22858`](https://youtrack.jetbrains.com/issue/KT-22858) Multiplatform: String constructor parameter is reported in Java file of jvm module on creation of a new instance of a class from common module
- [`KT-22865`](https://youtrack.jetbrains.com/issue/KT-22865) Support multiple expectedBy dependencies when importing project from Gradle or Maven
- [`KT-22873`](https://youtrack.jetbrains.com/issue/KT-22873) Common module-based light classes do not see JDK
- [`KT-22874`](https://youtrack.jetbrains.com/issue/KT-22874) Exception on surround with "if else" when resulting if should be wrapped with `()`
- [`KT-22925`](https://youtrack.jetbrains.com/issue/KT-22925) Unable to view Type Hierarchy from constructor call in expression
- [`KT-22926`](https://youtrack.jetbrains.com/issue/KT-22926) Confusing behavior of Type Hierarchy depending on the caret position at superclass constructor
- [`KT-23097`](https://youtrack.jetbrains.com/issue/KT-23097) Enhance multiplatform project wizard
- [`KT-23271`](https://youtrack.jetbrains.com/issue/KT-23271) Warn about using kotlin-stdlib-jre* libs in `dependencyManagement` section in Maven with `eap` and `dev` Kotlin versions
- [`KT-20672`](https://youtrack.jetbrains.com/issue/KT-20672) IDE can't resolve references to elements from files with `@JvmPackageName`
- [`KT-23546`](https://youtrack.jetbrains.com/issue/KT-23546) Variable name auto-completion popup gets in the way
- [`KT-23546`](https://youtrack.jetbrains.com/issue/KT-23546) Do not show duplicated names in variables completion list
- [`KT-19120`](https://youtrack.jetbrains.com/issue/KT-19120) Use script compiler options on script dependencies in the IDE as well

### IDE. Gradle. Script

- [`KT-23228`](https://youtrack.jetbrains.com/issue/KT-23228) Do not highlight `.gradle.kts` files in non-Gradle projects

### IDE. Inspections and Intentions

#### New Features

- [`KT-16382`](https://youtrack.jetbrains.com/issue/KT-16382) Intention to convert `expr.unsafeCast<Type>()` to `expr as Type` and vice versa
- [`KT-20439`](https://youtrack.jetbrains.com/issue/KT-20439) Intentions to add/remove labeled return to last expression in a lambda
- [`KT-22011`](https://youtrack.jetbrains.com/issue/KT-22011) Inspection to report the usage of Java Collections methods on immutable Kotlin Collections 
- [`KT-22933`](https://youtrack.jetbrains.com/issue/KT-22933) Intention/inspection to convert Pair constructor to `to` function
- [`KT-19871`](https://youtrack.jetbrains.com/issue/KT-19871) Intentions for specifying use-site targets for an annotation
- [`KT-22971`](https://youtrack.jetbrains.com/issue/KT-22971) Inspection to highlight and remove unnecessary explicit companion object references

#### Fixes

- [`KT-12226`](https://youtrack.jetbrains.com/issue/KT-12226) "Convert concatenation to template" does not process `$` sign as a Char
- [`KT-15858`](https://youtrack.jetbrains.com/issue/KT-15858) "Replace with a `foreach` function call" intention breaks code
- [`KT-16332`](https://youtrack.jetbrains.com/issue/KT-16332) Add braces to 'if' statement intention does not put end-of-line comment properly into braces
- [`KT-17058`](https://youtrack.jetbrains.com/issue/KT-17058) "Create implementations from headers": each implementation gets own file
- [`KT-17306`](https://youtrack.jetbrains.com/issue/KT-17306) Don't report package name mismatch if there's no Java code in the module
- [`KT-19730`](https://youtrack.jetbrains.com/issue/KT-19730) Quickfix for delegated properties boilerplate generation doesn't work on locals
- [`KT-21005`](https://youtrack.jetbrains.com/issue/KT-21005) "Missing KDoc inspection" is broken
- [`KT-21082`](https://youtrack.jetbrains.com/issue/KT-21082) "Create actual declaration" of top-level subclass of expected `sealed class` in the same file as actual declaration of sealed class present
- [`KT-22110`](https://youtrack.jetbrains.com/issue/KT-22110) "Can be joined with assignment" inspection underlining extends into comment
- [`KT-22329`](https://youtrack.jetbrains.com/issue/KT-22329) "Create class" quickfix is not suggested in `when` branch
- [`KT-22428`](https://youtrack.jetbrains.com/issue/KT-22428) Create member function from usage shouldn't present type parameters as options
- [`KT-22492`](https://youtrack.jetbrains.com/issue/KT-22492) "Specify explicit lambda signature" intention is available only on lambda braces
- [`KT-22719`](https://youtrack.jetbrains.com/issue/KT-22719) Incorrect warning 'Redundant semicolon' when having method call before lambda expression
- [`KT-22861`](https://youtrack.jetbrains.com/issue/KT-22861) "Add annotation target" quickfix is not available on annotation with use site target
- [`KT-22862`](https://youtrack.jetbrains.com/issue/KT-22862) "Add annotation target" quickfix does not process existent annotations with use site target
- [`KT-22917`](https://youtrack.jetbrains.com/issue/KT-22917) Update order of containers for `create class` quickfix 
- [`KT-22949`](https://youtrack.jetbrains.com/issue/KT-22949) NPE on conversion of `run`/`apply` with explicit lambda signature to `let`/`also`
- [`KT-22950`](https://youtrack.jetbrains.com/issue/KT-22950) Convert stdlib extension function to scoping function works incorrectly in case of explicit lambda signature
- [`KT-22954`](https://youtrack.jetbrains.com/issue/KT-22954) "Sort modifiers" quickfix works incorrectly when method is annotated
- [`KT-22970`](https://youtrack.jetbrains.com/issue/KT-22970) Add explicit this intention/inspection missing for lambda invocation
- [`KT-23109`](https://youtrack.jetbrains.com/issue/KT-23109) "Remove redundant 'if' statement" inspection breaks code with labeled return 
- [`KT-23215`](https://youtrack.jetbrains.com/issue/KT-23215) "Add function to supertype" quickfix works incorrectly
- [`KT-14270`](https://youtrack.jetbrains.com/issue/KT-14270) Intentions "Add/Remove braces" should be applied to the statement where caret is if there several nested statements one into another
- [`KT-21743`](https://youtrack.jetbrains.com/issue/KT-21743) Method reference not correctly moved into parentheses
- [`KT-23045`](https://youtrack.jetbrains.com/issue/KT-23045) AE “Failed to create expression from text” on concatenating string with broken quote mark char literal
- [`KT-23046`](https://youtrack.jetbrains.com/issue/KT-23046) CCE ”KtBinaryExpression cannot be cast to KtStringTemplateExpression” on concatenating broken quote mark char literal with string
- [`KT-23227`](https://youtrack.jetbrains.com/issue/KT-23227) "Add annotation target" quickfix is not suggested for `field:` use-site target

### IDE. Refactorings

#### Fixes

- [`KT-13255`](https://youtrack.jetbrains.com/issue/KT-13255) Refactor / Rename: renaming local variable or class to existing name gives no warning
- [`KT-13284`](https://youtrack.jetbrains.com/issue/KT-13284) Refactor / Rename: superfluous imports and FQNs in Java using `@JvmOverloads` functions
- [`KT-13907`](https://youtrack.jetbrains.com/issue/KT-13907) Rename refactoring warns about name conflict if there is function with different signature but the same name
- [`KT-13986`](https://youtrack.jetbrains.com/issue/KT-13986) Full qualified names of classes in comments should be changed after class Move, if comment contains backquotes
- [`KT-14671`](https://youtrack.jetbrains.com/issue/KT-14671) `typealias`: refactor/rename should propose to rename occurrences in comments
- [`KT-15039`](https://youtrack.jetbrains.com/issue/KT-15039) Extra usage is found for a parameter in data class in destructuring construction
- [`KT-15228`](https://youtrack.jetbrains.com/issue/KT-15228) Extract function from inline function should create public function
- [`KT-15302`](https://youtrack.jetbrains.com/issue/KT-15302) Reference to typealias in SAM conversion is not found
- [`KT-16510`](https://youtrack.jetbrains.com/issue/KT-16510) Can't rename quoted identifier `is`
- [`KT-17827`](https://youtrack.jetbrains.com/issue/KT-17827) Refactor / Move corrupts bound references when containing class of member element is changed
- [`KT-19561`](https://youtrack.jetbrains.com/issue/KT-19561) Name conflict warning when renaming method to a name matching an extension method with the same name exists
- [`KT-20178`](https://youtrack.jetbrains.com/issue/KT-20178) Refactor → Rename can't make companion object name empty
- [`KT-22282`](https://youtrack.jetbrains.com/issue/KT-22282) Moving a Kotlin file to another package does not change imports in itself
- [`KT-22482`](https://youtrack.jetbrains.com/issue/KT-22482) Rename refactoring insert qualifier for non related property call
- [`KT-22661`](https://youtrack.jetbrains.com/issue/KT-22661) Refactor/Move: top level field reference is not imported automatically after move to the source root
- [`KT-22678`](https://youtrack.jetbrains.com/issue/KT-22678) Refactor / Copy: "Class uses constructor which will be inaccessible after move" when derived class has a protected constructor
- [`KT-22692`](https://youtrack.jetbrains.com/issue/KT-22692) Refactor/Move: unnecessary curly braces added on moving to a separate file a top level function with a top level field usage
- [`KT-22745`](https://youtrack.jetbrains.com/issue/KT-22745) Refactor/Move inserts FQ function name at the call site if there is a field same named as the function
- [`KT-22747`](https://youtrack.jetbrains.com/issue/KT-22747) Moving top-level function to a different (existing) file doesn't update references from Java
- [`KT-22751`](https://youtrack.jetbrains.com/issue/KT-22751) Refactor/Rename: type alias name clash is not reported
- [`KT-22769`](https://youtrack.jetbrains.com/issue/KT-22769) Refactor/Move: there is no warning on moving sealed class or its inheritors to another file
- [`KT-22771`](https://youtrack.jetbrains.com/issue/KT-22771) Refactor/Move: there is no warning on moving nested class to another class with stricter visibility
- [`KT-22812`](https://youtrack.jetbrains.com/issue/KT-22812) Refactor/Rename extension functions incorrectly conflicts with other extension functions
- [`KT-23065`](https://youtrack.jetbrains.com/issue/KT-23065) Refactor/Move: Specify the warning message on moving sealed class inheritors without moving the sealed class itself

### IDE. Script

- [`KT-22647`](https://youtrack.jetbrains.com/issue/KT-22647) Run script Action in IDE should use Kotlin compiler from the IDE plugin
- [`KT-18930`](https://youtrack.jetbrains.com/issue/KT-18930) IDEA is unstable With Gradle Kotlin DSL
- [`KT-21042`](https://youtrack.jetbrains.com/issue/KT-21042) Gradle Script Kotlin project is full-red
- [`KT-11618`](https://youtrack.jetbrains.com/issue/KT-11618) Running .kts file from IntelliJ IDEA doesn't allow to import classes in other files which are also part of the project


### IDE. Debugger

- [`KT-22205`](https://youtrack.jetbrains.com/issue/KT-22205) Breakpoints won't work for Kotlin testing with JUnit

### JavaScript

- [`KT-22019`](https://youtrack.jetbrains.com/issue/KT-22019) Fix wrong list sorting order

### Tools. CLI

- [`KT-22777`](https://youtrack.jetbrains.com/issue/KT-22777) Unstable language version setting has no effect when attached runtime has lower version

### Tools. Gradle

- [`KT-22824`](https://youtrack.jetbrains.com/issue/KT-22824) `expectedBy` dependency should be expressed as `compile` dependency in POM
- [`KT-15371`](https://youtrack.jetbrains.com/issue/KT-15371) Multiplatform: setting free compiler args can break build
- [`KT-22864`](https://youtrack.jetbrains.com/issue/KT-22864) Allow multiple expectedBy configuration dependencies in Gradle
- [`KT-22895`](https://youtrack.jetbrains.com/issue/KT-22895) 'kotlin-runtime' library is missing in the compiler classpath sometimes
- [`KT-23085`](https://youtrack.jetbrains.com/issue/KT-23085) Use proper names for the Gradle task inputs/outputs added at runtime
- [`KT-23694`](https://youtrack.jetbrains.com/issue/KT-23694) Fix parallel build in Kotlin IC – invalid KotlinCoreEnvironment disposal

### Tools. Android
- Android Extensions: Support fragments from kotlinx package;

### Tools. Incremental Compile

- [`KT-20516`](https://youtrack.jetbrains.com/issue/KT-20516) "Unresolved reference" when project declares same class as its dependency
- [`KT-22542`](https://youtrack.jetbrains.com/issue/KT-22542) "Source file or directory not found" for incremental compilation with Kobalt
- [`KT-23165`](https://youtrack.jetbrains.com/issue/KT-23165) Incremental compilation is sometimes broken after moving one class

### Tools. JPS

- [`KT-16091`](https://youtrack.jetbrains.com/issue/KT-16091) Incremental compilation ignores changes in Java static field
- [`KT-22995`](https://youtrack.jetbrains.com/issue/KT-22995) EA-91869 - NA: `LookupStorage.<init>`

### Tools. kapt

- [`KT-21735`](https://youtrack.jetbrains.com/issue/KT-21735) Kapt cache was not cleared sometimes

### Tools. REPL

- [`KT-21611`](https://youtrack.jetbrains.com/issue/KT-21611) REPL: Empty lines should be ignored

## 1.2.30

### Android

- [`KT-19300`](https://youtrack.jetbrains.com/issue/KT-19300) [AS3.0] Android extensions, Parcelable: editor shows warning about incomplete implementation on a class with Parcelize annotation
- [`KT-22168`](https://youtrack.jetbrains.com/issue/KT-22168) "Kotlin Android | Illegal Android Identifier" inspection reports non-instrumentation unit tests
- [`KT-22700`](https://youtrack.jetbrains.com/issue/KT-22700) Android Extensions bind views with dot in ID

### Compiler

#### New Features

- [`KT-17336`](https://youtrack.jetbrains.com/issue/KT-17336) Introduce suspendCoroutineUninterceptedOrReturn coroutine intrinsic function
- [`KT-22766`](https://youtrack.jetbrains.com/issue/KT-22766) Imitate "suspend" modifier in 1.2.x by stdlib function

#### Performance Improvements

- [`KT-16880`](https://youtrack.jetbrains.com/issue/KT-16880) Smarter detection of tail-suspending unit invocations
#### Fixes

- [`KT-10494`](https://youtrack.jetbrains.com/issue/KT-10494) IAE in CheckMethodAdapter.checkInternalName when declaring classes inside method with non-standard name
- [`KT-16079`](https://youtrack.jetbrains.com/issue/KT-16079) Internal error when using suspend operator plus
- [`KT-18522`](https://youtrack.jetbrains.com/issue/KT-18522) Internal compiler error with IndexOutOfBoundsException, "Exception while analyzing expression"
- [`KT-18578`](https://youtrack.jetbrains.com/issue/KT-18578) Compilation failure with @JsonInclude and default interface method
- [`KT-19786`](https://youtrack.jetbrains.com/issue/KT-19786) Kotlin — unable to override a Java function with @Nullable vararg argument
- [`KT-20466`](https://youtrack.jetbrains.com/issue/KT-20466) JSR305 false positive for elvis operator
- [`KT-20705`](https://youtrack.jetbrains.com/issue/KT-20705) Tail suspend call optimization doesn't work in when block
- [`KT-20708`](https://youtrack.jetbrains.com/issue/KT-20708) Tail suspend call optiomization doesn't work in some branches
- [`KT-20855`](https://youtrack.jetbrains.com/issue/KT-20855) Unnecessary safe-call reported on nullable type
- [`KT-21165`](https://youtrack.jetbrains.com/issue/KT-21165) Exception from suspending function is not caught
- [`KT-21238`](https://youtrack.jetbrains.com/issue/KT-21238) Nonsensical warning "Expected type does not accept nulls in Java, but the value may be null in Kotlin"
- [`KT-21258`](https://youtrack.jetbrains.com/issue/KT-21258) Raw backing field value exposed via accessors?
- [`KT-21303`](https://youtrack.jetbrains.com/issue/KT-21303) Running on JDK-10-ea-31 leads to ArrayIndexOutOfBoundsException
- [`KT-21642`](https://youtrack.jetbrains.com/issue/KT-21642) Back-end (JVM) Internal error: Couldn't transform method node on using `open` keyword with `suspend` for a top-level function
- [`KT-21759`](https://youtrack.jetbrains.com/issue/KT-21759) Compiler crashes on two subsequent return statements in suspend function
- [`KT-22029`](https://youtrack.jetbrains.com/issue/KT-22029) Fold list to pair with destructuring assignment and inner when results in Exception
- [`KT-22345`](https://youtrack.jetbrains.com/issue/KT-22345) OOM in ReturnUnitMethodReplacer
- [`KT-22410`](https://youtrack.jetbrains.com/issue/KT-22410) invalid compiler optimization for nullable cast to reified type
- [`KT-22577`](https://youtrack.jetbrains.com/issue/KT-22577) Compiler crashes when coroutineContext is used inside of inlined lambda

### IDE

#### New Features

- [`KT-8352`](https://youtrack.jetbrains.com/issue/KT-8352) Pasting Kotlin code into package could create .kt file
- [`KT-16710`](https://youtrack.jetbrains.com/issue/KT-16710) Run configuration to run main() as a Node CLI app
- [`KT-16833`](https://youtrack.jetbrains.com/issue/KT-16833) Allow mixing Java and Kotlin code in "Analyze Data Flow..."
- [`KT-21531`](https://youtrack.jetbrains.com/issue/KT-21531) JS: add support for running specific test from the gutter icon with Jest testing framework
#### Performance Improvements

- [`KT-21450`](https://youtrack.jetbrains.com/issue/KT-21450) Add caching for Module.languageVersionSettings
- [`KT-21517`](https://youtrack.jetbrains.com/issue/KT-21517) OOME during find usages
#### Fixes

- [`KT-7316`](https://youtrack.jetbrains.com/issue/KT-7316) Go to declaration in Kotlin JavaScript project navigates to JDK source in some cases
- [`KT-8563`](https://youtrack.jetbrains.com/issue/KT-8563) Refactor / Rename inserts line breaks without reason
- [`KT-11467`](https://youtrack.jetbrains.com/issue/KT-11467) Editor: `var` property in primary constructor is shown not underscored, same as `val`
- [`KT-13509`](https://youtrack.jetbrains.com/issue/KT-13509) Don't show run line markers for top-level functions annotated with @Test
- [`KT-13971`](https://youtrack.jetbrains.com/issue/KT-13971) Kotlin Bytecode tool window: Decompile is available for incompilable code, CE at MemberCodegen.genFunctionOrProperty()
- [`KT-15000`](https://youtrack.jetbrains.com/issue/KT-15000) Do not spell check overridden declaration names
- [`KT-15331`](https://youtrack.jetbrains.com/issue/KT-15331) "Kotlin not configured" notification always shown for common module in multiplatform project
- [`KT-16333`](https://youtrack.jetbrains.com/issue/KT-16333) Cannot navigate to super declaration via shortcut
- [`KT-16976`](https://youtrack.jetbrains.com/issue/KT-16976) Introduce special SDK for Kotlin JS projects to avoid using JDK
- [`KT-18445`](https://youtrack.jetbrains.com/issue/KT-18445) multiplatform project: provide more comfortable way to process cases when there are missed method implemenation in the implementation class
- [`KT-19194`](https://youtrack.jetbrains.com/issue/KT-19194) Some Live Templates should probably be enabled also for "expressions" not only "statements"
- [`KT-20281`](https://youtrack.jetbrains.com/issue/KT-20281) multiplatform:Unresolved service JavaDescriptorResolver on a file with several header declarations and gutters not shown
- [`KT-20470`](https://youtrack.jetbrains.com/issue/KT-20470) IntelliJ indent guide/invisible brace matching hint tooltip doesn't show context
- [`KT-20522`](https://youtrack.jetbrains.com/issue/KT-20522) Add "Build" action in "Before launch" block when create new JS run configuration (for test)
- [`KT-20915`](https://youtrack.jetbrains.com/issue/KT-20915) Add quickfix for ‘Implicit (unsafe) cast from dynamic type’
- [`KT-20971`](https://youtrack.jetbrains.com/issue/KT-20971) Cannot navigate to sources of compiled common dependency
- [`KT-21115`](https://youtrack.jetbrains.com/issue/KT-21115) Incomplete actual class should still have navigation icon to expect class
- [`KT-21688`](https://youtrack.jetbrains.com/issue/KT-21688) UIdentifier violates JvmDeclarationElement contract
- [`KT-21874`](https://youtrack.jetbrains.com/issue/KT-21874) Unexpected IDE error "Unknown type [typealias ...]"
- [`KT-21958`](https://youtrack.jetbrains.com/issue/KT-21958) Support "Alternative source available" for Kotlin files
- [`KT-21994`](https://youtrack.jetbrains.com/issue/KT-21994) Collapsed comments containing `*` get removed in the summary line.
- [`KT-22179`](https://youtrack.jetbrains.com/issue/KT-22179) For properties overridden in object literals, navigation to inherited properties is missing indication of a type they are overridden
- [`KT-22214`](https://youtrack.jetbrains.com/issue/KT-22214) Front-end Internal error: Failed to analyze declaration
- [`KT-22230`](https://youtrack.jetbrains.com/issue/KT-22230) Reformatting code to Kotlin style indents top-level typealiases with comments
- [`KT-22242`](https://youtrack.jetbrains.com/issue/KT-22242) Semantic highlighting uses different colors for the same 'it' variable and same color for different 'it's
- [`KT-22301`](https://youtrack.jetbrains.com/issue/KT-22301) Don't require space after label for lambda
- [`KT-22346`](https://youtrack.jetbrains.com/issue/KT-22346) Incorrect indentation for chained context extension functions (lambdas) when using Kotlin style guide
- [`KT-22356`](https://youtrack.jetbrains.com/issue/KT-22356) Update status of inspection "Kotlin JVM compiler configured but no stdlib dependency" after pom file update, not on re-import
- [`KT-22360`](https://youtrack.jetbrains.com/issue/KT-22360) MPP: with "Create separate module per source set" = No `expectedBy` dependency is imported not transitively
- [`KT-22374`](https://youtrack.jetbrains.com/issue/KT-22374) "Join lines" works incorrectly in case of line containing more than one string literal
- [`KT-22473`](https://youtrack.jetbrains.com/issue/KT-22473) Regression in IntelliJ Kotlin Plugin 1.2.20, settings.gradle.kts script template is wrong
- [`KT-22508`](https://youtrack.jetbrains.com/issue/KT-22508) Auto-formatting should insert an indentation for default parameter values
- [`KT-22514`](https://youtrack.jetbrains.com/issue/KT-22514) IDE Freeze related to IdeAllOpenDeclarationAttributeAltererExtension.getAnnotationFqNames()
- [`KT-22557`](https://youtrack.jetbrains.com/issue/KT-22557) Dead 'Apply' button, when setting code style
- [`KT-22565`](https://youtrack.jetbrains.com/issue/KT-22565) Cant do `PsiAnchor.create` on annotation in annotation
- [`KT-22570`](https://youtrack.jetbrains.com/issue/KT-22570) Can't add import in "Packages to Use Import with '*'" section on "Import" tab in Code Style -> Kotlin
- [`KT-22593`](https://youtrack.jetbrains.com/issue/KT-22593) AE when invoking find usages on constructor in decompiled java file
- [`KT-22641`](https://youtrack.jetbrains.com/issue/KT-22641) Auto-formatting adds extra indent to a closing square bracket on a separate line
- [`KT-22734`](https://youtrack.jetbrains.com/issue/KT-22734) LinkageError: "loader constraint violation: when resolving method PsiTreeUtilKt.parentOfType()" at KotlinConverter.convertPsiElement$uast_kotlin()

### IDE. Debugger

- [`KT-20351`](https://youtrack.jetbrains.com/issue/KT-20351) Stepping over a line with two inline stdlib functions steps into the second function
- [`KT-21312`](https://youtrack.jetbrains.com/issue/KT-21312) Confusing Kotlin (JavaScript) run configuration
- [`KT-21945`](https://youtrack.jetbrains.com/issue/KT-21945) Double stop on same line during step over if inline call is present
- [`KT-22967`](https://youtrack.jetbrains.com/issue/KT-22967) Debugger: Evaluator fails on evaluating huge lambdas on Android

### IDE. Inspections and Intentions

#### New Features

- [`KT-18124`](https://youtrack.jetbrains.com/issue/KT-18124) Inspection to get rid of unnecessary ticks in references
- [`KT-22038`](https://youtrack.jetbrains.com/issue/KT-22038) Inspection to replace the usage of Java Collections methods on subtypes of MutableList with the methods from Kotlin stdlib
- [`KT-22152`](https://youtrack.jetbrains.com/issue/KT-22152) "Create Class" quickfix should support creating the class in a new file and selecting the package for that file
- [`KT-22171`](https://youtrack.jetbrains.com/issue/KT-22171) Add Intention for single character substring
- [`KT-22303`](https://youtrack.jetbrains.com/issue/KT-22303) Inspection to detect `Type!.inlineWithNotNullReceiver()` calls
- [`KT-22409`](https://youtrack.jetbrains.com/issue/KT-22409) Intention for changing property setter accessibility
#### Performance Improvements

- [`KT-21137`](https://youtrack.jetbrains.com/issue/KT-21137) Kotlin instantiates something expensive via reflection when highlighting Java file
#### Fixes

- [`KT-15176`](https://youtrack.jetbrains.com/issue/KT-15176) Remove "Create type alias" intention when called on java class
- [`KT-18007`](https://youtrack.jetbrains.com/issue/KT-18007) Inspection doesn't suggest Maven Plugin for kotlin-stdlib-jre8
- [`KT-18308`](https://youtrack.jetbrains.com/issue/KT-18308) 'Remove braces from else statement' intention breaks code
- [`KT-18912`](https://youtrack.jetbrains.com/issue/KT-18912) multiplatform project: Convert to enum class: header sealed class cannot convert nested objects to enum values
- [`KT-21114`](https://youtrack.jetbrains.com/issue/KT-21114) IOE: create actual members for expected with companion
- [`KT-21600`](https://youtrack.jetbrains.com/issue/KT-21600) `suspend` modifier should go after `override` in overridden suspend functions
- [`KT-21881`](https://youtrack.jetbrains.com/issue/KT-21881) Replace "If" with safe access intention false positive
- [`KT-22054`](https://youtrack.jetbrains.com/issue/KT-22054) Replace '!=' with 'contentEquals' should be replace '==' with 'contentEquals'
- [`KT-22097`](https://youtrack.jetbrains.com/issue/KT-22097) Redundant Unit inspection false positive for single expression function
- [`KT-22159`](https://youtrack.jetbrains.com/issue/KT-22159) "Replace return with 'if' expression" should not place return before expressions of type Nothing
- [`KT-22167`](https://youtrack.jetbrains.com/issue/KT-22167) "Add annotation target" quick fix does nothing and disappears from menu
- [`KT-22221`](https://youtrack.jetbrains.com/issue/KT-22221) QuickFix to remove unused constructor parameters shouldn't delete parenthesis
- [`KT-22335`](https://youtrack.jetbrains.com/issue/KT-22335) IOE from KotlinUnusedImportInspection.scheduleOptimizeImportsOnTheFly
- [`KT-22339`](https://youtrack.jetbrains.com/issue/KT-22339) Remove setter parameter type: error while creating problem descriptor
- [`KT-22364`](https://youtrack.jetbrains.com/issue/KT-22364) Redundant setter is not reported for overridden fields
- [`KT-22484`](https://youtrack.jetbrains.com/issue/KT-22484) The warning highlight for redundant `!is`check for object types isn't extended to the full operator
- [`KT-22538`](https://youtrack.jetbrains.com/issue/KT-22538) "Redundant type checks for object" inspection application breaks smart cast for an object's field or function

### IDE. Refactorings

#### New Features

- [`KT-17047`](https://youtrack.jetbrains.com/issue/KT-17047) Refactorings for related standard "scoping functions" conversion: 'let' <-> 'run', 'apply' <-> 'also'
#### Fixes

- [`KT-12365`](https://youtrack.jetbrains.com/issue/KT-12365) Renaming `invoke` function should remove `operator` modifier and insert function call for implicit usages
- [`KT-17977`](https://youtrack.jetbrains.com/issue/KT-17977) Move class to upper level creates file with wrong file name
- [`KT-21719`](https://youtrack.jetbrains.com/issue/KT-21719) Actual typealias not renamed on expected declaration rename
- [`KT-22200`](https://youtrack.jetbrains.com/issue/KT-22200) Overriden function generated from completion is missing suspend modifier
- [`KT-22359`](https://youtrack.jetbrains.com/issue/KT-22359) Refactor / Rename file: Throwable at RenameProcessor.performRefactoring()
- [`KT-22461`](https://youtrack.jetbrains.com/issue/KT-22461) Rename doesn't work on private top-level members of multi-file parts
- [`KT-22476`](https://youtrack.jetbrains.com/issue/KT-22476) Rename `it` parameter fails after replacing for-each with mapNotNull
- [`KT-22564`](https://youtrack.jetbrains.com/issue/KT-22564) Rename doesn't warn for conflicts
- [`KT-22705`](https://youtrack.jetbrains.com/issue/KT-22705) Refactor/Rename: rename of `invoke` function with lambda parameter to `get` breaks an implicit call
- [`KT-22708`](https://youtrack.jetbrains.com/issue/KT-22708) Refactor/Rename function using some stdlib name leads to incompilable code

### JavaScript

- [`KT-20735`](https://youtrack.jetbrains.com/issue/KT-20735) JS: kotlin.test-js integration tests terminate build on failure
- [`KT-22638`](https://youtrack.jetbrains.com/issue/KT-22638) Function reference not working in js from extension
- [`KT-22963`](https://youtrack.jetbrains.com/issue/KT-22963) KotlinJS - When statement can cause illegal break

### Libraries

- [`KT-22620`](https://youtrack.jetbrains.com/issue/KT-22620) Add support for TestNG in kotlin.test
- [`KT-16661`](https://youtrack.jetbrains.com/issue/KT-16661) Performance overhead in string splitting in Kotlin versus Java?
- [`KT-22042`](https://youtrack.jetbrains.com/issue/KT-22042) Suboptimal `Strings#findAnyOf`
- [`KT-21154`](https://youtrack.jetbrains.com/issue/KT-21154) kotlin-test-junit doesn't provide JUnitAsserter when test body is run in another thread

### Tools

- [`KT-22196`](https://youtrack.jetbrains.com/issue/KT-22196) kotlin-compiler-embeddable bundles outdated kotlinx.coroutines since 1.1.60
- [`KT-22549`](https://youtrack.jetbrains.com/issue/KT-22549) Service is dying during compilation

### Tools. CLI

- [`KT-19051`](https://youtrack.jetbrains.com/issue/KT-19051) Suppress Java 9 illegal access warnings

### Tools. Gradle

- [`KT-18462`](https://youtrack.jetbrains.com/issue/KT-18462) Add 'org.jetbrains.kotlin.platform.android' plugin.
- [`KT-18821`](https://youtrack.jetbrains.com/issue/KT-18821) Gradle plugin should not resolve dependencies at configuration time

### Tools. Maven

- [`KT-21581`](https://youtrack.jetbrains.com/issue/KT-21581) kotlin.compiler.incremental not copying resources

### Tools. Incremental Compile

- [`KT-22192`](https://youtrack.jetbrains.com/issue/KT-22192) Make precise java classes tracking in Gradle enabled by default

### Tools. J2K

- [`KT-21635`](https://youtrack.jetbrains.com/issue/KT-21635) J2K: create "inspection based post-processing"

### Tools. REPL

- [`KT-12037`](https://youtrack.jetbrains.com/issue/KT-12037) REPL crashes when trying to :load with incorrect filename

### Tools. kapt

- [`KT-22350`](https://youtrack.jetbrains.com/issue/KT-22350) kdoc comment preceding enum method causes compilation failure
- [`KT-22386`](https://youtrack.jetbrains.com/issue/KT-22386) kapt3 fails when project has class named System
- [`KT-22468`](https://youtrack.jetbrains.com/issue/KT-22468) Kapt fails to convert array type to anonymous array element type
- [`KT-22469`](https://youtrack.jetbrains.com/issue/KT-22469) Kapt 1.2.20+ may fail to process classes with KDoc
- [`KT-22493`](https://youtrack.jetbrains.com/issue/KT-22493) Kapt: NoSuchElementException in KotlinCliJavaFileManagerImpl if class first character is dollar sign
- [`KT-22582`](https://youtrack.jetbrains.com/issue/KT-22582) Kapt: Enums inside enum values should be forbidden
- [`KT-22711`](https://youtrack.jetbrains.com/issue/KT-22711) Deprecate original kapt (aka kapt1)

## 1.2.21

### Fixes

- [`KT-22349`](https://youtrack.jetbrains.com/issue/KT-22349) Android: creating new Basic activity fails with Throwable: "Inconsistent FILE tree in SingleRootFileViewProvider" at SingleRootFileViewProvider.checkLengthConsistency()
- [`KT-22459`](https://youtrack.jetbrains.com/issue/KT-22459) Remove .proto files from kotlin-reflect.jar

## 1.2.20

### Android

- [`KT-20085`](https://youtrack.jetbrains.com/issue/KT-20085) Android Extensions: ClassCastException after changing type of view in layout XML
- [`KT-20235`](https://youtrack.jetbrains.com/issue/KT-20235) Error, can't use plugin kotlin-android-extensions
- [`KT-20269`](https://youtrack.jetbrains.com/issue/KT-20269) Mark 'kapt.kotlin.generated' as a source root automatically in Android projects
- [`KT-20545`](https://youtrack.jetbrains.com/issue/KT-20545) Parcelable: Migrate to canonical NEW-DUP-INVOKESPECIAL form
- [`KT-20742`](https://youtrack.jetbrains.com/issue/KT-20742) @Serializable and @Parcelize do not work together
- [`KT-20928`](https://youtrack.jetbrains.com/issue/KT-20928) @Parcelize. Verify Error for Android Api 19

### Binary Metadata

- [`KT-11586`](https://youtrack.jetbrains.com/issue/KT-11586) Support class literal annotation arguments in AnnotationSerializer

### Compiler

#### New Features

- [`KT-17944`](https://youtrack.jetbrains.com/issue/KT-17944) Allow 'expect' final member be implemented by 'actual' open member
- [`KT-21982`](https://youtrack.jetbrains.com/issue/KT-21982) Recognize Checker Framework *declaration* annotations
- [`KT-17609`](https://youtrack.jetbrains.com/issue/KT-17609) Intrinsic suspend val coroutineContext
#### Performance Improvements

- [`KT-21322`](https://youtrack.jetbrains.com/issue/KT-21322) for-in-char-sequence loop improvements
- [`KT-21323`](https://youtrack.jetbrains.com/issue/KT-21323) Decreasing range loop improvements
#### Fixes

- [`KT-4174`](https://youtrack.jetbrains.com/issue/KT-4174) Verify error on lambda with closure in local class super call
- [`KT-10473`](https://youtrack.jetbrains.com/issue/KT-10473) Inapplicable diagnostics for mixed JS / JVM projects
- [`KT-12541`](https://youtrack.jetbrains.com/issue/KT-12541) VerifyError: Bad type on operand stack for local variable captured in local class
- [`KT-13454`](https://youtrack.jetbrains.com/issue/KT-13454) VerifyError on capture of outer class properties in closure inside inner class constructor
- [`KT-14148`](https://youtrack.jetbrains.com/issue/KT-14148) `VerifyError: Bad type on operand stack`  for anonymous type inheriting inner class
- [`KT-18254`](https://youtrack.jetbrains.com/issue/KT-18254) enumValueOf and enumValues throw UnsupportedOperationException when used within a non-inline function block
- [`KT-18514`](https://youtrack.jetbrains.com/issue/KT-18514) IllegalStateException on compile object that inherits its inner interface or class
- [`KT-18639`](https://youtrack.jetbrains.com/issue/KT-18639) VerifyError: Bad type on operand stack
- [`KT-19188`](https://youtrack.jetbrains.com/issue/KT-19188) Nondeterministic method order in class files using DefaultImpls
- [`KT-19827`](https://youtrack.jetbrains.com/issue/KT-19827) Strange VerifyError in simple Example
- [`KT-19928`](https://youtrack.jetbrains.com/issue/KT-19928) Analyze / Inspect Code: ISE "Concrete fake override public final fun <get-allowedTargets>()" at BridgesKt.findConcreteSuperDeclaration()
- [`KT-20433`](https://youtrack.jetbrains.com/issue/KT-20433) NPE during JVM code generation
- [`KT-20639`](https://youtrack.jetbrains.com/issue/KT-20639) Obsolete term "native" used in error message
- [`KT-20802`](https://youtrack.jetbrains.com/issue/KT-20802) USELESS_CAST diagnostic in functions with expression body
- [`KT-20873`](https://youtrack.jetbrains.com/issue/KT-20873) False CAST_NEVER_SUCCEEDS when upcasting Nothing
- [`KT-20903`](https://youtrack.jetbrains.com/issue/KT-20903) Method reference to expect function results in bogus resolution ambiguity
- [`KT-21105`](https://youtrack.jetbrains.com/issue/KT-21105) Compiler incorrectly optimize the operator `in`  with a floating point type range with NaN bound.
- [`KT-21146`](https://youtrack.jetbrains.com/issue/KT-21146) ArrayIndexOutOfBoundsException at org.jetbrains.kotlin.codegen.MemberCodegen.generateMethodCallTo(MemberCodegen.java:841)
- [`KT-21267`](https://youtrack.jetbrains.com/issue/KT-21267) Report pre-release errors if pre-release compiler is run with a release language version
- [`KT-21321`](https://youtrack.jetbrains.com/issue/KT-21321) for-in-array loop improvements
- [`KT-21343`](https://youtrack.jetbrains.com/issue/KT-21343) Compound assignment operator compiles incorrectly when LHS is a property imported from object
- [`KT-21354`](https://youtrack.jetbrains.com/issue/KT-21354) Inconsistent behavior of 'for-in-range' loop if range is an array variable modified in loop body
- [`KT-21532`](https://youtrack.jetbrains.com/issue/KT-21532) Enum constructor not found
- [`KT-21535`](https://youtrack.jetbrains.com/issue/KT-21535) SAM wrapper is not created for a value of functional type in delegating or super constructor call in secondary constructor
- [`KT-21671`](https://youtrack.jetbrains.com/issue/KT-21671) Inline sam wrapper during inline in another module
- [`KT-21919`](https://youtrack.jetbrains.com/issue/KT-21919) Invalid MethodParameters attribute generated for "$DefaultImpls" synthetic class with javaParameters=true
- [`KT-20429`](https://youtrack.jetbrains.com/issue/KT-20429) False-positive 'Unused return value of a function with lambda expression body' in enum constant constructor
- [`KT-21827`](https://youtrack.jetbrains.com/issue/KT-21827) SMAP problem during default lambda parameter inline

### IDE

#### New Features

- [`KT-4001`](https://youtrack.jetbrains.com/issue/KT-4001) Allow to set arguments indent to 1 tab (currently two and not customized)
- [`KT-13378`](https://youtrack.jetbrains.com/issue/KT-13378) Provide ability to configure highlighting for !! in expressions and ? in types
- [`KT-17928`](https://youtrack.jetbrains.com/issue/KT-17928) Support code folding for primary constructors
- [`KT-20591`](https://youtrack.jetbrains.com/issue/KT-20591) Show @StringRes/@IntegerRes annotations in parameter info
- [`KT-20952`](https://youtrack.jetbrains.com/issue/KT-20952) "Navigate | Related symbol" should support expect/actual navigation
- [`KT-21229`](https://youtrack.jetbrains.com/issue/KT-21229) Make it possible to explicitly select "latest" language/API version
- [`KT-21469`](https://youtrack.jetbrains.com/issue/KT-21469) Wrap property initializers after equals sign
- [`KT-14670`](https://youtrack.jetbrains.com/issue/KT-14670) Support kotlinPackageName() macro in live templates
- [`KT-14951`](https://youtrack.jetbrains.com/issue/KT-14951) Editor: navigate actions could be available in intention menu (as done in Java)
- [`KT-15320`](https://youtrack.jetbrains.com/issue/KT-15320) Live templates: Add function which returns the "outer" class name
- [`KT-20067`](https://youtrack.jetbrains.com/issue/KT-20067) Return label hints
- [`KT-20533`](https://youtrack.jetbrains.com/issue/KT-20533) Show "this" and "it" type hints in lambdas.
- [`KT-20614`](https://youtrack.jetbrains.com/issue/KT-20614) Change location of initial parameter type hint when parameters are on multiple lines
- [`KT-21949`](https://youtrack.jetbrains.com/issue/KT-21949) Please add a separate Color Scheme settings for properties synthesized from Java accessors
- [`KT-21974`](https://youtrack.jetbrains.com/issue/KT-21974) Editor color scheme option for Kotlin typealias names
#### Performance Improvements

- [`KT-17367`](https://youtrack.jetbrains.com/issue/KT-17367) Rebuild requested for index KotlinJavaScriptMetaFileIndex 
- [`KT-21632`](https://youtrack.jetbrains.com/issue/KT-21632) Freezing on typing
- [`KT-21701`](https://youtrack.jetbrains.com/issue/KT-21701) IDEA 2017.3 high CPU usage
#### Fixes

- [`KT-9562`](https://youtrack.jetbrains.com/issue/KT-9562) Wrong indent after Enter after an annotation
- [`KT-12176`](https://youtrack.jetbrains.com/issue/KT-12176) Formatter could reformat long primary constructors
- [`KT-12862`](https://youtrack.jetbrains.com/issue/KT-12862) Formatting: Weird wrapping setting for long ?: operator
- [`KT-15099`](https://youtrack.jetbrains.com/issue/KT-15099) Odd code formatting when chaining lambdas and splitting lines on operators
- [`KT-15254`](https://youtrack.jetbrains.com/issue/KT-15254) Use Platform icons for "Run" icon in gutter
- [`KT-17254`](https://youtrack.jetbrains.com/issue/KT-17254) Remove obsolete unfold-icons in structure view 
- [`KT-17838`](https://youtrack.jetbrains.com/issue/KT-17838) Can't report exceptions from the Kotlin plugin 1.1.4-dev-119 in IDEA #IU-171.4424.37
- [`KT-17843`](https://youtrack.jetbrains.com/issue/KT-17843) Don't show parameter name hints when calling Java methods with unknown parameter names
- [`KT-17964`](https://youtrack.jetbrains.com/issue/KT-17964) Local variable type hints in editor for anonymous object
- [`KT-17965`](https://youtrack.jetbrains.com/issue/KT-17965) Do not shown argument name hints for assert
- [`KT-18829`](https://youtrack.jetbrains.com/issue/KT-18829) Do not show parameter name hints for mapOf
- [`KT-18839`](https://youtrack.jetbrains.com/issue/KT-18839) Semantic highlighting not work for local variables in init
- [`KT-19012`](https://youtrack.jetbrains.com/issue/KT-19012) Data Flow from here: doesn't find template usages
- [`KT-19017`](https://youtrack.jetbrains.com/issue/KT-19017) Data Flow from here doesn't find usage in range position of for cycle
- [`KT-19018`](https://youtrack.jetbrains.com/issue/KT-19018) Data Flow from here doesn't find any usages of for-variable
- [`KT-19036`](https://youtrack.jetbrains.com/issue/KT-19036) Data Flow from here: please find calls of extension too
- [`KT-19039`](https://youtrack.jetbrains.com/issue/KT-19039) Data Flow from here: please find cases when an investigated variable is transferred as a parameter into a library function
- [`KT-19087`](https://youtrack.jetbrains.com/issue/KT-19087) Data flow to here: usages with explicit receiver are not found
- [`KT-19089`](https://youtrack.jetbrains.com/issue/KT-19089) Data Flow to here: assigned values are not found if an investigated property is a delegated one
- [`KT-19104`](https://youtrack.jetbrains.com/issue/KT-19104) Data Flow from here: usage of parameter or variable not found when used as lambda receiver/parameter
- [`KT-19106`](https://youtrack.jetbrains.com/issue/KT-19106) Data Flow from here: show point of call of a function used as a parameter investigated parameter/variable
- [`KT-19112`](https://youtrack.jetbrains.com/issue/KT-19112) Data Flow to here for a function (or its return value) doesn't find shorten forms of assignments
- [`KT-19519`](https://youtrack.jetbrains.com/issue/KT-19519) Structure view is not updated properly for function classes
- [`KT-19727`](https://youtrack.jetbrains.com/issue/KT-19727) Code style: New line after '(' with anonymous object or multi-line lambda unexpected behavior
- [`KT-19820`](https://youtrack.jetbrains.com/issue/KT-19820) Strange highlightning for enum constructor
- [`KT-19823`](https://youtrack.jetbrains.com/issue/KT-19823) Kotlin Gradle project import into IntelliJ: import kapt generated classes into classpath
- [`KT-19824`](https://youtrack.jetbrains.com/issue/KT-19824) Please provide a separate icon for a common library
- [`KT-19915`](https://youtrack.jetbrains.com/issue/KT-19915) TODO calls not blue highlighted in lambdas/DSLs
- [`KT-20096`](https://youtrack.jetbrains.com/issue/KT-20096) Kotlin Gradle script: SOE after beginning of Pair definition before some script section
- [`KT-20314`](https://youtrack.jetbrains.com/issue/KT-20314) Kotlin formatter does not respect annotations code style settings
- [`KT-20329`](https://youtrack.jetbrains.com/issue/KT-20329) Multiplatform: gutter "Is subclassed by" should show expect subclass from the common module
- [`KT-20380`](https://youtrack.jetbrains.com/issue/KT-20380) Configure Kotlin plugin updates dialog does not open without opened project
- [`KT-20521`](https://youtrack.jetbrains.com/issue/KT-20521) Kotlin Gradle script: valid build.gradle.kts is red and becomes normal only after reopening the project
- [`KT-20603`](https://youtrack.jetbrains.com/issue/KT-20603) Facet import: when API version > language version, set API version = language version, not to 1.0
- [`KT-20782`](https://youtrack.jetbrains.com/issue/KT-20782) Non-atomic trees update
- [`KT-20813`](https://youtrack.jetbrains.com/issue/KT-20813) SAM with receiver: call with SAM usage is compiled with Gradle, but not with JPS
- [`KT-20880`](https://youtrack.jetbrains.com/issue/KT-20880) Add documentation quick fix should create multiline comment and place caret in right place
- [`KT-20883`](https://youtrack.jetbrains.com/issue/KT-20883) Provide more information in "Missing documentation" inspection message
- [`KT-20884`](https://youtrack.jetbrains.com/issue/KT-20884) Functions with receivers should allow [this] in KDoc
- [`KT-20937`](https://youtrack.jetbrains.com/issue/KT-20937) Exception thrown on RMB click on folder in Kotlin project
- [`KT-20938`](https://youtrack.jetbrains.com/issue/KT-20938) IDE: kotlinc.xml with KotlinCommonCompilerArguments/freeArgs: XSE: "Cannot deserialize class CommonCompilerArguments$DummyImpl" at BaseKotlinCompilerSettings.loadState()
- [`KT-20953`](https://youtrack.jetbrains.com/issue/KT-20953) "Choose actual" popup shows redundant information
- [`KT-20985`](https://youtrack.jetbrains.com/issue/KT-20985) Additional reimport is required in 2017.3/2018.1 idea after creating or importing mp project
- [`KT-20987`](https://youtrack.jetbrains.com/issue/KT-20987) (PerModulePackageCache miss) ISE: diagnoseMissingPackageFragment
- [`KT-21002`](https://youtrack.jetbrains.com/issue/KT-21002) "Highlight usages of identifier under caret" should work for "it"
- [`KT-21076`](https://youtrack.jetbrains.com/issue/KT-21076) Recursive Companion.ivoke() call should be marked with according icon
- [`KT-21132`](https://youtrack.jetbrains.com/issue/KT-21132) containsKey() in SoftValueMap considered pointless
- [`KT-21150`](https://youtrack.jetbrains.com/issue/KT-21150) Do not infer compiler version from build.txt
- [`KT-21200`](https://youtrack.jetbrains.com/issue/KT-21200) Improve Structure-view for Kotlin files
- [`KT-21214`](https://youtrack.jetbrains.com/issue/KT-21214) Fix funcion selection in kotlin
- [`KT-21275`](https://youtrack.jetbrains.com/issue/KT-21275) Don't show argument name hints in calls of methods on 'dynamic' type
- [`KT-21318`](https://youtrack.jetbrains.com/issue/KT-21318) Highlighting of function exit points does not work if the function is a getter for property
- [`KT-21363`](https://youtrack.jetbrains.com/issue/KT-21363) IDE: kotlinc.xml with KotlinCommonCompilerArguments: build fails with UOE: "Operation is not supported for read-only collection" at EmptyList.clear()
- [`KT-21409`](https://youtrack.jetbrains.com/issue/KT-21409) UAST: Super-call arguments are not modeled/visited
- [`KT-21418`](https://youtrack.jetbrains.com/issue/KT-21418) Gradle based project in IDEA 181: Kotlin facets are not created
- [`KT-21441`](https://youtrack.jetbrains.com/issue/KT-21441) Folding multiline strings adds a space at the start if there is not one.
- [`KT-21546`](https://youtrack.jetbrains.com/issue/KT-21546) java.lang.IllegalArgumentException: Unexpected container fatal IDE error
- [`KT-21575`](https://youtrack.jetbrains.com/issue/KT-21575) Secondary constructor call body is missing
- [`KT-21645`](https://youtrack.jetbrains.com/issue/KT-21645) Weird parameter hint position
- [`KT-21733`](https://youtrack.jetbrains.com/issue/KT-21733) Structure view is not updated
- [`KT-21756`](https://youtrack.jetbrains.com/issue/KT-21756) Find Usages for "type" in ts2kt provokes exception
- [`KT-21770`](https://youtrack.jetbrains.com/issue/KT-21770) Pasting $this into an interpolated string shouldn't escape $
- [`KT-21833`](https://youtrack.jetbrains.com/issue/KT-21833) Type hints shown when destructing triple with type parameters
- [`KT-21852`](https://youtrack.jetbrains.com/issue/KT-21852) Custom API version is lost when settings are reopen after restarting IDE
- [`KT-11503`](https://youtrack.jetbrains.com/issue/KT-11503) cmd+shift+enter action in .kt files does not work on empty lines
- [`KT-17217`](https://youtrack.jetbrains.com/issue/KT-17217) Navigate to symbol: hard to choose between a lot of extension overloads
- [`KT-18674`](https://youtrack.jetbrains.com/issue/KT-18674) Join Lines should join strings
- [`KT-19524`](https://youtrack.jetbrains.com/issue/KT-19524) "Local variable type hints" should respect static imports
- [`KT-21010`](https://youtrack.jetbrains.com/issue/KT-21010) Gutter "Is subclassed by" should show actual subclass from the all platform modules in IDEA 2017.3/2018.1
- [`KT-21036`](https://youtrack.jetbrains.com/issue/KT-21036) Throwable “Access is allowed from event dispatch thread only.” after creating nine similar classes with functions.
- [`KT-21213`](https://youtrack.jetbrains.com/issue/KT-21213) Multiline kdoc - intellij joins lines together without space
- [`KT-21592`](https://youtrack.jetbrains.com/issue/KT-21592) <args>-Xjsr305=strict</args> not taken into account during the kotlin files compilation in Idea (maven)
- [`KT-22050`](https://youtrack.jetbrains.com/issue/KT-22050) Redundant parameter type hint on SAM
- [`KT-22071`](https://youtrack.jetbrains.com/issue/KT-22071) Formatter insists on increasing indentation in forEach lambda
- [`KT-22093`](https://youtrack.jetbrains.com/issue/KT-22093) Unnecessary line wrap with new Kotlin code style
- [`KT-22111`](https://youtrack.jetbrains.com/issue/KT-22111) Error while indexing PsiPlainTextFileImpl cannot be cast to KtFile
- [`KT-22121`](https://youtrack.jetbrains.com/issue/KT-22121) Enter in empty argument list should apply normal indent if "Continuation indent for argument list" is off
- [`KT-21702`](https://youtrack.jetbrains.com/issue/KT-21702) `KtLightAnnotation` can't be converted to UAST
- [`KT-19900`](https://youtrack.jetbrains.com/issue/KT-19900) IntelliJ does not recognise no-arg "invokeInitializers" set in pom.xml
### IDE. Completion

- [`KT-13220`](https://youtrack.jetbrains.com/issue/KT-13220) Completion for non-primary-constructor properties should suggest names with types instead of types
- [`KT-12797`](https://youtrack.jetbrains.com/issue/KT-12797) Code completion does not work for inner in base class
- [`KT-16402`](https://youtrack.jetbrains.com/issue/KT-16402) AssertionError on completing expression after template in string literal
- [`KT-20166`](https://youtrack.jetbrains.com/issue/KT-20166) Completion: property declaration completion should be greedy if `tab` pressed
- [`KT-20506`](https://youtrack.jetbrains.com/issue/KT-20506) Second smart completion suggests the same value recursively

### IDE. Debugger

- [`KT-17514`](https://youtrack.jetbrains.com/issue/KT-17514) Debugger, evaluate value: cannot find local variable error on attempt to evaluate outer variable
- [`KT-20962`](https://youtrack.jetbrains.com/issue/KT-20962) NullPointerException because of nullable location in debugger
- [`KT-21538`](https://youtrack.jetbrains.com/issue/KT-21538) "Step into" method doesn't work after adding lambda parameter to the call
- [`KT-21820`](https://youtrack.jetbrains.com/issue/KT-21820) Debugger: Evaluation fails for instance properties (older Android SDKs)

### IDE. Inspections and Intentions

#### New Features

- [`KT-4580`](https://youtrack.jetbrains.com/issue/KT-4580) Intention + inspection to convert between explicit and implicit 'this'
- [`KT-11023`](https://youtrack.jetbrains.com/issue/KT-11023) Inspection to highlight usages of Collections.sort() and replace them with .sort() method from Kotlin stdlib
- [`KT-13702`](https://youtrack.jetbrains.com/issue/KT-13702) Issue a warning when equals is called recursively within itself
- [`KT-18449`](https://youtrack.jetbrains.com/issue/KT-18449) Multiplatform project: provide a quick fix "Implement methods" for a impl class
- [`KT-18828`](https://youtrack.jetbrains.com/issue/KT-18828) Provide an intention action to move a companion object member to top level
- [`KT-19103`](https://youtrack.jetbrains.com/issue/KT-19103) Inspection to remove unnecessary suspend modifier
- [`KT-20484`](https://youtrack.jetbrains.com/issue/KT-20484) Add quick fix to add required target to annotation used on a type
- [`KT-20492`](https://youtrack.jetbrains.com/issue/KT-20492) Offer "Simplify" intention for 'when' expression where only one branch is known to be true
- [`KT-20615`](https://youtrack.jetbrains.com/issue/KT-20615) Inspection to detect usages of values incorrectly marked by Kotlin as const from Java code
- [`KT-20631`](https://youtrack.jetbrains.com/issue/KT-20631) Inspection to detect use of Unit as a standalone expression
- [`KT-20644`](https://youtrack.jetbrains.com/issue/KT-20644) Warning for missing const paired with val modifier for primitives and strings
- [`KT-20714`](https://youtrack.jetbrains.com/issue/KT-20714) Inspection for self-assigment of properties
- [`KT-21023`](https://youtrack.jetbrains.com/issue/KT-21023) Inspection to highlight variables / functions with implicit `Nothing?` type
- [`KT-21510`](https://youtrack.jetbrains.com/issue/KT-21510) Add inspection to add/remove this to/from bound callable
- [`KT-21560`](https://youtrack.jetbrains.com/issue/KT-21560) Inspection to sort modifiers
- [`KT-21573`](https://youtrack.jetbrains.com/issue/KT-21573) Code Style Inspection: `to -> Pair` function used not in infix form 
- [`KT-16260`](https://youtrack.jetbrains.com/issue/KT-16260) Add intention to specify all types explicitly in destructuring assignment
- [`KT-21547`](https://youtrack.jetbrains.com/issue/KT-21547) Allow separate regex for test class and function names in IDE inspection
- [`KT-21741`](https://youtrack.jetbrains.com/issue/KT-21741) Inspection to detect is checks for object types
- [`KT-21950`](https://youtrack.jetbrains.com/issue/KT-21950) Enable quick-fixes for annotator-reported problems in "Inspect Code"
- [`KT-22103`](https://youtrack.jetbrains.com/issue/KT-22103) SortModifiersInspection should report annotations after modifiers
#### Fixes

- [`KT-15941`](https://youtrack.jetbrains.com/issue/KT-15941) "Convert to secondary constructor" produces invalid code for generic property with default value
- [`KT-16340`](https://youtrack.jetbrains.com/issue/KT-16340) "Unused receiver parameter" for invoke operator on companion object
- [`KT-17161`](https://youtrack.jetbrains.com/issue/KT-17161) IDE suggest to replace a for loop with `forEach` to aggresively
- [`KT-17332`](https://youtrack.jetbrains.com/issue/KT-17332) Intention to replace forEach with a 'for' loop should convert return@forEach to continue
- [`KT-17730`](https://youtrack.jetbrains.com/issue/KT-17730) Incorrect suggestion to replace loop with negation to `any{}`
- [`KT-18816`](https://youtrack.jetbrains.com/issue/KT-18816) IDEA suggests replacing for-in-range with stdlib operations
- [`KT-18881`](https://youtrack.jetbrains.com/issue/KT-18881) Invalid "Loop can be replaced with stdlib operations" warning when class has `add()` function
- [`KT-19560`](https://youtrack.jetbrains.com/issue/KT-19560) Do not warn about receiver parameter not used for companion object
- [`KT-19977`](https://youtrack.jetbrains.com/issue/KT-19977) Convert Lambda to reference produces red code when wrong implicit receiver is in scope
- [`KT-20091`](https://youtrack.jetbrains.com/issue/KT-20091) "Convert object literal to class" should create inner class if necessary
- [`KT-20300`](https://youtrack.jetbrains.com/issue/KT-20300) "Variable can be inlined" should not be suggested if there's a variable with the same name in nested scope
- [`KT-20349`](https://youtrack.jetbrains.com/issue/KT-20349) Convert lambda to reference for trailing lambda inserts parameter names for all arguments if at least one named argument was passed
- [`KT-20435`](https://youtrack.jetbrains.com/issue/KT-20435) False "function is never used" warning
- [`KT-20622`](https://youtrack.jetbrains.com/issue/KT-20622) Don't propose “Remove explicit type specification” when it can change semantic?
- [`KT-20763`](https://youtrack.jetbrains.com/issue/KT-20763) Wrong resulting code for "add star projection" quick-fix for inner class with generic outer one
- [`KT-20887`](https://youtrack.jetbrains.com/issue/KT-20887) Missing documentation warning shouldn't be triggered for a member of a private class
- [`KT-20888`](https://youtrack.jetbrains.com/issue/KT-20888) Documentation should be inherited from Map.Entry type
- [`KT-20889`](https://youtrack.jetbrains.com/issue/KT-20889) Members of anonymous objects should be treated as private and not trigger "Missing documentation" warning
- [`KT-20894`](https://youtrack.jetbrains.com/issue/KT-20894) "Add type" quick fix does not take into account `vararg` modifier
- [`KT-20901`](https://youtrack.jetbrains.com/issue/KT-20901) IntelliJ autocorrect to add parameter to data class constructor should make the parameter a val
- [`KT-20981`](https://youtrack.jetbrains.com/issue/KT-20981) False positive for "redundant super" in data class
- [`KT-21025`](https://youtrack.jetbrains.com/issue/KT-21025) Kotlin UAST violates `JvmDeclarationUElement` contract by employing `JavaUAnnotation`
- [`KT-21061`](https://youtrack.jetbrains.com/issue/KT-21061) Cant work with UElement.kt in IDEA with 1.2.0-rc-39: "Stub index points to a file without PSI"
- [`KT-21104`](https://youtrack.jetbrains.com/issue/KT-21104) Do not propose to make local lateinit var immutable
- [`KT-21122`](https://youtrack.jetbrains.com/issue/KT-21122) QuickFix to create member for expect class shouldn't add body
- [`KT-21159`](https://youtrack.jetbrains.com/issue/KT-21159) Fix signature invoked from Java breaks Kotlin code
- [`KT-21179`](https://youtrack.jetbrains.com/issue/KT-21179) Remove empty class body on companion object breaks code
- [`KT-21192`](https://youtrack.jetbrains.com/issue/KT-21192) Confusing "unused expression"
- [`KT-21237`](https://youtrack.jetbrains.com/issue/KT-21237) ReplaceWith incorrectly removes property assignment
- [`KT-21332`](https://youtrack.jetbrains.com/issue/KT-21332) Create from usage: do not propose to create abstract function in non-abstract class
- [`KT-21373`](https://youtrack.jetbrains.com/issue/KT-21373) 'Remove redundant let' quickfix does not work with `in`
- [`KT-21497`](https://youtrack.jetbrains.com/issue/KT-21497) Inspection considers if block to be a lambda
- [`KT-21544`](https://youtrack.jetbrains.com/issue/KT-21544) "Add type" quick fix incorrectly processes `vararg` modifier with primitive type array initializer
- [`KT-21603`](https://youtrack.jetbrains.com/issue/KT-21603) "Join declaration and assignment" should remove 'lateinit' for 'var'
- [`KT-21612`](https://youtrack.jetbrains.com/issue/KT-21612) The "Remove redundant getter" inspection removes the type specifier
- [`KT-21698`](https://youtrack.jetbrains.com/issue/KT-21698) `Create interface` shouldn't suggest to declare it inside a class which implements it
- [`KT-21726`](https://youtrack.jetbrains.com/issue/KT-21726) "arrayOf can be replaced with literal" inspection quick fix produces incompilable result in presence of spread operator
- [`KT-21727`](https://youtrack.jetbrains.com/issue/KT-21727) "Redundant spread operator" inspection does not report array literal
- [`KT-12814`](https://youtrack.jetbrains.com/issue/KT-12814) Specify type explicitly produces erroneous code when platform type overrides not-null type
- [`KT-15180`](https://youtrack.jetbrains.com/issue/KT-15180) Incorrect quickfix 'Specify type explicitly'
- [`KT-17816`](https://youtrack.jetbrains.com/issue/KT-17816) "Replace elvis with if" produce nasty code when safe casts are involved
- [`KT-18396`](https://youtrack.jetbrains.com/issue/KT-18396) Bad quickfix for wrong nested classes in inner class
- [`KT-19073`](https://youtrack.jetbrains.com/issue/KT-19073) No-op quick fix for "Convert lambda to reference" IDE suggestion 
- [`KT-19283`](https://youtrack.jetbrains.com/issue/KT-19283) Kotlin KProperty reference cannot be converted to lambda
- [`KT-19736`](https://youtrack.jetbrains.com/issue/KT-19736) Rephrase text in the unconventional property name inspection
- [`KT-19771`](https://youtrack.jetbrains.com/issue/KT-19771) Preserve old "Convert to expression body" range
- [`KT-20437`](https://youtrack.jetbrains.com/issue/KT-20437) Naming convetions inspection: Add separate inspection for top-level and object properties
- [`KT-20620`](https://youtrack.jetbrains.com/issue/KT-20620) Replace operator with function call breaks code
- [`KT-21414`](https://youtrack.jetbrains.com/issue/KT-21414) OverridersSearch attempts to create nameless fake light method
- [`KT-21780`](https://youtrack.jetbrains.com/issue/KT-21780) Wrong redundant setter inspection
- [`KT-21837`](https://youtrack.jetbrains.com/issue/KT-21837) Don't require documentation on tests and test classes
- [`KT-21929`](https://youtrack.jetbrains.com/issue/KT-21929) Inappropriate quick fix for a sealed class instantiation 
- [`KT-21983`](https://youtrack.jetbrains.com/issue/KT-21983) Do not suggest to remove explicit Unit type for expression body
- [`KT-16619`](https://youtrack.jetbrains.com/issue/KT-16619) Incorrect 'accessing non-final property in constructor' warning

### IDE. Refactorings

#### New Features

- [`KT-20095`](https://youtrack.jetbrains.com/issue/KT-20095) Allow conversion of selected companion methods to methods with @JvmStatic
#### Fixes

- [`KT-15840`](https://youtrack.jetbrains.com/issue/KT-15840) Introduce type alias: don't change not-nullable type with nullable typealias
- [`KT-17212`](https://youtrack.jetbrains.com/issue/KT-17212) Refactor / Inline Function: with 1 occurrence both "Inline all" and "Inline this only" are suggested
- [`KT-18594`](https://youtrack.jetbrains.com/issue/KT-18594) Refactor / Extract (Functional) Parameter are available for annotation arguments, but fail with AE: "Body element is not found"
- [`KT-20146`](https://youtrack.jetbrains.com/issue/KT-20146) IAE “parameter 'name' of NameUtil.splitNameIntoWords must not be null” at renaming class
- [`KT-20335`](https://youtrack.jetbrains.com/issue/KT-20335) Refactor → Extract Type Parameter: “AWT events are not allowed inside write action” after processing duplicates
- [`KT-20402`](https://youtrack.jetbrains.com/issue/KT-20402) Throwable “PsiElement(IDENTIFIER) by KotlinInplaceParameterIntroducer” on calling Refactor → Extract Parameter for default values
- [`KT-20403`](https://youtrack.jetbrains.com/issue/KT-20403) AE “Body element is not found” on calling Refactor → Extract Parameter for default values in constructor of class without body
- [`KT-20790`](https://youtrack.jetbrains.com/issue/KT-20790) Refactoring extension function/property overagressive
- [`KT-20766`](https://youtrack.jetbrains.com/issue/KT-20766) Typealias end-of-line is removed when moving function and typealias to new file
- [`KT-21071`](https://youtrack.jetbrains.com/issue/KT-21071) Cannot invoke move refactoring on a typealias
- [`KT-21162`](https://youtrack.jetbrains.com/issue/KT-21162) Adding parameters to kotlin data class leads to compilation error
- [`KT-21288`](https://youtrack.jetbrains.com/issue/KT-21288) Change Signature refactoring fails to change signature of overriders
- [`KT-21334`](https://youtrack.jetbrains.com/issue/KT-21334) Extract variable doesn't take into account the receiver of a bound callable reference
- [`KT-21371`](https://youtrack.jetbrains.com/issue/KT-21371) Rename refactoring sometimes erases identifier being renamed when popping up name proposals
- [`KT-21530`](https://youtrack.jetbrains.com/issue/KT-21530) KNPE in introduce variable
- [`KT-21508`](https://youtrack.jetbrains.com/issue/KT-21508) `java.lang.AssertionError: PsiLiteralExpression` on property safe delete in Idea 173 
- [`KT-21536`](https://youtrack.jetbrains.com/issue/KT-21536) Rename refactoring sometimes doesn't quite work
- [`KT-21604`](https://youtrack.jetbrains.com/issue/KT-21604) Rename package missing title
- [`KT-21963`](https://youtrack.jetbrains.com/issue/KT-21963) Refactor / Inline Property: "null" in place of number of occurrences of local variable references
- [`KT-21964`](https://youtrack.jetbrains.com/issue/KT-21964) Refactor / Inline: on declaration of element with one usage "Inline and keep" choice is not suggested
- [`KT-21965`](https://youtrack.jetbrains.com/issue/KT-21965) Refactor / Inline: wording in dialog could be unified
### JavaScript

#### New Features

- [`KT-20210`](https://youtrack.jetbrains.com/issue/KT-20210) [JS] Ultra-fast builds for development
#### Performance Improvements

- [`KT-2218`](https://youtrack.jetbrains.com/issue/KT-2218) JS: Optimise in checks for number ranges
- [`KT-20932`](https://youtrack.jetbrains.com/issue/KT-20932) JS: Make withIndex() on arrays intrinsic
- [`KT-21160`](https://youtrack.jetbrains.com/issue/KT-21160) JS: generate switch statement for when statement when possible
#### Fixes

- [`KT-7653`](https://youtrack.jetbrains.com/issue/KT-7653) JS: TypeError when try to access to "simple" property (w/o backing field at runtime)
- [`KT-18963`](https://youtrack.jetbrains.com/issue/KT-18963) javascript project: No output directory found for Module 'xxx_test' production on JPS compiling
- [`KT-19290`](https://youtrack.jetbrains.com/issue/KT-19290) JS integer overflow for unaryMinus
- [`KT-19826`](https://youtrack.jetbrains.com/issue/KT-19826) JS: don't remove debugger statement from suspend functions
- [`KT-20580`](https://youtrack.jetbrains.com/issue/KT-20580) JS: JSON.stringify could improve 'replacer' argument handling
- [`KT-20694`](https://youtrack.jetbrains.com/issue/KT-20694) JS: add missed parts to JS Date
- [`KT-20737`](https://youtrack.jetbrains.com/issue/KT-20737) JS: cache KProperty instances that used to access to delegated property
- [`KT-20738`](https://youtrack.jetbrains.com/issue/KT-20738) JS: remove useless calls to constructor of KProperty* (PropertyMetadata) when it generated for access to delegated property
- [`KT-20854`](https://youtrack.jetbrains.com/issue/KT-20854) `val` parameters of type `kotlin.Char` aren't boxed
- [`KT-20898`](https://youtrack.jetbrains.com/issue/KT-20898) JS: inline js with `for` without initializer causes compiiler to crash
- [`KT-20905`](https://youtrack.jetbrains.com/issue/KT-20905) JS: compiler crashes on invalid inline JavaScript code instead of reporting error
- [`KT-20908`](https://youtrack.jetbrains.com/issue/KT-20908) JS frontend crashes on uncompleted call to function with reified parameters
- [`KT-20978`](https://youtrack.jetbrains.com/issue/KT-20978) JS: inline doesn't work for Array's constructor when it called through typealias
- [`KT-20994`](https://youtrack.jetbrains.com/issue/KT-20994) JS extension property in interface problem
- [`KT-21004`](https://youtrack.jetbrains.com/issue/KT-21004) JS: don't use short-circuit operators when translating Boolean.and/or(Boolean)
- [`KT-21026`](https://youtrack.jetbrains.com/issue/KT-21026) JS: wrong code generated for suspend fun that calls inline suspend fun as a tail call.
- [`KT-21041`](https://youtrack.jetbrains.com/issue/KT-21041) 'TypeError: ... is not a function' for lambda with closure passed as an argument to super type constructor
- [`KT-21043`](https://youtrack.jetbrains.com/issue/KT-21043) JS: inlining coroutine from other module sometimes causes incorrect code generated
- [`KT-21093`](https://youtrack.jetbrains.com/issue/KT-21093) Kotlin.JS doesnt escape ‘in’ identifier and conflicts with in keyword
- [`KT-21245`](https://youtrack.jetbrains.com/issue/KT-21245) JS: interface function with default parameter, overridden by other interface indirectly cannot be found at runtime
- [`KT-21307`](https://youtrack.jetbrains.com/issue/KT-21307) JS DCE does not remap paths to sources
- [`KT-21309`](https://youtrack.jetbrains.com/issue/KT-21309) JS: incorrect source map generated for inline lambda when it's last expression is a statement-like expression (e.g. when or try/catch)
- [`KT-21317`](https://youtrack.jetbrains.com/issue/KT-21317) JS: safe call to suspend function returning Unit causes incorrect 
- [`KT-21421`](https://youtrack.jetbrains.com/issue/KT-21421) JS: accesors of overridden char properties with backing fields aren't boxed
- [`KT-21468`](https://youtrack.jetbrains.com/issue/KT-21468) JS: don't use enum entry's name for when over external enums
- [`KT-21850`](https://youtrack.jetbrains.com/issue/KT-21850) JS: support nested tests
### Language design

- [`KT-10532`](https://youtrack.jetbrains.com/issue/KT-10532) ISE by ThrowingLexicalScope at compile time with specific override chain

### Libraries

- [`KT-20864`](https://youtrack.jetbrains.com/issue/KT-20864) Provide `ReadOnly` and `Mutable` annotations to control java collection mutability in kotlin
- [`KT-18789`](https://youtrack.jetbrains.com/issue/KT-18789) Delegating val to out-projected `MutableMap` resulted in NPE due to cast to `Nothing`
- [`KT-21828`](https://youtrack.jetbrains.com/issue/KT-21828) JS: The List produced by the `IntArray.asList` function caused weird results
- [`KT-21868`](https://youtrack.jetbrains.com/issue/KT-21868) Eliminate potential data race in `SafePublicationLazyImpl`
- [`KT-21918`](https://youtrack.jetbrains.com/issue/KT-21918) Make `toTypedArray()` implementation more efficient and thread-safe
- [`KT-22003`](https://youtrack.jetbrains.com/issue/KT-22003) JS: Replace `Regex` constructor-like functions with secondary constructors
- JS: `Volatile` and `Synchornized` annotations are moved to `kotlin.jvm` package with the migration type aliases provided
- [`KT-16348`](https://youtrack.jetbrains.com/issue/KT-16348) Provide `String.toBoolean()` conversion in JS and common platforms
- Add missing declarations to kotlin-stdlib-common, those that are already supported in both platforms
  - [`KT-21191`](https://youtrack.jetbrains.com/issue/KT-21191) Add missing exception constructors to common and JS declarations
  - [`KT-21861`](https://youtrack.jetbrains.com/issue/KT-21861) Provide `NumberFormatException` in common projects and make it inherit `IllegalArgumentException` in all platforms
  - Add missing `pattern` and `options` properties to common `Regex`
- [`KT-20968`](https://youtrack.jetbrains.com/issue/KT-20968) Improve docs for String.format and String.Companion.format

### Reflection

- [`KT-20875`](https://youtrack.jetbrains.com/issue/KT-20875) Support Void.TYPE as underlying Class object for KClass
- [`KT-21453`](https://youtrack.jetbrains.com/issue/KT-21453) NPE in TypeSignatureMappingKt#computeInternalName

### Tools

- [`KT-20298`](https://youtrack.jetbrains.com/issue/KT-20298) Lint warning when using @Parcelize with delegated properties
- [`KT-20299`](https://youtrack.jetbrains.com/issue/KT-20299) Android non-ASCII TextView Id Unresolved Reference Bug
- [`KT-20717`](https://youtrack.jetbrains.com/issue/KT-20717) @Parcelize Creator.newArray method is generated incorrectly
- [`KT-20751`](https://youtrack.jetbrains.com/issue/KT-20751) kotlin-spring compiler plugin does not open @Validated classes
- [`KT-21171`](https://youtrack.jetbrains.com/issue/KT-21171) _$_findViewCache and _$_findCachedViewById are created in Activity subclass without Kotlin Android Extensions.
- [`KT-21628`](https://youtrack.jetbrains.com/issue/KT-21628) Can't find referenced class kotlin.internal.annotations.AvoidUninitializedObjectCopyingCheck
- [`KT-21777`](https://youtrack.jetbrains.com/issue/KT-21777) RMI "Connection refused" errors with daemon
- [`KT-21992`](https://youtrack.jetbrains.com/issue/KT-21992) @Transient warning for lazy property

### Tools. Gradle

- [`KT-20892`](https://youtrack.jetbrains.com/issue/KT-20892) Support module name option in K2MetadataCompilerArguments
- [`KT-17621`](https://youtrack.jetbrains.com/issue/KT-17621) Incremental compilation is very slow when Java file is modified
- [`KT-14125`](https://youtrack.jetbrains.com/issue/KT-14125) Android-extensions don't track xml changes well
- [`KT-20233`](https://youtrack.jetbrains.com/issue/KT-20233) Kapt: using compiler in-process w/ gradle leads to classloader conflict
- [`KT-21009`](https://youtrack.jetbrains.com/issue/KT-21009) Running Gradle build with `clean` prevents `KotlinCompile` tasks from loading from cache
- [`KT-21596`](https://youtrack.jetbrains.com/issue/KT-21596) Improve Kapt Gradle Plugin to be more friendly for Kotlin-DSL
- [`KT-15753`](https://youtrack.jetbrains.com/issue/KT-15753) Support cacheable tasks
- [`KT-17656`](https://youtrack.jetbrains.com/issue/KT-17656) Kotlin and Kotlin Android plugin not using available build caches
- [`KT-20017`](https://youtrack.jetbrains.com/issue/KT-20017) Support local (non-relocatable) Gradle build cache
- [`KT-20598`](https://youtrack.jetbrains.com/issue/KT-20598) Missing input annotations on AbstractKotlinCompileTool
- [`KT-20604`](https://youtrack.jetbrains.com/issue/KT-20604) Kotlin plugin breaks relocatability and compile avoidance for Java compile tasks
- [`KT-21203`](https://youtrack.jetbrains.com/issue/KT-21203) Kotlin gradle plugin does not create proper Ivy metadata for dependencies
- [`KT-21261`](https://youtrack.jetbrains.com/issue/KT-21261) Gradle plugin 1.1.60 creates "build-history.bin" outside project.buildDir
- [`KT-21805`](https://youtrack.jetbrains.com/issue/KT-21805) Gradle plugin does not work with JDK 1.7 (KaptGradleModel)
- [`KT-21806`](https://youtrack.jetbrains.com/issue/KT-21806) Gradle Plugin: Using automatic dependency versions with 'maven-publish' plugin does not include dependency version in generated publication POMs
### Tools. Incremental Compile

- [`KT-20840`](https://youtrack.jetbrains.com/issue/KT-20840) Multiplatform IC fails if expected or actual file is modified separately
- [`KT-21622`](https://youtrack.jetbrains.com/issue/KT-21622) Make IC work more accurately with changes of Android layouts xml files
- [`KT-21699`](https://youtrack.jetbrains.com/issue/KT-21699) JS IC produces different source maps when enum usage is compiled separately
- [`KT-20633`](https://youtrack.jetbrains.com/issue/KT-20633) Class is not recompiled

### Tools. J2K

- [`KT-21502`](https://youtrack.jetbrains.com/issue/KT-21502) Inspection to convert map.put(k, v) into map[k] = v
- [`KT-19390`](https://youtrack.jetbrains.com/issue/KT-19390) Character and string concatenation in Java is converted to code with multiple type errors in Kotlin
- [`KT-19943`](https://youtrack.jetbrains.com/issue/KT-19943) Redundant 'toInt' after converting explicit Integer#intValue call

### Tools. JPS

- [`KT-21574`](https://youtrack.jetbrains.com/issue/KT-21574) JPS build: API version in project settings is ignored
- [`KT-21841`](https://youtrack.jetbrains.com/issue/KT-21841) JPS throws exception creating temporary file for module
- [`KT-21962`](https://youtrack.jetbrains.com/issue/KT-21962) Source file dependencies (lookups) are not tracked in JPS when Kotlin daemon is used

### Tools. Maven

- [`KT-20816`](https://youtrack.jetbrains.com/issue/KT-20816) Repeated Maven Compiles With Kapt Fail

### Tools. REPL

- [`KT-17561`](https://youtrack.jetbrains.com/issue/KT-17561) Embedding kotlin-script-utils may cause version conflicts e.g. with guava
- [`KT-17921`](https://youtrack.jetbrains.com/issue/KT-17921) The JSR 223 scripting engine fails to eval anything after encountering an unresolved reference
- [`KT-21075`](https://youtrack.jetbrains.com/issue/KT-21075) KotlinJsr223JvmLocalScriptEngineFactory does not well with kotlin-compiler-embeddable
- [`KT-21141`](https://youtrack.jetbrains.com/issue/KT-21141) Kotlin script: KotlinJsr223JvmLocalScriptEngine.state.history.reset() seems not clearing the compiler cache

### Tools. kapt

#### Fixes

- [`KT-18791`](https://youtrack.jetbrains.com/issue/KT-18791) Kapt: Constants from R class should not be inlined
- [`KT-19203`](https://youtrack.jetbrains.com/issue/KT-19203) Kapt3 generator doesn't seem to print log level lower to Mandatory Warning
- [`KT-19402`](https://youtrack.jetbrains.com/issue/KT-19402) `kapt.correctErrorTypes` makes typealias not work.
- [`KT-19505`](https://youtrack.jetbrains.com/issue/KT-19505) Kapt doesn't always stub classes about to be generated.
- [`KT-19518`](https://youtrack.jetbrains.com/issue/KT-19518) Kapt: Support 'correctErrorTypes' option in annotations
- [`KT-20257`](https://youtrack.jetbrains.com/issue/KT-20257) Kapt is incompatible with compiler plugins
- [`KT-20749`](https://youtrack.jetbrains.com/issue/KT-20749) Kapt: Support Java 9
- [`KT-21144`](https://youtrack.jetbrains.com/issue/KT-21144) Kapt: Compilation error with maven plugin (Java 9 compatibility)
- [`KT-21205`](https://youtrack.jetbrains.com/issue/KT-21205) KDoc unavailable via javax.lang.model.util.Elements#getDocComment(Element e)
- [`KT-21262`](https://youtrack.jetbrains.com/issue/KT-21262) Kapt: Remove artificial KaptError exception on errors from annotation processor
- [`KT-21264`](https://youtrack.jetbrains.com/issue/KT-21264) Kapt: -Xmaxerrs javac option is not propagated properly
- [`KT-21358`](https://youtrack.jetbrains.com/issue/KT-21358) Kapt: Support import directive with aliases (correctErrorTypes)
- [`KT-21359`](https://youtrack.jetbrains.com/issue/KT-21359) Kapt: Filter out non-package imports whenever possible (correctErrorTypes)
- [`KT-21425`](https://youtrack.jetbrains.com/issue/KT-21425) kapt warning when assembling unit tests
- [`KT-21433`](https://youtrack.jetbrains.com/issue/KT-21433) Annotations on enum constants are not kept on the generated stub
- [`KT-21483`](https://youtrack.jetbrains.com/issue/KT-21483) Kapt: Loading resources doesn't work without restarting the gradle daemon
- [`KT-21542`](https://youtrack.jetbrains.com/issue/KT-21542) Kapt: Report additional info about time spent in each annotation processor
- [`KT-21565`](https://youtrack.jetbrains.com/issue/KT-21565) Kapt, Maven: Support passing arguments for annotation processors
- [`KT-21566`](https://youtrack.jetbrains.com/issue/KT-21566) Kapt, Maven: Support passing Javac options
- [`KT-21729`](https://youtrack.jetbrains.com/issue/KT-21729) Error message says "androidProcessor" should be "annotationProcessor"
- [`KT-21936`](https://youtrack.jetbrains.com/issue/KT-21936) Kapt 1.2.20-eap:  cannot find symbol @KaptSignature
- [`KT-21735`](https://youtrack.jetbrains.com/issue/KT-21735) Kapt cache not cleared
- [`KT-22056`](https://youtrack.jetbrains.com/issue/KT-22056) Applying Kapt plugin causes RuntimeException on Gradle import: "Kapt importer for generated source roots failed, source root name: debug" at KaptProjectResolverExtension.populateAndroidModuleModelIfNeeded()
- [`KT-22189`](https://youtrack.jetbrains.com/issue/KT-22189) ISE from com.sun.tools.javac.util.Context.checkState when switching from 1.2.10 to 1.2.20-eap-33

## 1.2.10

### Compiler

- [`KT-20821`](https://youtrack.jetbrains.com/issue/KT-20821) Error while inlining function reference implicitly applied to this
- [`KT-21299`](https://youtrack.jetbrains.com/issue/KT-21299) Restore adding JDK roots to the beginning of the classpath list

### IDE

- [`KT-21180`](https://youtrack.jetbrains.com/issue/KT-21180) Project level api/language version settings are erroneously used as default during Gradle import
- [`KT-21335`](https://youtrack.jetbrains.com/issue/KT-21335) Fix exception on Project Structure view open
- [`KT-21610`](https://youtrack.jetbrains.com/issue/KT-21610) Fix "Could not determine the class-path for interface KotlinGradleModel" on Gradle sync
- Optimize dependency handling during import of Gradle project

### JavaScript

- [`KT-21493`](https://youtrack.jetbrains.com/issue/KT-21493) Losing lambda defined in inline function after incremental recompilation

### Tools. CLI

- [`KT-21495`](https://youtrack.jetbrains.com/issue/KT-21537) Bash scripts in Kotlin v1.2 compiler have Windows line terminators 
- [`KT-21537`](https://youtrack.jetbrains.com/issue/KT-21537) javac 7 do nothing when kotlin-compiler(-embeddable) is in classpath

### Libraries

- Unify docs wording of 'trim*' functions 
- Improve cover documentation page of kotlin.test library 
- Provide summary for kotlin.math package 
- Fix unresolved references in the api docs 

## 1.2

### Android

- [`KT-20974`](https://youtrack.jetbrains.com/issue/KT-20974) NSME "AndroidModuleModel.getMainArtifact" on Gradle refresh
- [`KT-20975`](https://youtrack.jetbrains.com/issue/KT-20975) IAE "Missing extension point" on Gradle refresh

### Compiler

- [`KT-6359`](https://youtrack.jetbrains.com/issue/KT-6359) Provide the way to share code with different targets(JVM, JS)

### IDE

- [`KT-21300`](https://youtrack.jetbrains.com/issue/KT-21300) IDEA slow down in Kotlin + Spring project 
- [`KT-20450`](https://youtrack.jetbrains.com/issue/KT-20450) Exception in UAST during function inlining
- [`KT-20789`](https://youtrack.jetbrains.com/issue/KT-20789) Can't navigate to inline call/inline use site when runner is delegated to Gradle
- [`KT-21236`](https://youtrack.jetbrains.com/issue/KT-21236) New project button doesn't work with Kotlin plugin enabled and Gradle plugin disabled
- [`KT-21263`](https://youtrack.jetbrains.com/issue/KT-21263) "Configure Kotlin Plugin Updates" suggests incompatible plugin for AS 3.0

### Tools. JPS

- [`KT-20757`](https://youtrack.jetbrains.com/issue/KT-20757) Rebuild when language/api version is changed

## 1.2-RC2

### Compiler

- [`KT-20844`](https://youtrack.jetbrains.com/issue/KT-20844) VerifyError on Android after upgrading to 1.2.0-beta-88
- [`KT-20895`](https://youtrack.jetbrains.com/issue/KT-20895) NPE in Kotlin 1.2-beta88 PseudocodeVariablesData.kt:337 
- [`KT-21377`](https://youtrack.jetbrains.com/issue/KT-21377) Create fallback flag for "Illegal smart cast is allowed after assignment in try block"

### IDE

- [`KT-18719`](https://youtrack.jetbrains.com/issue/KT-18719) Configure Kotlin in Gradle project to 1.2-Mx: add repository mavenCentral() to buildscript
- [`KT-20782`](https://youtrack.jetbrains.com/issue/KT-20782) Exception when working with routing in ktor (non-atomic trees update)
- [`KT-20966`](https://youtrack.jetbrains.com/issue/KT-20966) ISE: Facade class not found from Kotlin test files
- [`KT-20967`](https://youtrack.jetbrains.com/issue/KT-20967) Kotlin plugin upgrade breaks Gradle refresh
- [`KT-20990`](https://youtrack.jetbrains.com/issue/KT-20990) String literal in string template causes ISE
- [`KT-21028`](https://youtrack.jetbrains.com/issue/KT-21028) Add kotlin-stdlib-jre7/8 instead of kotlin-stdlib-jdk7/8 for Kotlin versions below 1.2
- [`KT-21383`](https://youtrack.jetbrains.com/issue/KT-21383) `Unsupported method: Library.getProject()` when importing Anko project
- Downgrade "use expression body" inspection to INFORMATION default level

### IDE. Debugger

- [`KT-20962`](https://youtrack.jetbrains.com/issue/KT-20962) NullPointerException because of nullable location in debugger

### IDE. Inspections and Intentions

- [`KT-20803`](https://youtrack.jetbrains.com/issue/KT-20803) Create actual declaration in the same source root as expect declaration

### IDE. Refactorings

- [`KT-20979`](https://youtrack.jetbrains.com/issue/KT-20979) Move class refactoring doesn't work anymore

### Libraries

- Remove deprecated `pairwise` function

### Tools. Gradle

- [`KT-21395`](https://youtrack.jetbrains.com/issue/KT-21395) “Unable to load class 'kotlin.collections.CollectionsKt'” on creating gradle project in IDEA 2016.3.7

### Tools. kapt

- Add `kotlin-annotation-processing-embeddable` artifact (compatible with `kotlin-compiler-embeddable`)
- Return `kotlin-annotation-processing` artifact back (compatible with CLI Kotlin compiler)

## 1.2-RC

### Compiler

#### Fixes

- [`KT-20774`](https://youtrack.jetbrains.com/issue/KT-20774) "::foo.isInitialized" for lateinit member properties produces incorrect bytecode
- [`KT-20826`](https://youtrack.jetbrains.com/issue/KT-20826) Can't compile Ultimate Idea with Kotlin 1.2
- [`KT-20879`](https://youtrack.jetbrains.com/issue/KT-20879) Compiler problem in when-expressions
- [`KT-20959`](https://youtrack.jetbrains.com/issue/KT-20959) Regression: Unexpected diagnostic NINITIALIZED_ENUM_COMPANION reported in 1.1.60 & 1.2.0-rc
- [`KT-20651`](https://youtrack.jetbrains.com/issue/KT-20651) Don't know how to generate outer expression" for enum-values with non-trivial self-closures

### IDE

#### New Features

- [`KT-20286`](https://youtrack.jetbrains.com/issue/KT-20286) "Configure Kotlin in project" should add kotlin-stdlib-jdk7/8 instead of kotlin-stdlib-jre7/8 starting from Kotlin 1.2

#### Fixes

- [`KT-19599`](https://youtrack.jetbrains.com/issue/KT-19599) No indentation for multiline collection literal
- [`KT-20346`](https://youtrack.jetbrains.com/issue/KT-20346) Can't build tests in common code due to missing org.jetbrains.kotlin:kotlin-test-js testCompile dependency in JS
- [`KT-20550`](https://youtrack.jetbrains.com/issue/KT-20550) Spring: "Navigate to autowired candidates" gutter action is missed (IDEA 2017.3)
- [`KT-20566`](https://youtrack.jetbrains.com/issue/KT-20566) Spring: "Navigate to the spring beans declaration" gutter action for `@ComponentScan` is missed (IDEA 2017.3)
- [`KT-20843`](https://youtrack.jetbrains.com/issue/KT-20843) Kotlin TypeDeclarationProvider may stop other declarations providers execution
- [`KT-20906`](https://youtrack.jetbrains.com/issue/KT-20906) Find symbol by name doesn't work
- [`KT-20920`](https://youtrack.jetbrains.com/issue/KT-20920) UAST: SOE Thrown in JavaColorProvider
- [`KT-20922`](https://youtrack.jetbrains.com/issue/KT-20922) Couldn't match ClsMethodImpl from Kotlin test files
- [`KT-20929`](https://youtrack.jetbrains.com/issue/KT-20929) Import Project from Gradle wizard: the same page is shown twice
- [`KT-20833`](https://youtrack.jetbrains.com/issue/KT-20833) MP project: add dependency to kotlin-test-annotation-common to common module

### IDE. Completion

- [`KT-18458`](https://youtrack.jetbrains.com/issue/KT-18458) Spring: code completion does not suggest bean names inside `@Qualifier` before function parameter

### IDE. Inspections and Intentions

- [`KT-20899`](https://youtrack.jetbrains.com/issue/KT-20899) Code Cleanup fails to convert Circlet codebase to 1.2
- [`KT-20949`](https://youtrack.jetbrains.com/issue/KT-20949) CCE from UAST (File breadcrumbs don't update when file tree does)

### IDE. Refactorings

- [`KT-20251`](https://youtrack.jetbrains.com/issue/KT-20251) Kotlin Gradle script: Refactor → Inline works incorrect when you need to inline all function occurrences

### JavaScript

- [`KT-2976`](https://youtrack.jetbrains.com/issue/KT-2976) Suggestion for cleaner style to implement !! operator
- [`KT-5259`](https://youtrack.jetbrains.com/issue/KT-5259) JS: RTTI may be break by overwriting constructor field
- [`KT-17475`](https://youtrack.jetbrains.com/issue/KT-17475) JS: object and companion object named "prototype" cause exceptions
- [`KT-18095`](https://youtrack.jetbrains.com/issue/KT-18095) JS: Wrong behavior of fun named "constructor"
- [`KT-18105`](https://youtrack.jetbrains.com/issue/KT-18105) JS: inner class "length" cause runtime exception
- [`KT-20625`](https://youtrack.jetbrains.com/issue/KT-20625) JS: Interface function with default parameter, overridden by other interface cannot be found at runtime
- [`KT-20820`](https://youtrack.jetbrains.com/issue/KT-20820) JS: IDEA project doesn't generate paths relative to .map

### Libraries

- [`KT-4900`](https://youtrack.jetbrains.com/issue/KT-4900) Finalize math operation parameter names

### Tools. JPS

- [`KT-20852`](https://youtrack.jetbrains.com/issue/KT-20852) IllegalArgumentException: URI has an authority component on attempt to jps compile the gradle project with javascript module

### Tools. kapt

- [`KT-20877`](https://youtrack.jetbrains.com/issue/KT-20877) Butterknife: UninitializedPropertyAccessException: "lateinit property has not been initialized" for field annotated with `@BindView`.

## 1.2-Beta2

### Multiplatform projects

#### New Features

- [`KT-20616`](https://youtrack.jetbrains.com/issue/KT-20616) Compiler options for `KotlinCompileCommon` task
- [`KT-15522`](https://youtrack.jetbrains.com/issue/KT-15522) Treat expect classes without explicit constructors as not having constructors at all
- [`KT-16099`](https://youtrack.jetbrains.com/issue/KT-16099) Do not require obvious override of super-interface methods in non-abstract expect class
- [`KT-20618`](https://youtrack.jetbrains.com/issue/KT-20618) Rename `implement` to `expectedBy` in gradle module dependency

#### Fixes

- [`KT-16926`](https://youtrack.jetbrains.com/issue/KT-16926) 'implement' dependency is not transitive when importing gradle project to IDEA
- [`KT-20634`](https://youtrack.jetbrains.com/issue/KT-20634) False error about platform project implementing non-common project
- [`KT-19170`](https://youtrack.jetbrains.com/issue/KT-19170) Forbid private expected declarations
- [`KT-20431`](https://youtrack.jetbrains.com/issue/KT-20431) Prohibit inheritance by delegation in 'expect' classes
- [`KT-20540`](https://youtrack.jetbrains.com/issue/KT-20540) Report errors about incompatible constructors of actual class
- [`KT-20398`](https://youtrack.jetbrains.com/issue/KT-20398) Do not highlight declarations with not implemented implementations with red during typing
- [`KT-19937`](https://youtrack.jetbrains.com/issue/KT-19937) Support "implement expect class" quickfix for nested classes
- [`KT-20657`](https://youtrack.jetbrains.com/issue/KT-20657) Actual annotation with all parameters that have default values doesn't match expected annotation with no-arg constructor
- [`KT-20680`](https://youtrack.jetbrains.com/issue/KT-20680) No actual class member: inconsistent modality check
- [`KT-18756`](https://youtrack.jetbrains.com/issue/KT-18756) multiplatform project: compilation error on implementation of extension property in javascript client module
- [`KT-17374`](https://youtrack.jetbrains.com/issue/KT-17374) Too many "expect declaration has no implementation" inspection in IDE in a multi-platform project
- [`KT-18455`](https://youtrack.jetbrains.com/issue/KT-18455) Multiplatform project: show gutter Navigate to implementation on expect side of method in the expect class
- [`KT-19222`](https://youtrack.jetbrains.com/issue/KT-19222) Useless tooltip on a gutter icon for expect declaration
- [`KT-20043`](https://youtrack.jetbrains.com/issue/KT-20043) multiplatform: No H gutter if a class has nested/inner classes inherited from it
- [`KT-20164`](https://youtrack.jetbrains.com/issue/KT-20164) expect/actual navigation does not work when actual is a typealias
- [`KT-20254`](https://youtrack.jetbrains.com/issue/KT-20254) multiplatform: there is no link between expect and actual classes, if implementation has a constructor when expect doesn't
- [`KT-20309`](https://youtrack.jetbrains.com/issue/KT-20309) multiplatform: ClassCastException on mouse hovering on the H gutter of the actual secondary constructor
- [`KT-20638`](https://youtrack.jetbrains.com/issue/KT-20638) Context menu in common module: NSEE: "Collection contains no element matching the predicate." at KotlinRunConfigurationProducerKt.findJvmImplementationModule()
- [`KT-18919`](https://youtrack.jetbrains.com/issue/KT-18919) multiplatform project: expect keyword is lost on converting to object
- [`KT-20008`](https://youtrack.jetbrains.com/issue/KT-20008) multiplatform: Create expect class implementation should add actual keyword at secondary constructors
- [`KT-20044`](https://youtrack.jetbrains.com/issue/KT-20044) multiplatform: Create expect class implementation should add actual constructor at primary constructor
- [`KT-20135`](https://youtrack.jetbrains.com/issue/KT-20135) "Create expect class implementation" should open created class in editor
- [`KT-20163`](https://youtrack.jetbrains.com/issue/KT-20163) multiplatform: it should be possible to create an implementation for overloaded method if for one method implementation is present already
- [`KT-20243`](https://youtrack.jetbrains.com/issue/KT-20243) multiplatform: quick fix Create expect interface implementation should add actual keyword at interface members
- [`KT-20325`](https://youtrack.jetbrains.com/issue/KT-20325) multiplatform: Quick fix Create actual ... should specify correct classifier name for object, enum class and annotation class

### Compiler

#### New Features

- [`KT-16028`](https://youtrack.jetbrains.com/issue/KT-16028) Allow to have different bodies of inline functions inlined depending on apiVersion

#### Performance Improvements

- [`KT-20462`](https://youtrack.jetbrains.com/issue/KT-20462) Don't create an array copy for '*<array-constructor-fun>(...)'

#### Fixes

- [`KT-13644`](https://youtrack.jetbrains.com/issue/KT-13644) Information from explicit cast should be used for type inference
- [`KT-14697`](https://youtrack.jetbrains.com/issue/KT-14697) Use-site targeted annotation is not correctly loaded from class file
- [`KT-17981`](https://youtrack.jetbrains.com/issue/KT-17981) Type parameter for catch parameter possible when exception is nested in generic, but fails in runtime
- [`KT-19251`](https://youtrack.jetbrains.com/issue/KT-19251) Stack spilling in constructor arguments breaks Quasar
- [`KT-20387`](https://youtrack.jetbrains.com/issue/KT-20387) Wrong argument generated for accessor call of a protected generic 'operator fun get/set' from base class with primitive type as type parameter
- [`KT-20491`](https://youtrack.jetbrains.com/issue/KT-20491) Incorrect synthetic accessor generated for a generic base class function specialized with primitive type
- [`KT-20651`](https://youtrack.jetbrains.com/issue/KT-20651) "Don't know how to generate outer expression" for enum-values with non-trivial self-closures
- [`KT-20752`](https://youtrack.jetbrains.com/issue/KT-20752) Do not register new kinds of smart casts for unstable values

### IDE

#### New Features

- [`KT-19146`](https://youtrack.jetbrains.com/issue/KT-19146) Parameter hints could be shown for annotation

#### Fixes

- [`KT-19207`](https://youtrack.jetbrains.com/issue/KT-19207) "Configure Kotlin in project" should add "requires kotlin.stdlib" to module-info for Java 9 modules
- [`KT-19213`](https://youtrack.jetbrains.com/issue/KT-19213) Formatter/Code Style: space between type parameters and `where` is not inserted
- [`KT-19216`](https://youtrack.jetbrains.com/issue/KT-19216) Parameter name hints should not be shown for functional type invocation
- [`KT-20448`](https://youtrack.jetbrains.com/issue/KT-20448) Exception in UAST during reference search in J2K
- [`KT-20543`](https://youtrack.jetbrains.com/issue/KT-20543) java.lang.ClassCastException on usage of array literals in Spring annotation
- [`KT-20709`](https://youtrack.jetbrains.com/issue/KT-20709) Loop in parent structure when converting a LITERAL_STRING_TEMPLATE_ENTRY

### IDE. Completion

- [`KT-17165`](https://youtrack.jetbrains.com/issue/KT-17165) Support array literals in annotations in completion

### IDE. Debugger

- [`KT-18775`](https://youtrack.jetbrains.com/issue/KT-18775) Evaluate expression doesn't allow access to properties of private nested objects, including companion

### IDE. Inspections and Intentions

#### New Features

- [`KT-20108`](https://youtrack.jetbrains.com/issue/KT-20108) Support "add requires directive to module-info.java" quick fix on usages of non-required modules in Kotlin sources
- [`KT-20410`](https://youtrack.jetbrains.com/issue/KT-20410) Add inspection for listOf().filterNotNull() to replace it with listOfNotNull()

#### Fixes

- [`KT-16636`](https://youtrack.jetbrains.com/issue/KT-16636) Remove parentheses after deleting the last unused constructor parameter
- [`KT-18549`](https://youtrack.jetbrains.com/issue/KT-18549) "Add type" quick fix adds non-primitive Array type for annotation parameters
- [`KT-18631`](https://youtrack.jetbrains.com/issue/KT-18631) Inspection to convert emptyArray() to empty literal does not work
- [`KT-18773`](https://youtrack.jetbrains.com/issue/KT-18773) Disable "Replace camel-case name with spaces" intention for JS and common projects
- [`KT-20183`](https://youtrack.jetbrains.com/issue/KT-20183) AE “Classifier descriptor of a type should be of type ClassDescriptor” on adding element to generic collection in function
- [`KT-20315`](https://youtrack.jetbrains.com/issue/KT-20315) "call chain on collection type may be simplified" generates code that does not compile

### JavaScript

#### Fixes

- [`KT-8285`](https://youtrack.jetbrains.com/issue/KT-8285) JS: don't generate tmp when only need one component
- [`KT-8374`](https://youtrack.jetbrains.com/issue/KT-8374) JS: some Double values converts to Int differently on JS and JVM
- [`KT-14549`](https://youtrack.jetbrains.com/issue/KT-14549) JS: Non-local returns from secondary constructors don't work
- [`KT-15294`](https://youtrack.jetbrains.com/issue/KT-15294) JS: parse error in `js()` function
- [`KT-17629`](https://youtrack.jetbrains.com/issue/KT-17629) JS: Equals function (==) returns true for all primitive numeric types
- [`KT-17760`](https://youtrack.jetbrains.com/issue/KT-17760) JS: Nothing::class throws error
- [`KT-17933`](https://youtrack.jetbrains.com/issue/KT-17933) JS: toString, hashCode method and simplename property of KClass return senseless results for some classes
- [`KT-18010`](https://youtrack.jetbrains.com/issue/KT-18010) JS: JsName annotation in interfaces can cause runtime exception
- [`KT-18063`](https://youtrack.jetbrains.com/issue/KT-18063) Inlining does not work properly in JS for suspend functions from another module
- [`KT-18548`](https://youtrack.jetbrains.com/issue/KT-18548) JS: wrong string interpolation with generic or Any parameters
- [`KT-19772`](https://youtrack.jetbrains.com/issue/KT-19772) JS: wrong boxing behavior for open val and final fun inside open class
- [`KT-19794`](https://youtrack.jetbrains.com/issue/KT-19794) runtime crash with empty object (Javascript)
- [`KT-19818`](https://youtrack.jetbrains.com/issue/KT-19818) JS: generate paths relative to .map file by default (unless "-source-map-prefix" is used)
- [`KT-19906`](https://youtrack.jetbrains.com/issue/KT-19906) JS: rename compiler option "-source-map-source-roots" to avoid misleading since sourcemaps have field called "sourceRoot"
- [`KT-20287`](https://youtrack.jetbrains.com/issue/KT-20287) Functions don't actually return Unit in Kotlin-JS -> unexpected null problems vs JDK version
- [`KT-20451`](https://youtrack.jetbrains.com/issue/KT-20451) KotlinJs - interface function with default parameter, overridden by implementor, can't be found at runtime
- [`KT-20527`](https://youtrack.jetbrains.com/issue/KT-20527) JS: use prototype chain to check that object implements kotlin interface
- [`KT-20650`](https://youtrack.jetbrains.com/issue/KT-20650) JS: compiler crashes in Java 9 with NoClassDefFoundError
- [`KT-20653`](https://youtrack.jetbrains.com/issue/KT-20653) JS: compiler crashes in Java 9 with TranslationRuntimeException

### Language design

- [`KT-20171`](https://youtrack.jetbrains.com/issue/KT-20171) Deprecate assigning single elements to varargs in named form

### Libraries

- [`KT-19696`](https://youtrack.jetbrains.com/issue/KT-19696) Provide a way to write multiplatform tests
- [`KT-18961`](https://youtrack.jetbrains.com/issue/KT-18961) Closeable.use should call addSuppressed
- [`KT-2460`](https://youtrack.jetbrains.com/issue/KT-2460) [`PR-1300`](https://github.com/JetBrains/kotlin/pull/1300) `shuffle` and `fill` extensions for MutableList now also available in JS
- [`PR-1230`](https://github.com/JetBrains/kotlin/pull/1230) Add assertSame and assertNotSame methods to kotlin-test

### Tools. Gradle

- [`KT-20553`](https://youtrack.jetbrains.com/issue/KT-20553) Rename `warningsAsErrors` compiler option to `allWarningsAsErrors`
- [`KT-20217`](https://youtrack.jetbrains.com/issue/KT-20217) `src/main/java` and `src/test/java` source directories are no longer included by default in Kotlin/JS and Kotlin/Common projects 

### Tools. Incremental Compile

- [`KT-20654`](https://youtrack.jetbrains.com/issue/KT-20654) AndroidStudio: NSME “PsiJavaModule.getName()Ljava/lang/String” on calling simple Kotlin functions like println(), listOf()

### Binary Metadata

- [`KT-20547`](https://youtrack.jetbrains.com/issue/KT-20547) Write pre-release flag into class files if language version > LATEST_STABLE

## 1.2-Beta

### Android

#### New Features

- [`KT-20051`](https://youtrack.jetbrains.com/issue/KT-20051) Quickfixes to support @Parcelize
#### Fixes

- [`KT-19747`](https://youtrack.jetbrains.com/issue/KT-19747) Android extensions + Parcelable: VerifyError in case of RawValue annotation on a type when it's unknown how to parcel it
- [`KT-19899`](https://youtrack.jetbrains.com/issue/KT-19899) Parcelize: Building with ProGuard enabled
- [`KT-19988`](https://youtrack.jetbrains.com/issue/KT-19988) [Android Extensions] inner class LayoutContainer causes NoSuchMethodError
- [`KT-20002`](https://youtrack.jetbrains.com/issue/KT-20002) Parcelize explodes on LongArray
- [`KT-20019`](https://youtrack.jetbrains.com/issue/KT-20019) Parcelize does not propogate flags argument when writing nested Parcelable
- [`KT-20020`](https://youtrack.jetbrains.com/issue/KT-20020) Parcelize does not use primitive array read/write methods on Parcel
- [`KT-20021`](https://youtrack.jetbrains.com/issue/KT-20021) Parcelize does not serialize Parcelable enum as Parcelable
- [`KT-20022`](https://youtrack.jetbrains.com/issue/KT-20022) Parcelize should dispatch directly to java.lang.Enum when writing an enum.
- [`KT-20034`](https://youtrack.jetbrains.com/issue/KT-20034) Application installation failed (INSTALL_FAILED_DEXOPT) in Android 4.3 devices if I use Parcelize
- [`KT-20057`](https://youtrack.jetbrains.com/issue/KT-20057) Parcelize should use specialized write/create methods where available.
- [`KT-20062`](https://youtrack.jetbrains.com/issue/KT-20062) Parceler should allow otherwise un-parcelable property types in enclosing class.
- [`KT-20170`](https://youtrack.jetbrains.com/issue/KT-20170) UAST: Getting the location of a UIdentifier is tricky

### Compiler

- [`KT-4565`](https://youtrack.jetbrains.com/issue/KT-4565) Support smart casting of safe cast's subject (and also safe call's receiver)
- [`KT-8492`](https://youtrack.jetbrains.com/issue/KT-8492) Null check should work after save call with elvis in condition
- [`KT-9327`](https://youtrack.jetbrains.com/issue/KT-9327) Need a way to check whether a lateinit property was assigned
- [`KT-14138`](https://youtrack.jetbrains.com/issue/KT-14138) Allow lateinit local variables
- [`KT-15461`](https://youtrack.jetbrains.com/issue/KT-15461) Allow lateinit top level properties
- [`KT-7257`](https://youtrack.jetbrains.com/issue/KT-7257) NPE when accessing properties of enum from inner lambda on initialization
- [`KT-9580`](https://youtrack.jetbrains.com/issue/KT-9580) Report an error if 'setparam' target does not make sense for a parameter declaration
- [`KT-16310`](https://youtrack.jetbrains.com/issue/KT-16310) Nested classes inside enum entries capturing outer members
- [`KT-20155`](https://youtrack.jetbrains.com/issue/KT-20155) Confusing diagnostics on a nested interface in inner class

### IDE

- [`KT-14175`](https://youtrack.jetbrains.com/issue/KT-14175) Surround with try ... catch (... finally) doesn't work for expressions
- [`KT-20308`](https://youtrack.jetbrains.com/issue/KT-20308) New Gradle with Kotlin DSL project wizard
- [`KT-18353`](https://youtrack.jetbrains.com/issue/KT-18353) Support UAST for .kts files
- [`KT-19823`](https://youtrack.jetbrains.com/issue/KT-19823) Kotlin Gradle project import into IntelliJ: import kapt generated classes into classpath
- [`KT-20185`](https://youtrack.jetbrains.com/issue/KT-20185) Stub and PSI element type mismatch for "var nullableSuspend: (suspend (P) -> Unit)? = null"

### Language design

- [`KT-14486`](https://youtrack.jetbrains.com/issue/KT-14486) Allow smart cast in closure if a local variable is modified only before it (and not after or inside)
- [`KT-15667`](https://youtrack.jetbrains.com/issue/KT-15667) Support "::foo" as a short-hand syntax for bound callable reference to "this::foo"
- [`KT-16681`](https://youtrack.jetbrains.com/issue/KT-16681) kotlin allows mutating the field of read-only property

### Libraries

- [`KT-19258`](https://youtrack.jetbrains.com/issue/KT-19258) Java 9: module-info.java with `requires kotlin.stdlib` causes compiler to fail: "module reads package from both kotlin.reflect and kotlin.stdlib"

### Tools

- [`KT-19692`](https://youtrack.jetbrains.com/issue/KT-19692) kotlin-jpa plugin doesn't support @MappedSuperclass annotation
- [`KT-20030`](https://youtrack.jetbrains.com/issue/KT-20030) Parcelize can directly reference writeToParcel and CREATOR for final, non-Parcelize Parcelable types in same compilation unit.
- [`KT-19742`](https://youtrack.jetbrains.com/issue/KT-19742) [Android extensions] Calling clearFindViewByIdCache causes NPE
- [`KT-19749`](https://youtrack.jetbrains.com/issue/KT-19749) Android extensions + Parcelable: NoSuchMethodError on attempt to pack into parcel a serializable object
- [`KT-20026`](https://youtrack.jetbrains.com/issue/KT-20026) Parcelize overrides describeContents despite being already implemented.
- [`KT-20027`](https://youtrack.jetbrains.com/issue/KT-20027) Parcelize uses wrong classloader when reading parcelable type.
- [`KT-20029`](https://youtrack.jetbrains.com/issue/KT-20029) Parcelize should not directly reference parcel methods on types outside compilation unit
- [`KT-20032`](https://youtrack.jetbrains.com/issue/KT-20032) Parcelize does not respect type nullability in case of Parcelize parcelables

### Tools. CLI

- [`KT-10563`](https://youtrack.jetbrains.com/issue/KT-10563) Support a command line argument -Werror to treat warnings as errors

### Tools. Gradle

- [`KT-20212`](https://youtrack.jetbrains.com/issue/KT-20212) Cannot access internal components from test code

### Tools. kapt

- [`KT-17923`](https://youtrack.jetbrains.com/issue/KT-17923) Reference to Dagger generated class is highlighted red
- [`KT-18923`](https://youtrack.jetbrains.com/issue/KT-18923) Kapt: Do not use the Kotlin error message collector to issue errors from kapt
- [`KT-19097`](https://youtrack.jetbrains.com/issue/KT-19097) Request: Decent support of `kapt.kotlin.generated` on Intellij/Android Studio
- [`KT-20001`](https://youtrack.jetbrains.com/issue/KT-20001) kapt generate stubs Gradle task does not depend on the compilation of sub-project kapt dependencies

## 1.1.60

### Android

#### New Features

- [`KT-20051`](https://youtrack.jetbrains.com/issue/KT-20051) Quickfixes to support @Parcelize
#### Fixes

- [`KT-19747`](https://youtrack.jetbrains.com/issue/KT-19747) Android extensions + Parcelable: VerifyError in case of RawValue annotation on a type when it's unknown how to parcel it
- [`KT-19899`](https://youtrack.jetbrains.com/issue/KT-19899) Parcelize: Building with ProGuard enabled
- [`KT-19988`](https://youtrack.jetbrains.com/issue/KT-19988) [Android Extensions] inner class LayoutContainer causes NoSuchMethodError
- [`KT-20002`](https://youtrack.jetbrains.com/issue/KT-20002) Parcelize explodes on LongArray
- [`KT-20019`](https://youtrack.jetbrains.com/issue/KT-20019) Parcelize does not propogate flags argument when writing nested Parcelable
- [`KT-20020`](https://youtrack.jetbrains.com/issue/KT-20020) Parcelize does not use primitive array read/write methods on Parcel
- [`KT-20021`](https://youtrack.jetbrains.com/issue/KT-20021) Parcelize does not serialize Parcelable enum as Parcelable
- [`KT-20022`](https://youtrack.jetbrains.com/issue/KT-20022) Parcelize should dispatch directly to java.lang.Enum when writing an enum.
- [`KT-20034`](https://youtrack.jetbrains.com/issue/KT-20034) Application installation failed (INSTALL_FAILED_DEXOPT) in Android 4.3 devices if I use Parcelize
- [`KT-20057`](https://youtrack.jetbrains.com/issue/KT-20057) Parcelize should use specialized write/create methods where available.
- [`KT-20062`](https://youtrack.jetbrains.com/issue/KT-20062) Parceler should allow otherwise un-parcelable property types in enclosing class.

### Compiler

#### Performance Improvements

- [`KT-20462`](https://youtrack.jetbrains.com/issue/KT-20462) Don't create an array copy for '*<array-constructor-fun>(...)'
#### Fixes

- [`KT-14697`](https://youtrack.jetbrains.com/issue/KT-14697) Use-site targeted annotation is not correctly loaded from class file
- [`KT-17680`](https://youtrack.jetbrains.com/issue/KT-17680) Android Studio and multiple tests in single file
- [`KT-19251`](https://youtrack.jetbrains.com/issue/KT-19251) Stack spilling in constructor arguments breaks Quasar
- [`KT-19592`](https://youtrack.jetbrains.com/issue/KT-19592) Apply JSR 305 default nullability qualifiers with to generic type arguments if they're applicable for TYPE_USE
- [`KT-20016`](https://youtrack.jetbrains.com/issue/KT-20016) JSR 305: default nullability qualifiers are ignored in TYPE_USE and PARAMETER positions
- [`KT-20131`](https://youtrack.jetbrains.com/issue/KT-20131) Support @NonNull(when = NEVER) nullability annotation
- [`KT-20158`](https://youtrack.jetbrains.com/issue/KT-20158) Preserve flexibility for Java types annotated with @NonNull(when = UNKNOWN)
- [`KT-20337`](https://youtrack.jetbrains.com/issue/KT-20337) No multifile class facade is generated for files with type aliases only
- [`KT-20387`](https://youtrack.jetbrains.com/issue/KT-20387) Wrong argument generated for accessor call of a protected generic 'operator fun get/set' from base class with primitive type as type parameter
- [`KT-20418`](https://youtrack.jetbrains.com/issue/KT-20418) Wrong code generated for literal long range with mixed integer literal ends
- [`KT-20491`](https://youtrack.jetbrains.com/issue/KT-20491) Incorrect synthetic accessor generated for a generic base class function specialized with primitive type
- [`KT-20651`](https://youtrack.jetbrains.com/issue/KT-20651) "Don't know how to generate outer expression" for enum-values with non-trivial self-closures
- [`KT-20707`](https://youtrack.jetbrains.com/issue/KT-20707) Support when by enum in kotlin scripts
- [`KT-20879`](https://youtrack.jetbrains.com/issue/KT-20879) Compiler problem in when-expressions

### IDE

#### New Features

- [`KT-14175`](https://youtrack.jetbrains.com/issue/KT-14175) Surround with try ... catch (... finally) doesn't work for expressions
- [`KT-15769`](https://youtrack.jetbrains.com/issue/KT-15769) Join lines could "convert to expression body"
- [`KT-19134`](https://youtrack.jetbrains.com/issue/KT-19134) IntelliJ Color Scheme editor - allow changing color of colons and double colons
- [`KT-20308`](https://youtrack.jetbrains.com/issue/KT-20308) New Gradle with Kotlin DSL project wizard
#### Fixes

- [`KT-15932`](https://youtrack.jetbrains.com/issue/KT-15932) Attempt to rename private property finds unrelated usages
- [`KT-18996`](https://youtrack.jetbrains.com/issue/KT-18996) After Kotlin compiler settings change: 'Apply' button doesn't work
- [`KT-19458`](https://youtrack.jetbrains.com/issue/KT-19458) Resolver for 'completion/highlighting in ScriptModuleInfo for build.gradle.kts / JVM' does not know how to resolve LibraryInfo
- [`KT-19474`](https://youtrack.jetbrains.com/issue/KT-19474) Kotlin Gradle Script: highlighting fails on unresolved references
- [`KT-19823`](https://youtrack.jetbrains.com/issue/KT-19823) Kotlin Gradle project import into IntelliJ: import kapt generated classes into classpath
- [`KT-19958`](https://youtrack.jetbrains.com/issue/KT-19958) Android: kotlinOptions from build.gradle are not imported into facet
- [`KT-19972`](https://youtrack.jetbrains.com/issue/KT-19972) AssertionError “Resolver for 'completion/highlighting in ModuleProductionSourceInfo(module=Module: 'kotlin-pure_main') for files dummy.kt for platform JVM' does not know how to resolve SdkInfo“ on copying Kotlin file with kotlin.* imports from other project
- [`KT-20112`](https://youtrack.jetbrains.com/issue/KT-20112) maven dependency type test-jar with scope compile not 
- [`KT-20185`](https://youtrack.jetbrains.com/issue/KT-20185) Stub and PSI element type mismatch for "var nullableSuspend: (suspend (P) -> Unit)? = null"
- [`KT-20199`](https://youtrack.jetbrains.com/issue/KT-20199) Cut action is not available during indexing
- [`KT-20331`](https://youtrack.jetbrains.com/issue/KT-20331) Wrong EAP repository
- [`KT-20346`](https://youtrack.jetbrains.com/issue/KT-20346) Can't build tests in common code due to missing org.jetbrains.kotlin:kotlin-test-js testCompile dependency in JS
- [`KT-20419`](https://youtrack.jetbrains.com/issue/KT-20419) Android Studio plugin 1.1.50 show multiple gutter icon for the same item
- [`KT-20519`](https://youtrack.jetbrains.com/issue/KT-20519) Error “Parameter specified as non-null is null: method ModuleGrouperKt.isQualifiedModuleNamesEnabled” on creating Gradle (Kotlin DSL) project from scratch
- [`KT-20550`](https://youtrack.jetbrains.com/issue/KT-20550) Spring: "Navigate to autowired candidates" gutter action is missed (IDEA 2017.3)
- [`KT-20566`](https://youtrack.jetbrains.com/issue/KT-20566) Spring: "Navigate to the spring beans declaration" gutter action for `@ComponentScan` is missed (IDEA 2017.3)
- [`KT-20621`](https://youtrack.jetbrains.com/issue/KT-20621) Provide automatic migration from JetRunConfigurationType to KotlinRunConfigurationType
- [`KT-20648`](https://youtrack.jetbrains.com/issue/KT-20648) Do we need a separate ProjectImportProvider for gradle kotlin dsl projects?
- [`KT-20782`](https://youtrack.jetbrains.com/issue/KT-20782) Non-atomic trees update
- [`KT-20789`](https://youtrack.jetbrains.com/issue/KT-20789) Can't navigate to inline call/inline use site when runner is delegated to Gradle
- [`KT-20843`](https://youtrack.jetbrains.com/issue/KT-20843) Kotlin TypeDeclarationProvider may stop other declarations providers execution
- [`KT-20929`](https://youtrack.jetbrains.com/issue/KT-20929) Import Project from Gradle wizard: the same page is shown twice

### IDE. Completion

- [`KT-16383`](https://youtrack.jetbrains.com/issue/KT-16383) IllegalStateException: Failed to create expression from text: '<init>' on choosing ByteArray from completion list
- [`KT-18458`](https://youtrack.jetbrains.com/issue/KT-18458) Spring: code completion does not suggest bean names inside `@Qualifier` before function parameter
- [`KT-20256`](https://youtrack.jetbrains.com/issue/KT-20256) java.lang.Throwable “Invalid range specified” on editing template inside string literal

### IDE. Inspections and Intentions

#### New Features

- [`KT-14695`](https://youtrack.jetbrains.com/issue/KT-14695) Simplify comparison intention produces meaningless statement for assert()
- [`KT-17204`](https://youtrack.jetbrains.com/issue/KT-17204) Add `Assign to property quickfix`
- [`KT-18220`](https://youtrack.jetbrains.com/issue/KT-18220) Add data modifier to a class quickfix
- [`KT-18742`](https://youtrack.jetbrains.com/issue/KT-18742) Add quick-fix for CANNOT_CHECK_FOR_ERASED
- [`KT-19735`](https://youtrack.jetbrains.com/issue/KT-19735) Add quickfix for type mismatch that converts Sequence/Array/List
- [`KT-20259`](https://youtrack.jetbrains.com/issue/KT-20259) Show warning if arrays are compared by '!='
#### Fixes

- [`KT-10546`](https://youtrack.jetbrains.com/issue/KT-10546) Wrong "Unused property" warning on using inline object syntax
- [`KT-16394`](https://youtrack.jetbrains.com/issue/KT-16394) "Convert reference to lambda" generates wrong code
- [`KT-16808`](https://youtrack.jetbrains.com/issue/KT-16808) Intention "Remove unnecessary parantheses" is erroneously proposed for elvis operator on LHS of `in` operator if RHS of elvis is return with value
- [`KT-17437`](https://youtrack.jetbrains.com/issue/KT-17437) Class highlighted as unused even if Companion methods/fields really used
- [`KT-19377`](https://youtrack.jetbrains.com/issue/KT-19377) Inspections are run for Kotlin Gradle DSL sources
- [`KT-19420`](https://youtrack.jetbrains.com/issue/KT-19420) Kotlin Gradle script editor: suggestion to import required class from stdlib fails with AE: ResolverForProjectImpl.descriptorForModule()
- [`KT-19626`](https://youtrack.jetbrains.com/issue/KT-19626) (Specify type explicitly) Descriptor was not found for VALUE_PARAMETER
- [`KT-19674`](https://youtrack.jetbrains.com/issue/KT-19674) 'Convert property initializer to getter' intention fails on incompilable initializer with AssertionError at SpecifyTypeExplicitlyIntention$Companion.addTypeAnnotationWithTemplate() 
- [`KT-19782`](https://youtrack.jetbrains.com/issue/KT-19782) Surround with if else doesn't work for expressions
- [`KT-20010`](https://youtrack.jetbrains.com/issue/KT-20010) 'Replace safe access expression with 'if' expression' IDEA Kotlin plugin intention may failed
- [`KT-20104`](https://youtrack.jetbrains.com/issue/KT-20104) "Recursive property accessor" reports false positive when property reference is used in the assignment
- [`KT-20218`](https://youtrack.jetbrains.com/issue/KT-20218) AE on calling intention “Convert to secondary constructor” for already referred argument 
- [`KT-20231`](https://youtrack.jetbrains.com/issue/KT-20231) False positive 'Redundant override' when delegated member hides super type override
- [`KT-20261`](https://youtrack.jetbrains.com/issue/KT-20261) Incorrect "Redundant Unit return type" inspection for Nothing-typed expression
- [`KT-20315`](https://youtrack.jetbrains.com/issue/KT-20315) "call chain on collection type may be simplified" generates code that does not compile
- [`KT-20333`](https://youtrack.jetbrains.com/issue/KT-20333) Assignment can be lifted out of try is applied too broadly
- [`KT-20366`](https://youtrack.jetbrains.com/issue/KT-20366) Code cleanup: some inspections are broken 
- [`KT-20369`](https://youtrack.jetbrains.com/issue/KT-20369) Inspection messages with INFORMATION highlight type are shown in Code Inspect
- [`KT-20409`](https://youtrack.jetbrains.com/issue/KT-20409) useless warning "Remove curly braces" for Chinese character
- [`KT-20417`](https://youtrack.jetbrains.com/issue/KT-20417) Converting property getter to block body doesn't insert explicit return type

### IDE. Refactorings

#### Performance Improvements

- [`KT-18823`](https://youtrack.jetbrains.com/issue/KT-18823) Move class to a separate file is very slow in 'kotlin' project
- [`KT-20205`](https://youtrack.jetbrains.com/issue/KT-20205) Invoke MoveKotlinDeclarationsProcessor.findUsages() under progress
#### Fixes

- [`KT-15840`](https://youtrack.jetbrains.com/issue/KT-15840) Introduce type alias: don't change not-nullable type with nullable typealias
- [`KT-17949`](https://youtrack.jetbrains.com/issue/KT-17949) Rename private fun should not search it out of scope
- [`KT-18196`](https://youtrack.jetbrains.com/issue/KT-18196) Refactor / Copy: the copy is formatted
- [`KT-18594`](https://youtrack.jetbrains.com/issue/KT-18594) Refactor / Extract (Functional) Parameter are available for annotation arguments, but fail with AE: "Body element is not found"
- [`KT-19439`](https://youtrack.jetbrains.com/issue/KT-19439) Kotlin introduce parameter causes exception
- [`KT-19909`](https://youtrack.jetbrains.com/issue/KT-19909) copy a kotlin class removes imports and other modifications
- [`KT-19949`](https://youtrack.jetbrains.com/issue/KT-19949) AssertionError „Resolver for 'project source roots and libraries for platform JVM' does not know how to resolve ModuleProductionSourceInfo“ through MoveConflictChecker.getModuleDescriptor() on copying Kotlin file from other project
- [`KT-20092`](https://youtrack.jetbrains.com/issue/KT-20092) Refactor / Copy: copy of .kt file removes all the blank lines and 'hanging' comments
- [`KT-20335`](https://youtrack.jetbrains.com/issue/KT-20335) Refactor → Extract Type Parameter: “AWT events are not allowed inside write action” after processing duplicates
- [`KT-20402`](https://youtrack.jetbrains.com/issue/KT-20402) Throwable “PsiElement(IDENTIFIER) by KotlinInplaceParameterIntroducer” on calling Refactor → Extract Parameter for default values
- [`KT-20403`](https://youtrack.jetbrains.com/issue/KT-20403) AE “Body element is not found” on calling Refactor → Extract Parameter for default values in constructor of class without body

### JavaScript

#### Fixes

- [`KT-8285`](https://youtrack.jetbrains.com/issue/KT-8285) JS: don't generate tmp when only need one component
- [`KT-14549`](https://youtrack.jetbrains.com/issue/KT-14549) JS: Non-local returns from secondary constructors don't work
- [`KT-15294`](https://youtrack.jetbrains.com/issue/KT-15294) JS: parse error in `js()` function
- [`KT-17450`](https://youtrack.jetbrains.com/issue/KT-17450) PlatformDependent members of collections are compiled in JS
- [`KT-18010`](https://youtrack.jetbrains.com/issue/KT-18010) JS: JsName annotation in interfaces can cause runtime exception
- [`KT-18063`](https://youtrack.jetbrains.com/issue/KT-18063) Inlining does not work properly in JS for suspend functions from another module
- [`KT-18548`](https://youtrack.jetbrains.com/issue/KT-18548) JS: wrong string interpolation with generic or Any parameters
- [`KT-19794`](https://youtrack.jetbrains.com/issue/KT-19794) runtime crash with empty object (Javascript) 
- [`KT-19818`](https://youtrack.jetbrains.com/issue/KT-19818) JS: generate paths relative to .map file by default (unless "-source-map-prefix" is used)
- [`KT-19906`](https://youtrack.jetbrains.com/issue/KT-19906) JS: rename compiler option "-source-map-source-roots" to avoid misleading since sourcemaps have field called "sourceRoot"
- [`KT-20287`](https://youtrack.jetbrains.com/issue/KT-20287) Functions don't actually return Unit in Kotlin-JS -> unexpected null problems vs JDK version
- [`KT-20451`](https://youtrack.jetbrains.com/issue/KT-20451) KotlinJs - interface function with default parameter, overridden by implementor, can't be found at runtime
- [`KT-20650`](https://youtrack.jetbrains.com/issue/KT-20650) JS: compiler crashes in Java 9 with NoClassDefFoundError
- [`KT-20653`](https://youtrack.jetbrains.com/issue/KT-20653) JS: compiler crashes in Java 9 with TranslationRuntimeException
- [`KT-20820`](https://youtrack.jetbrains.com/issue/KT-20820) JS: IDEA project doesn't generate paths relative to .map

### Libraries

- [`KT-20596`](https://youtrack.jetbrains.com/issue/KT-20596) 'synchronized' does not allow non-local return in Kotlin JS
- [`KT-20600`](https://youtrack.jetbrains.com/issue/KT-20600) Typo in POMs for kotlin-runtime

### Tools

- [`KT-19692`](https://youtrack.jetbrains.com/issue/KT-19692) kotlin-jpa plugin doesn't support @MappedSuperclass annotation
- [`KT-20030`](https://youtrack.jetbrains.com/issue/KT-20030) Parcelize can directly reference writeToParcel and CREATOR for final, non-Parcelize Parcelable types in same compilation unit.
- [`KT-19742`](https://youtrack.jetbrains.com/issue/KT-19742) [Android extensions] Calling clearFindViewByIdCache causes NPE
- [`KT-19749`](https://youtrack.jetbrains.com/issue/KT-19749) Android extensions + Parcelable: NoSuchMethodError on attempt to pack into parcel a serializable object
- [`KT-20026`](https://youtrack.jetbrains.com/issue/KT-20026) Parcelize overrides describeContents despite being already implemented.
- [`KT-20027`](https://youtrack.jetbrains.com/issue/KT-20027) Parcelize uses wrong classloader when reading parcelable type.
- [`KT-20029`](https://youtrack.jetbrains.com/issue/KT-20029) Parcelize should not directly reference parcel methods on types outside compilation unit
- [`KT-20032`](https://youtrack.jetbrains.com/issue/KT-20032) Parcelize does not respect type nullability in case of Parcelize parcelables

### Tools. Gradle

- [`KT-3463`](https://youtrack.jetbrains.com/issue/KT-3463) Gradle plugin ignores kotlin compile options changes
- [`KT-16299`](https://youtrack.jetbrains.com/issue/KT-16299) Gradle build does not recompile annotated classes on changing compiler's plugins configuration
- [`KT-16764`](https://youtrack.jetbrains.com/issue/KT-16764) Kotlin Gradle plugin should replicate task dependencies of Java source directories
- [`KT-17564`](https://youtrack.jetbrains.com/issue/KT-17564) Applying Kotlin's Gradle plugin results in src/main/java being listed twice in sourceSets.main.allSource
- [`KT-17674`](https://youtrack.jetbrains.com/issue/KT-17674) Test code is not compiled incrementally when main is changed
- [`KT-18765`](https://youtrack.jetbrains.com/issue/KT-18765) Move incremental compilation message from Gradle's warning to info logging level
- [`KT-20036`](https://youtrack.jetbrains.com/issue/KT-20036) Gradle tasks up-to-date-ness

### Tools. J2K

- [`KT-19565`](https://youtrack.jetbrains.com/issue/KT-19565) Java code using Iterator#remove converted to red code
- [`KT-19651`](https://youtrack.jetbrains.com/issue/KT-19651) Java class with static-only methods can contain 'protected' members

### Tools. JPS

- [`KT-20082`](https://youtrack.jetbrains.com/issue/KT-20082) Java 9: incremental build reports bogus error for reference to Kotlin source
- [`KT-20671`](https://youtrack.jetbrains.com/issue/KT-20671) Kotlin plugin compiler exception when compiling under JDK9

### Tools. Maven

- [`KT-20064`](https://youtrack.jetbrains.com/issue/KT-20064) Maven + Java 9: compile task warns about module-info in the output path
- [`KT-20400`](https://youtrack.jetbrains.com/issue/KT-20400) Do not output module name, version and related information by default in Maven builds

### Tools. REPL

- [`KT-20167`](https://youtrack.jetbrains.com/issue/KT-20167) JDK 9 `unresolved supertypes: Object` when working with Kotlin Scripting API

### Tools. kapt

- [`KT-17923`](https://youtrack.jetbrains.com/issue/KT-17923) Reference to Dagger generated class is highlighted red
- [`KT-18923`](https://youtrack.jetbrains.com/issue/KT-18923) Kapt: Do not use the Kotlin error message collector to issue errors from kapt
- [`KT-19097`](https://youtrack.jetbrains.com/issue/KT-19097) Request: Decent support of `kapt.kotlin.generated` on Intellij/Android Studio
- [`KT-20877`](https://youtrack.jetbrains.com/issue/KT-20877) Butterknife: UninitializedPropertyAccessException: "lateinit property has not been initialized" for field annotated with `@BindView`.

## 1.1.50

### Android

- [`KT-14800`](https://youtrack.jetbrains.com/issue/KT-14800) Kotlin Lint: `@SuppressLint` annotation on local variable is ignored
- [`KT-16600`](https://youtrack.jetbrains.com/issue/KT-16600) False positive "For methods, permission annotation should specify one of `value`, `anyOf` or `allOf`"
- [`KT-16834`](https://youtrack.jetbrains.com/issue/KT-16834) Android Lint: Bogus warning on @setparam:StringRes
- [`KT-17785`](https://youtrack.jetbrains.com/issue/KT-17785) Kotlin Lint: "Incorrect support annotation usage" does not pick the value of const val
- [`KT-18837`](https://youtrack.jetbrains.com/issue/KT-18837) Android Lint: Collection.removeIf is not flagged when used on RealmList
- [`KT-18893`](https://youtrack.jetbrains.com/issue/KT-18893) Android support annotations (ColorInt, etc) cannot be used on properties: "does not apply for type void"
- [`KT-18997`](https://youtrack.jetbrains.com/issue/KT-18997) KLint: False positive "Could not find property setter method setLevel on java.lang.Object" if using elvis with return on RHS
- [`KT-19671`](https://youtrack.jetbrains.com/issue/KT-19671) UAST: Parameter annotations not provided for val parameters

### Compiler

#### Performance Improvements

- [`KT-17963`](https://youtrack.jetbrains.com/issue/KT-17963) Unnecessary boxing in case of primitive comparison to object
- [`KT-18589`](https://youtrack.jetbrains.com/issue/KT-18589) 'Equality check can be used instead of elvis' produces code that causes boxing
- [`KT-18693`](https://youtrack.jetbrains.com/issue/KT-18693) Optimize in-expression with optimizable range in RHS
- [`KT-18721`](https://youtrack.jetbrains.com/issue/KT-18721) Improve code generation for if-in-primitive-literal expression ('if (expr in low .. high)') 
- [`KT-18818`](https://youtrack.jetbrains.com/issue/KT-18818) Optimize null cases in `when` statement to avoid Intrinsics usage
- [`KT-18834`](https://youtrack.jetbrains.com/issue/KT-18834) Do not create ranges for 'x in low..high' where type of x doesn't match range element type
- [`KT-19029`](https://youtrack.jetbrains.com/issue/KT-19029) Use specialized equality implementations for 'when'
- [`KT-19149`](https://youtrack.jetbrains.com/issue/KT-19149) Use 'for-in-until' loop in intrinsic array constructors
- [`KT-19252`](https://youtrack.jetbrains.com/issue/KT-19252) Use 'for-in-until' loop for 'for-in-rangeTo' loops with constant upper bounds when possible
- [`KT-19256`](https://youtrack.jetbrains.com/issue/KT-19256) Destructuring assignment generates redundant code for temporary variable nullification
- [`KT-19457`](https://youtrack.jetbrains.com/issue/KT-19457) Extremely slow analysis for file with deeply nested lambdas
#### Fixes

- [`KT-10754`](https://youtrack.jetbrains.com/issue/KT-10754) Bogus unresolved extension function
- [`KT-11739`](https://youtrack.jetbrains.com/issue/KT-11739) Incorrect error message on getValue operator with KProperty<Something> parameter
- [`KT-11834`](https://youtrack.jetbrains.com/issue/KT-11834) INAPPLICABLE_LATEINIT_MODIFIER is confusing for a generic type parameter with nullable (default) upper bound
- [`KT-11963`](https://youtrack.jetbrains.com/issue/KT-11963) Exception: recursive call in a lazy value under LockBasedStorageManager
- [`KT-12737`](https://youtrack.jetbrains.com/issue/KT-12737) Confusing error message when calling extension function with an implicit receiver, passing value parameter of wrong type
- [`KT-12767`](https://youtrack.jetbrains.com/issue/KT-12767) Too much unnecessary information in "N type arguments expected" error message
- [`KT-12796`](https://youtrack.jetbrains.com/issue/KT-12796) IllegalArgumentException on referencing inner class constructor on an outer class instance
- [`KT-12899`](https://youtrack.jetbrains.com/issue/KT-12899) Platform null escapes if passed as an extension receiver to an inline function
- [`KT-13665`](https://youtrack.jetbrains.com/issue/KT-13665) Generic componentN() functions should provide better diagnostics when type cannot be inferred
- [`KT-16223`](https://youtrack.jetbrains.com/issue/KT-16223) Confusing diagnostic for local inline functions
- [`KT-16246`](https://youtrack.jetbrains.com/issue/KT-16246) CompilationException caused by intersection type overload and wrong type parameter
- [`KT-16746`](https://youtrack.jetbrains.com/issue/KT-16746) DslMarker doesn't work with typealiases
- [`KT-17444`](https://youtrack.jetbrains.com/issue/KT-17444) Accessors generated for private file functions should respect @JvmName
- [`KT-17464`](https://youtrack.jetbrains.com/issue/KT-17464) Calling super constructor with generic function call in arguments fails at runtime
- [`KT-17725`](https://youtrack.jetbrains.com/issue/KT-17725) java.lang.VerifyError when both dispatch receiver and extension receiver have smart casts
- [`KT-17745`](https://youtrack.jetbrains.com/issue/KT-17745) Unfriendly error message on creating an instance of interface via typealias
- [`KT-17748`](https://youtrack.jetbrains.com/issue/KT-17748) Equality for class literals of primitive types is not preserved by reification
- [`KT-17879`](https://youtrack.jetbrains.com/issue/KT-17879) Comparing T::class from a reified generic with a Class<*> and KClass<*> variable in when statement is broken
- [`KT-18356`](https://youtrack.jetbrains.com/issue/KT-18356) Argument reordering in super class constructor call for anonymous object fails with VerifyError
- [`KT-18819`](https://youtrack.jetbrains.com/issue/KT-18819) JVM BE treats 'if (a in low .. high)' as 'if (a >= low && a <= high)', so 'high' can be non-evaluated
- [`KT-18855`](https://youtrack.jetbrains.com/issue/KT-18855) Convert "Remove at from annotation argument" inspection into compiler error & quick-fix
- [`KT-18858`](https://youtrack.jetbrains.com/issue/KT-18858) Exception within typealias expansion with dynamic used as one of type arguments
- [`KT-18902`](https://youtrack.jetbrains.com/issue/KT-18902) NullPointerException when using provideDelegate with properties of the base class at runtime
- [`KT-18940`](https://youtrack.jetbrains.com/issue/KT-18940) REPEATED_ANNOTATION is reported on wrong location for typealias arguments
- [`KT-18944`](https://youtrack.jetbrains.com/issue/KT-18944) Type annotations are lost for dynamic type
- [`KT-18966`](https://youtrack.jetbrains.com/issue/KT-18966) Report full package FQ name in compilation errors related to visibility
- [`KT-18971`](https://youtrack.jetbrains.com/issue/KT-18971) Missing non-null assertion for platform type passed as a receiver to the member extension function
- [`KT-18982`](https://youtrack.jetbrains.com/issue/KT-18982) NoSuchFieldError on access to imported object property from the declaring object itself
- [`KT-18985`](https://youtrack.jetbrains.com/issue/KT-18985) Too large highlighting range for UNCHECKED_CAST
- [`KT-19058`](https://youtrack.jetbrains.com/issue/KT-19058) VerifyError: no CHECKAST on dispatch receiver of the synthetic property defined in Java interface
- [`KT-19100`](https://youtrack.jetbrains.com/issue/KT-19100) VerifyError: missing CHECKCAST on extension receiver of the extension property
- [`KT-19115`](https://youtrack.jetbrains.com/issue/KT-19115) Report warnings on usages of JSR 305-annotated declarations which rely on incorrect or missing nullability information
- [`KT-19128`](https://youtrack.jetbrains.com/issue/KT-19128) java.lang.VerifyError with smart cast to String from Any
- [`KT-19180`](https://youtrack.jetbrains.com/issue/KT-19180) Bad SAM conversion of Java interface causing ClassCastException: [...] cannot be cast to kotlin.jvm.functions.Function1
- [`KT-19205`](https://youtrack.jetbrains.com/issue/KT-19205) Poor diagnostic message for deprecated class referenced through typealias
- [`KT-19367`](https://youtrack.jetbrains.com/issue/KT-19367) NSFE if property with name matching companion object property name is referenced within lambda
- [`KT-19434`](https://youtrack.jetbrains.com/issue/KT-19434) Object inheriting generic class with a reified type parameter looses method annotations
- [`KT-19475`](https://youtrack.jetbrains.com/issue/KT-19475) AnalyserException in case of combination of `while (true)` + stack-spilling (coroutines/try-catch expressions)
- [`KT-19528`](https://youtrack.jetbrains.com/issue/KT-19528) Compiler exception on inline suspend function inside a generic class
- [`KT-19575`](https://youtrack.jetbrains.com/issue/KT-19575) Deprecated typealias is not marked as such in access to companion object
- [`KT-19601`](https://youtrack.jetbrains.com/issue/KT-19601) UPPER_BOUND_VIOLATED reported on type alias expansion in a recursive upper bound on a type parameter
- [`KT-19814`](https://youtrack.jetbrains.com/issue/KT-19814) Runtime annotations for open suspend function are not generated correctly
- [`KT-19892`](https://youtrack.jetbrains.com/issue/KT-19892) Overriding remove method on inheritance from TreeSet<Int>
- [`KT-19910`](https://youtrack.jetbrains.com/issue/KT-19910) Nullability assertions removed when inlining an anonymous object in crossinline lambda
- [`KT-19985`](https://youtrack.jetbrains.com/issue/KT-19985) JSR 305: nullability qualifier of Java function return type detected incorrectly in case of using annotation nickname

### IDE

#### New Features

- [`KT-6676`](https://youtrack.jetbrains.com/issue/KT-6676) Show enum constant ordinal in quick doc like in Java
- [`KT-12246`](https://youtrack.jetbrains.com/issue/KT-12246) Kotlin source files are not highlighted in Gradle build output in IntelliJ
#### Performance Improvements

- [`KT-19670`](https://youtrack.jetbrains.com/issue/KT-19670) When computing argument hints, don't resolve call if none of the arguments are unclear expressions
#### Fixes

- [`KT-9288`](https://youtrack.jetbrains.com/issue/KT-9288) Call hierarchy ends on function call inside local val initializer expression
- [`KT-9669`](https://youtrack.jetbrains.com/issue/KT-9669) Join Lines should add semicolon when joining statements into the same line
- [`KT-14346`](https://youtrack.jetbrains.com/issue/KT-14346) IllegalArgumentException on attempt to call Show Hierarchy view on lambda
- [`KT-14428`](https://youtrack.jetbrains.com/issue/KT-14428) AssertionError in KotlinCallerMethodsTreeStructure.<init> on attempt to call Hierarchy view
- [`KT-19466`](https://youtrack.jetbrains.com/issue/KT-19466) Kotlin based Gradle build not recognized when added as a module
- [`KT-18083`](https://youtrack.jetbrains.com/issue/KT-18083) IDEA: Support extension main function
- [`KT-18863`](https://youtrack.jetbrains.com/issue/KT-18863) Formatter should add space after opening brace in a single-line enum declaration
- [`KT-19024`](https://youtrack.jetbrains.com/issue/KT-19024) build.gradle.kts is not supported as project
- [`KT-19124`](https://youtrack.jetbrains.com/issue/KT-19124) Creating source file with directory/package throws AE: "Write access is allowed inside write-action only" at NewKotlinFileAction$Companion.findOrCreateTarget()
- [`KT-19154`](https://youtrack.jetbrains.com/issue/KT-19154) Completion and auto-import does not suggest companion object members when inside an extension function
- [`KT-19202`](https://youtrack.jetbrains.com/issue/KT-19202) Applying 'ReplaceWith' fix in type alias can change program behaviour
- [`KT-19209`](https://youtrack.jetbrains.com/issue/KT-19209) "Stub and PSI element type mismatch" in when receiver type is annotated with @receiver
- [`KT-19277`](https://youtrack.jetbrains.com/issue/KT-19277) Optimize imports on the fly should not work in test data files
- [`KT-19278`](https://youtrack.jetbrains.com/issue/KT-19278) Optimize imports on the fly should not remove incomplete import while it's being typed
- [`KT-19322`](https://youtrack.jetbrains.com/issue/KT-19322) Script editor: Move Statement Down/Up can't move one out of top level lambda
- [`KT-19451`](https://youtrack.jetbrains.com/issue/KT-19451) "Unresolved reference" with Kotlin Android Extensions when layout defines the Android namespace as something other than "android"
- [`KT-19492`](https://youtrack.jetbrains.com/issue/KT-19492) Java 9: references from unnamed module to not exported classes of named module are compiled, but red in the editor
- [`KT-19493`](https://youtrack.jetbrains.com/issue/KT-19493) Java 9: references from named module to classes of unnamed module are not compiled, but green in the editor
- [`KT-19843`](https://youtrack.jetbrains.com/issue/KT-19843) Performance warning: LineMarker is supposed to be registered for leaf elements only
- [`KT-19889`](https://youtrack.jetbrains.com/issue/KT-19889) KotlinGradleModel : Unsupported major.minor version 52.0
- [`KT-19885`](https://youtrack.jetbrains.com/issue/KT-19885) 200% CPU for some time on Kotlin sources (PackagePartClassUtils.hasTopLevelCallables())
- [`KT-19901`](https://youtrack.jetbrains.com/issue/KT-19901) KotlinLanguageInjector#getLanguagesToInject can cancel any progress in which it was invoked
- [`KT-19903`](https://youtrack.jetbrains.com/issue/KT-19903) Copy Reference works incorrectly for const val
- [`KT-20153`](https://youtrack.jetbrains.com/issue/KT-20153) Kotlin facet: Java 9 `-Xadd-modules` setting produces more and more identical sub-elements of `<additionalJavaModules>` in .iml file

### IDE. Completion

- [`KT-8848`](https://youtrack.jetbrains.com/issue/KT-8848) Code completion does not support import aliases
- [`KT-18040`](https://youtrack.jetbrains.com/issue/KT-18040) There is no auto-popup competion after typing "$x." anymore
- [`KT-19015`](https://youtrack.jetbrains.com/issue/KT-19015) Smart completion: parameter list completion is not available when some of parameters are already written

### IDE. Debugger

- [`KT-19429`](https://youtrack.jetbrains.com/issue/KT-19429) Breakpoint appears in random place during debug

### IDE. Inspections and Intentions

#### New Features

- [`KT-4748`](https://youtrack.jetbrains.com/issue/KT-4748) Remove double negation for boolean expressions intention + inspection
- [`KT-5878`](https://youtrack.jetbrains.com/issue/KT-5878) Quickfix for "variable initializer is redundant" (VARIABLE_WITH_REDUNDANT_INITIALIZER)
- [`KT-11991`](https://youtrack.jetbrains.com/issue/KT-11991) Kotlin should have an inspection to suggest the simplified format for a no argument lambda
- [`KT-12195`](https://youtrack.jetbrains.com/issue/KT-12195) Quickfix @JvmStatic on main() method in an object
- [`KT-12233`](https://youtrack.jetbrains.com/issue/KT-12233) "Package naming convention" inspection could show warning in .kt sources
- [`KT-12504`](https://youtrack.jetbrains.com/issue/KT-12504) Intention to make open class with only private constructors sealed
- [`KT-12523`](https://youtrack.jetbrains.com/issue/KT-12523) Quick-fix to remove `when` with only `else`
- [`KT-12613`](https://youtrack.jetbrains.com/issue/KT-12613) "Make abstract" on member of open or final class should make abstract both member and class
- [`KT-16033`](https://youtrack.jetbrains.com/issue/KT-16033) Automatically static import the enum value name when "Add remaining branches" on an enum from another class/file
- [`KT-16404`](https://youtrack.jetbrains.com/issue/KT-16404) Create from usage should allow generating nested classes
- [`KT-17322`](https://youtrack.jetbrains.com/issue/KT-17322) Intentions to generate a getter and a setter for a property
- [`KT-17888`](https://youtrack.jetbrains.com/issue/KT-17888) Inspection to warn about suspicious combination of == and ===
- [`KT-18826`](https://youtrack.jetbrains.com/issue/KT-18826) INAPPLICABLE_LATEINIT_MODIFIER should have a quickfix to remove initializer
- [`KT-18965`](https://youtrack.jetbrains.com/issue/KT-18965) Add quick-fix for USELESS_IS_CHECK
- [`KT-19126`](https://youtrack.jetbrains.com/issue/KT-19126) Add quickfix for 'Property initializes are not allowed in interfaces'
- [`KT-19282`](https://youtrack.jetbrains.com/issue/KT-19282) Support "flip equals" intention for String.equals extension from stdlib
- [`KT-19428`](https://youtrack.jetbrains.com/issue/KT-19428) Add inspection for redundant overrides that only call the super method
- [`KT-19514`](https://youtrack.jetbrains.com/issue/KT-19514) Redundant getter / setter inspection
#### Fixes

- [`KT-13985`](https://youtrack.jetbrains.com/issue/KT-13985) "Add remaining branches" action does not use back-ticks correctly
- [`KT-15422`](https://youtrack.jetbrains.com/issue/KT-15422) Reduce irrelevant reporting of Destructure inspection
- [`KT-17480`](https://youtrack.jetbrains.com/issue/KT-17480) Create from usage in expression body of override function should take base type into account
- [`KT-18482`](https://youtrack.jetbrains.com/issue/KT-18482) "Move lambda argument to parenthesis" action generate uncompilable code
- [`KT-18665`](https://youtrack.jetbrains.com/issue/KT-18665) "Use destructuring declaration" must not be suggested for invisible properties
- [`KT-18666`](https://youtrack.jetbrains.com/issue/KT-18666) "Use destructuring declaration" should not be reported on a variable used in destructuring declaration only
- [`KT-18978`](https://youtrack.jetbrains.com/issue/KT-18978) Intention Move to class body generates incorrect code for vararg val/var
- [`KT-19006`](https://youtrack.jetbrains.com/issue/KT-19006) Inspection message "Equality check can be used instead of elvis" is slightly confusing
- [`KT-19011`](https://youtrack.jetbrains.com/issue/KT-19011) Unnecessary import for companion object property with extension function type is automatically inserted
- [`KT-19299`](https://youtrack.jetbrains.com/issue/KT-19299) Quickfix to correct overriding function signature keeps java NotNull annotations
- [`KT-19614`](https://youtrack.jetbrains.com/issue/KT-19614) Quickfix for INVISIBLE_MEMBER doesn't offer to make member protected if referenced from subclass
- [`KT-19666`](https://youtrack.jetbrains.com/issue/KT-19666) ClassCastException in IfThenToElvisIntention
- [`KT-19704`](https://youtrack.jetbrains.com/issue/KT-19704) Don't remove braces in redundant cascade if
- [`KT-19811`](https://youtrack.jetbrains.com/issue/KT-19811) Internal member incorrectly highlighted as unused
- [`KT-19926`](https://youtrack.jetbrains.com/issue/KT-19926) Naming convention inspections: pattern is validated while edited, PSE at Pattern.error()
- [`KT-19927`](https://youtrack.jetbrains.com/issue/KT-19927) "Package naming convention" inspection checks FQN, but default pattern looks like for simple name

### IDE. Refactorings

- [`KT-17266`](https://youtrack.jetbrains.com/issue/KT-17266) Refactor / Inline Function: reference to member of class containing extension function is inlined wrong
- [`KT-17776`](https://youtrack.jetbrains.com/issue/KT-17776) Inline method of inner class adds 'this' for methods from enclosing class
- [`KT-19161`](https://youtrack.jetbrains.com/issue/KT-19161) Safe delete conflicts are shown incorrectly for local declarations

### JavaScript

#### Performance Improvements

- [`KT-18329`](https://youtrack.jetbrains.com/issue/KT-18329) JS: for loop implementation depends on parentheses
#### Fixes

- [`KT-12970`](https://youtrack.jetbrains.com/issue/KT-12970) Empty block expression result is 'undefined' (expected: 'kotlin.Unit')
- [`KT-13930`](https://youtrack.jetbrains.com/issue/KT-13930) Safe call for a function returning 'Unit' result is 'undefined' or 'null' (instead of 'kotlin.Unit' or 'null')
- [`KT-13932`](https://youtrack.jetbrains.com/issue/KT-13932) 'kotlin.Unit' is not materialized in some functions returning supertype of 'Unit' ('undefined' returned instead)
- [`KT-16408`](https://youtrack.jetbrains.com/issue/KT-16408) JS: Inliner loses imported values when extending a class from another module
- [`KT-17014`](https://youtrack.jetbrains.com/issue/KT-17014) Different results in JVM and JavaScript on Unit-returning functions
- [`KT-17915`](https://youtrack.jetbrains.com/issue/KT-17915) JS: 'kotlin.Unit' is not materialized as result of try-catch block expression with empty catch
- [`KT-18166`](https://youtrack.jetbrains.com/issue/KT-18166) JS: Delegated property named with non-identifier symbols can crash in runtime.
- [`KT-18176`](https://youtrack.jetbrains.com/issue/KT-18176) JS: dynamic type should not allow methods and properties with incorrect identifier symbols
- [`KT-18216`](https://youtrack.jetbrains.com/issue/KT-18216) JS: Unit-returning expression used in loop can cause wrong behavior
- [`KT-18793`](https://youtrack.jetbrains.com/issue/KT-18793) Kotlin Javascript compiler null handling generates if-else block where else is always taken
- [`KT-19108`](https://youtrack.jetbrains.com/issue/KT-19108) JS: Inconsistent behaviour from JVM code when modifying variable whilst calling run on it
- [`KT-19495`](https://youtrack.jetbrains.com/issue/KT-19495) JS: Wrong compilation of nested conditions with if- and when-clauses
- [`KT-19540`](https://youtrack.jetbrains.com/issue/KT-19540) JS: prohibit to use illegal symbols on call site
- [`KT-19542`](https://youtrack.jetbrains.com/issue/KT-19542) JS: delegate field should have unique name otherwise it can be accidentally overwritten 
- [`KT-19712`](https://youtrack.jetbrains.com/issue/KT-19712) KotlinJS - providing default value of lambda-argument produces invalid js-code
- [`KT-19793`](https://youtrack.jetbrains.com/issue/KT-19793) build-crash with external varargs (Javascript)
- [`KT-19821`](https://youtrack.jetbrains.com/issue/KT-19821) JS remap sourcemaps in DCE
- [`KT-19891`](https://youtrack.jetbrains.com/issue/KT-19891) Runtime crash with inline function with reified type parameter and object expression: "T_0 is not defined" (JavaScript)
- [`KT-20005`](https://youtrack.jetbrains.com/issue/KT-20005) Invalid source map with option sourceMapEmbedSources = "always" 

### Libraries

- [`KT-19133`](https://youtrack.jetbrains.com/issue/KT-19133) Specialize `any` and `none` for Collection
- [`KT-18267`](https://youtrack.jetbrains.com/issue/KT-18267) Deprecate CharSequence.size extension function on the JS side
- [`KT-18992`](https://youtrack.jetbrains.com/issue/KT-18992) JS: Missing MutableMap.iterator()
- [`KT-19881`](https://youtrack.jetbrains.com/issue/KT-19881) Expand doc comment of @PublishedApi

### Tools. CLI

- [`KT-18859`](https://youtrack.jetbrains.com/issue/KT-18859) Strange error message when kotlin-embeddable-compiler is run without explicit -kotlin-home
- [`KT-19287`](https://youtrack.jetbrains.com/issue/KT-19287) Common module compilation: K2MetadataCompiler ignores coroutines state

### Tools. Gradle

- [`KT-17150`](https://youtrack.jetbrains.com/issue/KT-17150) Support 'packagePrefix' option in Gradle plugin
- [`KT-19956`](https://youtrack.jetbrains.com/issue/KT-19956) Support incremental compilation to JS in Gradle
- [`KT-13918`](https://youtrack.jetbrains.com/issue/KT-13918) Cannot access internal classes/methods in androidTest source set in an Android library module
- [`KT-17355`](https://youtrack.jetbrains.com/issue/KT-17355) Use `archivesBaseName` instead of `project.name` for module names, get rid of `_main` for `main` source set
- [`KT-18183`](https://youtrack.jetbrains.com/issue/KT-18183) Kotlin gradle plugin uses compile task output as "friends directory"
- [`KT-19248`](https://youtrack.jetbrains.com/issue/KT-19248) Documentation suggested way to enable coroutines (gradle) doesn't work
- [`KT-19397`](https://youtrack.jetbrains.com/issue/KT-19397) local.properties file not closed by KotlinProperties.kt

### Tools. Incremental Compile

- [`KT-19580`](https://youtrack.jetbrains.com/issue/KT-19580) IC does not detect  non-nested sealed class addition

### Tools. J2K

- [`KT-10375`](https://youtrack.jetbrains.com/issue/KT-10375) 0xFFFFFFFFFFFFFFFFL conversion issue
- [`KT-13552`](https://youtrack.jetbrains.com/issue/KT-13552) switch-to-when conversion creates broken code
- [`KT-17379`](https://youtrack.jetbrains.com/issue/KT-17379) Converting multiline expressions creates dangling operations
- [`KT-18232`](https://youtrack.jetbrains.com/issue/KT-18232) Kotlin code converter misses annotations
- [`KT-18786`](https://youtrack.jetbrains.com/issue/KT-18786) Convert Kotlin to Java generates error: Variable cannot be initialized before declaration
- [`KT-19523`](https://youtrack.jetbrains.com/issue/KT-19523) J2K produce invalid code when convert some numbers

### Tools. JPS

- [`KT-17397`](https://youtrack.jetbrains.com/issue/KT-17397) Kotlin JPS Builder can mark dirty files already compiled in round
- [`KT-19176`](https://youtrack.jetbrains.com/issue/KT-19176) Java 9: JPS build fails for Kotlin source referring exported Kotlin class from another module: "unresolved supertypes: kotlin.Any"
- [`KT-19833`](https://youtrack.jetbrains.com/issue/KT-19833) Cannot access class/superclass from SDK on compilation of JDK 9 module together with non-9 module

### Tools. REPL

- [`KT-11369`](https://youtrack.jetbrains.com/issue/KT-11369) REPL: Ctrl-C should interrupt the input, Ctrl-D should quit

### Tools. kapt

- [`KT-19996`](https://youtrack.jetbrains.com/issue/KT-19996) Error with 'kotlin-kapt' plugin and dagger2, clean project required

## 1.1.4-3

- [`KT-18062`](https://youtrack.jetbrains.com/issue/KT-18062) SamWithReceiver compiler plugin not used by IntelliJ for .kt files 
- [`KT-18497`](https://youtrack.jetbrains.com/issue/KT-18497) Gradle Kotlin Plugin does not work with the gradle java-library plugin 
- [`KT-19276`](https://youtrack.jetbrains.com/issue/KT-19276) Console spam when opening idea-community project in debug IDEA 
- [`KT-19433`](https://youtrack.jetbrains.com/issue/KT-19433) [Coroutines + Kapt3] Assertion failed in ClassClsStubBuilder.createNestedClassStub 
- [`KT-19680`](https://youtrack.jetbrains.com/issue/KT-19680) kapt3 & Parcelize: Compilation error 
- [`KT-19687`](https://youtrack.jetbrains.com/issue/KT-19687) Kotlin 1.1.4 noarg plugin breaks with sealed classes
- [`KT-19700`](https://youtrack.jetbrains.com/issue/KT-19700) Kapt error after updating to 1.1.4 - stub adds type parameters where there are none
- [`KT-19713`](https://youtrack.jetbrains.com/issue/KT-19713) Mocking of final named suspend methods with mockito fails
- [`KT-19729`](https://youtrack.jetbrains.com/issue/KT-19729) kapt3: not always including argument to @javax.inject.Named in generated stubs
- [`KT-19759`](https://youtrack.jetbrains.com/issue/KT-19759) "Convert to expression body" is not shown in 162 / AS23 branches for multi-liners 
- [`KT-19767`](https://youtrack.jetbrains.com/issue/KT-19767) NPE caused by Map<String, Boolean>?.get 
- [`KT-19769`](https://youtrack.jetbrains.com/issue/KT-19769) PerModulePackageCacheService calls getOrderEntriesForFile() for every file, even those that can't affect Kotlin resolve 
- [`KT-19774`](https://youtrack.jetbrains.com/issue/KT-19774) Provide an opt-out flag for separate classes directories (Gradle 4.0+) 
- [`KT-19847`](https://youtrack.jetbrains.com/issue/KT-19847) if an imported library already exists it should be redetected during gradle import 

## 1.1.4-2

- [`KT-19679`](https://youtrack.jetbrains.com/issue/KT-19679) CompilationException: Couldn't inline method call 'methodName' into... 
- [`KT-19690`](https://youtrack.jetbrains.com/issue/KT-19690) Lazy field in interface default method leads to ClassFormatError 
- [`KT-19716`](https://youtrack.jetbrains.com/issue/KT-19716) Quickdoc `Ctrl+Q` broken while browsing code completion list `Ctrl-Space`
- [`KT-19717`](https://youtrack.jetbrains.com/issue/KT-19717) Library kind incorrectly detected for vertx-web in Kotlin project 
- [`KT-19723`](https://youtrack.jetbrains.com/issue/KT-19723) "Insufficient maximum stack size" during compilation 

## 1.1.4

### Android

#### New Features

- [`KT-11048`](https://youtrack.jetbrains.com/issue/KT-11048) Android Extensions: cannot evaluate expression containing generated properties
#### Performance Improvements

- [`KT-10542`](https://youtrack.jetbrains.com/issue/KT-10542) Android Extensions: No cache for Views
- [`KT-18250`](https://youtrack.jetbrains.com/issue/KT-18250) Android Extensions: Allow to use SparseArray as a View cache
#### Fixes

- [`KT-11051`](https://youtrack.jetbrains.com/issue/KT-11051) Android Extensions: completion of generated properties is unclear for ambiguous ids
- [`KT-14086`](https://youtrack.jetbrains.com/issue/KT-14086) Android-extensions not generated using flavors dimension
- [`KT-14912`](https://youtrack.jetbrains.com/issue/KT-14912) Lint: "Code contains STOPSHIP marker" ignores suppress annotation
- [`KT-15164`](https://youtrack.jetbrains.com/issue/KT-15164) Kotlin Lint: problems in delegate expression are not reported
- [`KT-16934`](https://youtrack.jetbrains.com/issue/KT-16934) Android Extensions fails to compile when importing synthetic properties for layouts in other modules
- [`KT-17641`](https://youtrack.jetbrains.com/issue/KT-17641) Problem with Kotlin Android Extensions and Gradle syntax
- [`KT-17783`](https://youtrack.jetbrains.com/issue/KT-17783) Kotlin Lint: quick fixes to add inapplicable @RequiresApi and @SuppressLint make code incompilable
- [`KT-17786`](https://youtrack.jetbrains.com/issue/KT-17786) Kotlin Lint: "Surround with if()" quick fix is not suggested for single expression `get()`
- [`KT-17787`](https://youtrack.jetbrains.com/issue/KT-17787) Kotlin Lint: "Add @TargetApi" quick fix is not suggested for top level property accessor
- [`KT-17788`](https://youtrack.jetbrains.com/issue/KT-17788) Kotlin Lint: "Surround with if()" quick fix corrupts code in case of destructuring declaration
- [`KT-17890`](https://youtrack.jetbrains.com/issue/KT-17890) [kotlin-android-extensions] Renaming layout file does not rename import
- [`KT-18012`](https://youtrack.jetbrains.com/issue/KT-18012) Kotlin Android Extensions generates `@NotNull` properties for views present in a configuration and potentially missing in another
- [`KT-18545`](https://youtrack.jetbrains.com/issue/KT-18545) Accessing to synthetic properties on smart casted Android components crashed compiler

### Compiler

#### New Features

- [`KT-10942`](https://youtrack.jetbrains.com/issue/KT-10942) Support meta-annotations from JSR 305 for nullability qualifiers
- [`KT-14187`](https://youtrack.jetbrains.com/issue/KT-14187) Redundant "is" check is not detected
- [`KT-16603`](https://youtrack.jetbrains.com/issue/KT-16603) Support `inline suspend` function
- [`KT-17585`](https://youtrack.jetbrains.com/issue/KT-17585) Generate state machine for named functions in their bodies
#### Performance Improvements

- [`KT-3098`](https://youtrack.jetbrains.com/issue/KT-3098) Generate efficient comparisons
- [`KT-6247`](https://youtrack.jetbrains.com/issue/KT-6247) Optimization for 'in' and '..'
- [`KT-7571`](https://youtrack.jetbrains.com/issue/KT-7571) Don't box Double instance to call hashCode on Java 8
- [`KT-9900`](https://youtrack.jetbrains.com/issue/KT-9900) Optimize range operations for 'until' extension from stdlib
- [`KT-11959`](https://youtrack.jetbrains.com/issue/KT-11959) Unnceessary boxing/unboxing due to Comparable.compareTo
- [`KT-12158`](https://youtrack.jetbrains.com/issue/KT-12158) Optimize away boxing when comparing nullable primitive type value to primitive value
- [`KT-13682`](https://youtrack.jetbrains.com/issue/KT-13682) Reuse StringBuilder for concatenation and string interpolation
- [`KT-14323`](https://youtrack.jetbrains.com/issue/KT-14323) IntelliJ lockup when using Apache Spark UDF
- [`KT-14375`](https://youtrack.jetbrains.com/issue/KT-14375) Kotlin compiler failure with spark when creating a flexible type for scala.Function22
- [`KT-15235`](https://youtrack.jetbrains.com/issue/KT-15235) Escaped characters in template strings are generating inefficient implementations
- [`KT-17280`](https://youtrack.jetbrains.com/issue/KT-17280) Inline constant expressions in string templates
- [`KT-17903`](https://youtrack.jetbrains.com/issue/KT-17903) Generate 'for-in-indices' as a precondition loop
- [`KT-18157`](https://youtrack.jetbrains.com/issue/KT-18157) Optimize out trivial INSTANCEOF checks
- [`KT-18162`](https://youtrack.jetbrains.com/issue/KT-18162) Do not check nullability assertions twice for effectively same value
- [`KT-18164`](https://youtrack.jetbrains.com/issue/KT-18164) Do not check nullability for values that have been already checked with !!
- [`KT-18478`](https://youtrack.jetbrains.com/issue/KT-18478) Unnecessary nullification of bound variables
- [`KT-18558`](https://youtrack.jetbrains.com/issue/KT-18558) Flatten nested string concatenation
- [`KT-18777`](https://youtrack.jetbrains.com/issue/KT-18777) Unnecessary boolean negation generated for 'if (expr !in range)'
#### Fixes

- [`KT-1809`](https://youtrack.jetbrains.com/issue/KT-1809) Confusing diagnostics when wrong number of type arguments are specified and there are several callee candiates
- [`KT-2007`](https://youtrack.jetbrains.com/issue/KT-2007) Improve diagnostics when + in not resolved on a pair of nullable ints
- [`KT-5066`](https://youtrack.jetbrains.com/issue/KT-5066) Bad diagnostic message for ABSTRACT_MEMBER_NOT_IMPLEMENTED for (companion) object
- [`KT-5511`](https://youtrack.jetbrains.com/issue/KT-5511) Inconsistent handling of inner enum
- [`KT-7773`](https://youtrack.jetbrains.com/issue/KT-7773) Disallow to explicitly extend Enum<E> class
- [`KT-7975`](https://youtrack.jetbrains.com/issue/KT-7975) Unclear error message when redundant type arguments supplied
- [`KT-8340`](https://youtrack.jetbrains.com/issue/KT-8340) vararg in a property setter must be an error
- [`KT-8612`](https://youtrack.jetbrains.com/issue/KT-8612) Incorrect error message for var extension property without getter or setter
- [`KT-8829`](https://youtrack.jetbrains.com/issue/KT-8829) Type parameter of a class is not resolved in the constructor parameter's default value
- [`KT-8845`](https://youtrack.jetbrains.com/issue/KT-8845) Bogus diagnostic on infix operation "in"
- [`KT-9282`](https://youtrack.jetbrains.com/issue/KT-9282) Improve diagnostic on overload resolution ambiguity when a nullable argument is passed to non-null parameter
- [`KT-10045`](https://youtrack.jetbrains.com/issue/KT-10045) Not specific enough compiler error message in case of trying to call overloaded private methods
- [`KT-10164`](https://youtrack.jetbrains.com/issue/KT-10164) Incorrect error message for external inline method
- [`KT-10248`](https://youtrack.jetbrains.com/issue/KT-10248) Smart casts: Misleading error on overloaded function call
- [`KT-10657`](https://youtrack.jetbrains.com/issue/KT-10657) Confusing diagnostic when trying to invoke value as a function
- [`KT-10839`](https://youtrack.jetbrains.com/issue/KT-10839) Weird diagnostics on callable reference of unresolved class
- [`KT-11119`](https://youtrack.jetbrains.com/issue/KT-11119) Confusing error message when overloaded method is called on nullable receiver
- [`KT-12408`](https://youtrack.jetbrains.com/issue/KT-12408) Generic information lost for override values
- [`KT-12551`](https://youtrack.jetbrains.com/issue/KT-12551) Report "unused expression" on unused bound double colon expressions
- [`KT-13749`](https://youtrack.jetbrains.com/issue/KT-13749) Error highlighting range for no 'override' modifier is bigger than needed
- [`KT-14598`](https://youtrack.jetbrains.com/issue/KT-14598) Do not report "member is final and cannot be overridden" when overriding something from final class
- [`KT-14633`](https://youtrack.jetbrains.com/issue/KT-14633) "If must have both main and else branches" diagnostic range is too high
- [`KT-14647`](https://youtrack.jetbrains.com/issue/KT-14647) Confusing error message "'@receiver:' annotations could be applied only to extension function or extension property declarations"
- [`KT-14927`](https://youtrack.jetbrains.com/issue/KT-14927) TCE in QualifiedExpressionResolver
- [`KT-15243`](https://youtrack.jetbrains.com/issue/KT-15243) Report deprecation on usages of type alias expanded to a deprecated class
- [`KT-15804`](https://youtrack.jetbrains.com/issue/KT-15804) Prohibit having duplicate parameter names in functional types
- [`KT-15810`](https://youtrack.jetbrains.com/issue/KT-15810) destructuring declarations don't work in scripts on the top level
- [`KT-15931`](https://youtrack.jetbrains.com/issue/KT-15931) IllegalStateException: ClassDescriptor of superType should not be null: T by a
- [`KT-16016`](https://youtrack.jetbrains.com/issue/KT-16016) Compiler failure with NO_EXPECTED_TYPE
- [`KT-16448`](https://youtrack.jetbrains.com/issue/KT-16448) Inline suspend functions with inlined suspend invocations are miscompiled (VerifyError, ClassNotFound)
- [`KT-16576`](https://youtrack.jetbrains.com/issue/KT-16576) Wrong code generated with skynet benchmark
- [`KT-17007`](https://youtrack.jetbrains.com/issue/KT-17007) Kotlin is not optimizing away unreachable code based on const vals
- [`KT-17188`](https://youtrack.jetbrains.com/issue/KT-17188) Do not propose to specify constructor invocation for classes without an accessible constructor
- [`KT-17611`](https://youtrack.jetbrains.com/issue/KT-17611) Unnecessary "Name shadowed" warning on parameter of local function or local class member
- [`KT-17692`](https://youtrack.jetbrains.com/issue/KT-17692) NPE in compiler when calling KClass.java on function result of type Unit
- [`KT-17820`](https://youtrack.jetbrains.com/issue/KT-17820) False "useless cast" when target type is flexible
- [`KT-17972`](https://youtrack.jetbrains.com/issue/KT-17972) Anonymous class generated from lambda captures its outer and tries to set nonexistent this$0 field.
- [`KT-18029`](https://youtrack.jetbrains.com/issue/KT-18029) typealias not working in .kts files
- [`KT-18085`](https://youtrack.jetbrains.com/issue/KT-18085) Compilation Error:Kotlin: [Internal Error] kotlin.TypeCastException: null cannot be cast to non-null type com.intellij.psi.PsiElement
- [`KT-18115`](https://youtrack.jetbrains.com/issue/KT-18115) Generic inherited classes in different packages with coroutine causes java.lang.VerifyError: Bad local variable type
- [`KT-18189`](https://youtrack.jetbrains.com/issue/KT-18189) Incorrect generic signature generated for implementation methods overriding special built-ins
- [`KT-18234`](https://youtrack.jetbrains.com/issue/KT-18234) Top-level variables in script aren't local variables
- [`KT-18413`](https://youtrack.jetbrains.com/issue/KT-18413) Strange compiler error - probably incremental compiler
- [`KT-18486`](https://youtrack.jetbrains.com/issue/KT-18486) Superfluos generation of suspend function state-machine because of inner suspension of different coroutine
- [`KT-18598`](https://youtrack.jetbrains.com/issue/KT-18598) Report error on access to declarations from non-exported packages and from inaccessible modules on Java 9
- [`KT-18698`](https://youtrack.jetbrains.com/issue/KT-18698) java.lang.IllegalStateException: resolveToInstruction: incorrect index -1 for label L12 in subroutine
- [`KT-18702`](https://youtrack.jetbrains.com/issue/KT-18702) Proguard warning with Kotlin 1.2-M1
- [`KT-18728`](https://youtrack.jetbrains.com/issue/KT-18728) Integer method reference application fails with CompilationException: Back-end (JVM) Internal error
- [`KT-18845`](https://youtrack.jetbrains.com/issue/KT-18845) Exception on building gradle project with collection literals
- [`KT-18867`](https://youtrack.jetbrains.com/issue/KT-18867) Getting constant "VerifyError: Operand stack underflow" from Kotlin plugin
- [`KT-18916`](https://youtrack.jetbrains.com/issue/KT-18916) Strange bytecode generated for 'null' passed as SAM adapter for Java interface
- [`KT-18983`](https://youtrack.jetbrains.com/issue/KT-18983) Coroutines: miscompiled suspend for loop (local variables are not spilled around suspension points)
- [`KT-19175`](https://youtrack.jetbrains.com/issue/KT-19175) Compiler generates different bytecode when classes are compiled separately or together
- [`KT-19246`](https://youtrack.jetbrains.com/issue/KT-19246) Using generic inline function inside inline extension function throws java.lang.VerifyError: Bad return type
- [`KT-19419`](https://youtrack.jetbrains.com/issue/KT-19419) Support JSR 305 meta-annotations in libraries even when JSR 305 JAR is not on the classpath

### IDE

#### New Features

- [`KT-2638`](https://youtrack.jetbrains.com/issue/KT-2638) Inline property (with accessors) refactoring
- [`KT-7107`](https://youtrack.jetbrains.com/issue/KT-7107) Rename refactoring for labels
- [`KT-9818`](https://youtrack.jetbrains.com/issue/KT-9818) Code style for method expression bodies
- [`KT-11994`](https://youtrack.jetbrains.com/issue/KT-11994) Data flow analysis support for Kotlin in IntelliJ
- [`KT-14126`](https://youtrack.jetbrains.com/issue/KT-14126) Code style wrapping options for enum constants
- [`KT-14929`](https://youtrack.jetbrains.com/issue/KT-14929) Deprecated ReplaceWith for type aliases
- [`KT-14950`](https://youtrack.jetbrains.com/issue/KT-14950) Code Style: Wrapping and Braces / "Local variable annotations" setting could be supported
- [`KT-14965`](https://youtrack.jetbrains.com/issue/KT-14965) "Configure Kotlin in project" should support build.gradle.kts
- [`KT-15504`](https://youtrack.jetbrains.com/issue/KT-15504) Add code style options to limit number of blank lines
- [`KT-16558`](https://youtrack.jetbrains.com/issue/KT-16558) Code Style: Add Options for "Spaces Before Parentheses"
- [`KT-18113`](https://youtrack.jetbrains.com/issue/KT-18113) Add new line options to code style for method parameters
- [`KT-18605`](https://youtrack.jetbrains.com/issue/KT-18605) Option to not use continuation indent in chained calls
- [`KT-18607`](https://youtrack.jetbrains.com/issue/KT-18607) Options to put blank lines between 'when' branches
#### Performance Improvements

- [`KT-14606`](https://youtrack.jetbrains.com/issue/KT-14606) Code completion calculates decompiled text when building lookup elements for PSI from compiled classes
- [`KT-17751`](https://youtrack.jetbrains.com/issue/KT-17751) Kotlin slows down java inspections big time
- [`KT-17835`](https://youtrack.jetbrains.com/issue/KT-17835) 10s hang on IDEA project open
- [`KT-18842`](https://youtrack.jetbrains.com/issue/KT-18842) Very slow typing in certain files of Kotlin project
- [`KT-18921`](https://youtrack.jetbrains.com/issue/KT-18921) Configure library kind explicitly
#### Fixes

- [`KT-6610`](https://youtrack.jetbrains.com/issue/KT-6610) Language injection doesn't work with String Interpolation
- [`KT-8893`](https://youtrack.jetbrains.com/issue/KT-8893) Quick documentation shows type for top-level object-type elements, but "no name provided" for local ones
- [`KT-9359`](https://youtrack.jetbrains.com/issue/KT-9359) "Accidental override" error message does not mention class (type) names
- [`KT-10736`](https://youtrack.jetbrains.com/issue/KT-10736) Highlighting usages doesn't work for synthetic properties created by the Android Extensions
- [`KT-11980`](https://youtrack.jetbrains.com/issue/KT-11980) Spring: Generate Constructor, Setter Dependency in XML for Kotlin class: IOE at LightElement.add()
- [`KT-12123`](https://youtrack.jetbrains.com/issue/KT-12123) Formatter: always indent after newline in variable initialization
- [`KT-12910`](https://youtrack.jetbrains.com/issue/KT-12910) spring: create init-method/destroy-method from usage results in IOE
- [`KT-13072`](https://youtrack.jetbrains.com/issue/KT-13072) Kotlin struggles to index JDK 9 classes
- [`KT-13099`](https://youtrack.jetbrains.com/issue/KT-13099) formatting in angle brackets ignored and not fixed
- [`KT-14083`](https://youtrack.jetbrains.com/issue/KT-14083) Formatting of where clasuses
- [`KT-14271`](https://youtrack.jetbrains.com/issue/KT-14271) Value captured in closure doesn't always get highlighted
- [`KT-14561`](https://youtrack.jetbrains.com/issue/KT-14561) Use regular indent for the primary constructor parameters
- [`KT-14974`](https://youtrack.jetbrains.com/issue/KT-14974) "Find Usages" hangs in ExpressionsOfTypeProcessor
- [`KT-15093`](https://youtrack.jetbrains.com/issue/KT-15093) Navigation to library may not work if there's another module in same project that references same jar via a different library
- [`KT-15270`](https://youtrack.jetbrains.com/issue/KT-15270) Quickfix to migrate from @native***
- [`KT-16352`](https://youtrack.jetbrains.com/issue/KT-16352) Create from usage inserts extra space in first step
- [`KT-16725`](https://youtrack.jetbrains.com/issue/KT-16725) Formatter does not fix spaces before square brackets
- [`KT-16999`](https://youtrack.jetbrains.com/issue/KT-16999) "Parameter info" shows duplicates on toString
- [`KT-17357`](https://youtrack.jetbrains.com/issue/KT-17357) BuiltIns for module build with project LV settings, not with facet module settings
- [`KT-17394`](https://youtrack.jetbrains.com/issue/KT-17394) Core formatting is wrong for expression body properties
- [`KT-17759`](https://youtrack.jetbrains.com/issue/KT-17759) Breakpoints not working in JS
- [`KT-17771`](https://youtrack.jetbrains.com/issue/KT-17771) Kotlin IntelliJ plugin should resolve Gradle script classpath asynchronously
- [`KT-17818`](https://youtrack.jetbrains.com/issue/KT-17818) Formatting of long constructors is inconsistent with Kotlin code conventions
- [`KT-17849`](https://youtrack.jetbrains.com/issue/KT-17849) Automatically insert trimMargin() or trimIndent() on enter in multi-line strings
- [`KT-17855`](https://youtrack.jetbrains.com/issue/KT-17855) Main function is shown as unused
- [`KT-17894`](https://youtrack.jetbrains.com/issue/KT-17894) String `trimIndent` support inserts wrong indent in some cases
- [`KT-17942`](https://youtrack.jetbrains.com/issue/KT-17942) Enter in multiline string with injection doesn't add a proper indent
- [`KT-17956`](https://youtrack.jetbrains.com/issue/KT-17956) Type hints for properties that only consist of constructor calls don't add much value
- [`KT-18006`](https://youtrack.jetbrains.com/issue/KT-18006) Copying part of string literal with escape sequences converts this sequences to special characters
- [`KT-18030`](https://youtrack.jetbrains.com/issue/KT-18030) Parameters hints: `kotlin.arrayOf(elements)` should be on the blacklist by default
- [`KT-18059`](https://youtrack.jetbrains.com/issue/KT-18059) Kotlin Lint: False positive error "requires api level 24" for interface method with body
- [`KT-18149`](https://youtrack.jetbrains.com/issue/KT-18149) PIEAE "Element class CompositeElement of type REFERENCE_EXPRESSION (class KtNameReferenceExpressionElementType)" at PsiInvalidElementAccessException.createByNode()
- [`KT-18151`](https://youtrack.jetbrains.com/issue/KT-18151) Do not import jdkHome from Gradle/Maven model
- [`KT-18158`](https://youtrack.jetbrains.com/issue/KT-18158) Expand selection should select the comment after expression getter on the same line
- [`KT-18186`](https://youtrack.jetbrains.com/issue/KT-18186) Create function from usage should infer expected return type
- [`KT-18221`](https://youtrack.jetbrains.com/issue/KT-18221) AE at org.jetbrains.kotlin.analyzer.ResolverForProjectImpl.descriptorForModule
- [`KT-18269`](https://youtrack.jetbrains.com/issue/KT-18269) Find Usages fails to find operator-style usages of `invoke()` defined as extension
- [`KT-18298`](https://youtrack.jetbrains.com/issue/KT-18298) spring: strange menu at "Navige to the spring bean" gutter
- [`KT-18309`](https://youtrack.jetbrains.com/issue/KT-18309) Join lines breaks code
- [`KT-18373`](https://youtrack.jetbrains.com/issue/KT-18373) Facet: can't change target platform between JVM versions
- [`KT-18376`](https://youtrack.jetbrains.com/issue/KT-18376) Maven import fails with NPE at ArgumentUtils.convertArgumentsToStringList() if `jvmTarget` setting is absent
- [`KT-18418`](https://youtrack.jetbrains.com/issue/KT-18418) Generate equals and hashCode should be available for classes without properties
- [`KT-18429`](https://youtrack.jetbrains.com/issue/KT-18429) Android strings resources folding false positives
- [`KT-18444`](https://youtrack.jetbrains.com/issue/KT-18444) Type hints don't work for destructuring declarations
- [`KT-18475`](https://youtrack.jetbrains.com/issue/KT-18475) Gradle/IntelliJ sync can result in IntelliJ modules getting gradle artifacts added to the classpath, breaking compilation
- [`KT-18479`](https://youtrack.jetbrains.com/issue/KT-18479) Can't find usages of invoke operator with vararg parameter
- [`KT-18501`](https://youtrack.jetbrains.com/issue/KT-18501) Quick Documentation doesn't show when @Supress("unused") is above the javadoc
- [`KT-18566`](https://youtrack.jetbrains.com/issue/KT-18566) Long find usages for operators when there are several operators for the same type
- [`KT-18596`](https://youtrack.jetbrains.com/issue/KT-18596) "Generate hashCode" produces poorly formatted code
- [`KT-18725`](https://youtrack.jetbrains.com/issue/KT-18725) Android: `kotlin-language` facet disappears on reopening the project
- [`KT-18974`](https://youtrack.jetbrains.com/issue/KT-18974) Type hints shouldn't appear for negative literals
- [`KT-19054`](https://youtrack.jetbrains.com/issue/KT-19054) Lags in typing in string literal
- [`KT-19062`](https://youtrack.jetbrains.com/issue/KT-19062) Member navigation doesn't work in expression bodies of getters with inferred property type
- [`KT-19210`](https://youtrack.jetbrains.com/issue/KT-19210) Command line flags like -Xload-jsr305-annotations have no effect in IDE
- [`KT-19303`](https://youtrack.jetbrains.com/issue/KT-19303) Project language version settings are used to analyze libraries, disabling module-specific analysis flags like -Xjsr305-annotations

### IDE. Completion

- [`KT-8208`](https://youtrack.jetbrains.com/issue/KT-8208) Support static member completion with not-imported-yet classes
- [`KT-12104`](https://youtrack.jetbrains.com/issue/KT-12104) Smart completion does not work with "invoke" when receiver is expression
- [`KT-17074`](https://youtrack.jetbrains.com/issue/KT-17074) Incorrect autocomplete suggestions for contexts affected by @DslMarker
- [`KT-18443`](https://youtrack.jetbrains.com/issue/KT-18443) IntelliJ not handling default constructor argument from companion object well
- [`KT-19191`](https://youtrack.jetbrains.com/issue/KT-19191) Disable completion binding context caching by default

### IDE. Debugger

- [`KT-14845`](https://youtrack.jetbrains.com/issue/KT-14845) Evaluate expression freezes debugger while evaluating filter, for time proportional to number of elements in collection.
- [`KT-17120`](https://youtrack.jetbrains.com/issue/KT-17120) Evaluate expression: cannot find local variable
- [`KT-18453`](https://youtrack.jetbrains.com/issue/KT-18453) Support 'Step over' and 'Force step over' action for suspended calls
- [`KT-18577`](https://youtrack.jetbrains.com/issue/KT-18577) Debug: Smart Step Into does not enter functions passed as variable or parameter: "Method invoke() has not been called"
- [`KT-18632`](https://youtrack.jetbrains.com/issue/KT-18632) Debug: Smart Step Into does not enter functions passed as variable or parameter when signature of lambda and parameter doesn't match
- [`KT-18949`](https://youtrack.jetbrains.com/issue/KT-18949) Can't stop on breakpoint after call to inline in Android Studio
- [`KT-19403`](https://youtrack.jetbrains.com/issue/KT-19403) 30s complete hangs of application on breakpoints stop attempt

### IDE. Inspections and Intentions

#### New Features

- [`KT-12119`](https://youtrack.jetbrains.com/issue/KT-12119) Intention to replace .addAll() on a mutable collection with +=
- [`KT-13436`](https://youtrack.jetbrains.com/issue/KT-13436) Replace 'when' with return: handle case when all branches jump out (return Nothing)
- [`KT-13458`](https://youtrack.jetbrains.com/issue/KT-13458) Cascade "replace with return" for if/when expressions
- [`KT-13676`](https://youtrack.jetbrains.com/issue/KT-13676) Add better quickfix for 'let' and 'error  'only not null or asserted calls are allowed'
- [`KT-14648`](https://youtrack.jetbrains.com/issue/KT-14648) Add quickfix for @receiver annotation being applied to extension member instead of extension type
- [`KT-14799`](https://youtrack.jetbrains.com/issue/KT-14799) Add inspection to simplify successive null checks into safe-call and null check
- [`KT-14900`](https://youtrack.jetbrains.com/issue/KT-14900) "Lift return out of when/if" should work with control flow expressions
- [`KT-15257`](https://youtrack.jetbrains.com/issue/KT-15257) JS: quickfix to migrate from @native to external
- [`KT-15368`](https://youtrack.jetbrains.com/issue/KT-15368) Add intention to convert Boolean? == true to ?: false and vice versa
- [`KT-15893`](https://youtrack.jetbrains.com/issue/KT-15893) "Array property in data class" inspection could have a quick fix to generate `equals()` and `hashcode()`
- [`KT-15958`](https://youtrack.jetbrains.com/issue/KT-15958) Inspection to inline "unnecessary" variables
- [`KT-16063`](https://youtrack.jetbrains.com/issue/KT-16063) Inspection to suggest converting block body to expression body
- [`KT-17198`](https://youtrack.jetbrains.com/issue/KT-17198) Inspection to replace filter calls followed by functions with a predicate variant
- [`KT-17580`](https://youtrack.jetbrains.com/issue/KT-17580) Add remaning branches intention should be available for sealed classes
- [`KT-17583`](https://youtrack.jetbrains.com/issue/KT-17583) Support "Declaration access can be weaker"  inspection for kotlin properties
- [`KT-17815`](https://youtrack.jetbrains.com/issue/KT-17815) Quick-fix "Replace with safe call & elvis"
- [`KT-17842`](https://youtrack.jetbrains.com/issue/KT-17842) Add quick-fix for NO_CONSTRUCTOR error
- [`KT-17895`](https://youtrack.jetbrains.com/issue/KT-17895) Inspection to replace 'a .. b-1' with 'a until b'
- [`KT-17919`](https://youtrack.jetbrains.com/issue/KT-17919) Add "Simplify if" intention/inspection
- [`KT-17920`](https://youtrack.jetbrains.com/issue/KT-17920) Add intention/inspection removing redundant spread operator for arrayOf call
- [`KT-17970`](https://youtrack.jetbrains.com/issue/KT-17970) Intention actions to format parameter/argument list placing each on separate line
- [`KT-18236`](https://youtrack.jetbrains.com/issue/KT-18236) Add inspection for potentially wrongly placed unary operators
- [`KT-18274`](https://youtrack.jetbrains.com/issue/KT-18274) Add inspection to replace map+joinTo with joinTo(transform)
- [`KT-18386`](https://youtrack.jetbrains.com/issue/KT-18386) Inspection to detect safe calls of orEmpty()
- [`KT-18438`](https://youtrack.jetbrains.com/issue/KT-18438) Add inspection for empty ranges with start > endInclusive
- [`KT-18460`](https://youtrack.jetbrains.com/issue/KT-18460) Add intentions to apply De Morgan's laws to conditions
- [`KT-18516`](https://youtrack.jetbrains.com/issue/KT-18516) Add inspection to detect & remove redundant Unit
- [`KT-18517`](https://youtrack.jetbrains.com/issue/KT-18517) Provide "Remove explicit type" inspection for some obvious cases
- [`KT-18534`](https://youtrack.jetbrains.com/issue/KT-18534) Quick-fix to add empty brackets after primary constructor
- [`KT-18540`](https://youtrack.jetbrains.com/issue/KT-18540) Add quickfix to create data class property from usage in destructuring declaration
- [`KT-18615`](https://youtrack.jetbrains.com/issue/KT-18615) Inspection to replace if with three or more options with when
- [`KT-18749`](https://youtrack.jetbrains.com/issue/KT-18749) Inspection for useless operations on collection with not-null elements
- [`KT-18830`](https://youtrack.jetbrains.com/issue/KT-18830) "Lift return out of try"
#### Fixes

- [`KT-11906`](https://youtrack.jetbrains.com/issue/KT-11906) Spring: "Create getter / setter" quick fixes cause IOE at LightElement.add()
- [`KT-12524`](https://youtrack.jetbrains.com/issue/KT-12524) Wrong "redundant semicolon" for semicolon inside an enum class before the companion object declaration
- [`KT-13870`](https://youtrack.jetbrains.com/issue/KT-13870) Wrong caption "Change to property access" for Quick Fix to convert class instantiation to object reference
- [`KT-13886`](https://youtrack.jetbrains.com/issue/KT-13886) Unused variable intention should remove constant initializer
- [`KT-14092`](https://youtrack.jetbrains.com/issue/KT-14092) "Make <modifier>" intention inserts modifier between annotation and class keywords
- [`KT-14093`](https://youtrack.jetbrains.com/issue/KT-14093) "Make <modifier>" intention available only on modifier when declaration already have a visibility modifier
- [`KT-14643`](https://youtrack.jetbrains.com/issue/KT-14643) "Add non-null asserted call" quickfix should not be offered on literal null constants
- [`KT-15242`](https://youtrack.jetbrains.com/issue/KT-15242) Create type from usage should include constraints into base types
- [`KT-16046`](https://youtrack.jetbrains.com/issue/KT-16046) Globally unused typealias is not marked as such
- [`KT-16069`](https://youtrack.jetbrains.com/issue/KT-16069) "Simplify if statement" doesn't work in specific case
- [`KT-17026`](https://youtrack.jetbrains.com/issue/KT-17026) "Replace explicit parameter" should not be shown on destructuring declaration
- [`KT-17092`](https://youtrack.jetbrains.com/issue/KT-17092) Create function from usage works incorrectly with ::class expression
- [`KT-17353`](https://youtrack.jetbrains.com/issue/KT-17353) "Create type parameter from usage" should not be offered for unresolved annotations
- [`KT-17537`](https://youtrack.jetbrains.com/issue/KT-17537) Create from Usage should suggest Boolean return type if function is used in if condition
- [`KT-17623`](https://youtrack.jetbrains.com/issue/KT-17623) "Remove explicit type arguments" is too conservative sometimes
- [`KT-17651`](https://youtrack.jetbrains.com/issue/KT-17651) Create property from usage should make lateinit var
- [`KT-17726`](https://youtrack.jetbrains.com/issue/KT-17726) Nullability quick-fixes operate incorrectly with implicit nullable receiver
- [`KT-17740`](https://youtrack.jetbrains.com/issue/KT-17740) CME at MakeOverriddenMemberOpenFix.getText()
- [`KT-18506`](https://youtrack.jetbrains.com/issue/KT-18506) Inspection on final Kotlin spring components is false positive
- [`KT-17823`](https://youtrack.jetbrains.com/issue/KT-17823) Intention "Make private" and friends should respect modifier order
- [`KT-17917`](https://youtrack.jetbrains.com/issue/KT-17917) Superfluos suggestion to add replaceWith for DeprecationLevel.HIDDEN
- [`KT-17954`](https://youtrack.jetbrains.com/issue/KT-17954) Setting error severity on "Kotlin | Function or property has platform type" does not show up as error in IDE
- [`KT-17996`](https://youtrack.jetbrains.com/issue/KT-17996) Android Studio Default Constructor Command Removes Custom Setter
- [`KT-18033`](https://youtrack.jetbrains.com/issue/KT-18033) Do not suggest to cast expression to non-nullable type when it's the same as !!
- [`KT-18035`](https://youtrack.jetbrains.com/issue/KT-18035) Quickfix for "CanBePrimaryConstructorProperty" does not work correctly with vararg constructor properties
- [`KT-18044`](https://youtrack.jetbrains.com/issue/KT-18044) "Move to class body" intention: better placement in the body
- [`KT-18074`](https://youtrack.jetbrains.com/issue/KT-18074) Suggestion in Intention 'Specify return type explicitly' doesn't support generic type parameter
- [`KT-18120`](https://youtrack.jetbrains.com/issue/KT-18120) Recursive property accessor gives false positives
- [`KT-18148`](https://youtrack.jetbrains.com/issue/KT-18148) Incorrect, not working quickfix - final and can't be overridden
- [`KT-18160`](https://youtrack.jetbrains.com/issue/KT-18160) Circular autofix actions between redundant modality and non-final variable with allopen plugin
- [`KT-18194`](https://youtrack.jetbrains.com/issue/KT-18194) "Protected in final" inspection works incorrectly with all-open
- [`KT-18195`](https://youtrack.jetbrains.com/issue/KT-18195) "Redundant modality" is not reported with all-open
- [`KT-18197`](https://youtrack.jetbrains.com/issue/KT-18197) Redundant "make open" for abstract class member with all-open
- [`KT-18253`](https://youtrack.jetbrains.com/issue/KT-18253) Wrong location of "Redundant 'toString()' call in string template" quickfix
- [`KT-18347`](https://youtrack.jetbrains.com/issue/KT-18347) Nullability quickfixes are not helpful when using invoke operator
- [`KT-18368`](https://youtrack.jetbrains.com/issue/KT-18368) "Cast expression x to Type" fails for expression inside argument list
- [`KT-18375`](https://youtrack.jetbrains.com/issue/KT-18375) Backticked function name is suggested to be renamed to the same name
- [`KT-18385`](https://youtrack.jetbrains.com/issue/KT-18385) Spring: Generate Dependency causes Throwable "AWT events are not allowed inside write action"
- [`KT-18407`](https://youtrack.jetbrains.com/issue/KT-18407) "Move property to constructor" action should not appear on properties declared in interfaces
- [`KT-18425`](https://youtrack.jetbrains.com/issue/KT-18425) Make <modifier> intention inserts modifier at wrong position for sealed class
- [`KT-18529`](https://youtrack.jetbrains.com/issue/KT-18529) Add '!!' quick fix applies to wrong expression on operation 'in'
- [`KT-18642`](https://youtrack.jetbrains.com/issue/KT-18642) Remove unused parameter intention transfers default value to another parameter
- [`KT-18683`](https://youtrack.jetbrains.com/issue/KT-18683) Wrong 'equals' is generated for Kotlin JS project
- [`KT-18709`](https://youtrack.jetbrains.com/issue/KT-18709) "Lift assignment out of if" changes semantics
- [`KT-18711`](https://youtrack.jetbrains.com/issue/KT-18711) "Lift return out of when" changes semantics for functional type
- [`KT-18717`](https://youtrack.jetbrains.com/issue/KT-18717) Report MemberVisibilityCanBePrivate on visibility modifier if present
- [`KT-18722`](https://youtrack.jetbrains.com/issue/KT-18722) Correct "before" sample in description for intention Convert to enum class
- [`KT-18723`](https://youtrack.jetbrains.com/issue/KT-18723) Correct "after" sample for intention Convert to apply
- [`KT-18852`](https://youtrack.jetbrains.com/issue/KT-18852) "Lift return out of when" does not work for exhaustive when without else
- [`KT-18928`](https://youtrack.jetbrains.com/issue/KT-18928) In IDE, "Replace 'if' expression with safe access expression incorrectly replace expression when using property
- [`KT-18954`](https://youtrack.jetbrains.com/issue/KT-18954) Kotlin plugin updater activates in headless mode
- [`KT-18970`](https://youtrack.jetbrains.com/issue/KT-18970) Do not report "property can be private" on JvmField properties
- [`KT-19232`](https://youtrack.jetbrains.com/issue/KT-19232) Replace Math.min with coerceAtMost intention is broken
- [`KT-19272`](https://youtrack.jetbrains.com/issue/KT-19272) Do not report "function can be private" on JUnit 3 test methods

### IDE. Refactorings

#### New Features

- [`KT-4379`](https://youtrack.jetbrains.com/issue/KT-4379) Support renaming import alias
- [`KT-8180`](https://youtrack.jetbrains.com/issue/KT-8180) Copy Class
- [`KT-17547`](https://youtrack.jetbrains.com/issue/KT-17547) Refactor / Move: Problems Detected / Conflicts in View: only referencing file is mentioned
#### Fixes

- [`KT-9054`](https://youtrack.jetbrains.com/issue/KT-9054) Copy / pasting a Kotlin file should bring up the Copy Class dialog
- [`KT-13437`](https://youtrack.jetbrains.com/issue/KT-13437) Change signature replaces return type with Unit when it's not requested
- [`KT-15859`](https://youtrack.jetbrains.com/issue/KT-15859) Renaming variables or functions with backticks removes the backticks
- [`KT-16180`](https://youtrack.jetbrains.com/issue/KT-16180) Opened decompiled editor blocks refactoring of involved element
- [`KT-17062`](https://youtrack.jetbrains.com/issue/KT-17062) Field/property inline refactoring works incorrectly with Kotlin & Java usages
- [`KT-17128`](https://youtrack.jetbrains.com/issue/KT-17128) Refactor / Rename in the last position of label name throws Throwable "PsiElement(IDENTIFIER) by com.intellij.refactoring.rename.inplace.MemberInplaceRenamer" at InplaceRefactoring.buildTemplateAndStart()
- [`KT-17489`](https://youtrack.jetbrains.com/issue/KT-17489) Refactor / Inline Property: cannot inline val with the following plusAssign
- [`KT-17571`](https://youtrack.jetbrains.com/issue/KT-17571) Refactor / Move warns about using private/internal class from Java, but this is not related to the move
- [`KT-17622`](https://youtrack.jetbrains.com/issue/KT-17622) Refactor / Inline Function loses type arguments
- [`KT-18034`](https://youtrack.jetbrains.com/issue/KT-18034) Copy Class refactoring replaces all usages of the class with the new one!
- [`KT-18076`](https://youtrack.jetbrains.com/issue/KT-18076) Refactor / Rename on alias of Java class suggests to select between refactoring handlers
- [`KT-18096`](https://youtrack.jetbrains.com/issue/KT-18096) Refactor / Rename on import alias usage of a class member element tries to rename the element itself
- [`KT-18098`](https://youtrack.jetbrains.com/issue/KT-18098) Refactor / Copy can't generate proper import if original code uses import alias of java member
- [`KT-18135`](https://youtrack.jetbrains.com/issue/KT-18135) Refactor: no Problems Detected for Copy/Move source using platform type to another platform's module
- [`KT-18200`](https://youtrack.jetbrains.com/issue/KT-18200) Refactor / Copy is enabled for Java source selected with Kotlin file, but not for Java source selected with Kotlin class
- [`KT-18241`](https://youtrack.jetbrains.com/issue/KT-18241) Refactor / Copy (and Move) fails for chain of lambdas and invoke()'s with IllegalStateException: "No selector for PARENTHESIZED" at KtSimpleNameReference.changeQualifiedName()
- [`KT-18325`](https://youtrack.jetbrains.com/issue/KT-18325) Renaming a parameter name in one implementation silently rename it in all implementations
- [`KT-18390`](https://youtrack.jetbrains.com/issue/KT-18390) Refactor / Copy called for Java class opens only Copy File dialog
- [`KT-18699`](https://youtrack.jetbrains.com/issue/KT-18699) Refactor / Copy, Move loses necessary parentheses
- [`KT-18738`](https://youtrack.jetbrains.com/issue/KT-18738) Misleading quick fix message for an 'open' modifier on an interface member
- [`KT-19130`](https://youtrack.jetbrains.com/issue/KT-19130) Refactor / Inline val: "Show inline dialog for local variables" setting is ignored

### JavaScript

#### Performance Improvements

- [`KT-18331`](https://youtrack.jetbrains.com/issue/KT-18331) JS: compilation performance degrades fast when inlined nested labels are used
#### Fixes

- [`KT-4078`](https://youtrack.jetbrains.com/issue/KT-4078) JS sourcemaps should contain relative path. The relative base & prefix should be set from project/module preferences
- [`KT-8020`](https://youtrack.jetbrains.com/issue/KT-8020) JS: String? plus operator crashes on runtime
- [`KT-13919`](https://youtrack.jetbrains.com/issue/KT-13919) JS: Source map weirdness
- [`KT-15456`](https://youtrack.jetbrains.com/issue/KT-15456) JS: inlining doesn't work for array constructor with size and lambda
- [`KT-16984`](https://youtrack.jetbrains.com/issue/KT-16984) KotlinJS - 1 > 2 > false causes unhandled javascript exception
- [`KT-17285`](https://youtrack.jetbrains.com/issue/KT-17285) JS: wrong result when call function with default parameter overridden by delegation by function from another interface
- [`KT-17445`](https://youtrack.jetbrains.com/issue/KT-17445) JS: minifier for Kotlin JS apps
- [`KT-17476`](https://youtrack.jetbrains.com/issue/KT-17476) JS: Some symbols in identifiers compile, but are not legal
- [`KT-17871`](https://youtrack.jetbrains.com/issue/KT-17871) JS: spread vararg call doesn't work on functions imported with @JsModule
- [`KT-18027`](https://youtrack.jetbrains.com/issue/KT-18027) JS: Illegal symbols are possible in backticked labels, but cause crash in runtime and malformed js code
- [`KT-18032`](https://youtrack.jetbrains.com/issue/KT-18032) JS: Illegal symbols are possible in backticked package names, but cause crash in runtime and malformed js code
- [`KT-18169`](https://youtrack.jetbrains.com/issue/KT-18169) JS: reified generic backticked type name containing non-identifier symbols causes malformed JS and runtime crash
- [`KT-18187`](https://youtrack.jetbrains.com/issue/KT-18187) JS backend does not copy non-abstract method of interface to implementing class in some cases
- [`KT-18201`](https://youtrack.jetbrains.com/issue/KT-18201) JS backend generates wrong code for inline function which calls non-inline function from another module
- [`KT-18652`](https://youtrack.jetbrains.com/issue/KT-18652) JS: Objects from same package but from different libraries are incorrectly accessed

### Libraries

- [`KT-18526`](https://youtrack.jetbrains.com/issue/KT-18526) Small typo in documentation for kotlin-stdlib / kotlin.collections / retainAll
- [`KT-18624`](https://youtrack.jetbrains.com/issue/KT-18624) JS: Bad return type for Promise.all
- [`KT-18670`](https://youtrack.jetbrains.com/issue/KT-18670) Incorrect documentation of MutableMap.values
- [`KT-18671`](https://youtrack.jetbrains.com/issue/KT-18671) Provide implementation for CoroutineContext.Element functions.

### Reflection

- [`KT-15222`](https://youtrack.jetbrains.com/issue/KT-15222) Support reflection for local delegated properties
- [`KT-14094`](https://youtrack.jetbrains.com/issue/KT-14094) IllegalAccessException when try to get members annotated by private annotation with parameter
- [`KT-16399`](https://youtrack.jetbrains.com/issue/KT-16399) Embedded Tomcat fails to load Class-Path: kotlin-runtime.jar from kotlin-reflect-1.0.6.jar
- [`KT-16810`](https://youtrack.jetbrains.com/issue/KT-16810) Do not include incorrect ExternalOverridabilityCondition service file into kotlin-reflect.jar
- [`KT-18404`](https://youtrack.jetbrains.com/issue/KT-18404) “KotlinReflectionInternalError: This callable does not support a default call” when function or constructor has more than 32 parameters
- [`KT-18476`](https://youtrack.jetbrains.com/issue/KT-18476) KClass<*>.superclasses does not contain Any::class
- [`KT-18480`](https://youtrack.jetbrains.com/issue/KT-18480) Kotlin Reflection unable to call getter of protected read-only val with custom getter from parent class

### Tools

- [`KT-18245`](https://youtrack.jetbrains.com/issue/KT-18245) NoArg: IllegalAccessError on instantiating sealed class child via Java reflection
- [`KT-18874`](https://youtrack.jetbrains.com/issue/KT-18874) Crash during compilation after switching to 1.1.3-release-IJ2017.2-2
- [`KT-19047`](https://youtrack.jetbrains.com/issue/KT-19047) Private methods are final event if used with the all-open-plugin.

### Tools. CLI

- [`KT-17297`](https://youtrack.jetbrains.com/issue/KT-17297) Report error when CLI compiler is not being run under Java 8+
- [`KT-18599`](https://youtrack.jetbrains.com/issue/KT-18599) Support -Xmodule-path and -Xadd-modules arguments for modular compilation on Java 9
- [`KT-18794`](https://youtrack.jetbrains.com/issue/KT-18794) kotlinc-jvm prints an irrelevant error message when a JVM Home directory does not exist
- [`KT-3045`](https://youtrack.jetbrains.com/issue/KT-3045) Report error instead of failing with exception on "kotlinc -script foo.kt"
- [`KT-18754`](https://youtrack.jetbrains.com/issue/KT-18754) Rename CLI argument "-module" to "-Xbuild-file"
- [`KT-18927`](https://youtrack.jetbrains.com/issue/KT-18927) run kotlin app crashes eclipse

### Tools. Gradle

- [`KT-10537`](https://youtrack.jetbrains.com/issue/KT-10537) Gradle plugin doesn't pick up changed project.buildDir
- [`KT-17031`](https://youtrack.jetbrains.com/issue/KT-17031) JVM crash on in-process compilation in Gradle with debug
- [`KT-17035`](https://youtrack.jetbrains.com/issue/KT-17035) Gradle Kotlin Plugin can not compile tests calling source internal fields/variables if compileJava dumps classes to a different directory and then copied classes are moved to sourceSets.main.output.classesDir by a different task
- [`KT-17197`](https://youtrack.jetbrains.com/issue/KT-17197) Gradle Kotlin plugin does not wire task dependencies correctly, causing compilation failures
- [`KT-17618`](https://youtrack.jetbrains.com/issue/KT-17618) Pass freeCompilerArgs to compiler unchanged
- [`KT-18262`](https://youtrack.jetbrains.com/issue/KT-18262) kotlin-spring should also open @SpringBootTest classes
- [`KT-18647`](https://youtrack.jetbrains.com/issue/KT-18647) Kotlin incremental compile cannot be disabled.
- [`KT-18832`](https://youtrack.jetbrains.com/issue/KT-18832) Java version parsing error with Gradle Kotlin plugin + JDK 9

### Tools. J2K

- [`KT-10762`](https://youtrack.jetbrains.com/issue/KT-10762) J2K removes empty lines from Doc-comments
- [`KT-13146`](https://youtrack.jetbrains.com/issue/KT-13146) J2K goes into infinite loop with anonymous inner class that references itself
- [`KT-15761`](https://youtrack.jetbrains.com/issue/KT-15761) Converting Java to Kotlin corrupts string which includes escaped backslash
- [`KT-16133`](https://youtrack.jetbrains.com/issue/KT-16133) Converting switch statement inserts dead code (possibly as a false positive for fall-through)
- [`KT-16142`](https://youtrack.jetbrains.com/issue/KT-16142) Kotlin Konverter produces empty line in Kdoc
- [`KT-18038`](https://youtrack.jetbrains.com/issue/KT-18038) Java to Kotlin converter messes up empty lines while converting from JavaDoc to KDoc
- [`KT-18051`](https://youtrack.jetbrains.com/issue/KT-18051) Doesn't work the auto-convert Java to Kotlin in Android Studio 3.0
- [`KT-18141`](https://youtrack.jetbrains.com/issue/KT-18141) J2K changes semantic when while does not have a body
- [`KT-18142`](https://youtrack.jetbrains.com/issue/KT-18142) J2K changes semantics when `if` does not have a body
- [`KT-18512`](https://youtrack.jetbrains.com/issue/KT-18512) J2K Incorrect null parameter conversion

### Tools. JPS

- [`KT-14848`](https://youtrack.jetbrains.com/issue/KT-14848) JPS: invalid compiler argument causes exception (see also EA-92062)
- [`KT-16057`](https://youtrack.jetbrains.com/issue/KT-16057) Provide better error message when the same compiler argument is set twice
- [`KT-19155`](https://youtrack.jetbrains.com/issue/KT-19155) IllegalArgumentException: Unsupported kind: PACKAGE_LOCAL_VARIABLE_LIST in incremental compilation

### Tools. Maven

- [`KT-18022`](https://youtrack.jetbrains.com/issue/KT-18022) kotlin maven plugin - adding dependencies overwrites arguments.pluginClassPath preventing kapt goal from running
- [`KT-18224`](https://youtrack.jetbrains.com/issue/KT-18224) Maven compilation with JDK 9 fails with InaccessibleObjectException

### Tools. REPL

- [`KT-5620`](https://youtrack.jetbrains.com/issue/KT-5620) REPL: Support destructuring declarations
- [`KT-12564`](https://youtrack.jetbrains.com/issue/KT-12564) Kotlin REPL Doesn't Perform Many Checks
- [`KT-15172`](https://youtrack.jetbrains.com/issue/KT-15172) REPL: function declarations that contain empty lines throw error
- [`KT-18181`](https://youtrack.jetbrains.com/issue/KT-18181) REPL: support non-headless execution for Swing code
- [`KT-18349`](https://youtrack.jetbrains.com/issue/KT-18349) REPL: do not show warnings when there are errors

### Tools. kapt

- [`KT-18682`](https://youtrack.jetbrains.com/issue/KT-18682) Kapt: Anonymous class types are not rendered properly in stubs
- [`KT-18758`](https://youtrack.jetbrains.com/issue/KT-18758) Kotlin 1.1.3  / Kapt fails with gradle
- [`KT-18799`](https://youtrack.jetbrains.com/issue/KT-18799) Kapt3, IC: Kapt does not generate annotation value for constant values in documented types
- [`KT-19178`](https://youtrack.jetbrains.com/issue/KT-19178) Kapt: Build dependencies from 'kapt' configuration should go into the 'kaptCompile' task dependencies
- [`KT-19179`](https://youtrack.jetbrains.com/issue/KT-19179) Kapt: Gradle silently skips 'kotlinKapt' task sometimes
- [`KT-19211`](https://youtrack.jetbrains.com/issue/KT-19211) Kapt3: Generated classes output is not synchronized with Java classes output in pure Java projects (Gradle 4+)

## 1.1.3-2

#### Fixes

-   Noarg compiler plugin reverted to 1.1.2 behavior: by default, it will not run any initialization code
    from the generated default constructor. If you want to run initializers, you need to enable
    the corresponding option as described in the documentation.
    Note that if a @noarg class has initializers that depend on constructor parameters, you will get incorrect
    compiler behavior, so you shouldn't enable this option if you have such classes in your project.
    This resolves [`KT-18667`](https://youtrack.jetbrains.com/issue/KT-18667) and [`KT-18668`](https://youtrack.jetbrains.com/issue/KT-18668).
- [`KT-18689`](https://youtrack.jetbrains.com/issue/KT-18689) Incorrect bytecode generated when passing a bound member reference to an inline function with default argument values
- [`KT-18377`](https://youtrack.jetbrains.com/issue/KT-18377) Syntax error while generating kapt stubs
- [`KT-18411`](https://youtrack.jetbrains.com/issue/KT-18411) Slow debugger step-in into inlined function
- [`KT-18687`](https://youtrack.jetbrains.com/issue/KT-18687) Deadlock in resolve with Kotlin 1.1.3
- [`KT-18726`](https://youtrack.jetbrains.com/issue/KT-18726) Frequent UI hangs in 2017.2 EAPs

## 1.1.3

### Android

#### New Features

- [`KT-12049`](https://youtrack.jetbrains.com/issue/KT-12049) Kotlin Lint: "Missing Parcelable CREATOR field" could suggest "Add implementation" quick fix
- [`KT-16712`](https://youtrack.jetbrains.com/issue/KT-16712) Show warning in IDEA when using Java 1.8 api in Android
- [`KT-16843`](https://youtrack.jetbrains.com/issue/KT-16843) Android: provide gutter icons for resources like colors and drawables
- [`KT-17389`](https://youtrack.jetbrains.com/issue/KT-17389) Implement Intention "Add Activity / BroadcastReceiver / Service to manifest" 
- [`KT-17465`](https://youtrack.jetbrains.com/issue/KT-17465) Add intentions Add/Remove/Redo parcelable implementation
#### Fixes

- [`KT-14970`](https://youtrack.jetbrains.com/issue/KT-14970) ClassCastException: butterknife.lint.LintRegistry cannot be cast to com.android.tools.klint.client.api.IssueRegistry
- [`KT-17287`](https://youtrack.jetbrains.com/issue/KT-17287) Configure kotlin in Android Studio: don't show menu Choose Configurator with single choice
- [`KT-17288`](https://youtrack.jetbrains.com/issue/KT-17288) Android Studio: please remove menu item Configure Kotlin (JavaScript) in Project
- [`KT-17289`](https://youtrack.jetbrains.com/issue/KT-17289) Android Studio: Hide "Configure Kotlin" balloon if Kotlin is configured from a kt file banner
- [`KT-17291`](https://youtrack.jetbrains.com/issue/KT-17291) Android Studio 2.4: Cannot get property 'metaClass' on null object error after Kotlin configuring
- [`KT-17610`](https://youtrack.jetbrains.com/issue/KT-17610) "Unknown reference: kotlinx"

### Compiler

#### New Features

- [`KT-11167`](https://youtrack.jetbrains.com/issue/KT-11167) Support compilation against JRE 9
- [`KT-17497`](https://youtrack.jetbrains.com/issue/KT-17497) Warn about redundant else branch in exhaustive when
#### Performance Improvements

- [`KT-7931`](https://youtrack.jetbrains.com/issue/KT-7931) Optimize iteration over strings/charsequences on JVM
- [`KT-10848`](https://youtrack.jetbrains.com/issue/KT-10848) Optimize substitution of inline function with default parameters
- [`KT-12497`](https://youtrack.jetbrains.com/issue/KT-12497) Optimize inlined bytecode for functions with default parameters
- [`KT-17342`](https://youtrack.jetbrains.com/issue/KT-17342) Optimize control-flow for case of many variables
- [`KT-17562`](https://youtrack.jetbrains.com/issue/KT-17562) Optimize KtFile::isScript
#### Fixes

- [`KT-4960`](https://youtrack.jetbrains.com/issue/KT-4960) Redeclaration is not reported for type parameters of interfaces
- [`KT-5160`](https://youtrack.jetbrains.com/issue/KT-5160) No warning when a lambda parameter hides a variable
- [`KT-5246`](https://youtrack.jetbrains.com/issue/KT-5246) is check fails on cyclic type parameter bounds
- [`KT-5354`](https://youtrack.jetbrains.com/issue/KT-5354) Wrong label resolution when label name clash with fun name
- [`KT-7645`](https://youtrack.jetbrains.com/issue/KT-7645) Prohibit default value for `catch`-block parameter
- [`KT-7724`](https://youtrack.jetbrains.com/issue/KT-7724) Can never import private member 
- [`KT-7796`](https://youtrack.jetbrains.com/issue/KT-7796) Wrong scope for default parameter value resolution
- [`KT-7984`](https://youtrack.jetbrains.com/issue/KT-7984) Unexpected "Unresolved reference" in a default value expression in a local function
- [`KT-7985`](https://youtrack.jetbrains.com/issue/KT-7985) Unexpected "Unresolved reference to a type parameter" in a default value expression in a local function
- [`KT-8320`](https://youtrack.jetbrains.com/issue/KT-8320) It should not be possible to catch a type parameter type
- [`KT-8877`](https://youtrack.jetbrains.com/issue/KT-8877) Automatic labeling doesn't work for infix calls
- [`KT-9251`](https://youtrack.jetbrains.com/issue/KT-9251) Qualified this does not work with labeled function literals
- [`KT-9551`](https://youtrack.jetbrains.com/issue/KT-9551) False warning "No cast needed"
- [`KT-9645`](https://youtrack.jetbrains.com/issue/KT-9645) Incorrect inspection: No cast Needed
- [`KT-9986`](https://youtrack.jetbrains.com/issue/KT-9986) 'null as T' should be unchecked cast
- [`KT-10397`](https://youtrack.jetbrains.com/issue/KT-10397) java.lang.reflect.GenericSignatureFormatError when generic inner class is mentioned in function signature
- [`KT-11474`](https://youtrack.jetbrains.com/issue/KT-11474) ISE: Requested A, got foo.A in JavaClassFinderImpl on Java file with package not matching directory
- [`KT-11622`](https://youtrack.jetbrains.com/issue/KT-11622) False "No cast needed" when ambiguous call because of smart cast
- [`KT-12245`](https://youtrack.jetbrains.com/issue/KT-12245) Code with annotation that has an unresolved identifier as a parameter compiles successfully
- [`KT-12269`](https://youtrack.jetbrains.com/issue/KT-12269) False "Non-null type is checked for instance of nullable type"
- [`KT-12683`](https://youtrack.jetbrains.com/issue/KT-12683) A problem with `is` operator and non-reified type-parameters
- [`KT-12690`](https://youtrack.jetbrains.com/issue/KT-12690) USELESS_CAST compiler warning may break code when fix is applied
- [`KT-13348`](https://youtrack.jetbrains.com/issue/KT-13348) Report useless cast on safe cast from nullable type to the same not null type
- [`KT-13597`](https://youtrack.jetbrains.com/issue/KT-13597) No check for accessing final field in local object in constructor
- [`KT-13997`](https://youtrack.jetbrains.com/issue/KT-13997) Incorrect "Property must be initialized or be abstract" error for property with external accessors
- [`KT-14381`](https://youtrack.jetbrains.com/issue/KT-14381) Possible val reassignment not detected inside init block
- [`KT-14564`](https://youtrack.jetbrains.com/issue/KT-14564) java.lang.VerifyError: Bad local variable type
- [`KT-14801`](https://youtrack.jetbrains.com/issue/KT-14801) Invoke error message if nested class has the same name as a function from base class
- [`KT-14977`](https://youtrack.jetbrains.com/issue/KT-14977) IDE doesn't warn about checking null value of variable that cannot be null
- [`KT-15085`](https://youtrack.jetbrains.com/issue/KT-15085) Label and function naming conflict is resolved in unintuitive way
- [`KT-15161`](https://youtrack.jetbrains.com/issue/KT-15161) False warning "no cast needed" for array creation
- [`KT-15480`](https://youtrack.jetbrains.com/issue/KT-15480) Cannot destruct a list when "if" has an "else" branch
- [`KT-15495`](https://youtrack.jetbrains.com/issue/KT-15495) Internal typealiases in the same module are inaccessible on incremental compilation
- [`KT-15566`](https://youtrack.jetbrains.com/issue/KT-15566) Object member imported in file scope used in delegation expression in object declaration should be a compiler error
- [`KT-16016`](https://youtrack.jetbrains.com/issue/KT-16016) Compiler failure with NO_EXPECTED_TYPE
- [`KT-16426`](https://youtrack.jetbrains.com/issue/KT-16426) Return statement resolved to function instead of property getter
- [`KT-16813`](https://youtrack.jetbrains.com/issue/KT-16813) Anonymous objects returned from private-in-file members should behave as for private class members
- [`KT-16864`](https://youtrack.jetbrains.com/issue/KT-16864) Local delegate + ad-hoc object leads to CCE
- [`KT-17144`](https://youtrack.jetbrains.com/issue/KT-17144) Breakpoint inside `when`
- [`KT-17149`](https://youtrack.jetbrains.com/issue/KT-17149) Incorrect warning "Kotlin: This operation has led to an overflow"
- [`KT-17156`](https://youtrack.jetbrains.com/issue/KT-17156) No re-parse after lambda was converted to block
- [`KT-17318`](https://youtrack.jetbrains.com/issue/KT-17318) Typo in DSL Marker message `cant`
- [`KT-17384`](https://youtrack.jetbrains.com/issue/KT-17384) break/continue expression in inlined function parameter argument causes compilation exception
- [`KT-17457`](https://youtrack.jetbrains.com/issue/KT-17457) Suspend + LongRange couldn't transform method node issue in Kotlin 1.1.1
- [`KT-17479`](https://youtrack.jetbrains.com/issue/KT-17479) val reassign is allowed via explicit this receiver
- [`KT-17560`](https://youtrack.jetbrains.com/issue/KT-17560) Overload resolution ambiguity on semi-valid class-files generated by Scala
- [`KT-17572`](https://youtrack.jetbrains.com/issue/KT-17572) try-catch expression in inlined function parameter argument causes compilation exception
- [`KT-17573`](https://youtrack.jetbrains.com/issue/KT-17573) try-finally expression in inlined function parameter argument fails with VerifyError
- [`KT-17588`](https://youtrack.jetbrains.com/issue/KT-17588) Compiler error while optimizer tries to get rid of captured variable
- [`KT-17590`](https://youtrack.jetbrains.com/issue/KT-17590) conditional return in inline function parameter argument causes compilation exception
- [`KT-17591`](https://youtrack.jetbrains.com/issue/KT-17591) non-conditional return in inline function parameter argument causes compilation exception
- [`KT-17613`](https://youtrack.jetbrains.com/issue/KT-17613) 'this' expression referring to deprecated class instance is highlighted as deprecated in IDE
- [`KT-18358`](https://youtrack.jetbrains.com/issue/KT-18358) Keep smart pointers instead of PSI elements in JavaElementImpl and its descendants

### IDE

#### New Features

- [`KT-7810`](https://youtrack.jetbrains.com/issue/KT-7810) Separate icon for abstract class
- [`KT-8617`](https://youtrack.jetbrains.com/issue/KT-8617) Recognize TODO method usages and highlight them same as TODO-comment
- [`KT-12629`](https://youtrack.jetbrains.com/issue/KT-12629) Add rainbow/semantic-highlighting for local variables
- [`KT-14109`](https://youtrack.jetbrains.com/issue/KT-14109) support parameter hints in idea plugin
- [`KT-16645`](https://youtrack.jetbrains.com/issue/KT-16645) Support inlay type hints for implicitly typed vals, properties, and functions
- [`KT-17807`](https://youtrack.jetbrains.com/issue/KT-17807) Add Smart Enter processor for object expessions
#### Performance Improvements

- [`KT-16995`](https://youtrack.jetbrains.com/issue/KT-16995) Typing during in-place refactorings is impossibly laggy
- [`KT-17331`](https://youtrack.jetbrains.com/issue/KT-17331) Frequent long editor freezes
- [`KT-17383`](https://youtrack.jetbrains.com/issue/KT-17383) Slow editing in Kotlin files If breadcrumbs are enabled in module with many dependencies
- [`KT-17495`](https://youtrack.jetbrains.com/issue/KT-17495) Much time spent in LibraryDependenciesCache.getLibrariesAndSdksUsedWith
#### Fixes

- [`KT-7848`](https://youtrack.jetbrains.com/issue/KT-7848) When you paste text into a string literal special symbols should be escaped
- [`KT-7954`](https://youtrack.jetbrains.com/issue/KT-7954) 'Go to symbol' doesn't show containing declaration for local symbols
- [`KT-9091`](https://youtrack.jetbrains.com/issue/KT-9091) Sometimes backticks of the method name with spaces are highlighted with rose background
- [`KT-10577`](https://youtrack.jetbrains.com/issue/KT-10577) Refactor / Move Kotlin + Java files adds wrong import in very specific case
- [`KT-12856`](https://youtrack.jetbrains.com/issue/KT-12856) Import fold region is not updated to include imports added while editing file
- [`KT-14161`](https://youtrack.jetbrains.com/issue/KT-14161) Navigate to symbol doesn't see local named functions
- [`KT-14601`](https://youtrack.jetbrains.com/issue/KT-14601) Formatter inserts unnecessary indent before 'else'
- [`KT-14639`](https://youtrack.jetbrains.com/issue/KT-14639) Incorrect name of code style setting: Align in columns 'case' branches
- [`KT-15029`](https://youtrack.jetbrains.com/issue/KT-15029) "Go to symbol" action doesn't find properties declared in primary constructors
- [`KT-15255`](https://youtrack.jetbrains.com/issue/KT-15255) Move cursor to a better place when creating a new Kotlin file
- [`KT-15273`](https://youtrack.jetbrains.com/issue/KT-15273) Kotlin IDE plugin adds `import java.lang.String` with "Optimize Imports", making project broken
- [`KT-16159`](https://youtrack.jetbrains.com/issue/KT-16159) Wrong "Constructor call" highlighting if operator is called on newly created object
- [`KT-16392`](https://youtrack.jetbrains.com/issue/KT-16392) Gradle/Maven java module: Add framework support/ Kotlin (Java or JavaScript) adds nothing
- [`KT-16423`](https://youtrack.jetbrains.com/issue/KT-16423) Show expression type doesn't work when selecting from the middle of expression with "Expand Selection"
- [`KT-16635`](https://youtrack.jetbrains.com/issue/KT-16635) Do not show kotlin-specific live templates macros for all context types
- [`KT-16755`](https://youtrack.jetbrains.com/issue/KT-16755) No "Is sublassed by" icon for sealed class
- [`KT-16775`](https://youtrack.jetbrains.com/issue/KT-16775) Rewrite at slice CLASS key: OBJECT_DECLARATION while writing code in IDE
- [`KT-16803`](https://youtrack.jetbrains.com/issue/KT-16803) Suspending iteration is not marked in the gutter by IDEA as suspending invocation
- [`KT-17037`](https://youtrack.jetbrains.com/issue/KT-17037) Editor suggests to import `EmptyCoroutineContext.plus` for any unresolved `+`
- [`KT-17046`](https://youtrack.jetbrains.com/issue/KT-17046) Kotlin facet, Compiler plugins: last line is shown empty when not selected
- [`KT-17088`](https://youtrack.jetbrains.com/issue/KT-17088) Settings: Kotlin Compiler: "Destination directory" should be enabled if "Copy library runtime files" is on on the dialog opening 
- [`KT-17094`](https://youtrack.jetbrains.com/issue/KT-17094) Kotlin facet, additional command line parameters dialog: please provide a title
- [`KT-17138`](https://youtrack.jetbrains.com/issue/KT-17138) Configure Kotlin in Project: Choose Configurator popup: names could be unified
- [`KT-17145`](https://youtrack.jetbrains.com/issue/KT-17145) Kotlin facet: IllegalArgumentException on attempt to show settings common for several javascript kotlin facets with different moduleKind
- [`KT-17223`](https://youtrack.jetbrains.com/issue/KT-17223) Absolute path to Kotlin compiler plugin in IML
- [`KT-17293`](https://youtrack.jetbrains.com/issue/KT-17293) Project Structure dialog is opened too slow for a project with a lot of empty gradle modules
- [`KT-17304`](https://youtrack.jetbrains.com/issue/KT-17304) IDEA shows wrong type for expressions
- [`KT-17439`](https://youtrack.jetbrains.com/issue/KT-17439) Kotlin: 'autoscroll from source' doesn't work in Structure view
- [`KT-17448`](https://youtrack.jetbrains.com/issue/KT-17448) Regression: Sample Resolve 
- [`KT-17482`](https://youtrack.jetbrains.com/issue/KT-17482) Set jvmTarget to 1.8 by default when configuring a project with JDK 1.8
- [`KT-17492`](https://youtrack.jetbrains.com/issue/KT-17492) -jvm-target is ignored by IntelliJ
- [`KT-17505`](https://youtrack.jetbrains.com/issue/KT-17505) LazyLightClassMemberMatchingError from collection implementation
- [`KT-17517`](https://youtrack.jetbrains.com/issue/KT-17517) Compiler options specified as properties are not handled by Maven importer
- [`KT-17521`](https://youtrack.jetbrains.com/issue/KT-17521) Quickfix to enable coroutines should work for Maven projects
- [`KT-17525`](https://youtrack.jetbrains.com/issue/KT-17525) IDE: KNPE at KotlinAddImportActionKt.createSingleImportActionForConstructor() on invalid reference to inner class constructor
- [`KT-17578`](https://youtrack.jetbrains.com/issue/KT-17578) Throwable: "Reported element PsiIdentifier:AnnotationConfiguration is not from the file 'PsiFile:InSource.kt' the inspection 'ImplicitSubclassInspection'"
- [`KT-17638`](https://youtrack.jetbrains.com/issue/KT-17638) ISE in KotlinElementDescriptionProvider.renderShort
- [`KT-17698`](https://youtrack.jetbrains.com/issue/KT-17698) Unknown library format - prevents IDEA from configuring Kotlin JS
- [`KT-17714`](https://youtrack.jetbrains.com/issue/KT-17714) UAST inspection on non-physical element
- [`KT-17722`](https://youtrack.jetbrains.com/issue/KT-17722) IntelliJ plugin uses wrong JVM target when Kotlin Facet is not configured
- [`KT-17770`](https://youtrack.jetbrains.com/issue/KT-17770) Kotlin IntelliJ plugin fails to re-index Gradle script classpath after change to the `plugins` block
- [`KT-17777`](https://youtrack.jetbrains.com/issue/KT-17777) Logger$EmptyThrowable: "Facet Kotlin (app) [kotlin-language] not found" at FacetModelImpl.removeFacet()
- [`KT-17810`](https://youtrack.jetbrains.com/issue/KT-17810) Exception from unused import inspection leads to code analysis hangs
- [`KT-17821`](https://youtrack.jetbrains.com/issue/KT-17821) In Kotlin's plugin KotlinJsMetadataVersionIndex loads file with VfsUtilCore.loadText
- [`KT-17840`](https://youtrack.jetbrains.com/issue/KT-17840) Show expression type on `this` shows bogus disambiguation
- [`KT-17845`](https://youtrack.jetbrains.com/issue/KT-17845) Searching for usages of override property in primary constructor doesn't suggest base property search
- [`KT-17847`](https://youtrack.jetbrains.com/issue/KT-17847) Kotlin facet: strange warning if API version = 1.2
- [`KT-17857`](https://youtrack.jetbrains.com/issue/KT-17857) Java should see classes affected by "allopen" plugin as open
- [`KT-17861`](https://youtrack.jetbrains.com/issue/KT-17861) Setting 'kotlin.experimental.coroutines "enable"' doesn't work for Android projects
- [`KT-17875`](https://youtrack.jetbrains.com/issue/KT-17875) New Project/Module with Kotlin: on attempt to use libraries from plugin IDE suggests to rewrite them
- [`KT-17876`](https://youtrack.jetbrains.com/issue/KT-17876) New Project/Module with Kotlin: with "Copy to" option only part of jars are copied
- [`KT-17899`](https://youtrack.jetbrains.com/issue/KT-17899) Navigate to symbol: vararg signatures are indistinguishable from non-vararg ones
- [`KT-18070`](https://youtrack.jetbrains.com/issue/KT-18070) KtLightModifierList.hasExplicitModifier("default") is true for interface method with body

### IDE. Completion

#### New Features

- [`KT-11250`](https://youtrack.jetbrains.com/issue/KT-11250) Auto-completion for convention function names in 'operator fun' definitions
- [`KT-12293`](https://youtrack.jetbrains.com/issue/KT-12293) Autocompletion should propose `lateinit var` in addition to `lateinit`
- [`KT-13673`](https://youtrack.jetbrains.com/issue/KT-13673) Add 'companion { ... }'  code completion opsion
#### Performance Improvements

- [`KT-10978`](https://youtrack.jetbrains.com/issue/KT-10978) Kotlin + JOOQ + Intellij performance is unusable 
- [`KT-16715`](https://youtrack.jetbrains.com/issue/KT-16715) Typing is very slow since 1.1
- [`KT-16850`](https://youtrack.jetbrains.com/issue/KT-16850) UI freeze for several seconds during inserting selected completion variant
#### Fixes

- [`KT-13524`](https://youtrack.jetbrains.com/issue/KT-13524) Completing the keyword 'constructor' before a primary constructor wrongly inserts parentheses
- [`KT-14665`](https://youtrack.jetbrains.com/issue/KT-14665) No completion for "else" keyword
- [`KT-15603`](https://youtrack.jetbrains.com/issue/KT-15603) Annoying completion when making a primary constructor private
- [`KT-16161`](https://youtrack.jetbrains.com/issue/KT-16161) Completion of 'onEach' inserts unneeded angular brackets
- [`KT-16856`](https://youtrack.jetbrains.com/issue/KT-16856) Code completion optimization

### IDE. Debugger

- [`KT-15823`](https://youtrack.jetbrains.com/issue/KT-15823) Breakpoints not work inside crossinline from init of object passed into collection
- [`KT-15854`](https://youtrack.jetbrains.com/issue/KT-15854) Debugger not able to evaluate internal member functions
- [`KT-16025`](https://youtrack.jetbrains.com/issue/KT-16025) Step into suspend functions stops at the function end
- [`KT-17295`](https://youtrack.jetbrains.com/issue/KT-17295) Can't stop in kotlin.concurrent.timer lambda parameter

### IDE. Inspections and Intentions

#### New Features

- [`KT-10981`](https://youtrack.jetbrains.com/issue/KT-10981) Quickfix for INAPPLICABLE_JVM_FIELD to replace with 'const' when possible
- [`KT-14046`](https://youtrack.jetbrains.com/issue/KT-14046) Add intention to add inline keyword if a function has parameter with noinline and/or crossinline modifier
- [`KT-14137`](https://youtrack.jetbrains.com/issue/KT-14137) Add intention to convert top level val with object expression to object
- [`KT-15903`](https://youtrack.jetbrains.com/issue/KT-15903) QuickFix to add/remove suspend in hierarchies
- [`KT-16786`](https://youtrack.jetbrains.com/issue/KT-16786) Intention to add "open" modifier to a non-private method or property in an open class
- [`KT-16851`](https://youtrack.jetbrains.com/issue/KT-16851) Quickfix adding qualifier `@call` to unallowed 'return' in closures
- [`KT-17053`](https://youtrack.jetbrains.com/issue/KT-17053) Inspection to detect use of callable reference as a lambda body
- [`KT-17054`](https://youtrack.jetbrains.com/issue/KT-17054) Intention/ inspection to convert 'if' with 'is' check to 'as?' with safe call 
- [`KT-17191`](https://youtrack.jetbrains.com/issue/KT-17191) Intention to name anonymous (_) parameter
- [`KT-17221`](https://youtrack.jetbrains.com/issue/KT-17221) Inspection for recursive calls in property accessors
- [`KT-17520`](https://youtrack.jetbrains.com/issue/KT-17520) Quickfix to update language/API version should work for Maven projects
- [`KT-17650`](https://youtrack.jetbrains.com/issue/KT-17650) Add quickfix inserting 'lateinit' modifier for not-initialized property
- [`KT-17660`](https://youtrack.jetbrains.com/issue/KT-17660) Inspection: data class copy without named argument(s)
#### Fixes

- [`KT-10211`](https://youtrack.jetbrains.com/issue/KT-10211) "Replace infix call with ordinary call" appears both as a quickfix and as an intention in the pop-up
- [`KT-11003`](https://youtrack.jetbrains.com/issue/KT-11003) Invalid quickfix in companion object for open properties
- [`KT-12805`](https://youtrack.jetbrains.com/issue/KT-12805) False positive redundant semicolon after while without block expression
- [`KT-14335`](https://youtrack.jetbrains.com/issue/KT-14335) Unexpected range of "convert lambda to reference" intention
- [`KT-14435`](https://youtrack.jetbrains.com/issue/KT-14435) "Use destructuring declaration" should be available as intention even without usages
- [`KT-14443`](https://youtrack.jetbrains.com/issue/KT-14443) IDEA intention suggest to make a method in an interface final
- [`KT-14820`](https://youtrack.jetbrains.com/issue/KT-14820) Convert function to property shouldn't insert explicit type if it was inferred previously
- [`KT-15076`](https://youtrack.jetbrains.com/issue/KT-15076) Replace if with elvis inspection should not be reported in some complex cases
- [`KT-15543`](https://youtrack.jetbrains.com/issue/KT-15543) "Convert receiver to parameter" refactoring breaks code
- [`KT-15942`](https://youtrack.jetbrains.com/issue/KT-15942) "Convert to secondary constructor" intention is available for data class
- [`KT-16136`](https://youtrack.jetbrains.com/issue/KT-16136) Wrong type parameter variance suggested if type parameter is used in nested anonymous object
- [`KT-16339`](https://youtrack.jetbrains.com/issue/KT-16339) Incorrect warning: 'protected' visibility is effectively 'private' in a final class
- [`KT-16577`](https://youtrack.jetbrains.com/issue/KT-16577) "Redundant semicolon" is not reported for semicolon after package statement in file with no imports
- [`KT-17079`](https://youtrack.jetbrains.com/issue/KT-17079) Kotlin: Bad conversion of double comparison to range check if bounds have mixed types
- [`KT-17372`](https://youtrack.jetbrains.com/issue/KT-17372) Specify explicit lambda signature handles anonymous parameters incorrectly
- [`KT-17404`](https://youtrack.jetbrains.com/issue/KT-17404) Editor: attempt to pass type parameter as reified argument causes AE "Classifier descriptor of a type should be of type ClassDescriptor" at DescriptorUtils.getClassDescriptorForTypeConstructor()
- [`KT-17408`](https://youtrack.jetbrains.com/issue/KT-17408) "Convert to secondary constructor" intention is available for annotation parameters
- [`KT-17503`](https://youtrack.jetbrains.com/issue/KT-17503) Intention "To raw string literal" should handle string concatenations
- [`KT-17599`](https://youtrack.jetbrains.com/issue/KT-17599) "Make primary constructor internal" intention is available for annotation class 
- [`KT-17600`](https://youtrack.jetbrains.com/issue/KT-17600) "Make primary constructor private" intention is available for annotation class
- [`KT-17707`](https://youtrack.jetbrains.com/issue/KT-17707) "Final declaration can't be overridden at runtime" inspection reports Kotlin classes non final due to compiler plugin
- [`KT-17708`](https://youtrack.jetbrains.com/issue/KT-17708) "Move to class body" intention is available for annotation parameters
- [`KT-17762`](https://youtrack.jetbrains.com/issue/KT-17762) 'Convert to range' intention generates inequivalent code for doubles

### IDE. Refactorings

#### Performance Improvements

- [`KT-17234`](https://youtrack.jetbrains.com/issue/KT-17234) Refactor / Inline on library property is rejected after GUI freeze for a while
- [`KT-17333`](https://youtrack.jetbrains.com/issue/KT-17333) KotlinChangeInfo retains 132MB of the heap
#### Fixes

- [`KT-8370`](https://youtrack.jetbrains.com/issue/KT-8370) "Can't move to original file" should not be an error
- [`KT-8930`](https://youtrack.jetbrains.com/issue/KT-8930) Refactor / Move preivew: moved element is shown as reference, and its file as subject
- [`KT-9158`](https://youtrack.jetbrains.com/issue/KT-9158) Refactor / Move preview mentions the package statement of moved class as a usage
- [`KT-13192`](https://youtrack.jetbrains.com/issue/KT-13192) Refactor / Move: to another class: "To" field code completion suggests facade and Java classes
- [`KT-13466`](https://youtrack.jetbrains.com/issue/KT-13466) Refactor / Move: class to upper level: the package statement is not updated
- [`KT-15519`](https://youtrack.jetbrains.com/issue/KT-15519) KDoc comments for data class values get removed by Change Signature
- [`KT-17211`](https://youtrack.jetbrains.com/issue/KT-17211) Refactor / Move several files: superfluous FQN is inserted into reference to same file's element
- [`KT-17213`](https://youtrack.jetbrains.com/issue/KT-17213) Refactor / Inline Function: parameters of lambda as call argument turn incompilable
- [`KT-17272`](https://youtrack.jetbrains.com/issue/KT-17272) Refactor / Inline Function: unused String literal in parameters is kept (while unsed Int is not)
- [`KT-17273`](https://youtrack.jetbrains.com/issue/KT-17273) Refactor / Inline Function: PIEAE: "Element: class org.jetbrains.kotlin.psi.KtCallExpression because: different providers" at PsiUtilCore.ensureValid()
- [`KT-17296`](https://youtrack.jetbrains.com/issue/KT-17296) Refactor / Inline Function: UOE at ExpressionReplacementPerformer.findOrCreateBlockToInsertStatement() for call of multi-statement function in declaration
- [`KT-17330`](https://youtrack.jetbrains.com/issue/KT-17330) Inline kotlin function causes an infinite loop
- [`KT-17395`](https://youtrack.jetbrains.com/issue/KT-17395) Refactor / Inline Function: arguments passed to lambda turns code to incompilable
- [`KT-17496`](https://youtrack.jetbrains.com/issue/KT-17496) Refactor / Move: calls to moved extension function type properties are updated (incorrectly)
- [`KT-17515`](https://youtrack.jetbrains.com/issue/KT-17515) Refactor / Move inner class to another class, Move companion object: disabled in editor, but available in Move dialog
- [`KT-17526`](https://youtrack.jetbrains.com/issue/KT-17526) Refactor / Move: reference to companion member gets superfluous companion name in certain cases
- [`KT-17538`](https://youtrack.jetbrains.com/issue/KT-17538) Refactor / Move: moving file with import alias removes alias usage from code
- [`KT-17545`](https://youtrack.jetbrains.com/issue/KT-17545) Refactor / Move: false Problems Detected on moving class using parent's protected class, object
- [`KT-18018`](https://youtrack.jetbrains.com/issue/KT-18018) F5 (for Copy) does not work for Kotlin files anymore
- [`KT-18205`](https://youtrack.jetbrains.com/issue/KT-18205) Moving multiple classes causes imports to be converted to fully qualified class names

### Infrastructure

- [`KT-14988`](https://youtrack.jetbrains.com/issue/KT-14988) Support running the Kotlin compiler on Java 9
- [`KT-17112`](https://youtrack.jetbrains.com/issue/KT-17112) IncompatibleClassChangeError on invoking Kotlin compiler daemon on JDK 9

### JavaScript

#### Fixes

- [`KT-12926`](https://youtrack.jetbrains.com/issue/KT-12926) JS: use # instead of @ when linking to sourcemap from generated code
- [`KT-13577`](https://youtrack.jetbrains.com/issue/KT-13577) Double.hashCode is zero for big numbers
- [`KT-15135`](https://youtrack.jetbrains.com/issue/KT-15135) JS: support friend modules
- [`KT-15484`](https://youtrack.jetbrains.com/issue/KT-15484) JS: (node): println with object /number argument leads to "TypeError: Invalid data, chunk must be a string or buffer, not object/number"
- [`KT-16658`](https://youtrack.jetbrains.com/issue/KT-16658) JS: Suspend function with default param value in interface
- [`KT-16717`](https://youtrack.jetbrains.com/issue/KT-16717) KotlinJs - copy() on data class doesn't work with when there is a secondary constructor
- [`KT-16745`](https://youtrack.jetbrains.com/issue/KT-16745) JS: initialize enum fields before calling companion objects's initializer
- [`KT-16951`](https://youtrack.jetbrains.com/issue/KT-16951) JS: coroutine suspension point is not inserted when inlining suspend function with tail call to another suspend function
- [`KT-16979`](https://youtrack.jetbrains.com/issue/KT-16979) Kotlin.js : Intellij test and productions sources produce a AMD module with the same name
- [`KT-17067`](https://youtrack.jetbrains.com/issue/KT-17067) JS: suspendCoroutine not working as expected
- [`KT-17219`](https://youtrack.jetbrains.com/issue/KT-17219) Hexadecimal literals in js(...) argument are replaced by wrong decimal constants
- [`KT-17281`](https://youtrack.jetbrains.com/issue/KT-17281) JS: wrong code generated for a recursive call in suspend function
- [`KT-17446`](https://youtrack.jetbrains.com/issue/KT-17446) JS: incorrect code generated for call to `suspendCoroutineOrReturn` when the same function calls another suspend function
- [`KT-17540`](https://youtrack.jetbrains.com/issue/KT-17540) Incorrect inlining optimization of `also`/`apply` function
- [`KT-17700`](https://youtrack.jetbrains.com/issue/KT-17700) Wrong code generated for 'str += (nullableChar ?: break)'
- [`KT-17966`](https://youtrack.jetbrains.com/issue/KT-17966) JS: Char literal inside of string template

### Libraries

- [`KT-17453`](https://youtrack.jetbrains.com/issue/KT-17453) Array iterators throw IndexOutOfBoundsException instead of NoSuchElementException
- [`KT-17635`](https://youtrack.jetbrains.com/issue/KT-17635) Document String#toIntOfNull may throw an exception
- [`KT-17686`](https://youtrack.jetbrains.com/issue/KT-17686) takeLast(n) incorrectly performs drop(n) for Lists without random access
- [`KT-17704`](https://youtrack.jetbrains.com/issue/KT-17704) Update JavaDoc for ReentrantReadWriteLock.write to put more stress on the fact that to upgrade to write lock, read lock is first released.
- [`KT-17853`](https://youtrack.jetbrains.com/issue/KT-17853) JS: Confusing parameter names in 'Math.atan2`
- [`KT-18092`](https://youtrack.jetbrains.com/issue/KT-18092) Issue using kotlin-reflect with proguard: missing annotations Mutable and ReadOnly
- [`KT-18210`](https://youtrack.jetbrains.com/issue/KT-18210) JS String::match(regex) should have nullable return type

### Reflection

- [`KT-17055`](https://youtrack.jetbrains.com/issue/KT-17055) NPE in hashCode and equals of kotlin.jvm.internal.FunctionReference (on local functions)
- [`KT-17594`](https://youtrack.jetbrains.com/issue/KT-17594) Cache the result of val Class<T>.kotlin: KClass<T>
- [`KT-18494`](https://youtrack.jetbrains.com/issue/KT-18494) KNPE from Kotlin reflection (sometimes) in UtilKt.toJavaClass

### Tools

- [`KT-16692`](https://youtrack.jetbrains.com/issue/KT-16692) No-Arg-Constructor plugin should generate code to initialize delegates

### Tools. CLI

- [`KT-17696`](https://youtrack.jetbrains.com/issue/KT-17696) Allow kotlinc to take friend modules as .jar files
- [`KT-17697`](https://youtrack.jetbrains.com/issue/KT-17697) Allow kotlinc to take .java files as arguments
- [`KT-9370`](https://youtrack.jetbrains.com/issue/KT-9370) not possible to pass an argument that starts with "-" to a script using kotlinc
- [`KT-17100`](https://youtrack.jetbrains.com/issue/KT-17100) "kotlin" launcher script: do not add current working directory to classpath if explicit "-classpath" is specified
- [`KT-17140`](https://youtrack.jetbrains.com/issue/KT-17140) Warning "classpath entry points to a file that is not a jar file" could just be disabled
- [`KT-17264`](https://youtrack.jetbrains.com/issue/KT-17264) Change the format of advanced CLI arguments ("-X...") to require value after "=", not a whitespace
- [`KT-18180`](https://youtrack.jetbrains.com/issue/KT-18180) Modules not exported by java.se are not readable when compiling against JRE 9

### Tools. Gradle

- [`KT-15151`](https://youtrack.jetbrains.com/issue/KT-15151) Kapt3: Support incremental compilation of Java stubs
- [`KT-16298`](https://youtrack.jetbrains.com/issue/KT-16298) Gradle: IOException "Parent file doesn't exist:/.../artifact-difference.tab.len" on non-incremental clean after incremental build
- [`KT-17681`](https://youtrack.jetbrains.com/issue/KT-17681) Support the new API of Android Gradle plugin (2.4.0+)
- [`KT-17936`](https://youtrack.jetbrains.com/issue/KT-17936) Circular dependency between gradle tasks dataBindingExportBuildInfoDebug and compileDebugKotlin
- [`KT-17960`](https://youtrack.jetbrains.com/issue/KT-17960) Improve test of memory leak with Gradle daemon
- [`KT-18047`](https://youtrack.jetbrains.com/issue/KT-18047) Gradle kotlin options should use unset value as default for languageVersion and apiVersion

### Tools. J2K

- [`KT-16754`](https://youtrack.jetbrains.com/issue/KT-16754) J2K: Apply quick-fixes from EDT thread only
- [`KT-16816`](https://youtrack.jetbrains.com/issue/KT-16816) Java To Kotlin bug: if + chained assignment doesn't include brackets
- [`KT-17230`](https://youtrack.jetbrains.com/issue/KT-17230) J2K Deadlock
- [`KT-17712`](https://youtrack.jetbrains.com/issue/KT-17712) Exception in J2K during InlineCodegen convertion: com.intellij.psi.impl.source.JavaDummyHolder cannot be cast to com.intellij.psi.PsiJavaFile

### Tools. JPS

- [`KT-16568`](https://youtrack.jetbrains.com/issue/KT-16568) modulesWhoseInternalsAreVisible in ModuleDependencies are not filled in for JS projects
- [`KT-17387`](https://youtrack.jetbrains.com/issue/KT-17387) When compiling in the IDE, progress tracker says "configuring the compilation environment" when it clearly isn't
- [`KT-17665`](https://youtrack.jetbrains.com/issue/KT-17665) JPS: Kotlin: The '-d' option with a directory destination is ignored because '-module' is specified
- [`KT-17801`](https://youtrack.jetbrains.com/issue/KT-17801) Unresolved supertypes from JRE on JDK 9 in JPS

### Tools. Maven

- [`KT-17093`](https://youtrack.jetbrains.com/issue/KT-17093) Import from maven: please provide a special tag for coroutine option
- [`KT-10028`](https://youtrack.jetbrains.com/issue/KT-10028) Support parallel builds in maven
- [`KT-15050`](https://youtrack.jetbrains.com/issue/KT-15050) Random build failures using maven 3 (multi-thread) + bamboo
- [`KT-15318`](https://youtrack.jetbrains.com/issue/KT-15318) Intermitent Kotlin compilation errors
- [`KT-16283`](https://youtrack.jetbrains.com/issue/KT-16283) Maven compiler plugin warns, "Source root doesn't exist"
- [`KT-16743`](https://youtrack.jetbrains.com/issue/KT-16743) Update configuration options in Kotlin Maven plugin
- [`KT-16762`](https://youtrack.jetbrains.com/issue/KT-16762) Maven: JS compiler option main is missing

### Tools. REPL

- [`KT-5822`](https://youtrack.jetbrains.com/issue/KT-5822) Exception on package directive in REPL
- [`KT-10060`](https://youtrack.jetbrains.com/issue/KT-10060) REPL: Cannot execute more than 255 lines
- [`KT-17365`](https://youtrack.jetbrains.com/issue/KT-17365) REPL crash when referencing a variable whose definition threw an exception

### Tools. kapt

- [`KT-17245`](https://youtrack.jetbrains.com/issue/KT-17245) Kapt: Javac compiler arguments can't be specified in Gradle
- [`KT-17418`](https://youtrack.jetbrains.com/issue/KT-17418) "The following options were not recognized by any processor: '[kapt.kotlin.generated]'" warning from Javac shouldn't be shown even if no processor supports the generated annotation
- [`KT-17456`](https://youtrack.jetbrains.com/issue/KT-17456) kapt3: NoClassDefFound com/sun/tools/javac/util/Context
- [`KT-17567`](https://youtrack.jetbrains.com/issue/KT-17567) Kapt (1.1.2-eap-77) generates invalid Java stub for internal class
- [`KT-17620`](https://youtrack.jetbrains.com/issue/KT-17620) Kapt3 IC: avoid running AP when API is not changed
- [`KT-17959`](https://youtrack.jetbrains.com/issue/KT-17959) Kapt3 doesn't preserve method parameter names for abstract methods
- [`KT-17999`](https://youtrack.jetbrains.com/issue/KT-17999) Cannot use KAPT3 1.1.2-4 in Android Studio java libs (null TypeCastException to WrappedVariantData<*> on Gradle Sync)

## 1.1.2

### Compiler

#### Front-end

- [`KT-16113`](https://youtrack.jetbrains.com/issue/KT-16113) Support destructuring parameters of suspend lambda with suspend componentX
- [`KT-3805`](https://youtrack.jetbrains.com/issue/KT-3805) Report error on double constants out of range
- [`KT-6014`](https://youtrack.jetbrains.com/issue/KT-6014) Wrong ABSTRACT_MEMBER_NOT_IMPLEMENTED for toString implemented by delegation
- [`KT-8959`](https://youtrack.jetbrains.com/issue/KT-8959) Missing diagnostic when trying to call inner class constructor qualificated with outer class name
- [`KT-12477`](https://youtrack.jetbrains.com/issue/KT-12477) Do not report 'const' inapplicability on property of error type
- [`KT-11010`](https://youtrack.jetbrains.com/issue/KT-11010) NDFDE for local object with type parameters
- [`KT-12881`](https://youtrack.jetbrains.com/issue/KT-12881) Descriptor wasn't found for declaration TYPE_PARAMETER
- [`KT-13342`](https://youtrack.jetbrains.com/issue/KT-13342) Unqualified super call should not resolve to a method of supertype overriden in another supertype
- [`KT-14236`](https://youtrack.jetbrains.com/issue/KT-14236) Allow to use emptyArray in annotation
- [`KT-14536`](https://youtrack.jetbrains.com/issue/KT-14536) IllegalStateException: Type parameter T not found for lazy class Companion at LazyDeclarationResolver visitTypeParameter
- [`KT-14865`](https://youtrack.jetbrains.com/issue/KT-14865) Throwable exception at KotlinParser parseLambdaExpression on typing { inside a string inside a lambda
- [`KT-15516`](https://youtrack.jetbrains.com/issue/KT-15516) Compiler error when passing suspending extension-functions as parameter and casting stuff to Any
- [`KT-15802`](https://youtrack.jetbrains.com/issue/KT-15802) Java constant referenced using subclass is not considered a constant expression
- [`KT-15872`](https://youtrack.jetbrains.com/issue/KT-15872) Constant folding is mistakenly triggered for user function
- [`KT-15901`](https://youtrack.jetbrains.com/issue/KT-15901) Unstable smart cast target after type check
- [`KT-15951`](https://youtrack.jetbrains.com/issue/KT-15951) Callable reference to class constructor from object is not resolved
- [`KT-16232`](https://youtrack.jetbrains.com/issue/KT-16232) Prohibit objects inside inner classes
- [`KT-16233`](https://youtrack.jetbrains.com/issue/KT-16233) Prohibit inner sealed classes
- [`KT-16250`](https://youtrack.jetbrains.com/issue/KT-16250) Import methods from typealias to object throws compiler exception  "Should be class or package: typealias"
- [`KT-16272`](https://youtrack.jetbrains.com/issue/KT-16272) Missing deprecation and SinceKotlin-related diagnostic for variable as function call
- [`KT-16278`](https://youtrack.jetbrains.com/issue/KT-16278) Public member method can't be used for callable reference because of private static with the same name
- [`KT-16372`](https://youtrack.jetbrains.com/issue/KT-16372) 'mod is deprecated' warning should not be shown when language version is 1.0
- [`KT-16484`](https://youtrack.jetbrains.com/issue/KT-16484) SimpleTypeImpl should not be created for error type: ErrorScope
- [`KT-16528`](https://youtrack.jetbrains.com/issue/KT-16528) Error: Loop in supertypes when using Java classes with type parameters having raw interdependent supertypes
- [`KT-16538`](https://youtrack.jetbrains.com/issue/KT-16538) No smart cast when equals is present
- [`KT-16782`](https://youtrack.jetbrains.com/issue/KT-16782) Enum entry is incorrectly forbidden on LHS of '::' with language version 1.0
- [`KT-16815`](https://youtrack.jetbrains.com/issue/KT-16815) Assertion error from compiler: unexpected classifier: class DeserializedTypeAliasDescriptor
- [`KT-16931`](https://youtrack.jetbrains.com/issue/KT-16931) Compiler cannot see inner class when for outer class exist folder with same name
- [`KT-16956`](https://youtrack.jetbrains.com/issue/KT-16956) Prohibit using function calls inside default parameter values of annotations
- [`KT-8187`](https://youtrack.jetbrains.com/issue/KT-8187) IAE on anonymous object in the delegation specifier list
- [`KT-8813`](https://youtrack.jetbrains.com/issue/KT-8813) Do not report unused parameters for anonymous functions
- [`KT-12112`](https://youtrack.jetbrains.com/issue/KT-12112) Do not consider nullability of error functions and properties for smart casts
- [`KT-12276`](https://youtrack.jetbrains.com/issue/KT-12276) No warning for unnecessary non-null assertion after method call with generic return type
- [`KT-13648`](https://youtrack.jetbrains.com/issue/KT-13648) Spurious warning: "Elvis operator (?:) always returns the left operand of non-nullable type (???..???)"
- [`KT-16264`](https://youtrack.jetbrains.com/issue/KT-16264) Forbid usage of _ without backticks
- [`KT-16875`](https://youtrack.jetbrains.com/issue/KT-16875) Decrease severity of unused parameter in lambda to weak warning
- [`KT-17136`](https://youtrack.jetbrains.com/issue/KT-17136) ModuleDescriptorImpl.allImplementingModules should be evaluated lazily
- [`KT-17214`](https://youtrack.jetbrains.com/issue/KT-17214) Do not show warning about useless elvis for error function types
- [`KT-13740`](https://youtrack.jetbrains.com/issue/KT-13740) Plugin crashes at accidentally wrong annotation argument type
- [`KT-17597`](https://youtrack.jetbrains.com/issue/KT-17597) Pattern::compile resolves to private instance method in 1.1.2

#### Back-end

- [`KT-8689`](https://youtrack.jetbrains.com/issue/KT-8689) NoSuchMethodError on local functions inside inlined lambda with variables captured from outer context
- [`KT-11314`](https://youtrack.jetbrains.com/issue/KT-11314) Abstract generic class with Array<Array<T>> parameter compiles fine but fails at runtime with "Bad type on operand stack" VerifyError
- [`KT-12839`](https://youtrack.jetbrains.com/issue/KT-12839) Two null checks are generated when manually null checking platform type
- [`KT-14565`](https://youtrack.jetbrains.com/issue/KT-14565) Cannot pop operand off empty stack when compiling enum class
- [`KT-14566`](https://youtrack.jetbrains.com/issue/KT-14566) Make kotlin.jvm.internal.Ref$...Ref classes serializable
- [`KT-14567`](https://youtrack.jetbrains.com/issue/KT-14567) VerifyError: Bad type on operand stack (generics with operator methods)
- [`KT-14607`](https://youtrack.jetbrains.com/issue/KT-14607) Incorrect class name "ava/lang/Void from AsyncTask extension function
- [`KT-14811`](https://youtrack.jetbrains.com/issue/KT-14811) Unecessary checkcast generated in parameterized functions.
- [`KT-14963`](https://youtrack.jetbrains.com/issue/KT-14963) unnecessary checkcast java/lang/Object
- [`KT-15105`](https://youtrack.jetbrains.com/issue/KT-15105) Comparing Chars in a Pair results in ClassCastException
- [`KT-15109`](https://youtrack.jetbrains.com/issue/KT-15109) Subclass from a type alias with named parameter in constructor will produce compiler exception
- [`KT-15192`](https://youtrack.jetbrains.com/issue/KT-15192) Compiler crashes on certain companion objects: "Error generating constructors of class Companion with kind IMPLEMENTATION"
- [`KT-15424`](https://youtrack.jetbrains.com/issue/KT-15424) javac crash when calling Kotlin function having generic varargs with default and @JvmOverloads
- [`KT-15574`](https://youtrack.jetbrains.com/issue/KT-15574) Can't instantiate Array through Type Alias
- [`KT-15594`](https://youtrack.jetbrains.com/issue/KT-15594) java.lang.VerifyError when referencing normal getter in @JvmStatic getters inside an object
- [`KT-15759`](https://youtrack.jetbrains.com/issue/KT-15759) tailrec suspend function fails to compile
- [`KT-15862`](https://youtrack.jetbrains.com/issue/KT-15862) Inline generic functions can unexpectedly box primitives
- [`KT-15871`](https://youtrack.jetbrains.com/issue/KT-15871) Unnecessary boxing for equality operator on inlined primitive values
- [`KT-15993`](https://youtrack.jetbrains.com/issue/KT-15993) Property annotations are stored in private fields and killed by obfuscators
- [`KT-15997`](https://youtrack.jetbrains.com/issue/KT-15997) Reified generics don't work properly with crossinline functions
- [`KT-16077`](https://youtrack.jetbrains.com/issue/KT-16077) Redundant private getter for private var in a class within a JvmMultifileClass annotated file
- [`KT-16194`](https://youtrack.jetbrains.com/issue/KT-16194) Code with unnecessary safe call contains redundant boxing/unboxing for primitive values
- [`KT-16245`](https://youtrack.jetbrains.com/issue/KT-16245) Redundant null-check generated for a cast of already non-nullable value
- [`KT-16532`](https://youtrack.jetbrains.com/issue/KT-16532) Kotlin 1.1 RC - Android cross-inline synchronized won't run
- [`KT-16555`](https://youtrack.jetbrains.com/issue/KT-16555) VerifyError: Bad type on operand stack
- [`KT-16713`](https://youtrack.jetbrains.com/issue/KT-16713) Insufficient maximum stack size
- [`KT-16720`](https://youtrack.jetbrains.com/issue/KT-16720) ClassCastException during compilation
- [`KT-16732`](https://youtrack.jetbrains.com/issue/KT-16732) Type 'java/lang/Number' (current frame, stack[0]) is not assignable to 'java/lang/Character
- [`KT-16929`](https://youtrack.jetbrains.com/issue/KT-16929) `VerifyError` when using bound method reference on generic property
- [`KT-16412`](https://youtrack.jetbrains.com/issue/KT-16412) Exception from compiler when try call SAM constructor where argument is callable reference to nested class inside object
- [`KT-17210`](https://youtrack.jetbrains.com/issue/KT-17210) Smartcast failure results in "Bad type operand on stack" runtime error

### Tools

- [`KT-15420`](https://youtrack.jetbrains.com/issue/KT-15420) Maven, all-open plugin: in console the settings of all-open are always reported as empty
- [`KT-11916`](https://youtrack.jetbrains.com/issue/KT-11916) Provide incremental compilation for Maven
- [`KT-15946`](https://youtrack.jetbrains.com/issue/KT-15946) Kotlin-JPA plugin support for @Embeddable
- [`KT-16627`](https://youtrack.jetbrains.com/issue/KT-16627) Do not make private members open in all-open plugin
- [`KT-16699`](https://youtrack.jetbrains.com/issue/KT-16699) Script resolving doesn't work with custom templates located in an external jar
- [`KT-16812`](https://youtrack.jetbrains.com/issue/KT-16812) import in .kts file does not works
- [`KT-16927`](https://youtrack.jetbrains.com/issue/KT-16927) Using `KotlinJsr223JvmLocalScriptEngineFactory` causes multiple warnings
- [`KT-15562`](https://youtrack.jetbrains.com/issue/KT-15562) Service is dying
- [`KT-17125`](https://youtrack.jetbrains.com/issue/KT-17125) > Failed to apply plugin [id 'kotlin'] > For input string: “”

#### Kapt

- [`KT-12432`](https://youtrack.jetbrains.com/issue/KT-12432) Dagger 2 does not generate Component which was referenced from Kotlin file.
- [`KT-8558`](https://youtrack.jetbrains.com/issue/KT-8558) KAPT only works with service-declared annotation processors
- [`KT-16753`](https://youtrack.jetbrains.com/issue/KT-16753) kapt3 generates invalid stubs when IC is enabled
- [`KT-16458`](https://youtrack.jetbrains.com/issue/KT-16458) kotlin-kapt / kapt3:  "cannot find symbol" error for companion object with same name as enclosing class
- [`KT-14478`](https://youtrack.jetbrains.com/issue/KT-14478) Add APT / Kapt support to the maven plugin
- [`KT-14070`](https://youtrack.jetbrains.com/issue/KT-14070) Kapt3: kapt doesn't compile generated Kotlin files and doesn't use the "kapt.kotlin.generated" folder anymore
- [`KT-16990`](https://youtrack.jetbrains.com/issue/KT-16990) Kapt3: java.io.File cannot be cast to java.lang.String
- [`KT-16965`](https://youtrack.jetbrains.com/issue/KT-16965) Error:Kotlin: Multiple values are not allowed for plugin option org.jetbrains.kotlin.kapt:output
- [`KT-16184`](https://youtrack.jetbrains.com/issue/KT-16184) AbstractMethodError in Kapt3ComponentRegistrar while compiling from IntelliJ  2016.3.4 using Kotlin 1.1.0-beta-38

#### Gradle

- [`KT-15084`](https://youtrack.jetbrains.com/issue/KT-15084) Navigation into sources of gradle-script-kotlin doesn't work
- [`KT-16003`](https://youtrack.jetbrains.com/issue/KT-16003) Gradle Plugin Fails When Run From Jenkins On Multiple Nodes
- [`KT-16585`](https://youtrack.jetbrains.com/issue/KT-16585) Kotlin Gradle Plugin makes using Gradle Java incremental compiler not work
- [`KT-16902`](https://youtrack.jetbrains.com/issue/KT-16902) Gradle plugin compilation on daemon fails on Linux ARM
- [`KT-14619`](https://youtrack.jetbrains.com/issue/KT-14619) Gradle: The '-d' option with a directory destination is ignored because '-module' is specified
- [`KT-12792`](https://youtrack.jetbrains.com/issue/KT-12792) Automatically configure standard library dependency and set its version equal to compiler version if not specified
- [`KT-15994`](https://youtrack.jetbrains.com/issue/KT-15994) Compiler arguments are not copied from the main compile task to kapt task
- [`KT-16820`](https://youtrack.jetbrains.com/issue/KT-16820) Changing compileKotlin.destinationDir leads to failure in :copyMainKotlinClasses task due to an NPE
- [`KT-16917`](https://youtrack.jetbrains.com/issue/KT-16917) First connection to daemon after start timeouts when DNS is slow
- [`KT-16580`](https://youtrack.jetbrains.com/issue/KT-16580) Kotlin gradle plugin cannot resolve the kotlin compiler 

### Android support

- [`KT-16624`](https://youtrack.jetbrains.com/issue/KT-16624) Implement quickfix "Add TargetApi/RequiresApi annotation" for Android api issues
- [`KT-16625`](https://youtrack.jetbrains.com/issue/KT-16625) Implement quickfix "Surround with if (VERSION.SDK_INT >= VERSION_CODES.SOME_VERSION) { ... }" for Android api issues
- [`KT-16840`](https://youtrack.jetbrains.com/issue/KT-16840) Kotlin Gradle plugin fails with Android Gradle plugin 2.4.0-alpha1
- [`KT-16897`](https://youtrack.jetbrains.com/issue/KT-16897) Gradle plugin 1.1.1 duplicates all main classes into Android instrumentation test APK
- [`KT-16957`](https://youtrack.jetbrains.com/issue/KT-16957) Android Extensions: Support Dialog class
- [`KT-15023`](https://youtrack.jetbrains.com/issue/KT-15023) Android `gradle installDebugAndroidTest` fails unless you first call `gradle assembleDebugAndroidTest`
- [`KT-12769`](https://youtrack.jetbrains.com/issue/KT-12769) "Name for method must be provided" error occurs on trying to use spaces in method name in integration tests in Android
- [`KT-12819`](https://youtrack.jetbrains.com/issue/KT-12819) Kotlin Lint: False positive for "Unconditional layout inflation" when using elvis operator
- [`KT-15116`](https://youtrack.jetbrains.com/issue/KT-15116) Kotlin Lint: problems in property accessors are not reported
- [`KT-15156`](https://youtrack.jetbrains.com/issue/KT-15156) Kotlin Lint: problems in annotation parameters are not reported
- [`KT-15179`](https://youtrack.jetbrains.com/issue/KT-15179) Kotlin Lint: problems inside local function are not reported
- [`KT-14870`](https://youtrack.jetbrains.com/issue/KT-14870) Kotlin Lint: problems inside local class are not reported
- [`KT-14920`](https://youtrack.jetbrains.com/issue/KT-14920) Kotlin Lint: "Android Lint for Kotlin | Incorrect support annotation usage" inspection does not report problems
- [`KT-14947`](https://youtrack.jetbrains.com/issue/KT-14947) Kotlin Lint: "Calling new methods on older versions" could suggest specific quick fixes
- [`KT-12741`](https://youtrack.jetbrains.com/issue/KT-12741) Android Extensions: Enable IDE plugin only if it is enabled in the build.gradle file
- [`KT-13122`](https://youtrack.jetbrains.com/issue/KT-13122) Implement '@RequiresApi' intention for android and don't report warning on annotated classes
- [`KT-16680`](https://youtrack.jetbrains.com/issue/KT-16680) Stack overflow in UAST containsLocalTypes()
- [`KT-15451`](https://youtrack.jetbrains.com/issue/KT-15451) Support "Android String Reference" folding in Kotlin files
- [`KT-16132`](https://youtrack.jetbrains.com/issue/KT-16132) Renaming property provided by kotlinx leads to renaming another members
- [`KT-17200`](https://youtrack.jetbrains.com/issue/KT-17200) Unable to build an android project
- [`KT-13104`](https://youtrack.jetbrains.com/issue/KT-13104) Incorrect resource name in Activity after renaming ID attribute value in layout file
- [`KT-17436`](https://youtrack.jetbrains.com/issue/KT-17436) Refactor | Rename android:id corrupts R.id references in kotlin code
- [`KT-17255`](https://youtrack.jetbrains.com/issue/KT-17255) Kotlin 1.1.2 EAP is broken with 2.4.0-alpha3
- [`KT-17610`](https://youtrack.jetbrains.com/issue/KT-17610) "Unknown reference: kotlinx"

### IDE

- [`KT-6159`](https://youtrack.jetbrains.com/issue/KT-6159) Inline Method refactoring
- [`KT-4578`](https://youtrack.jetbrains.com/issue/KT-4578) Intention to move property between class body and constructor parameter
- [`KT-8568`](https://youtrack.jetbrains.com/issue/KT-8568) Provide a QuickFix to replace type `Array<Int>` in annotation with `IntArray`
- [`KT-10393`](https://youtrack.jetbrains.com/issue/KT-10393) Detect calls to functions returning a lambda from expression body which ignore the return value
- [`KT-11393`](https://youtrack.jetbrains.com/issue/KT-11393) Inspection to highlight and warn on usage of internal members in other module from Java
- [`KT-12004`](https://youtrack.jetbrains.com/issue/KT-12004) IDE inspection that destructuring variable name matches the other name in data class
- [`KT-12183`](https://youtrack.jetbrains.com/issue/KT-12183) Intention converting several calls with same receiver to 'with'/`apply`/`run`
- [`KT-13111`](https://youtrack.jetbrains.com/issue/KT-13111) Support bound references in lambda-to-reference intention / inspection
- [`KT-15966`](https://youtrack.jetbrains.com/issue/KT-15966) Create quickfix for DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE
- [`KT-16074`](https://youtrack.jetbrains.com/issue/KT-16074) Introduce a quick-fix adding noinline modifier for a value parameter of suspend function type 
- [`KT-16131`](https://youtrack.jetbrains.com/issue/KT-16131) Add quickfix for: Cannot access member: it is invisible (private in supertype)
- [`KT-16188`](https://youtrack.jetbrains.com/issue/KT-16188) Add create class quickfix
- [`KT-16258`](https://youtrack.jetbrains.com/issue/KT-16258) Add intention to add missing components to destructuring assignment
- [`KT-16292`](https://youtrack.jetbrains.com/issue/KT-16292) Support "Reference to lambda" for bound references
- [`KT-11234`](https://youtrack.jetbrains.com/issue/KT-11234) Debugger won't hit breakpoint in nested lamba
- [`KT-12002`](https://youtrack.jetbrains.com/issue/KT-12002) Improve completion for closure parameters to work in more places
- [`KT-15768`](https://youtrack.jetbrains.com/issue/KT-15768) It would be nice to show in Kotlin facet what compiler plugins are on and their options
- [`KT-16022`](https://youtrack.jetbrains.com/issue/KT-16022) Kotlin facet: provide UI to navigate to project settings
- [`KT-16214`](https://youtrack.jetbrains.com/issue/KT-16214) Do not hide package kotlin.reflect.jvm.internal from auto-import and completion, inside package "kotlin.reflect"
- [`KT-16647`](https://youtrack.jetbrains.com/issue/KT-16647) Don't create kotlinc.xml if the settings don't differ from the defaults
- [`KT-16649`](https://youtrack.jetbrains.com/issue/KT-16649) All Gradle related classes should be moved to optional dependency section of plugin.xml
- [`KT-16800`](https://youtrack.jetbrains.com/issue/KT-16800) Autocomplete for closure with single arguments

#### Bug fixes

- [`KT-16316`](https://youtrack.jetbrains.com/issue/KT-16316) IDE: don't show Kotlin Scripting section when target platform is JavaScript
- [`KT-16317`](https://youtrack.jetbrains.com/issue/KT-16317) IDE: some fields stay enabled in an facet when use project settings was chosen
- [`KT-16596`](https://youtrack.jetbrains.com/issue/KT-16596) Hang in IntelliJ while scanning zips
- [`KT-16646`](https://youtrack.jetbrains.com/issue/KT-16646) The flag to enable coroutines does not sync from gradle file in Android Studio
- [`KT-16788`](https://youtrack.jetbrains.com/issue/KT-16788) Importing Kotlin Maven projects results in invalid .iml
- [`KT-16827`](https://youtrack.jetbrains.com/issue/KT-16827) kotlin javascript module not recognized by gradle sync when an android module is present
- [`KT-16848`](https://youtrack.jetbrains.com/issue/KT-16848) Regression: completion after dot in string interpolation expression doesn't work if there are no curly braces
- [`KT-16888`](https://youtrack.jetbrains.com/issue/KT-16888) "Multiple values are not allowed for plugin option org.jetbrains.kotlin.android:package" when rebuilding project
- [`KT-16980`](https://youtrack.jetbrains.com/issue/KT-16980) Accessing language version settings for a module performs runtime version detection on every access with no caching
- [`KT-16991`](https://youtrack.jetbrains.com/issue/KT-16991) Navigate to receiver from this in extension function
- [`KT-16992`](https://youtrack.jetbrains.com/issue/KT-16992) Navigate to lambda start from auto-generated 'it' parameter 
- [`KT-12264`](https://youtrack.jetbrains.com/issue/KT-12264) AssertionError: Resolver for 'completion/highlighting in LibrarySourceInfo for platform JVM' does not know how to resolve ModuleProductionSourceInfo
- [`KT-13734`](https://youtrack.jetbrains.com/issue/KT-13734) Annotated element search is slow
- [`KT-14710`](https://youtrack.jetbrains.com/issue/KT-14710) Sample references aren't resolved in IDE
- [`KT-16415`](https://youtrack.jetbrains.com/issue/KT-16415) Dependency leakage with Kotlin IntelliJ plugin, using gradle-script-kotlin, and the gradle-intellij-plugin
- [`KT-16837`](https://youtrack.jetbrains.com/issue/KT-16837) Slow typing in Kotlin file because of ImportFixBase
- [`KT-16926`](https://youtrack.jetbrains.com/issue/KT-16926) 'implement' dependency is not transitive when importing gradle project to IDEA
- [`KT-17141`](https://youtrack.jetbrains.com/issue/KT-17141) Running test from gutter icon fails in AS 2.4 Preview 3
- [`KT-17162`](https://youtrack.jetbrains.com/issue/KT-17162) Plain-text Java copy-paste to Kotlin file results in exception
- [`KT-16714`](https://youtrack.jetbrains.com/issue/KT-16714) J2K: Write access is allowed from event dispatch thread only
- [`KT-14058`](https://youtrack.jetbrains.com/issue/KT-14058) Unexpected error MISSING_DEPENDENCY_CLASS
- [`KT-9275`](https://youtrack.jetbrains.com/issue/KT-9275) Unhelpful IDE warning "Configure Kotlin"
- [`KT-15279`](https://youtrack.jetbrains.com/issue/KT-15279) 'Kotlin not configured message' should not be displayed while gradle sync is in progress
- [`KT-11828`](https://youtrack.jetbrains.com/issue/KT-11828) Configure Kotlin in Project: failure for Gradle modules without build.gradle (IDEA creates them)
- [`KT-16571`](https://youtrack.jetbrains.com/issue/KT-16571) Configure Kotlin in Project does not suggest just published version
- [`KT-16590`](https://youtrack.jetbrains.com/issue/KT-16590) Configure kotlin warning popup after each sync gradle
- [`KT-16353`](https://youtrack.jetbrains.com/issue/KT-16353) Configure Kotlin in Project: configurators are not suggested for Gradle module in non-Gradle project with separate sub-modules for source sets
- [`KT-16381`](https://youtrack.jetbrains.com/issue/KT-16381) Configure Kotlin dialog suggests modules already configured with other platforms
- [`KT-16401`](https://youtrack.jetbrains.com/issue/KT-16401) Configure Kotlin in the project adds incorrect dependency kotlin-stdlib-jre8 to 1.0.x language
- [`KT-12261`](https://youtrack.jetbrains.com/issue/KT-12261) Partial body resolve doesn't resolve anything in object literal used as an expression body of a method
- [`KT-13013`](https://youtrack.jetbrains.com/issue/KT-13013) "Go to Type Declaration" doesn't work for extension receiver and implict lambda parameter
- [`KT-13135`](https://youtrack.jetbrains.com/issue/KT-13135) IDE goes in an infinite indexing loop if a .kotlin_module file is corrupted
- [`KT-14129`](https://youtrack.jetbrains.com/issue/KT-14129) for/iter postfix templates should be applied for string, ranges and mutable collections
- [`KT-14134`](https://youtrack.jetbrains.com/issue/KT-14134) Allow to apply for/iter postfix template to map
- [`KT-14871`](https://youtrack.jetbrains.com/issue/KT-14871) Idea and Maven is not in sync with ModuleKind for Kotlin projects
- [`KT-14986`](https://youtrack.jetbrains.com/issue/KT-14986) Disable postfix completion when typing package statements
- [`KT-15200`](https://youtrack.jetbrains.com/issue/KT-15200) Show implementation should show inherited classes if a typealias to base class/interface is used
- [`KT-15398`](https://youtrack.jetbrains.com/issue/KT-15398) Annotations find usages in annotation instance site
- [`KT-15536`](https://youtrack.jetbrains.com/issue/KT-15536) Highlight usages: Class with primary constructor isn't highlighted when caret is on constructor invocation
- [`KT-15628`](https://youtrack.jetbrains.com/issue/KT-15628) Change error message if both KotlinJavaRuntime and KotlinJavaScript libraries are present in the module dependencies
- [`KT-15947`](https://youtrack.jetbrains.com/issue/KT-15947) Kotlin facet: Target platform on importing from a maven project should be filled the same way for different artifacts
- [`KT-16023`](https://youtrack.jetbrains.com/issue/KT-16023) Kotlin facet: When "Use project settings" is enabled, respective fields should show values from the project settings
- [`KT-16698`](https://youtrack.jetbrains.com/issue/KT-16698) Kotlin facet: modules created from different gradle sourcesets have the same module options
- [`KT-16700`](https://youtrack.jetbrains.com/issue/KT-16700) Kotlin facet: jdkHome path containing spaces splits into several additional args after import
- [`KT-16776`](https://youtrack.jetbrains.com/issue/KT-16776) Kotlin facet, import from maven: free arguments from submodule doesn't override arguments from parent module
- [`KT-16550`](https://youtrack.jetbrains.com/issue/KT-16550) Kotlin facet from Maven: provide error messages if additional command line parameters are set several times
- [`KT-16313`](https://youtrack.jetbrains.com/issue/KT-16313) Kotlin facet: unify filling up information about included AllOpen/NoArg plugins on importing from Maven and Gradle
- [`KT-16342`](https://youtrack.jetbrains.com/issue/KT-16342) Kotlin facet: JavaScript platform is not detected if there are 2 versions of stdlib in dependencies
- [`KT-16032`](https://youtrack.jetbrains.com/issue/KT-16032) Kotlin code formatter merges comment line with non-comment line
- [`KT-16038`](https://youtrack.jetbrains.com/issue/KT-16038) UI blocked on pasting java code into a kotlin file
- [`KT-16062`](https://youtrack.jetbrains.com/issue/KT-16062) Kotlin breakpoint doesn't work in some lambda in Rider project.
- [`KT-15855`](https://youtrack.jetbrains.com/issue/KT-15855) Can't evaluate expression in @JvmStatic method
- [`KT-16667`](https://youtrack.jetbrains.com/issue/KT-16667) Kotlin debugger "smart step into" fail on method defined in the middle of class hierarchy
- [`KT-16078`](https://youtrack.jetbrains.com/issue/KT-16078) Formatter puts empty body braces on different lines when KDoc is present
- [`KT-16265`](https://youtrack.jetbrains.com/issue/KT-16265) Parameter info doesn't work with type alias constructor
- [`KT-14727`](https://youtrack.jetbrains.com/issue/KT-14727) Wrong samples for some postfix templates

##### Inspections / Quickfixes

- [`KT-17002`](https://youtrack.jetbrains.com/issue/KT-17002) Make "Lambda to Reference" inspection off by default
- [`KT-14402`](https://youtrack.jetbrains.com/issue/KT-14402) Inspection "Use destructuring declaration" for lambdas doesn't work when parameter is of type Pair
- [`KT-16857`](https://youtrack.jetbrains.com/issue/KT-16857) False "Remove redundant 'let'" suggestion
- [`KT-16928`](https://youtrack.jetbrains.com/issue/KT-16928) Surround with null check quickfix works badly in case of qualifier
- [`KT-15870`](https://youtrack.jetbrains.com/issue/KT-15870) Move quick fix of "Package name does not match containing directory" inspection: Throwable "AWT events are not allowed inside write action"
- [`KT-16128`](https://youtrack.jetbrains.com/issue/KT-16128) 'Add label to loop' QF proposed when there's already a label
- [`KT-16828`](https://youtrack.jetbrains.com/issue/KT-16828) Don't suggest destructing declarations if not all components are used
- [`KT-17022`](https://youtrack.jetbrains.com/issue/KT-17022) Replace deprecated in the whole project may miss some usages in expression body

##### Refactorings, Intentions

- [`KT-7516`](https://youtrack.jetbrains.com/issue/KT-7516) Rename refactoring doesn't rename related labels
- [`KT-7520`](https://youtrack.jetbrains.com/issue/KT-7520) Exception when try rename label from usage
- [`KT-8955`](https://youtrack.jetbrains.com/issue/KT-8955) Refactor / Move package: KNPE at KotlinMoveDirectoryWithClassesHelper.postProcessUsages() with not matching package statement
- [`KT-11863`](https://youtrack.jetbrains.com/issue/KT-11863) Refactor / Move: moving referred file level elements to another package keeps reference to old FQN
- [`KT-13190`](https://youtrack.jetbrains.com/issue/KT-13190) Refactor / Move: no warning on moving class containing internal member to different module
- [`KT-13341`](https://youtrack.jetbrains.com/issue/KT-13341) Convert lambda to function reference intention is not available for object member calls
- [`KT-13755`](https://youtrack.jetbrains.com/issue/KT-13755) When (java?) class is moved redundant imports are not removed
- [`KT-13911`](https://youtrack.jetbrains.com/issue/KT-13911) Refactor / Move: "Problems Detected" dialog is not shown on moving whole .kt file
- [`KT-14401`](https://youtrack.jetbrains.com/issue/KT-14401) Can't rename implicit lambda parameter 'it' when caret is placed right after the last character
- [`KT-14483`](https://youtrack.jetbrains.com/issue/KT-14483) "Argument of NotNull parameter must be not null" in KotlinTryCatchSurrounder when using "try" postfix template
- [`KT-15075`](https://youtrack.jetbrains.com/issue/KT-15075) KNPE in "Specify explicit lambda signature"
- [`KT-15190`](https://youtrack.jetbrains.com/issue/KT-15190) Refactor / Move: false Problems Detected on moving class using parent's protected member
- [`KT-15250`](https://youtrack.jetbrains.com/issue/KT-15250) Convert anonymous object to lambda is shown when conversion not possible due implicit calls on this
- [`KT-15339`](https://youtrack.jetbrains.com/issue/KT-15339) Extract Superclass is enabled for any element: CommonRefactoringUtil$RefactoringErrorHintException: "Superclass cannot be extracted from interface" at ExtractSuperRefactoring.performRefactoring()
- [`KT-15559`](https://youtrack.jetbrains.com/issue/KT-15559) Kotlin: Moving classes to different packages breaks references to companion object's properties
- [`KT-15556`](https://youtrack.jetbrains.com/issue/KT-15556) Convert lambda to reference isn't proposed for parameterless constructor
- [`KT-15586`](https://youtrack.jetbrains.com/issue/KT-15586) ISE during "Move to a separate file"
- [`KT-15822`](https://youtrack.jetbrains.com/issue/KT-15822) Move class refactoring leaves unused imports
- [`KT-16108`](https://youtrack.jetbrains.com/issue/KT-16108) Cannot rename class on the companion object reference
- [`KT-16198`](https://youtrack.jetbrains.com/issue/KT-16198) Extract method refactoring should order parameters by first usage
- [`KT-17006`](https://youtrack.jetbrains.com/issue/KT-17006) Refactor / Move: usage of library function is reported as problem on move between modules with different library versions
- [`KT-17032`](https://youtrack.jetbrains.com/issue/KT-17032) Refactor / Move updates references to not moved class from the same file
- [`KT-11907`](https://youtrack.jetbrains.com/issue/KT-11907) Move to package renames file to temp.kt
- [`KT-16468`](https://youtrack.jetbrains.com/issue/KT-16468) Destructure declaration intention should be applicable for Pair
- [`KT-16162`](https://youtrack.jetbrains.com/issue/KT-16162) IAE for destructuring declaration entry from KotlinFinalClassOrFunSpringInspection
- [`KT-16556`](https://youtrack.jetbrains.com/issue/KT-16556) Move refactoring shows Refactoring cannot be performed warning.
- [`KT-16605`](https://youtrack.jetbrains.com/issue/KT-16605) NPE caused by Rename Refactoring of backing field when caret is after the last character
- [`KT-16809`](https://youtrack.jetbrains.com/issue/KT-16809) Move refactoring fails badly
- [`KT-16903`](https://youtrack.jetbrains.com/issue/KT-16903) "Convert to primary constructor" doesn't update supertype constructor call in supertypes list in case of implicit superclass constructor call

### JS

- [`KT-6627`](https://youtrack.jetbrains.com/issue/KT-6627) JS: test sources doesn't compile from IDE
- [`KT-13610`](https://youtrack.jetbrains.com/issue/KT-13610) JS: boxed Double.NaN is not equal to itself
- [`KT-16012`](https://youtrack.jetbrains.com/issue/KT-16012) JS: prohibit nested declarations, except interfaces inside external interface
- [`KT-16043`](https://youtrack.jetbrains.com/issue/KT-16043) IDL: mark inline helper function as InlineOnly
- [`KT-16058`](https://youtrack.jetbrains.com/issue/KT-16058) JS: getValue/setValue don't work if they are declared as suspend
- [`KT-16164`](https://youtrack.jetbrains.com/issue/KT-16164) JS: Bad getCallableRef in suspend function
- [`KT-16350`](https://youtrack.jetbrains.com/issue/KT-16350) KotlinJS - wrong code generated when temporary variables generated for RHS of `&&` operation
- [`KT-16377`](https://youtrack.jetbrains.com/issue/KT-16377) JS: losing declarations of temporary variables in secondary constructors
- [`KT-16545`](https://youtrack.jetbrains.com/issue/KT-16545) JS: ::class crashes at runtime for primitive types (e.g. Int::class, or Double::class)
- [`KT-16144`](https://youtrack.jetbrains.com/issue/KT-16144) JS: inliner can't find function called through inheritor ("fake" override) from another module

### Reflection

- [`KT-9453`](https://youtrack.jetbrains.com/issue/KT-9453) ClassCastException: java.lang.Class cannot be cast to kotlin.reflect.KClass
- [`KT-11254`](https://youtrack.jetbrains.com/issue/KT-11254) Make callable references Serializable on JVM
- [`KT-11316`](https://youtrack.jetbrains.com/issue/KT-11316) NPE in hashCode of KProperty object created for delegated property
- [`KT-12630`](https://youtrack.jetbrains.com/issue/KT-12630) KotlinReflectionInternalError on referencing some functions from stdlib
- [`KT-14731`](https://youtrack.jetbrains.com/issue/KT-14731) When starting application from test source root, kotlin function reflection fails in objects defined in sources

### Libraries

- [`KT-16922`](https://youtrack.jetbrains.com/issue/KT-16922) buildSequence/Iterator: Infinite sequence terminates prematurely
- [`KT-16923`](https://youtrack.jetbrains.com/issue/KT-16923) Progression iterator doesn't throw after completion
- [`KT-16994`](https://youtrack.jetbrains.com/issue/KT-16994) Classify sequence operations as stateful/stateless and intermediate/terminal
- [`KT-9786`](https://youtrack.jetbrains.com/issue/KT-9786) String.trimIndent doc is misleading
- [`KT-16572`](https://youtrack.jetbrains.com/issue/KT-16572) Add links to Mozilla Developer Network to kdocs of classes that we generate from IDL
- [`KT-16252`](https://youtrack.jetbrains.com/issue/KT-16252) IDL2K: Add ItemArrayLike interface implementation to collection-like classes

## 1.1.1

### IDE
- [`KT-16714`](https://youtrack.jetbrains.com/issue/KT-16714) J2K: Write access is allowed from event dispatch thread only

### Compiler
- [`KT-16801`](https://youtrack.jetbrains.com/issue/KT-16801) Accessors of `@PublishedApi` property gets mangled
- [`KT-16673`](https://youtrack.jetbrains.com/issue/KT-16673) Potentially problematic code causes exception when work with SAM adapters

### Libraries
- [`KT-16557`](https://youtrack.jetbrains.com/issue/KT-16557) Correct `SinceKotlin(1.1)` for all declarations in `kotlin.reflect.full`

## 1.1.1-RC

### IDE
- [`KT-16481`](https://youtrack.jetbrains.com/issue/KT-16481) Kotlin debugger & bytecode fail on select statement blocks (IllegalStateException: More than one package fragment)

### Gradle support
- [`KT-15783`](https://youtrack.jetbrains.com/issue/KT-15783) Gradle builds don't use incremental compilation due to an error: "Could not connect to kotlin daemon"
- [`KT-16434`](https://youtrack.jetbrains.com/issue/KT-16434) Gradle plugin does not compile androidTest sources when Jack is enabled
- [`KT-16546`](https://youtrack.jetbrains.com/issue/KT-16546) Enable incremental compilation in gradle by default

### Compiler
- [`KT-16184`](https://youtrack.jetbrains.com/issue/KT-16184) AbstractMethodError in Kapt3ComponentRegistrar while compiling from IntelliJ using Kotlin 1.1.0
- [`KT-16578`](https://youtrack.jetbrains.com/issue/KT-16578) Fix substitutor for synthetic SAM adapters
- [`KT-16581`](https://youtrack.jetbrains.com/issue/KT-16581) VerifyError when calling default value parameter with jvm-target 1.8
- [`KT-16583`](https://youtrack.jetbrains.com/issue/KT-16583) Cannot access private file-level variables inside a class init within the same file if a secondary constructor is present
- [`KT-16587`](https://youtrack.jetbrains.com/issue/KT-16587) AbstractMethodError: Delegates not generated correctly for private interfaces
- [`KT-16598`](https://youtrack.jetbrains.com/issue/KT-16598) Incorrect error: The feature "bound callable references" is only available since language version 1.1
- [`KT-16621`](https://youtrack.jetbrains.com/issue/KT-16621) Kotlin compiler doesn't report an error if a class implements Annotation interface but doesn't implement annotationType method
- [`KT-16441`](https://youtrack.jetbrains.com/issue/KT-16441) `NoSuchFieldError: $$delegatedProperties` when delegating through `provideDelegate` in companion object

### JavaScript support
- Prohibit function types with receiver as parameter types of external declarations
- Remove extension receiver for function parameters in `jQuery` declarations

## 1.1

### Compiler exceptions
- [`KT-16411`](https://youtrack.jetbrains.com/issue/KT-16411) Exception from compiler when try to inline callable reference to class constructor inside object
- [`KT-16412`](https://youtrack.jetbrains.com/issue/KT-16412) Exception from compiler when try call SAM constructor where argument is callable reference to nested class inside object
- [`KT-16413`](https://youtrack.jetbrains.com/issue/KT-16413) When we create sam adapter for java.util.function.Function we add incorrect null-check for argument

### Standard library
- [`KT-6561`](https://youtrack.jetbrains.com/issue/KT-6561) Drop java.util.Collections package from js stdlib
- `javaClass` extension property is no more deprecated due to migration problems

### IDE
- [`KT-16329`](https://youtrack.jetbrains.com/issue/KT-16329) Inspection "Calls to staic methods in Java interfaces..." always reports warning undependent of jvm-target


## 1.1-RC

### Reflection
- [`KT-16358`](https://youtrack.jetbrains.com/issue/KT-16358) Incompatibility between kotlin-reflect 1.0 and kotlin-stdlib 1.1 fixed

### Compiler

#### Coroutine support
- [`KT-15938`](https://youtrack.jetbrains.com/issue/KT-15938) Changed error message for calling suspend function outside of suspendable context
- [`KT-16092`](https://youtrack.jetbrains.com/issue/KT-16092) Backend crash fixed: "Don't know how to generate outer expression" for destructuring suspend lambda
- [`KT-16093`](https://youtrack.jetbrains.com/issue/KT-16093) Annotations are retained during reading the binary representation of suspend functions
- [`KT-16122`](https://youtrack.jetbrains.com/issue/KT-16122) java.lang.VerifyError fixed in couroutines: (String, null, suspend () -> String)
- [`KT-16124`](https://youtrack.jetbrains.com/issue/KT-16124) Marked as UNSUPPORTED: suspension points in default parameters
- [`KT-16219`](https://youtrack.jetbrains.com/issue/KT-16219) Marked as UNSUPPORTED: suspend get/set, in/!in operators for
- [`KT-16145`](https://youtrack.jetbrains.com/issue/KT-16145) Beta-2 coroutine regression fixed (wrong code generation)

#### Kapt3
- [`KT-15524`](https://youtrack.jetbrains.com/issue/KT-15524) Fix javac error reporting in Kotlin daemon
- [`KT-15721`](https://youtrack.jetbrains.com/issue/KT-15721) JetBrains nullability annotations are now returned from Element.getAnnotationMirrors()
- [`KT-16146`](https://youtrack.jetbrains.com/issue/KT-16146) Fixed work in verbose mode
- [`KT-16153`](https://youtrack.jetbrains.com/issue/KT-16153) Ignore declarations with illegal Java identifiers
- [`KT-16167`](https://youtrack.jetbrains.com/issue/KT-16167) Fixed compilation error with kapt arguments in build.gradle
- [`KT-16170`](https://youtrack.jetbrains.com/issue/KT-16170) Stub generator now adds imports for corrected error types to stubs
- [`KT-16176`](https://youtrack.jetbrains.com/issue/KT-16176) javac's finalCompiler log is now used to determine annotation processing errors

#### Backward compatibility
- [`KT-16017`](https://youtrack.jetbrains.com/issue/KT-16017) More graceful error message for disabled features
- [`KT-16073`](https://youtrack.jetbrains.com/issue/KT-16073) Improved backward compatibility mode with version 1.0 on JDK dependent built-ins
- [`KT-16094`](https://youtrack.jetbrains.com/issue/KT-16094) Compiler considers API availability when compiling language features requiring runtime support
- [`KT-16171`](https://youtrack.jetbrains.com/issue/KT-16171) Fixed regression "Unexpected container error on Kotlin 1.0 project"
- [`KT-16199`](https://youtrack.jetbrains.com/issue/KT-16199) Do not import "kotlin.comparisons.*" by default in language version 1.0 mode

#### Various issues
- [`KT-16225`](https://youtrack.jetbrains.com/issue/KT-16225) enumValues non-reified stub implementation references nonexistent method no more
- [`KT-16291`](https://youtrack.jetbrains.com/issue/KT-16291) Smart cast works now when getting class of instance
- [`KT-16380`](https://youtrack.jetbrains.com/issue/KT-16380) Show warning when running the compiler under Java 6 or 7

### JavaScript backend
- [`KT-16144`](https://youtrack.jetbrains.com/issue/KT-16144) Fixed inlining of functions called through inheritor ("fake" override) from another module
- [`KT-16158`](https://youtrack.jetbrains.com/issue/KT-16158) Error is not reported now when library path contains JAR file without JS metadata, report warning instead
- [`KT-16160`](https://youtrack.jetbrains.com/issue/KT-16160) Companion object dispatch receiver translation fixed

### Standard library
- [`KT-7858`](https://youtrack.jetbrains.com/issue/KT-7858) Add extension function `takeUnless`
- `javaClass` extension property is deprecated, use `instance::class.java` instead
- Massive deprecations are coming in JS standard library in `kotlin.dom` and `kotlin.dom.build` packages

### IDE

#### Configuration issues
- [`KT-15899`](https://youtrack.jetbrains.com/issue/KT-15899) Kotlin facet: language and api version for submodule setup for 1.0 are filled now as 1.0 too
- [`KT-15914`](https://youtrack.jetbrains.com/issue/KT-15914) Kotlin facet works now with multi-selected modules in Project Settings too
- [`KT-15954`](https://youtrack.jetbrains.com/issue/KT-15954) Does not suggest to configure kotlin for the module after each new kt-file creation
- [`KT-16157`](https://youtrack.jetbrains.com/issue/KT-16157) freeCompilerArgs are now imported from Gradle into IDEA
- [`KT-16206`](https://youtrack.jetbrains.com/issue/KT-16206) Idea no more refuses to compile a kotlin project defined as a maven project
- [`KT-16312`](https://youtrack.jetbrains.com/issue/KT-16312) Kotlin facet: import from gradle: don't import options which are set implicitly already
- [`KT-16325`](https://youtrack.jetbrains.com/issue/KT-16325) Kotlin facet: correct configuration after upgrading the IDE plugin
- [`KT-16345`](https://youtrack.jetbrains.com/issue/KT-16345) Kotlin facet: detect JavaScript if the module has language 1.0 `kotlin-js-library` dependency

#### Coroutine support
- [`KT-16109`](https://youtrack.jetbrains.com/issue/KT-16109) Error fixed: The -Xcoroutines can only have one value 
- [`KT-16251`](https://youtrack.jetbrains.com/issue/KT-16251) Fix detection of suspend calls containing extracted parameters

#### Intention actions, inspections and quick-fixes

##### 2017.1 compatibility
- [`KT-15870`](https://youtrack.jetbrains.com/issue/KT-15870) "Package name does not match containing directory" inspection: fixed throwable "AWT events are not allowed inside write action"
- [`KT-15924`](https://youtrack.jetbrains.com/issue/KT-15924) Create Test action: fixed throwable "AWT events are not allowed inside write action"

##### Bug fixes
- [`KT-14831`](https://youtrack.jetbrains.com/issue/KT-14831) Import statement and FQN are not added on converting lambda to reference for typealias
- [`KT-15545`](https://youtrack.jetbrains.com/issue/KT-15545) Inspection "join with assignment" does not change now execution order for properties
- [`KT-15744`](https://youtrack.jetbrains.com/issue/KT-15744) Fix: intention to import `sleep` wrongly suggests `Thread.sleep`
- [`KT-16000`](https://youtrack.jetbrains.com/issue/KT-16000) Inspection "join with assignment" handles initialization with 'this' correctly
- [`KT-16009`](https://youtrack.jetbrains.com/issue/KT-16009) Auto-import for JDK classes in .kts files
- [`KT-16104`](https://youtrack.jetbrains.com/issue/KT-16104) Don't insert modifiers (e.g. suspend) before visibility

#### Completion
- [`KT-16076`](https://youtrack.jetbrains.com/issue/KT-16076) Completion does not insert more FQN kotlin.text.String
- [`KT-16088`](https://youtrack.jetbrains.com/issue/KT-16088) Completion does not insert more FQN for `kotlin` package
- [`KT-16110`](https://youtrack.jetbrains.com/issue/KT-16110) Keyword 'suspend' completion inside generic arguments
- [`KT-16243`](https://youtrack.jetbrains.com/issue/KT-16243) Performance enhanced after variable of type `ArrayList`

#### Various issues
- [`KT-15291`](https://youtrack.jetbrains.com/issue/KT-15291) 'Find usages' now does not report property access as usage of getter method in Java class with parameter
- [`KT-15647`](https://youtrack.jetbrains.com/issue/KT-15647) Exception fixed: KDoc link to member of class from different package and module
- [`KT-16071`](https://youtrack.jetbrains.com/issue/KT-16071) IDEA deadlock fixed: when typing "parse()" in .kt file
- [`KT-16149`](https://youtrack.jetbrains.com/issue/KT-16149) Intellij Idea 2017.1/Android Studio 2.3 beta3 and Kotlin plugin 1.1-beta2 deadlock fixed

### Coroutine libraries
- [`KT-15716`](https://youtrack.jetbrains.com/issue/KT-15716) Introduced startCoroutineUninterceptedOrReturn coroutine intrinsic
- [`KT-15718`](https://youtrack.jetbrains.com/issue/KT-15718) createCoroutine now returns safe continuation
- [`KT-16155`](https://youtrack.jetbrains.com/issue/KT-16155) Introduced createCoroutineUnchecked intrinsic


### Gradle support
- [`KT-15829`](https://youtrack.jetbrains.com/issue/KT-15829) Gradle Kotlin JS plugin: removed false "Duplicate source root:" warning for kotlin files
- [`KT-15902`](https://youtrack.jetbrains.com/issue/KT-15902) JS: gradle task output is now considered as source set output
- [`KT-16174`](https://youtrack.jetbrains.com/issue/KT-16174) Error fixed during IDEA-Gradle synchronization for Kotlin JS
- [`KT-16267`](https://youtrack.jetbrains.com/issue/KT-16267) JS: fixed regression in 1.1-beta2 for multi-module gradle project
- [`KT-16274`](https://youtrack.jetbrains.com/issue/KT-16274) Kotlin JS Gradle unexpected compiler error / absolute path to output file
- [`KT-16322`](https://youtrack.jetbrains.com/issue/KT-16322) Circlet project Gradle import issue fixed

### REPL
- [`KT-15861`](https://youtrack.jetbrains.com/issue/KT-15861) Use windows line separator in kotlin's JSR implementation
- [`KT-16126`](https://youtrack.jetbrains.com/issue/KT-16126) Proper `jvmTarget` for REPL compilation


## 1.1-Beta2

### Language related changes
- [`KT-7897`](https://youtrack.jetbrains.com/issue/KT-7897) Do not require to call enum constructor for each entry if all parameters have default values
- [`KT-8985`](https://youtrack.jetbrains.com/issue/KT-8985) Support T::class.java for T with no non-null upper bound
- [`KT-10711`](https://youtrack.jetbrains.com/issue/KT-10711) Type inference works now on generics for callable references
- [`KT-13130`](https://youtrack.jetbrains.com/issue/KT-13130) Support exhaustive when for sealed trees
- [`KT-15898`](https://youtrack.jetbrains.com/issue/KT-15898) Cannot use type alias to qualify enum entry
- [`KT-16061`](https://youtrack.jetbrains.com/issue/KT-16061) Smart type inference on callable references in 1.1 mode only

### Reflection
- [`KT-8384`](https://youtrack.jetbrains.com/issue/KT-8384) Access to the delegate object for a KProperty

### Compiler

#### Coroutine support
- [`KT-15016`](https://youtrack.jetbrains.com/issue/KT-15016) VerifyError with coroutine: fix processing of uninitialized instances
- [`KT-15527`](https://youtrack.jetbrains.com/issue/KT-15527) Coroutine compile error: wrong code generated for safe qualified suspension points
- [`KT-15552`](https://youtrack.jetbrains.com/issue/KT-15552) Accessor implementation of suspended function produces AbstractMethodError
- [`KT-15715`](https://youtrack.jetbrains.com/issue/KT-15715) Coroutine generate invalid invoke
- [`KT-15820`](https://youtrack.jetbrains.com/issue/KT-15820) Coroutine Internal Error regression with dispatcher + this@
- [`KT-15821`](https://youtrack.jetbrains.com/issue/KT-15821) Coroutine internal error regression: Could not inline method call apply
- [`KT-15824`](https://youtrack.jetbrains.com/issue/KT-15824) Coroutine iterator regression: Object cannot be cast to java.lang.Boolean
- [`KT-15827`](https://youtrack.jetbrains.com/issue/KT-15827) Show Kotlin Bytecode shows wrong bytecode for suspending functions
- [`KT-15907`](https://youtrack.jetbrains.com/issue/KT-15907) Bogus error about platform declaration clash with private suspend functions
- [`KT-15933`](https://youtrack.jetbrains.com/issue/KT-15933) Suspend getValue/setValue/provideDelegate do not work properly
- [`KT-15935`](https://youtrack.jetbrains.com/issue/KT-15935) Private suspend function in file causes UnsupportedOperationException: Context does not have a "this"
- [`KT-15963`](https://youtrack.jetbrains.com/issue/KT-15963) Coroutine: runtime error if returned object "equals" does not like comparison to SUSPENDED_MARKER
- [`KT-16068`](https://youtrack.jetbrains.com/issue/KT-16068) Prohibit inline lambda parameters of suspend function type

#### Diagnostics
- [`KT-1560`](https://youtrack.jetbrains.com/issue/KT-1560) Report diagnostic for a declaration of extension function which will be always shadowed by member function
- [`KT-12846`](https://youtrack.jetbrains.com/issue/KT-12846) Forbid vararg of Nothing
- [`KT-13227`](https://youtrack.jetbrains.com/issue/KT-13227) NO_ELSE_IN_WHEN in when by sealed class instance if is-check for base sealed class is used
- [`KT-13355`](https://youtrack.jetbrains.com/issue/KT-13355) Type mismatch on inheritance is not reported on abstract class
- [`KT-15010`](https://youtrack.jetbrains.com/issue/KT-15010) Missing error on an usage of non-constant property in annotation default argument 
- [`KT-15201`](https://youtrack.jetbrains.com/issue/KT-15201) Compiler is complaining about when statement without null condition even if null is checked before.
- [`KT-15736`](https://youtrack.jetbrains.com/issue/KT-15736) Report an error on type alias expanded to a nullable type on LHS of a class literal
- [`KT-15740`](https://youtrack.jetbrains.com/issue/KT-15740) Report error on expression of a nullable type on LHS of a class literal
- [`KT-15844`](https://youtrack.jetbrains.com/issue/KT-15844) Do not allow to access primary constructor parameters from property with custom getter
- [`KT-15878`](https://youtrack.jetbrains.com/issue/KT-15878) Extension shadowed by member should not be reported for infix/operator extensions when member is non-infix/operator
- [`KT-16010`](https://youtrack.jetbrains.com/issue/KT-16010) Do not highlight lambda parameters as unused in 1.0 compatibility mode

#### Kapt
- [`KT-15675`](https://youtrack.jetbrains.com/issue/KT-15675) Kapt3 does not generate classes annotated with AutoValue
- [`KT-15697`](https://youtrack.jetbrains.com/issue/KT-15697) If an annotation with AnnotationTarget.PROPERTY is tagged on a Kotlin property, it breaks annotation processing
- [`KT-15803`](https://youtrack.jetbrains.com/issue/KT-15803) Kotlin 1.0.6 broke Dagger
- [`KT-15814`](https://youtrack.jetbrains.com/issue/KT-15814) Regression: Kapt is not working in 1.0.6 / 1.1-M04 / 1.1-Beta
- [`KT-15838`](https://youtrack.jetbrains.com/issue/KT-15838) kapt3 1.1-beta: KaptError: Java file parsing error
- [`KT-15841`](https://youtrack.jetbrains.com/issue/KT-15841) 1.1-Beta + kapt3 fails to build the project with StackOverflowError
- [`KT-15915`](https://youtrack.jetbrains.com/issue/KT-15915) Kapt: Kotlin class target directory is cleared before compilation (and after kapt task)
- [`KT-16006`](https://youtrack.jetbrains.com/issue/KT-16006) Cannot determine if type is an error type during annotation processing

#### Exceptions / Errors
- [`KT-8264`](https://youtrack.jetbrains.com/issue/KT-8264) Internal compiler error: java.lang.ArithmeticException: BigInteger: modulus not positive
- [`KT-14547`](https://youtrack.jetbrains.com/issue/KT-14547) NoSuchElementException when compiling callable reference without stdlib in the classpath
- [`KT-14966`](https://youtrack.jetbrains.com/issue/KT-14966) Regression: VerifyError on access super implementation from delegate 
- [`KT-15017`](https://youtrack.jetbrains.com/issue/KT-15017) Throwing exception in the end of inline suspend-functions lead to internal compiler error
- [`KT-15439`](https://youtrack.jetbrains.com/issue/KT-15439) Resolved call is not completed for generic callable reference in if-expression
- [`KT-15500`](https://youtrack.jetbrains.com/issue/KT-15500) Exception passing freeCompilerArgs to gradle plugin
- [`KT-15646`](https://youtrack.jetbrains.com/issue/KT-15646) InconsistentDebugInfoException when stepping over `throw`
- [`KT-15726`](https://youtrack.jetbrains.com/issue/KT-15726) Kotlin compiles invalid bytecode for nested try-catch with return
- [`KT-15743`](https://youtrack.jetbrains.com/issue/KT-15743) Overloaded Kotlin extensions annotates wrong parameters in java
- [`KT-15868`](https://youtrack.jetbrains.com/issue/KT-15868) NPE when comparing nullable doubles for equality
- [`KT-15995`](https://youtrack.jetbrains.com/issue/KT-15995) Can't build project with DataBinding using Kotlin 1.1: incompatible language version
- [`KT-16047`](https://youtrack.jetbrains.com/issue/KT-16047) Internal Error: org.jetbrains.kotlin.util.KotlinFrontEndException while analyzing expression

#### Type inference issues
- [`KT-10268`](https://youtrack.jetbrains.com/issue/KT-10268) Wrong type inference related to captured types
- [`KT-11259`](https://youtrack.jetbrains.com/issue/KT-11259) Wrong type inference for Java 8 Stream.collect.
- [`KT-12802`](https://youtrack.jetbrains.com/issue/KT-12802) Type inference failed when irrelevant method reference is used
- [`KT-12964`](https://youtrack.jetbrains.com/issue/KT-12964) Support type inference for callable references from parameter types of an expected function type

#### Smart cast issues
- [`KT-13468`](https://youtrack.jetbrains.com/issue/KT-13468) Smart cast is broken after assignment of 'if' expression
- [`KT-14350`](https://youtrack.jetbrains.com/issue/KT-14350) Make smart-cast work as it does in 1.0 when -language-version 1.0 is used
- [`KT-14597`](https://youtrack.jetbrains.com/issue/KT-14597) When over smartcast enum is broken and breaks all other "when"
- [`KT-15792`](https://youtrack.jetbrains.com/issue/KT-15792) Wrong smart cast after y = x, x = null, y != null sequence

#### Various issues
- [`KT-15236`](https://youtrack.jetbrains.com/issue/KT-15236) False positive: Null can not be a value of a non-null type
- [`KT-15677`](https://youtrack.jetbrains.com/issue/KT-15677) Modifiers and annotations are lost on a (nullable) parenthesized type
- [`KT-15707`](https://youtrack.jetbrains.com/issue/KT-15707) IDEA unable to parallel compile different projects
- [`KT-15734`](https://youtrack.jetbrains.com/issue/KT-15734) Nullability is lost during expansion of a type alias
- [`KT-15748`](https://youtrack.jetbrains.com/issue/KT-15748) Type alias constructor return type should have a corresponding abbreviation
- [`KT-15775`](https://youtrack.jetbrains.com/issue/KT-15775) Annotations are lost on value parameter types of a function type
- [`KT-15780`](https://youtrack.jetbrains.com/issue/KT-15780) Treat Map.getOrDefault overrides in Java the same way as in 1.0.x compiler with language version 1.0
- [`KT-15794`](https://youtrack.jetbrains.com/issue/KT-15794) Refine backward compatibility mode for additional built-ins members from JDK
- [`KT-15848`](https://youtrack.jetbrains.com/issue/KT-15848) Implement additional annotation processing in the `KotlinScriptDefinitionFromAnnotatedTemplate` for SamWithReceiver plugin
- [`KT-15875`](https://youtrack.jetbrains.com/issue/KT-15875) Operation has lead to overflow for 'mod' with negative first operand
- [`KT-15945`](https://youtrack.jetbrains.com/issue/KT-15945) Feature Request: Andrey Breslav to grow a beard.

### JavaScript backend

#### Coroutine support
- [`KT-15834`](https://youtrack.jetbrains.com/issue/KT-15834) JS: Local delegate in suspend function
- [`KT-15892`](https://youtrack.jetbrains.com/issue/KT-15892) JS: safe call of suspend functions causes compiler to crash

#### Diagnostics
- [`KT-14668`](https://youtrack.jetbrains.com/issue/KT-14668) Do not allow declarations in 'kotlin' package or subpackages in JS
- [`KT-15184`](https://youtrack.jetbrains.com/issue/KT-15184) JS: prohibit `..` operation with `dynamic` on left-hand side
- [`KT-15253`](https://youtrack.jetbrains.com/issue/KT-15253) JS: no error when use class external class with JsModule in type context when compiling with plain module kind
- [`KT-15283`](https://youtrack.jetbrains.com/issue/KT-15283) JS: additional restrictions on dynamic
- [`KT-15961`](https://youtrack.jetbrains.com/issue/KT-15961) Could not implement external open class with function with optional parameter

#### Language feature support
- [`KT-14035`](https://youtrack.jetbrains.com/issue/KT-14035) JS: support implementing CharSequence
- [`KT-14036`](https://youtrack.jetbrains.com/issue/KT-14036) JS: use Int16 for Char when it possible and box to our Char otherwise
- [`KT-14097`](https://youtrack.jetbrains.com/issue/KT-14097) Wrong code generated for enum entry initialization using non-primary no-argument constructor
- [`KT-15312`](https://youtrack.jetbrains.com/issue/KT-15312) JS: map kotlin.Throwable to JS Error
- [`KT-15765`](https://youtrack.jetbrains.com/issue/KT-15765) JS: support callable references on built-in and intrinsic functions and properties
- [`KT-15900`](https://youtrack.jetbrains.com/issue/KT-15900) JS: Support enum entry with empty initializer with vararg constructor

#### Standard library support
- [`KT-4141`](https://youtrack.jetbrains.com/issue/KT-4141) JS: wrong return type for Date::getTime
- [`KT-4497`](https://youtrack.jetbrains.com/issue/KT-4497) JS: add String.toInt, String.toDouble etc extension functions, `parseInt` and `parseFloat` are deprecated in favor of these new ones
- [`KT-15940`](https://youtrack.jetbrains.com/issue/KT-15940) JS: rename all js standard library artifacts (both in maven and in compiler distribution) to `kotlin-stdlib-js.jar`
- Add `Promise<T>` external declaration to the standard library
- Types like `Date`, `Math`, `Console`, `Promise`, `RegExp`, `Json` require explicit import from `kotlin.js` package

#### External declarations
- [`KT-15144`](https://youtrack.jetbrains.com/issue/KT-15144) JS: rename `noImpl` to `definedExternally`
- [`KT-15306`](https://youtrack.jetbrains.com/issue/KT-15306) JS: allow to use `definedExternally` only inside a body of external declarations
- [`KT-15336`](https://youtrack.jetbrains.com/issue/KT-15336) JS: allow to inherit external classes from kotlin.Throwable
- [`KT-15905`](https://youtrack.jetbrains.com/issue/KT-15905) JS: add a way to control qualifier for external declarations inside file
- Deprecate `@native` annotation, to be removed in 1.1 release.

#### Exceptions / Errors
- [`KT-10894`](https://youtrack.jetbrains.com/issue/KT-10894) Infinite indexing at projects with JS modules
- [`KT-14124`](https://youtrack.jetbrains.com/issue/KT-14124) AssertionError: strings file not found on K2JS serialized data
 
#### Various issues
- [`KT-8211`](https://youtrack.jetbrains.com/issue/KT-8211) JS: generate dummy init for properties w/o initializer to avoid to have different hidden classes for different instances
- [`KT-12712`](https://youtrack.jetbrains.com/issue/KT-12712) JS: Json should not be a class
- [`KT-13312`](https://youtrack.jetbrains.com/issue/KT-13312) JS: can't use extension lambda where expected lambda and vice versa
- [`KT-13632`](https://youtrack.jetbrains.com/issue/KT-13632) Add template kotlin js project under gradle in "New Project" window
- [`KT-15278`](https://youtrack.jetbrains.com/issue/KT-15278) JS: don't treat property access through dynamic as side effect free
- [`KT-15285`](https://youtrack.jetbrains.com/issue/KT-15285) JS: take into account as many characteristics from the signature as possible when mangling
- [`KT-15678`](https://youtrack.jetbrains.com/issue/KT-15678) JS: Generated local variable named 'element' clashes with actual local variable named 'element'
- [`KT-15755`](https://youtrack.jetbrains.com/issue/KT-15755) JS compiler produces a lot of empty kotlin_file_table files for irrelevant packages
- [`KT-15770`](https://youtrack.jetbrains.com/issue/KT-15770) Name clash between recursive local functions with same name
- [`KT-15797`](https://youtrack.jetbrains.com/issue/KT-15797) JS: wrong code for accessing nested class inside js module
- [`KT-15863`](https://youtrack.jetbrains.com/issue/KT-15863) JS: Extension function reference shifts parameters loosing the receiver
- [`KT-16049`](https://youtrack.jetbrains.com/issue/KT-16049) JS: drop "-kjsm" command line option, merge the logic into "-meta-info"
- [`KT-16083`](https://youtrack.jetbrains.com/issue/KT-16083) JS: rename "-library-files" argument to "-libraries" and change separator from comma to system file separator

### Standard Library
- [`KT-13353`](https://youtrack.jetbrains.com/issue/KT-13353) Add Map.minus(key) and Map.minus(keys) 
- [`KT-13826`](https://youtrack.jetbrains.com/issue/KT-13826) Add parameter names in function types used in the standard library
- [`KT-14279`](https://youtrack.jetbrains.com/issue/KT-14279) Make String.matches(Regex) and Regex.matches(String) infix
- [`KT-15399`](https://youtrack.jetbrains.com/issue/KT-15399) Iterable.average() now returns NaN for an empty collection
- [`KT-15975`](https://youtrack.jetbrains.com/issue/KT-15975) Move coroutine-related runtime parts to `kotlin.coroutines.experimental` package
- [`KT-16030`](https://youtrack.jetbrains.com/issue/KT-16030) Move bitwise operations on Byte and Short to `kotlin.experimental` package
- [`KT-16026`](https://youtrack.jetbrains.com/issue/KT-16026) Classes compiled in 1.1 in 1.0-compatibility mode may contain references to CloseableKt class from 1.1

### IDE

#### Configuration issues
- [`KT-15621`](https://youtrack.jetbrains.com/issue/KT-15621) Copy compiler options values from project settings on creating a kotlin facet for Kotlin (JVM) project
- [`KT-15623`](https://youtrack.jetbrains.com/issue/KT-15623) Copy compiler options values from project settings on creating a kotlin facet for Kotlin (JavaScript) project
- [`KT-15624`](https://youtrack.jetbrains.com/issue/KT-15624) Set option "Use project settings" in newly created Kotlin facet
- [`KT-15712`](https://youtrack.jetbrains.com/issue/KT-15712) Configuring a project with Maven or Gradle should automatically use stdlib-jre7 or stdlib-jre8 instead of standard stdlib
- [`KT-15772`](https://youtrack.jetbrains.com/issue/KT-15772) Facet does not pick up api version from maven
- [`KT-15819`](https://youtrack.jetbrains.com/issue/KT-15819) It would be nice if compileKotlin options are imported into Kotlin facet from gradle/maven
- [`KT-16015`](https://youtrack.jetbrains.com/issue/KT-16015) Prohibit api-version > language-version in Facet and Project Settings

#### Coroutine support
- [`KT-14704`](https://youtrack.jetbrains.com/issue/KT-14704) Extract Method should work in coroutines
- [`KT-15955`](https://youtrack.jetbrains.com/issue/KT-15955) Quick-fix to enable coroutines through Gradle project configuration
- [`KT-16018`](https://youtrack.jetbrains.com/issue/KT-16018) Hide coroutines intrinsics from import and completion
- [`KT-16075`](https://youtrack.jetbrains.com/issue/KT-16075) Error:Kotlin: The -Xcoroutines can only have one value

#### Backward compatibility issues
- [`KT-15134`](https://youtrack.jetbrains.com/issue/KT-15134) Do not suggest using destructuring lambda if this will result in "available since 1.1" error
- [`KT-15918`](https://youtrack.jetbrains.com/issue/KT-15918) Quick fix "Set module language level to 1.1" should also set API version to 1.1
- [`KT-15969`](https://youtrack.jetbrains.com/issue/KT-15969) Replace operator with function should use either rem or mod for % depending on language version
- [`KT-15978`](https://youtrack.jetbrains.com/issue/KT-15978) Type alias from Kotlin 1.1 are suggested in completion even if language level is set to 1.0 in settings
- [`KT-15979`](https://youtrack.jetbrains.com/issue/KT-15979) Usages of type aliases are not shown as errors in editor if language version is set to 1.0
- [`KT-16019`](https://youtrack.jetbrains.com/issue/KT-16019) Do not suggest renaming to underscore in 1.0 compatibility mode
- [`KT-16036`](https://youtrack.jetbrains.com/issue/KT-16036) "Create type alias from usage" quick-fix should not be suggested at language level 1.0

#### Intention actions, inspections and quick-fixes

##### New features
- [`KT-9912`](https://youtrack.jetbrains.com/issue/KT-9912) Merge ifs intention
- [`KT-13427`](https://youtrack.jetbrains.com/issue/KT-13427) "Specify type explicitly" should support type aliases
- [`KT-15066`](https://youtrack.jetbrains.com/issue/KT-15066) "Make private/.." intention on type aliases
- [`KT-15709`](https://youtrack.jetbrains.com/issue/KT-15709) Add inspection for private primary constructors in data classes as they are accessible via the copy method
- [`KT-15738`](https://youtrack.jetbrains.com/issue/KT-15738) Intention to add `suspend` modifier to functional type
- [`KT-15800`](https://youtrack.jetbrains.com/issue/KT-15800) Quick-fix to convert a function to suspending on error when calling suspension inside

##### Bug fixes
- [`KT-13710`](https://youtrack.jetbrains.com/issue/KT-13710) Import intention action should not appear in import list
- [`KT-14680`](https://youtrack.jetbrains.com/issue/KT-14680) import statement to type alias reported as unused when using only TA constructor
- [`KT-14856`](https://youtrack.jetbrains.com/issue/KT-14856) TextView internationalisation intention does not report the problem
- [`KT-14993`](https://youtrack.jetbrains.com/issue/KT-14993) Keep destructuring declaration parameter on inspection "Remove explicit lambda parameter types"
- [`KT-14994`](https://youtrack.jetbrains.com/issue/KT-14994) PsiInvalidElementAccessException and incorrect generation on inspection "Specify type explicitly" on destructuring parameter
- [`KT-15162`](https://youtrack.jetbrains.com/issue/KT-15162) "Remove explicit lambda parameter types" intentions fails with destructuring declaration with KNPE at KtPsiFactory.createLambdaParameterList()
- [`KT-15311`](https://youtrack.jetbrains.com/issue/KT-15311) "Add Import" intention generates incorrect code
- [`KT-15406`](https://youtrack.jetbrains.com/issue/KT-15406) Convert to secondary constructor for enum class should put new members after enum values
- [`KT-15553`](https://youtrack.jetbrains.com/issue/KT-15553) Copy concatenation text to clipboard with Kotlin and string interpolation does not work
- [`KT-15670`](https://youtrack.jetbrains.com/issue/KT-15670) 'Convert to lambda' quick fix in IDEA leaves single-line comment and } gets commented out
- [`KT-15873`](https://youtrack.jetbrains.com/issue/KT-15873) Alt+Enter menu isn't shown for deprecated mod function
- [`KT-15874`](https://youtrack.jetbrains.com/issue/KT-15874) Replace operator with function call replaces % with deprecated mod
- [`KT-15884`](https://youtrack.jetbrains.com/issue/KT-15884) False positive "Redundant .let call"
- [`KT-16072`](https://youtrack.jetbrains.com/issue/KT-16072) Intentions to convert suspend lambdas to callable references should not be shown

#### Android support
- [`KT-13275`](https://youtrack.jetbrains.com/issue/KT-13275) Kotlin Gradle plugin for Android does not work when jackOptions enabled
- [`KT-15150`](https://youtrack.jetbrains.com/issue/KT-15150) Android: Add quick-fix to generate View constructor convention
- [`KT-15282`](https://youtrack.jetbrains.com/issue/KT-15282) Issues debugging crossinline Android code

#### KDoc
- [`KT-14710`](https://youtrack.jetbrains.com/issue/KT-14710) Sample references are not resolved in IDE
- [`KT-15796`](https://youtrack.jetbrains.com/issue/KT-15796) Import of class referenced only in KDoc not preserved after copy-paste

#### Various issues
- [`KT-9011`](https://youtrack.jetbrains.com/issue/KT-9011) Shift+Enter should insert curly braces when invoked after class declaration
- [`KT-11308`](https://youtrack.jetbrains.com/issue/KT-11308) Hide kotlin.jvm.internal package contents from completion and auto-import
- [`KT-14252`](https://youtrack.jetbrains.com/issue/KT-14252) Completion could suggest constructors available via type aliases
- [`KT-14722`](https://youtrack.jetbrains.com/issue/KT-14722) Completion list isn't filled up for type alias to object
- [`KT-14767`](https://youtrack.jetbrains.com/issue/KT-14767) Type alias to annotation class should appear in the completion list
- [`KT-14859`](https://youtrack.jetbrains.com/issue/KT-14859) "Parameter Info" sometimes does not work properly inside lambda
- [`KT-15032`](https://youtrack.jetbrains.com/issue/KT-15032) Injected fragment: descriptor was not found for declaration: FUN
- [`KT-15153`](https://youtrack.jetbrains.com/issue/KT-15153) Support typeAlias extensions in completion and add import
- [`KT-15786`](https://youtrack.jetbrains.com/issue/KT-15786) NoSuchMethodError: com.intellij.util.containers.UtilKt.isNullOrEmpty
- [`KT-15883`](https://youtrack.jetbrains.com/issue/KT-15883) Generating equals() and hashCode(): hashCode does not correctly honor variable names with back ticks
- [`KT-15911`](https://youtrack.jetbrains.com/issue/KT-15911) Kotlin REPL will not launch: "Neither main class nor JAR path is specified"

### J2K
- [`KT-15789`](https://youtrack.jetbrains.com/issue/KT-15789) Kotlin plugin incorrectly converts for-loops from Java to Kotlin

### Gradle support
- [`KT-14830`](https://youtrack.jetbrains.com/issue/KT-14830) Kotlin Gradle plugin configuration should not add 'kotlin' source directory by default
- [`KT-15279`](https://youtrack.jetbrains.com/issue/KT-15279) 'Kotlin not configured message' should not be displayed while gradle sync is in progress
- [`KT-15812`](https://youtrack.jetbrains.com/issue/KT-15812) Create Kotlin facet on importing gradle project with unchecked option Create separate module per source set
- [`KT-15837`](https://youtrack.jetbrains.com/issue/KT-15837) Gradle compiler attempts to connect to daemon on address derived from DNS lookup
- [`KT-15909`](https://youtrack.jetbrains.com/issue/KT-15909) Copy Gradle compiler options to facets in Intellij/AS
- [`KT-15929`](https://youtrack.jetbrains.com/issue/KT-15929) Gradle project imported with wrong 'target platform'

### Other issues
- [`KT-15450`](https://youtrack.jetbrains.com/issue/KT-15450) JSR 223 - support eval with bindings


## 1.1.0-Beta

### Reflection
- [`KT-15540`](https://youtrack.jetbrains.com/issue/KT-15540) findAnnotation returns T?, but it throws NoSuchElementException when there is no matching annotation
- Reflection API in `kotlin-reflect` library is moved to `kotlin.reflect.full` package, declarations in the package `kotlin.reflect` are left deprecated. Please migrate according to the hints provided.

### Compiler

#### Coroutine support
- [`KT-15379`](https://youtrack.jetbrains.com/issue/KT-15379) Allow invoke on instances of suspend function type inside suspend function
- [`KT-15380`](https://youtrack.jetbrains.com/issue/KT-15380) Support suspend function type with value parameters
- [`KT-15391`](https://youtrack.jetbrains.com/issue/KT-15391) Prohibit suspend function type in supertype list
- [`KT-15392`](https://youtrack.jetbrains.com/issue/KT-15392) Prohibit local suspending function
- [`KT-15413`](https://youtrack.jetbrains.com/issue/KT-15413) Override regular functions with suspending ones and vice versa
- [`KT-15657`](https://youtrack.jetbrains.com/issue/KT-15657) Refine dispatchResume convention
- [`KT-15662`](https://youtrack.jetbrains.com/issue/KT-15662) Prohibit callable references to suspend functions

#### Diagnostics
- [`KT-9630`](https://youtrack.jetbrains.com/issue/KT-9630) Cannot create extension function on intersection of types
- [`KT-11398`](https://youtrack.jetbrains.com/issue/KT-11398) Possible false positive for INACCESSIBLE_TYPE
- [`KT-13593`](https://youtrack.jetbrains.com/issue/KT-13593) Do not report USELESS_ELVIS_RIGHT_IS_NULL for left argument with platform type
- [`KT-13859`](https://youtrack.jetbrains.com/issue/KT-13859) Wrong error about using unrepeatable annotation when mix implicit and explicit targets
- [`KT-14179`](https://youtrack.jetbrains.com/issue/KT-14179) Prohibit to use enum entry as type parameter
- [`KT-15097`](https://youtrack.jetbrains.com/issue/KT-15097) Inherited platform declarations clash: regression under 1.1 when indirectly inheriting from java.util.Map
- [`KT-15287`](https://youtrack.jetbrains.com/issue/KT-15287) Kotlin runtime 1.1 and runtime 1.0.x:  Overload resolution ambiguity
- [`KT-15334`](https://youtrack.jetbrains.com/issue/KT-15334) Incorrect "val cannot be reassigned" inside do-while
- [`KT-15410`](https://youtrack.jetbrains.com/issue/KT-15410) "Protected function call from public-API inline function" for protected constructor call

#### Kapt3
- [`KT-15145`](https://youtrack.jetbrains.com/issue/KT-15145) Kapt3: Doesn't compile with multiple errors 
- [`KT-15232`](https://youtrack.jetbrains.com/issue/KT-15232) Kapt3 crash due to java codepage
- [`KT-15359`](https://youtrack.jetbrains.com/issue/KT-15359) Kapt3 exception while annotation processing (DataBindings AS2.3-beta1)
- [`KT-15375`](https://youtrack.jetbrains.com/issue/KT-15375) Kapt3 can't find ${env.JDK_18}/lib/tools.jar
- [`KT-15381`](https://youtrack.jetbrains.com/issue/KT-15381) Unresolved references: R with Kapt3
- [`KT-15397`](https://youtrack.jetbrains.com/issue/KT-15397) Kapt3 doesn't work with databinding
- [`KT-15409`](https://youtrack.jetbrains.com/issue/KT-15409) Kapt3 Cannot find the getter for attribute 'android:text' with value type java.lang.String on android.widget.EditText.
- [`KT-15421`](https://youtrack.jetbrains.com/issue/KT-15421) Kapt3: Substitute types from Psi instead of writing NonExistentClass for generated type names
- [`KT-15459`](https://youtrack.jetbrains.com/issue/KT-15459) Kapt3 doesn't generate code in test module
- [`KT-15524`](https://youtrack.jetbrains.com/issue/KT-15524) Kapt3 - Error messages should display associated element information (if available)
- [`KT-15713`](https://youtrack.jetbrains.com/issue/KT-15713) Kapt3: circular dependencies between Gradke tasks

#### Exceptions / Errors
- [`KT-11401`](https://youtrack.jetbrains.com/issue/KT-11401) Error type encountered for implicit invoke with function literal argument
- [`KT-12044`](https://youtrack.jetbrains.com/issue/KT-12044) Assertion "Rewrite at slice LEXICAL_SCOPE" for 'if' with property references 
- [`KT-14011`](https://youtrack.jetbrains.com/issue/KT-14011) Compiler crash when inlining: lateinit property allRecapturedParameters has not been initialized
- [`KT-14868`](https://youtrack.jetbrains.com/issue/KT-14868) CCE in runtime while converting Number to Char
- [`KT-15364`](https://youtrack.jetbrains.com/issue/KT-15364) VerifyError: Bad type on operand stack on ObserverIterator.hasNext
- [`KT-15373`](https://youtrack.jetbrains.com/issue/KT-15373) Internal error when running TestNG test
- [`KT-15437`](https://youtrack.jetbrains.com/issue/KT-15437) VerifyError: Bad local variable type on simplest provideDelegate
- [`KT-15446`](https://youtrack.jetbrains.com/issue/KT-15446) Property reference on an instance of subclass causes java.lang.VerifyError
- [`KT-15447`](https://youtrack.jetbrains.com/issue/KT-15447) Compiler backend error: "Don't know how to generate outer expression for class"
- [`KT-15449`](https://youtrack.jetbrains.com/issue/KT-15449) Back-end (JVM) Internal error: Couldn't inline method call
- [`KT-15464`](https://youtrack.jetbrains.com/issue/KT-15464) Regression: "Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:"
- [`KT-15575`](https://youtrack.jetbrains.com/issue/KT-15575) VerifyError: Bad type on operand stack

#### Various issues
- [`KT-11962`](https://youtrack.jetbrains.com/issue/KT-11962) Super call with default parameters check is generated for top-level function
- [`KT-11969`](https://youtrack.jetbrains.com/issue/KT-11969) ProGuard issue with private interface methods
- [`KT-12795`](https://youtrack.jetbrains.com/issue/KT-12795) Write information about sealed class inheritors to metadata
- [`KT-13718`](https://youtrack.jetbrains.com/issue/KT-13718) ClassFormatError on aspectj instrumentation
- [`KT-14162`](https://youtrack.jetbrains.com/issue/KT-14162) Support @InlineOnly on inline properties
- [`KT-14705`](https://youtrack.jetbrains.com/issue/KT-14705) Inconsistent smart casts on when enum subject
- [`KT-14917`](https://youtrack.jetbrains.com/issue/KT-14917) No way to pass additional java command line options to kontlinc on Windows
- [`KT-15112`](https://youtrack.jetbrains.com/issue/KT-15112) Compiler hangs on nested lock compilation
- [`KT-15225`](https://youtrack.jetbrains.com/issue/KT-15225) Scripts: generate classes with names that are valid Java identifiers
- [`KT-15411`](https://youtrack.jetbrains.com/issue/KT-15411) Unnecessary CHECKCAST bytecode when dealing with null
- [`KT-15473`](https://youtrack.jetbrains.com/issue/KT-15473) Invalid KFunction byte code signature for callable references
- [`KT-15582`](https://youtrack.jetbrains.com/issue/KT-15582) Generated bytecode is sometimes incompatible with Java 9
- [`KT-15584`](https://youtrack.jetbrains.com/issue/KT-15584) Do not mark class files compiled with a release language version as pre-release
- [`KT-15589`](https://youtrack.jetbrains.com/issue/KT-15589) Upper bound for T in KClass<T> can be implicitly violated using generic function
- [`KT-15631`](https://youtrack.jetbrains.com/issue/KT-15631) Compiler hang in MethodAnalyzer.analyze() fixed 

### JavaScript backend

#### Coroutine support
- [`KT-15362`](https://youtrack.jetbrains.com/issue/KT-15362) JS: Regex doesn't work (properly) in coroutine
- [`KT-15366`](https://youtrack.jetbrains.com/issue/KT-15366) JS: error when calling inline function with optional parameters from another module inside coroutine lambda
- [`KT-15367`](https://youtrack.jetbrains.com/issue/KT-15367) JS: `for` against iterator with suspend `next` and `hasNext` functions does not work
- [`KT-15400`](https://youtrack.jetbrains.com/issue/KT-15400) suspendCoroutine is missing in JS BE
- [`KT-15597`](https://youtrack.jetbrains.com/issue/KT-15597) Support non-tail suspend calls inside named suspend functions 
- [`KT-15625`](https://youtrack.jetbrains.com/issue/KT-15625) JS: return statement without value surrounded by `try..finally` in suspend lambda causes compiler error
- [`KT-15698`](https://youtrack.jetbrains.com/issue/KT-15698) Move coroutine intrinsics to kotlin.coroutine.intrinsics package

#### Diagnostics
- [`KT-14577`](https://youtrack.jetbrains.com/issue/KT-14577) JS: do not report declaration clash when common redeclaration diagnostic applies
- [`KT-15136`](https://youtrack.jetbrains.com/issue/KT-15136) JS: prohibit inheritance from kotlin Function{N} interfaces

#### Language features support
- [`KT-12194`](https://youtrack.jetbrains.com/issue/KT-12194) Exhaustiveness check isn't generated for when expressions in JS at all
- [`KT-15590`](https://youtrack.jetbrains.com/issue/KT-15590) Support increment on inlined properties
 
#### Native / external
- [`KT-8081`](https://youtrack.jetbrains.com/issue/KT-8081) JS: native inherited class shouldn't require super or primary constructor call
- [`KT-13892`](https://youtrack.jetbrains.com/issue/KT-13892) JS: restrictions for native (external) functions and properties
- [`KT-15307`](https://youtrack.jetbrains.com/issue/KT-15307) JS: prohibit inline members inside external declarations
- [`KT-15308`](https://youtrack.jetbrains.com/issue/KT-15308) JS: prohibit non-abstract members inside external interfaces except nullable properties (with accessors)

#### Exceptions / Errors
- [`KT-7302`](https://youtrack.jetbrains.com/issue/KT-7302) KotlinJS - Trait with optional parameter causes compilation error
- [`KT-15325`](https://youtrack.jetbrains.com/issue/KT-15325) JS: ReferenceError: $receiver is not defined
- [`KT-15357`](https://youtrack.jetbrains.com/issue/KT-15357) JS: `when` expression in primary-from-secondary constructor call
- [`KT-15435`](https://youtrack.jetbrains.com/issue/KT-15435) Call to 'synchronize' crashes JS backend
- [`KT-15513`](https://youtrack.jetbrains.com/issue/KT-15513) JS: empty do..while loop crashes compiler

#### Various issues
- [`KT-4160`](https://youtrack.jetbrains.com/issue/KT-4160) JS: compiler produces wrong code for escaped variable names with characters which Illegal in JS (e.g. spaces)
- [`KT-7004`](https://youtrack.jetbrains.com/issue/KT-7004) JS: functions named `call` not inlined
- [`KT-7588`](https://youtrack.jetbrains.com/issue/KT-7588) JS: operators are not inlined
- [`KT-7733`](https://youtrack.jetbrains.com/issue/KT-7733) JS: Provide overflow behavior for integer arithmetic operations
- [`KT-8413`](https://youtrack.jetbrains.com/issue/KT-8413) JS: generated wrong code for some float constants
- [`KT-12598`](https://youtrack.jetbrains.com/issue/KT-12598) JS: comparisons for Enums always translates using strong operator
- [`KT-13523`](https://youtrack.jetbrains.com/issue/KT-13523) Augmented assignment with array access in LHS is translated incorrectly
- [`KT-13888`](https://youtrack.jetbrains.com/issue/KT-13888) JS: change how functions optional parameters get translated
- [`KT-15260`](https://youtrack.jetbrains.com/issue/KT-15260) JS: don't import module more than once
- [`KT-15475`](https://youtrack.jetbrains.com/issue/KT-15475) JS compiler deletes internal function name in js("") text block
- [`KT-15506`](https://youtrack.jetbrains.com/issue/KT-15506) JS: invalid evaluation order when passing arguments to function by name
- [`KT-15512`](https://youtrack.jetbrains.com/issue/KT-15512) JS: wrong result when use break/throw/return in || and && operators
- [`KT-15569`](https://youtrack.jetbrains.com/issue/KT-15569) js: Wrong code generated when calling an overloaded operator function on an inherited property

### Standard Library
- [`KEEP-23`](https://github.com/Kotlin/KEEP/blob/master/proposals/stdlib/group-and-fold.md) Operation to group by key and fold each group simultaneously
- [`KT-15774`](https://youtrack.jetbrains.com/issue/KT-15774) `buildSequence` and `buildIterator` functions with `yield` and `yieldAll` based on coroutines
- [`KT-6903`](https://youtrack.jetbrains.com/issue/KT-6903) Add `also` extension, which is like `apply`, but with `it` instead of `this` inside lambda.
- [`KT-7858`](https://youtrack.jetbrains.com/issue/KT-7858) Add extension function `takeIf` to match a value against predicate and return null when it does not match
- [`KT-11851`](https://youtrack.jetbrains.com/issue/KT-11851) Provide extension `Map.getValue(key: K): V` which throws or returns default when key is not found
- [`KT-7417`](https://youtrack.jetbrains.com/issue/KT-7417) Add min, max on two numbers to standard library
- [`KT-13898`](https://youtrack.jetbrains.com/issue/KT-13898) Allow to implement `toArray` in collections as protected and provide protected toArray in AbstractCollection.
- [`KT-14935`](https://youtrack.jetbrains.com/issue/KT-14935) Array-like list instantiation functions: `List(count) { init }` and `MutableList(count) { init }` 
- [`KT-15630`](https://youtrack.jetbrains.com/issue/KT-15630) Overloads of mutableListOf, mutableSetOf, mutableMapOf without parameters
- [`KT-15557`](https://youtrack.jetbrains.com/issue/KT-15557) Iterable<T>.joinTo loses information about each element by calling toString on them by default
- [`KT-15477`](https://youtrack.jetbrains.com/issue/KT-15477) Introduce Throwable.addSuppressed extension
- [`KT-15310`](https://youtrack.jetbrains.com/issue/KT-15310) Add dynamic.unsafeCast
- [`KT-15436`](https://youtrack.jetbrains.com/issue/KT-15436) JS stdlib: org.w3c.fetch.RequestInit has 12 parameters, all required
- [`KT-15458`](https://youtrack.jetbrains.com/issue/KT-15458) Add print and println to common stdlib

### IDE
- Project View: Fix presentation of Kotlin files and their members when @JvmName having the same name as the file itself

#### no-arg / all-open
- [`KT-15419`](https://youtrack.jetbrains.com/issue/KT-15419) IDE build doesn't pick settings of all-open plugin
- [`KT-15686`](https://youtrack.jetbrains.com/issue/KT-15686) IDE build doesn't pick settings of no-arg plugin
- [`KT-15735`](https://youtrack.jetbrains.com/issue/KT-15735) Facet loses compiler plugin settings on reopening project, when "Use project settings" = Yes

#### Formatter
- [`KT-15542`](https://youtrack.jetbrains.com/issue/KT-15542) Formatter doesn't handle spaces around 'by' keyword
- [`KT-15544`](https://youtrack.jetbrains.com/issue/KT-15544) Formatter doesn't remove spaces around function reference operator

#### Intention actions, inspections and quick-fixes

##### New features
- Implement quickfix which enables/disables coroutine support in module or project
- [`KT-5045`](https://youtrack.jetbrains.com/issue/KT-5045) Intention to convert between two comparisons and range check and vice versa
- [`KT-5629`](https://youtrack.jetbrains.com/issue/KT-5629) Quick-fix to import extension method when arguments of non-extension method do not match
- [`KT-6217`](https://youtrack.jetbrains.com/issue/KT-6217) Add warning for unused equals expression
- [`KT-6824`](https://youtrack.jetbrains.com/issue/KT-6824) Quick-fix for applying spread operator where vararg is expected
- [`KT-8855`](https://youtrack.jetbrains.com/issue/KT-8855) Implement "Create label" quick-fix
- [`KT-15056`](https://youtrack.jetbrains.com/issue/KT-15056) Implement intention which converts object literal to class
- [`KT-15068`](https://youtrack.jetbrains.com/issue/KT-15068) Implement intention which rename file according to the top-level class name
- [`KT-15564`](https://youtrack.jetbrains.com/issue/KT-15564) Add quick-fix for changing primitive cast to primitive conversion method

##### Bug fixes
- [`KT-14630`](https://youtrack.jetbrains.com/issue/KT-14630) Clearer diagnostic message for platform type inspection
- [`KT-14745`](https://youtrack.jetbrains.com/issue/KT-14745) KNPE in convert primary constructor to secondary
- [`KT-14889`](https://youtrack.jetbrains.com/issue/KT-14889) Replace 'if' with elvis operator produces red code if result is referenced in 'if'
- [`KT-14907`](https://youtrack.jetbrains.com/issue/KT-14907) Quick-fix for missing operator adds infix modifier to created function
- [`KT-15092`](https://youtrack.jetbrains.com/issue/KT-15092) Suppress inspection "use property access syntax" for some getters and fix completion for them
- [`KT-15227`](https://youtrack.jetbrains.com/issue/KT-15227) "Replace if with elvis" silently changes semantics
- [`KT-15412`](https://youtrack.jetbrains.com/issue/KT-15412) "Join declaration and assignment" can break code with smart casts
- [`KT-15501`](https://youtrack.jetbrains.com/issue/KT-15501) Intention "Add names to call arguments" shouldn't appear when the only argument is a trailing lambda

#### Refactorings (Extract / Pull)
- [`KT-15611`](https://youtrack.jetbrains.com/issue/KT-15611) Extract Interface/Superclass: Disable const-properties
- Pull Up: Fix pull-up from object to superclass
- [`KT-15602`](https://youtrack.jetbrains.com/issue/KT-15602) Extract Interface/Superclass: Disable "Make abstract" for inline/external/lateinit members
- Extract Interface: Disable inline/external/lateinit members
- [`KT-12704`](https://youtrack.jetbrains.com/issue/KT-12704), [`KT-15583`](https://youtrack.jetbrains.com/issue/KT-15583) Override/Implement Members: Support all nullability annotations respected by the Kotlin compiler
- [`KT-15563`](https://youtrack.jetbrains.com/issue/KT-15563) Override Members: Allow overriding virtual synthetic members (e.g. equals(), hashCode(), toString(), etc.) in data classes
- [`KT-15355`](https://youtrack.jetbrains.com/issue/KT-15355) Extract Interface: Disable "Make abstract" and assume it to be true for abstract members of an interface
- [`KT-15353`](https://youtrack.jetbrains.com/issue/KT-15353) Extract Superclass/Interface: Allow extracting class with special name (and quotes)
- [`KT-15643`](https://youtrack.jetbrains.com/issue/KT-15643) Extract Interface/Pull Up: Disable "Make abstract" and assume it to be true for primary constructor parameter when moving to an interface
- [`KT-15607`](https://youtrack.jetbrains.com/issue/KT-15607) Extract Interface/Pull Up: Disable internal/protected members when moving to an interface
- [`KT-15640`](https://youtrack.jetbrains.com/issue/KT-15640) Extract Interface/Pull Up: Drop 'final' modifier when moving to an interface
- [`KT-15639`](https://youtrack.jetbrains.com/issue/KT-15639) Extract Superclass/Interface/Pull Up: Add spaces between 'abstract' modifier and annotations
- [`KT-15606`](https://youtrack.jetbrains.com/issue/KT-15606) Extract Interface/Pull Up: Warn about private members with usages in the original class
- [`KT-15635`](https://youtrack.jetbrains.com/issue/KT-15635) Extract Superclass/Interface: Fix bogus visibility warning inside a member when it's being moved as abstract
- [`KT-15598`](https://youtrack.jetbrains.com/issue/KT-15598) Extract Interface: Red-highlight members inherited from a super-interface when that interface reference itself is not extracted
- [`KT-15674`](https://youtrack.jetbrains.com/issue/KT-15674) Extract Superclass: Drop inapplicable modifiers when converting property-parameter to ordinary parameter

#### Multi-platform project support
- [`KT-14908`](https://youtrack.jetbrains.com/issue/KT-14908) Actions (quick-fixes) to create implementations of header elements
- [`KT-15305`](https://youtrack.jetbrains.com/issue/KT-15305) Do not report UNUSED for header declarations with implementations and vice versa
- [`KT-15601`](https://youtrack.jetbrains.com/issue/KT-15601) Cannot suppress HEADER_WITHOUT_IMPLEMENTATION
- [`KT-15641`](https://youtrack.jetbrains.com/issue/KT-15641) Quick-fix "Create header interface implementation" does nothing

#### Android support

- [`KT-12884`](https://youtrack.jetbrains.com/issue/KT-12884) Android Extensions: Refactor / Rename of activity name does not change import extension statement
- [`KT-14308`](https://youtrack.jetbrains.com/issue/KT-14308) Android Studio randomly hangs due to Java static member import quick-fix lags
- [`KT-14358`](https://youtrack.jetbrains.com/issue/KT-14358) Kotlin extensions: rename layout file: Throwable: "PSI and index do not match" through KotlinFullClassNameIndex.get()
- [`KT-15483`](https://youtrack.jetbrains.com/issue/KT-15483) Kotlin lint throws unexpected exceptions in IDE

#### Various issues
- [`KT-12872`](https://youtrack.jetbrains.com/issue/KT-12872) Don't show "defined in <very long qualifier here>" in quick doc for local variables
- [`KT-13001`](https://youtrack.jetbrains.com/issue/KT-13001) "Go to Type Declaration" is broken for stdlib types
- [`KT-13067`](https://youtrack.jetbrains.com/issue/KT-13067) Syntax colouring doesn't work for KDoc tags
- [`KT-14815`](https://youtrack.jetbrains.com/issue/KT-14815) alt + enter -> "import" over a constructor reference is not working
- [`KT-14819`](https://youtrack.jetbrains.com/issue/KT-14819) Quick documentation for special Enum functions doesn't work
- [`KT-15141`](https://youtrack.jetbrains.com/issue/KT-15141) Bogus import popup for when function call cannot be resolved fully
- [`KT-15154`](https://youtrack.jetbrains.com/issue/KT-15154) IllegalStateException on attempt to convert import statement to * if last added import is to typealias
- [`KT-15329`](https://youtrack.jetbrains.com/issue/KT-15329) Regex not inspected properly for javaJavaIdentifierStart and javaJavaIdentifierPart
- [`KT-15383`](https://youtrack.jetbrains.com/issue/KT-15383) Kotlin Scripts can only resolve stdlib functions/classes if they are in a source directory
- [`KT-15440`](https://youtrack.jetbrains.com/issue/KT-15440) Improve extensions detection in IDEA
- [`KT-15548`](https://youtrack.jetbrains.com/issue/KT-15548) Kotlin plugin: @Language injections specified in another module are ignored
- Invoke `StorageComponentContainerContributor` extension for module dependencies container as well (needed for "sam-with-receiver" plugin to work with scripts)

### J2K
- [`KT-6790`](https://youtrack.jetbrains.com/issue/KT-6790) J2K: Static import of Map.Entry is lost during conversion
- [`KT-14736`](https://youtrack.jetbrains.com/issue/KT-14736) J2K: Incorrect conversion of back ticks in javadoc {@code} tag
- [`KT-15027`](https://youtrack.jetbrains.com/issue/KT-15027) J2K: Annotations are set on functions, but not on property accessors

### Gradle support

- [`KT-15376`](https://youtrack.jetbrains.com/issue/KT-15376) Kotlin incremental=true: fixed compatibility with AS 2.3
- [`KT-15433`](https://youtrack.jetbrains.com/issue/KT-15433) Kotlin daemon swallows exceptions: fixed stack trace reporting
- [`KT-15682`](https://youtrack.jetbrains.com/issue/KT-15682) Uncheck "Use project settings" option on import Kotlin project from gradle


## 1.1-M04 (EAP-4)

### Language related changes

- [`KT-4481`](https://youtrack.jetbrains.com/issue/KT-4481) compareTo on primitive floats/doubles should behave naturally
- [`KT-11016`](https://youtrack.jetbrains.com/issue/KT-11016) Allow to annotate internal API to be used inside public inline functions
- [`KT-11128`](https://youtrack.jetbrains.com/issue/KT-11128) Member vs SAM conversion with more specific signature
- [`KT-12215`](https://youtrack.jetbrains.com/issue/KT-12215) Allowing to access protected members in public inline members creates potential binary compatibility problem
- [`KT-12531`](https://youtrack.jetbrains.com/issue/KT-12531) Report error when delegated member hides a supertype member
- [`KT-14650`](https://youtrack.jetbrains.com/issue/KT-14650) mod function on integral types is inconsistent with BigInteger.mod
- [`KT-14651`](https://youtrack.jetbrains.com/issue/KT-14651) Floating point comparisons shall operate according to IEEE754
- [`KT-14852`](https://youtrack.jetbrains.com/issue/KT-14852) It should not be possible to use typealias that abbreviates a generic projection as a constructor
- [`KT-15226`](https://youtrack.jetbrains.com/issue/KT-15226) Restrict delegation to java 8 default methods

### Reflection

- [`KT-12250`](https://youtrack.jetbrains.com/issue/KT-12250) Provide API for getting a single annotation by its class
- [`KT-14939`](https://youtrack.jetbrains.com/issue/KT-14939) VerifyError in accessors for bound property reference with receiver 'null'

### Compiler

#### Coroutines

- Major coroutines redesign - see [`KEEP`](https://github.com/Kotlin/kotlin-coroutines/blob/master/kotlin-coroutines-informal.md) for details

#### Optimizations

- [`KT-11734`](https://youtrack.jetbrains.com/issue/KT-11734) Optimize const vals by inlining them at call site
- [`KT-13570`](https://youtrack.jetbrains.com/issue/KT-13570) Generate TABLE/LOOKUPSWITCH if all when branches are const integer values
- [`KT-14746`](https://youtrack.jetbrains.com/issue/KT-14746) Captured Refs should not be volatile

#### Various issues

- [`KT-10982`](https://youtrack.jetbrains.com/issue/KT-10982) java.util.Map::compute* poor usability
- [`KT-12144`](https://youtrack.jetbrains.com/issue/KT-12144) Type inference incorporation error on SAM adapter call
- [`KT-14196`](https://youtrack.jetbrains.com/issue/KT-14196) Do not allow class literal with expression in annotation arguments
- [`KT-14453`](https://youtrack.jetbrains.com/issue/KT-14453) Regression: Type inference failed: inferred type is T but T was expected
- [`KT-14774`](https://youtrack.jetbrains.com/issue/KT-14774) Incorrect inner class modifier generated for sealed inner classes
- [`KT-14839`](https://youtrack.jetbrains.com/issue/KT-14839) CompilationException when calling inline fun with first arg of 2 (w/defaults) within catch block of Java exception type
- [`KT-14855`](https://youtrack.jetbrains.com/issue/KT-14855) Projection in type aliases should be allowed in supertypes and constructor invocations if they expand to non-toplevel projections
- [`KT-14887`](https://youtrack.jetbrains.com/issue/KT-14887) Unhelpful error "public-API inline function cannot access non-public-API" for unresolved call inside inline function
- [`KT-14930`](https://youtrack.jetbrains.com/issue/KT-14930) Android: creating Kotlin activity: UOE at EmptyList.removeAll()
- [`KT-15146`](https://youtrack.jetbrains.com/issue/KT-15146) Kapt3 no source files on unittest
- [`KT-15272`](https://youtrack.jetbrains.com/issue/KT-15272) Exception when building 2 projects at the same time

### JavaScript backend

#### dynamic type

- [`KT-8207`](https://youtrack.jetbrains.com/issue/KT-8207) Extension function on dynamic resolves on any type
- [`KT-6579`](https://youtrack.jetbrains.com/issue/KT-6579) JS: prohibit to use `in` and `!in` on dynamic
- [`KT-6580`](https://youtrack.jetbrains.com/issue/KT-6580) JS: prohibit to use more than one argument in indexed access on dynamic
- [`KT-13615`](https://youtrack.jetbrains.com/issue/KT-13615) JS: don't generate guard for catch with dynamic type

#### @native/external

- [`KT-13893`](https://youtrack.jetbrains.com/issue/KT-13893) JS: Replace @native annotation with external modifier
- [`KT-12877`](https://youtrack.jetbrains.com/issue/KT-12877) Allow to specify module for native JS declarations
- [`KT-14806`](https://youtrack.jetbrains.com/issue/KT-14806) JS: name of a local variable clashes with native declaration from global scope

#### Diagnostics

- [`KT-13889`](https://youtrack.jetbrains.com/issue/KT-13889) JS: prohibit overriding native functions with default values assigned to parameters
- [`KT-13894`](https://youtrack.jetbrains.com/issue/KT-13894) JS: prohibit native declaration inside non-native
- [`KT-13895`](https://youtrack.jetbrains.com/issue/KT-13895) JS: RUNTIME annotations
- [`KT-13896`](https://youtrack.jetbrains.com/issue/KT-13896) JS: prohibit external(native) extension functions and properties
- [`KT-13897`](https://youtrack.jetbrains.com/issue/KT-13897) JS: prohibit native(external) files and typealiases
- [`KT-13910`](https://youtrack.jetbrains.com/issue/KT-13910) JS: prohibit override members of native declaration with overloads
- [`KT-14027`](https://youtrack.jetbrains.com/issue/KT-14027) JS: prohibit native inner classes
- [`KT-14029`](https://youtrack.jetbrains.com/issue/KT-14029) JS: prohibit private members inside native declarations
- [`KT-14037`](https://youtrack.jetbrains.com/issue/KT-14037) JS: prohibit using native interfaces in RHS of IS
- [`KT-14038`](https://youtrack.jetbrains.com/issue/KT-14038) JS: warn when using native interface in RHS of AS
- [`KT-15130`](https://youtrack.jetbrains.com/issue/KT-15130) JS: prohibit inheritance native from non-native
- [`KT-12600`](https://youtrack.jetbrains.com/issue/KT-12600) JS: type check with a native interface compiles but crash at runtime
- [`KT-13307`](https://youtrack.jetbrains.com/issue/KT-13307) KotlinJS cannot cast to a marker interface.

#### Language features support

- [`KT-13573`](https://youtrack.jetbrains.com/issue/KT-13573) JS: support bound callable reference
- [`KT-14634`](https://youtrack.jetbrains.com/issue/KT-14634) JS: support enumValues / enumValueOf
- [`KT-15058`](https://youtrack.jetbrains.com/issue/KT-15058) JS: replace suspend function convention

#### Issues related to kotlin.Any

- [`KT-7664`](https://youtrack.jetbrains.com/issue/KT-7664) JS: "x is Any" is always false
- [`KT-7665`](https://youtrack.jetbrains.com/issue/KT-7665) JS: creating Any instance crashes on runtime
- [`KT-15131`](https://youtrack.jetbrains.com/issue/KT-15131) JS: don't mangle Any.equals

#### Various issues

- [`KT-14033`](https://youtrack.jetbrains.com/issue/KT-14033) JS: don't optimize (based on type information) by default expressions with any of "as, is, !is, as?, ?., !!"
- [`KT-13616`](https://youtrack.jetbrains.com/issue/KT-13616) JS: don't omit guard for catch with Throwable type
- [`KT-12976`](https://youtrack.jetbrains.com/issue/KT-12976) JS: human-friendly error message on wrong modules order
- [`KT-15212`](https://youtrack.jetbrains.com/issue/KT-15212) JS: link unqualified names in `js(...)` function to local functions in outer Kotlin function by name
- [`KT-14750`](https://youtrack.jetbrains.com/issue/KT-14750) JS: remove unnecessary functions from kotlin.js

#### Bugfixes

- [`KT-12566`](https://youtrack.jetbrains.com/issue/KT-12566) JS: inner local class should refer to captured variables via its outer class
- [`KT-12527`](https://youtrack.jetbrains.com/issue/KT-12527) Reified is-check works wrongly for chained calls
- [`KT-12586`](https://youtrack.jetbrains.com/issue/KT-12586) JS: compiler crashes when call inline function inside string templeate
- [`KT-13164`](https://youtrack.jetbrains.com/issue/KT-13164) Ecma TypeError on extending local class from inner one
- [`KT-14888`](https://youtrack.jetbrains.com/issue/KT-14888) JS: Compiler error: Cannot get FQ name of local class: lazy class <no name provided>
- [`KT-14748`](https://youtrack.jetbrains.com/issue/KT-14748) JS: eliminate unused functions
- [`KT-14999`](https://youtrack.jetbrains.com/issue/KT-14999) JS: Operator set + labeled lambdas
- [`KT-15007`](https://youtrack.jetbrains.com/issue/KT-15007) JS: Dies when checking if exception implements interface. TypeError: Cannot read property 'baseClasses' of undefined
- [`KT-15073`](https://youtrack.jetbrains.com/issue/KT-15073) KT to JS losing extension function's receiver
- [`KT-15169`](https://youtrack.jetbrains.com/issue/KT-15169) JS: compiler fails on annotated expression with TRE at Translation.doTranslateExpression()
- [`KT-13522`](https://youtrack.jetbrains.com/issue/KT-13522) JS: can't use captured reified type paramter in jsClass
- [`KT-13784`](https://youtrack.jetbrains.com/issue/KT-13784) JS: lambda was not inlined for function with reified parameter declared in another module
- [`KT-13792`](https://youtrack.jetbrains.com/issue/KT-13792) JS: inner class of local class does not capture enclosing class properly
- [`KT-15327`](https://youtrack.jetbrains.com/issue/KT-15327) JS: Enum `valueOf` should throw IllegalArgumentException

### Standard library

- [`KT-7930`](https://youtrack.jetbrains.com/issue/KT-7930) Make String.toInt(), toLong(), etc. nullable instead of throwing exception
- [`KT-8220`](https://youtrack.jetbrains.com/issue/KT-8220) Add #peek method to Sequence similar to Stream.peek
- [`KT-8286`](https://youtrack.jetbrains.com/issue/KT-8286) Int.toString and String.toInt with base as parameter
- [`KT-14034`](https://youtrack.jetbrains.com/issue/KT-14034) JS: unsafeCast function
- [`KT-15181`](https://youtrack.jetbrains.com/issue/KT-15181) Some source files are missing from published sources on Bintray

### IDE

- [`KT-15205`](https://youtrack.jetbrains.com/issue/KT-15205) Implement quick-fix for increasing module language level to enable unsupported language features

###### Issues fixed
- [`KT-14693`](https://youtrack.jetbrains.com/issue/KT-14693) Introduce Type Alias: Do not suggest type qualifiers
- [`KT-14696`](https://youtrack.jetbrains.com/issue/KT-14696) Introduce Type Alias: Fix NPE during dialog repaint
- [`KT-14685`](https://youtrack.jetbrains.com/issue/KT-14685) Introduce Type Alias: Replace type usages in constructor calls
- [`KT-14861`](https://youtrack.jetbrains.com/issue/KT-14861) Introduce Type Alias: Support callable references/class literals
- [`KT-15204`](https://youtrack.jetbrains.com/issue/KT-15204) Implement navigation from header to its implementation and vice versa
- [`KT-15269`](https://youtrack.jetbrains.com/issue/KT-15269) Quickfix for external (native) extension declarations
- [`KT-15293`](https://youtrack.jetbrains.com/issue/KT-15293) Add 1.1 EAP repository when creating a new Gradle project with 1.1 EAP

### Scripting

- [`KT-14538`](https://youtrack.jetbrains.com/issue/KT-14538) Kotlin gradle script files appear totally unresolved
- [`KT-14706`](https://youtrack.jetbrains.com/issue/KT-14706) Support package declaration in scripting
- [`KT-14707`](https://youtrack.jetbrains.com/issue/KT-14707) Support javax.script.Invocable on the JSR 223 ScriptEngine
- [`KT-14708`](https://youtrack.jetbrains.com/issue/KT-14708) kotlin-script-runtime is not published
- [`KT-14713`](https://youtrack.jetbrains.com/issue/KT-14713) Make it possible to use JSR 223 support without specifying compiler JAR absolute path
- [`KT-15064`](https://youtrack.jetbrains.com/issue/KT-15064) Gradle build with script .kts file: NPE at ScriptCodegen.genConstructor()

### Gradle support

- [`KT-15080`](https://youtrack.jetbrains.com/issue/KT-15080) Gradle build fails with Gradle 3.2 (master)
- [`KT-15120`](https://youtrack.jetbrains.com/issue/KT-15120) Gradle JS test compile task doesn't pick up production code
- [`KT-15127`](https://youtrack.jetbrains.com/issue/KT-15127) JS "compiler jar not found" with Gradle 3.2
- [`KT-15133`](https://youtrack.jetbrains.com/issue/KT-15133) Recent gradle-script-kotlin 3.3 distributions are unusable
- [`KT-15218`](https://youtrack.jetbrains.com/issue/KT-15218) Isolate Gradle Kotlin compiler process


## 1.1-M03 (EAP-3)

### New language features

- [`KT-2964`](https://youtrack.jetbrains.com/issue/KT-2964) Underscores in integer literals
    (see [KEEP](https://github.com/Kotlin/KEEP/blob/master/proposals/underscores-in-numeric-literals.md))
- [`KT-3824`](https://youtrack.jetbrains.com/issue/KT-3824) Underscore in lambda for unused parameters
    (see [KEEP](https://github.com/Kotlin/KEEP/blob/master/proposals/underscore-for-unused-parameters.md))
- [`KT-2783`](https://youtrack.jetbrains.com/issue/KT-2783) Allow to skip some components in a multi-declaration
    (see the same [KEEP](https://github.com/Kotlin/KEEP/blob/master/proposals/underscore-for-unused-parameters.md))
- [`KT-11551`](https://youtrack.jetbrains.com/issue/KT-11551) limited scope for dsl writers 
    (see [KEEP](https://github.com/Kotlin/KEEP/blob/master/proposals/scope-control-for-implicit-receivers.md))

### Compiler

#### Coroutines related issues
- Make fields for storing lambda parameters non-final (as they get assigned within `invoke` call)
- [`KT-14719`](https://youtrack.jetbrains.com/issue/KT-14719) Make initial continuation able to be resumed with exception 
- [`KT-14636`](https://youtrack.jetbrains.com/issue/KT-14636) Coroutine fields should not be volatile
- [`KT-14718`](https://youtrack.jetbrains.com/issue/KT-14718) Validate label value of coroutine in case of no suspension points

#### Typealises related issues
- [`KT-13514`](https://youtrack.jetbrains.com/issue/KT-13514) Type inference doesn't work with generic typealiases
- [`KT-13837`](https://youtrack.jetbrains.com/issue/KT-13837) Error "Type alias expands to T, which is not a class, an interface, or an object" 
    should also appear for local type aliases
- [`KT-14307`](https://youtrack.jetbrains.com/issue/KT-14307) Local recursive type alias should be an error
- [`KT-14400`](https://youtrack.jetbrains.com/issue/KT-14400) Compiler Error IllegalStateException: kotlin.NotImplementedError when anonymous 
    object inherits from typealias
- [`KT-14377`](https://youtrack.jetbrains.com/issue/KT-14377) Expected error: Modifier 'companion' is not applicable to 'typealias'
- [`KT-14498`](https://youtrack.jetbrains.com/issue/KT-14498) typealias allows to circumvent variance annotations
- [`KT-14641`](https://youtrack.jetbrains.com/issue/KT-14641) An exception while processing a nested type alias access after a dot

#### Various issues
- [`KT-550`](https://youtrack.jetbrains.com/issue/KT-550) Properties without initializer but with get must infer type from getter
- [`KT-8816`](https://youtrack.jetbrains.com/issue/KT-8816) Generate Kotlin parameter names in the same form as expected for Java 8 reflection
- [`KT-10569`](https://youtrack.jetbrains.com/issue/KT-10569) Cannot iterate over values of an enum class when it is used as a generic parameter
    (see [KEEP](https://github.com/Kotlin/KEEP/blob/master/proposals/generic-values-and-valueof-for-enums.md))
- [`KT-13557`](https://youtrack.jetbrains.com/issue/KT-13557) VerifyError with delegated local variable used in object expression
- [`KT-13890`](https://youtrack.jetbrains.com/issue/KT-13890) IllegalAccessError when invoking protected method with default arguments
- [`KT-14012`](https://youtrack.jetbrains.com/issue/KT-14012) Back-end (JVM) Internal error every first compilation after the source code change
- [`KT-14201`](https://youtrack.jetbrains.com/issue/KT-14201) UnsupportedOperationException: Don't know how to generate outer expression for anonymous 
    object with invoke and non-trivial closure
- [`KT-14318`](https://youtrack.jetbrains.com/issue/KT-14318) Repeated annotations resulting from type alias expansion should be reported
- [`KT-14347`](https://youtrack.jetbrains.com/issue/KT-14347) Report UNUSED_PARAMETER/VARIABLE on named unused lambda parameters/destructuring entries
- [`KT-14352`](https://youtrack.jetbrains.com/issue/KT-14352) @SinceKotlin is not taken into account for companion object member referenced via 
    type alias
- [`KT-14357`](https://youtrack.jetbrains.com/issue/KT-14357) Try-catch used in false condition generates CompilationException
- [`KT-14502`](https://youtrack.jetbrains.com/issue/KT-14502) Prohibit irrelevant modifiers and annotations on destructured parameters in lambda
- [`KT-14692`](https://youtrack.jetbrains.com/issue/KT-14692) Change resolution scope for componentX in lambda parameters
- [`KT-14824`](https://youtrack.jetbrains.com/issue/KT-14824) Back-end (JVM) Internal error: Couldn't inline method call 'get' into local final fun 
    StorageComponentContainer.<anonymous>(): kotlin.Unit
- [`KT-14798`](https://youtrack.jetbrains.com/issue/KT-14798) Gradle 3.2 AssertionError: Built-in class kotlin.ParameterName is not found

### JS

#### Feature support
- [`KT-6985`](https://youtrack.jetbrains.com/issue/KT-6985) Support Exceptions in JS
- [`KT-13574`](https://youtrack.jetbrains.com/issue/KT-13574) JS: support coroutines
- [`KT-14422`](https://youtrack.jetbrains.com/issue/KT-14422) JS: Support destructuring in lambda parameters
- [`KT-14507`](https://youtrack.jetbrains.com/issue/KT-14507) JS: allow to skip some components in a multi-declaration

#### Library updates
- [`KT-14637`](https://youtrack.jetbrains.com/issue/KT-14637) JS: Missing ArrayList.ensureCapacity
    
#### Other issues
- [`KT-2328`](https://youtrack.jetbrains.com/issue/KT-2328) js: kotlin exceptions must inherit Error
- [`KT-5537`](https://youtrack.jetbrains.com/issue/KT-5537) Drop Cloneable in JS
- [`KT-7014`](https://youtrack.jetbrains.com/issue/KT-7014) JS: generate code which more friendly to js tools (minifier, optimizer, linter etc)
- [`KT-8019`](https://youtrack.jetbrains.com/issue/KT-8019) JS: no stackTrace in exception subclasses
- [`KT-10911`](https://youtrack.jetbrains.com/issue/KT-10911) JS: Throwable properties aren't supported well
- [`KT-13912`](https://youtrack.jetbrains.com/issue/KT-13912) JS: Compiler NPE at JsSourceGenerationVisitor. Lambda with empty [if] block passed 
    to inline function
- [`KT-14535`](https://youtrack.jetbrains.com/issue/KT-14535) JS: Broken modification of captured variables defined by a destructuring declaration

### Standard Library
- [`KT-2084`](https://youtrack.jetbrains.com/issue/KT-2084) Common API should be available without referring to java.* packages

    Now those common types, which are supported on all platforms, are available in `kotlin.*` packages, and are imported by default. These include:
    - `ArrayList`, `HashSet`, `LinkedHashSet`, `HashMap`, `LinkedHashMap` in `kotlin.collections`
    - `Appendable` and `StringBuilder` in `kotlin.text`
    - `Comparator` in `kotlin.comparisons`
    On JVM these are just typealiases of the good old types from `java.util` and `java.lang`
- [`KT-13554`](https://youtrack.jetbrains.com/issue/KT-13554) Introduce bitwise operations `and`/`or`/`xor`/`inv` for Byte and Short
- [`KT-13582`](https://youtrack.jetbrains.com/issue/KT-13582)  New platform-agnostic extensions for arrays: `contentEquals` to compare arrays' 
    content for equality, `contentHashCode` to get hashcode of array's content, and `contentToString` to get the string representation of array elements.
- [`KT-14510`](https://youtrack.jetbrains.com/issue/KT-14510) Generic constraints of `Array.flatten` signature were relaxed a bit to make it just usable.
- [`KT-14789`](https://youtrack.jetbrains.com/issue/KT-14789) Provide `KotlinVersion` class, which allows to get the current version of the standard 
    library and compare it with some other `KotlinVersion` value.

### IDE
- [`KT-14409`](https://youtrack.jetbrains.com/issue/KT-14409) Incorrect "Variable can be declared immutable" inspection for local delegated variable
- [`KT-14431`](https://youtrack.jetbrains.com/issue/KT-14431) Create quick-fix on UNUSED_PARAMETER/VARIABLE when it can be replaced with one underscore
- [`KT-14794`](https://youtrack.jetbrains.com/issue/KT-14794) Add /Specify type/Remove explicit type intentions for property with getters if type 
    can be inferred
- [`KT-14752`](https://youtrack.jetbrains.com/issue/KT-14752) Exception while typing @JsName annotation in editor

## 1.1-M02 (EAP-2)

### Language features

+ **Destructuring for lambdas** ([proposal](https://github.com/Kotlin/KEEP/issues/32))

    Current limitations:

    - Nested destructuring is not supported
    - Destructuring in named functions/constructors is not supported
    - Is not supported for JS target
        
### Compiler

#### Smart cast enhancements
- [`KT-2127`](https://youtrack.jetbrains.com/issue/KT-2127) Smart cast receiver to not null after a not null safe call
- [`KT-6840`](https://youtrack.jetbrains.com/issue/KT-6840) Make data flow information the same for assigned and assignee
- [`KT-13426`](https://youtrack.jetbrains.com/issue/KT-13426) Fix exception when smartcast on both dispatch & extension receiver

#### Bound references related issues
- [`KT-12995`](https://youtrack.jetbrains.com/issue/KT-12995) Do not skip generation of the left-hand side for intrinsic bound references and class literals
- [`KT-13075`](https://youtrack.jetbrains.com/issue/KT-13075) Fix codegen for bound class reference
- [`KT-13110`](https://youtrack.jetbrains.com/issue/KT-13110) Fix type mismatch error on class literal with integer receiver expression
- [`KT-13172`](https://youtrack.jetbrains.com/issue/KT-13172) Report error on "this::class" in super constructor call
- [`KT-13271`](https://youtrack.jetbrains.com/issue/KT-13271) Fix incorrect unsupported error on synthetic extension call on LHS of ::
- [`KT-13367`](https://youtrack.jetbrains.com/issue/KT-13367) Inline bound callable reference if it's used only as a lambda

#### Coroutines related issues
- [`KT-13156`](https://youtrack.jetbrains.com/issue/KT-13156) Do not execute last Unit-typed coroutine statement twice
- [`KT-13246`](https://youtrack.jetbrains.com/issue/KT-13246) Fix VerifyError with coroutines on Dalvik
- [`KT-13289`](https://youtrack.jetbrains.com/issue/KT-13289) Fix VerifyError with coroutines: Bad type on operand stack
- [`KT-13409`](https://youtrack.jetbrains.com/issue/KT-13409) Fix generic variable spilling with coroutines
- [`KT-13531`](https://youtrack.jetbrains.com/issue/KT-13531) Fix ClassCastException when coercion to Unit interacts with generic await() and coroutines
- Prohibit `Continuation<*>` as a last parameter of suspend functions
- [`KT-13560`](https://youtrack.jetbrains.com/issue/KT-13560) Prohibit non-Unit suspend functions

#### Typealises related issues
- [`KT-13200`](https://youtrack.jetbrains.com/issue/KT-13200) Fix incorrect number of required type arguments reported on typealias
- [`KT-13181`](https://youtrack.jetbrains.com/issue/KT-13181) Fix unresolved reference for a type alias from a different module
- [`KT-13161`](https://youtrack.jetbrains.com/issue/KT-13161) Support java static methods calls with typealiases
- [`KT-13835`](https://youtrack.jetbrains.com/issue/KT-13835) Do not lose nullability information  while expanding type alias in projection position
- [`KT-13422`](https://youtrack.jetbrains.com/issue/KT-13422) Prohibit usage of type alias to exception class as an object in 'throw' expression 
- [`KT-13735`](https://youtrack.jetbrains.com/issue/KT-13735) Fix NoSuchMethodError for generic typealias access
- [`KT-13513`](https://youtrack.jetbrains.com/issue/KT-13513) Support SAM constructors for aliased java functional types
- [`KT-13822`](https://youtrack.jetbrains.com/issue/KT-13822) Fix exception for start-projection of a type alias
- [`KT-14071`](https://youtrack.jetbrains.com/issue/KT-14071) Prohibit using type alias as a qualifier for super
- [`KT-14282`](https://youtrack.jetbrains.com/issue/KT-14282) Report error on unused type alias with -language-version 1.0
- [`KT-14274`](https://youtrack.jetbrains.com/issue/KT-14274) Fix type alias resolution when it's used for supertype constructor call

#### JDK dependent built-in classes related issues
- [`KT-13209`](https://youtrack.jetbrains.com/issue/KT-13209) Change first parameter's type of Map.getOrDefault to K instead of Any
- [`KT-13069`](https://youtrack.jetbrains.com/issue/KT-13069) Do not emit invalid DefaultImpls delegation when interface extends MutableMap with JDK8

#### `data` classes and inheritance
- [`KT-11306`](https://youtrack.jetbrains.com/issue/KT-11306) Allow data classes to implement equals/hashCode/toString from base classes

#### Various JVM code generation issues
- [`KT-13182`](https://youtrack.jetbrains.com/issue/KT-13182) Fix compiler internal error at inline
- [`KT-13757`](https://youtrack.jetbrains.com/issue/KT-13757) Prohibit referencing nested classes by name with $
- [`KT-12985`](https://youtrack.jetbrains.com/issue/KT-12985) Do not create range instances for 'for' loop in CharSequence.indices
- [`KT-13931`](https://youtrack.jetbrains.com/issue/KT-13931) Optimize generated code for IntRange#contains

#### Various analysis & diagnostic issues
- [`KT-435`](https://youtrack.jetbrains.com/issue/KT-435) Use parameter names in error messages when calling a function-valued expression
- [`KT-10001`](https://youtrack.jetbrains.com/issue/KT-10001) Fix false unnecessary non-null assertion on a pair element
- [`KT-12811`](https://youtrack.jetbrains.com/issue/KT-12811) Treat function declaration as final if it is a member of a final class
- [`KT-13961`](https://youtrack.jetbrains.com/issue/KT-13961) Report REDECLARATION on private-in-file 'foo' vs public 'foo' in different file

### JS

#### Feature support
- [`KT-13544`](https://youtrack.jetbrains.com/issue/KT-13544) Support type aliases in JS
- [`KT-13345`](https://youtrack.jetbrains.com/issue/KT-13345) Support class literals in JS

#### Library updates
- [`KT-18`](https://youtrack.jetbrains.com/issue/KT-18) Move exceptions from `java.lang` to `kotlin` package
- [`KT-12386`](https://youtrack.jetbrains.com/issue/KT-12386) Rewrite JS collections in Kotlin, move them to `kotlin.collections` package
- [`KT-7809`](https://youtrack.jetbrains.com/issue/KT-7809) Make Collection implementations conform to their declared interfaces
- [`KT-7473`](https://youtrack.jetbrains.com/issue/KT-7473) Make AbstractCollection.equals check object type
- [`KT-13429`](https://youtrack.jetbrains.com/issue/KT-13429) Make 'remove' on fresh iterator throw exception  instead of removing last element
- [`KT-13459`](https://youtrack.jetbrains.com/issue/KT-13459) Make JS implementation of ArrayList::add(index, element) check the index is in valid range
- [`KT-8724`](https://youtrack.jetbrains.com/issue/KT-8724) Fix MutableIterator.remove() for HashMap
- [`KT-10786`](https://youtrack.jetbrains.com/issue/KT-10786) Make Map.keys return view of map keys instead of snapshot
- [`KT-14194`](https://youtrack.jetbrains.com/issue/KT-14194) Make HashMap.putAll implementation not to call getKey/getValue

### Standard Library

#### Backward compatibility
- [`KT-14297`](https://youtrack.jetbrains.com/issue/KT-14297) Add @SinceKotlin annotation to support compatibility with compilation against older standard library
- [`KT-14213`](https://youtrack.jetbrains.com/issue/KT-14213) Ensure printStackTrace can be called with -language-version 1.0

#### Enhancements
- [`KEEP-53`](https://github.com/Kotlin/KEEP/blob/master/proposals/stdlib/abstract-collections.md) Provide two distinct hierarchies of abstract collections: one for implementing read-only/immutable collections, and other for implementing mutable collections
- [`KEEP-13`](https://github.com/Kotlin/KEEP/blob/master/proposals/stdlib/map-copying.md) Provide extension functions to copy maps
- [`KT-18`](https://youtrack.jetbrains.com/issue/KT-18) Introduce type aliases for common exceptions from `java.lang` in `kotlin` package
- [`KT-12762`](https://youtrack.jetbrains.com/issue/KT-12762) Make `kotlin.ranges.until` return an empty range for "illegal" 'to' parameter
- [`KT-12894`](https://youtrack.jetbrains.com/issue/KT-12894) Allow nullable receiver for `use` extension

### Reflection

#### New features
- [`KT-8998`](https://youtrack.jetbrains.com/issue/KT-8998) Introduce comprehensive API to work with KType instances 
- [`KT-10447`](https://youtrack.jetbrains.com/issue/KT-10447) Provide a way to check if a KClass is a data class
- [`KT-11284`](https://youtrack.jetbrains.com/issue/KT-11284) Add KClass<T>.cast extension
- [`KT-13106`](https://youtrack.jetbrains.com/issue/KT-13106) Support annotation constructors in reflection

#### Optimizations
- [`KT-10651`](https://youtrack.jetbrains.com/issue/KT-10651) Optimize KClass.simpleName

### IDE

###### New features
- [`KT-12903`](https://youtrack.jetbrains.com/issue/KT-12903) Implement "Inline type alias" refactoring
- [`KT-12902`](https://youtrack.jetbrains.com/issue/KT-12902) Implement "Introduce type alias" refactoring
- [`KT-12904`](https://youtrack.jetbrains.com/issue/KT-12904) Implement "Create type alias from usage" quick fix
- [`KT-9016`](https://youtrack.jetbrains.com/issue/KT-9016) Make use of named higher order function parameters
- [`KT-12205`](https://youtrack.jetbrains.com/issue/KT-12205) Suggest import of Kotlin static members in editor with Java source
- [`KT-13941`](https://youtrack.jetbrains.com/issue/KT-13941) Implement intention for introducing destructured lambda parameters when it's possible
- [`KT-13943`](https://youtrack.jetbrains.com/issue/KT-13943) Implement inspection and quickfix for to detect a manual destructuring of for / lambda parameter

###### Issues fixed
- [`KT-13004`](https://youtrack.jetbrains.com/issue/KT-13004) Support bound method references in completion
- [`KT-13242`](https://youtrack.jetbrains.com/issue/KT-13242) Suggest 'typealias' keyword in completion
- [`KT-13244`](https://youtrack.jetbrains.com/issue/KT-13244) Override/Implement Members: Do not expand type aliases in the generated members
- [`KT-13611`](https://youtrack.jetbrains.com/issue/KT-13611) Go to Class: Fix presentation of type aliases
- [`KT-13759`](https://youtrack.jetbrains.com/issue/KT-13759) Rename: Process object-wrapping alias references
- [`KT-13955`](https://youtrack.jetbrains.com/issue/KT-13955) Find Usages: Add special type for usages inside of type aliases
- [`KT-13479`](https://youtrack.jetbrains.com/issue/KT-13479) Support navigation to type aliases from binaries
- [`KT-13766`](https://youtrack.jetbrains.com/issue/KT-13766) Fix optimize imports not to add wrong and unnecessary import because of type alias
- [`KT-12949`](https://youtrack.jetbrains.com/issue/KT-12949) Consider type aliases as candidates for import
- [`KT-13266`](https://youtrack.jetbrains.com/issue/KT-13266) Suggest non-imported type aliases in completion
- [`KT-13689`](https://youtrack.jetbrains.com/issue/KT-13689) Do not treat type alias constructor usage as original type usage for optimize imports

### Scripting

- A new library `kotlin-script-util` containing utilities for implementing kotlin script support  
- [`KT-7880`](https://youtrack.jetbrains.com/issue/KT-7880) Experimental support for JSR 223 Scripting API
- [`KT-13975`](https://youtrack.jetbrains.com/issue/KT-13975), [`KT-14264`](https://youtrack.jetbrains.com/issue/KT-14264) Convert error on retrieving gradle plugin settings to warning
- Implement support for custom template-based scripts in command-line compiler, maven and gradle plugins

## 1.1-M01 (EAP-1)

### Language features

+ **Coroutines (async/await, generators)** ([proposal](https://github.com/Kotlin/kotlin-coroutines))

    Current limitations:

    - for some cases type inference is not supported yet
    - limited IDE support
    - allowed only one `handleResult` function: [design](https://github.com/Kotlin/kotlin-coroutines/blob/master/kotlin-coroutines-informal.md#result-handlers)
    - handling `finally` blocks is not supported: [issue](https://github.com/Kotlin/kotlin-coroutines/issues/1)

+ **Bound callable references** ([proposal](https://github.com/Kotlin/KEEP/issues/5))

+ **Type aliases** ([proposal](https://github.com/Kotlin/KEEP/issues/4))

    Current limitations:
    - type alias constructors for inner classes are not supported yet
    - annotations on type alias are not supported yet
    - limited IDE support

+ **Local delegated properties** ([proposal](https://github.com/Kotlin/KEEP/issues/25))

+ **JDK dependent built-in classes** ([proposal](https://github.com/Kotlin/KEEP/issues/30))

+ **Sealed class inheritors in the same file** ([proposal](https://github.com/Kotlin/KEEP/issues/29))
+ **Allow base classes for data classes** ([proposal](https://github.com/Kotlin/KEEP/issues/31))


### Scripting

- Implement support for [Script Definition Template](https://github.com/Kotlin/KEEP/blob/da9f3ec5f78429e7560bfc284cb7f52e02282b1f/proposals/script-definition-template.md)
and related functionality, except the following parts:
  - automatic script templates discovery is not implemented
  - `@file:ScriptTemplate` annotation is not supported
  - the parameters `javaHome` and `scripts` from `KotlinScriptExternalDependencies` are not used yet
- Implement support for custom template-based scripts in IDEA: resolving, completion and navigation to symbols from script classpath and sources
- Implement GradleScriptTemplatesProvider extension that supplies a script template if gradle with
[kotlin script support](https://github.com/gradle/gradle-script-kotlin) is used in the project


### Compiler

###### Issues fixed
- [`KT-4779`](https://youtrack.jetbrains.com/issue/KT-4779) Generate default methods for implementations in interfaces
- [`KT-11780`](https://youtrack.jetbrains.com/issue/KT-11780) Fixed incorrect "No cast needed" warning
- [`KT-12156`](https://youtrack.jetbrains.com/issue/KT-12156) Fixed incorrect error on `inline` modifier inside final class
- [`KT-12358`](https://youtrack.jetbrains.com/issue/KT-12358) Report missing error "Abstract member not implemented" when a fake method of 'Any' is inherited from an interface
- [`KT-6206`](https://youtrack.jetbrains.com/issue/KT-6206) Generate equals/hashCode/toString in data class always unless it'll cause a JVM signature clash error
- [`KT-8990`](https://youtrack.jetbrains.com/issue/KT-8990) Fixed incorrect error "virtual member hidden" for a private method of an inner class
- [`KT-12429`](https://youtrack.jetbrains.com/issue/KT-12429) Fixed visibility checks for annotation usage on top-level declarations
- [`KT-5068`](https://youtrack.jetbrains.com/issue/KT-5068) Introduced a special diagnostic message for "type mismatch" errors such as `fun f(): Int = { 1 }`.

### Standard Library

- [`KT-8254`](https://youtrack.jetbrains.com/issue/KT-8254) Provide standard library supplement artifacts for using with JDK 7 and 8.
These artifacts include extensions for the types available in the latter JDKs, such as `AutoCloseable.use` ([`KT-5899`](https://youtrack.jetbrains.com/issue/KT-5899)) or `Stream.toList`.
- [`KT-12753`](https://youtrack.jetbrains.com/issue/KT-12753) Provide an access to named group matches of `Regex` match result (for JDK 8 only).
- Add `assertFails` overload with message to kotlin-test.


### IDE

###### New features

+ [`KT-12019`](https://youtrack.jetbrains.com/issue/KT-12019) Introduce "redundant `if`" inspection

###### Issues fixed

+ [`KT-12389`](https://youtrack.jetbrains.com/issue/KT-12389) Do not exit from REPL when toString() of user class throws an exception
+ [`KT-12129`](https://youtrack.jetbrains.com/issue/KT-12129) Fixed link on api reference page in KDoc

## 1.0.7

### IDE

- Project View: Fix presentation of Kotlin files and their members when @JvmName having the same name as the file itself
- [`KT-15611`](https://youtrack.jetbrains.com/issue/KT-15611) Extract Interface/Superclass: Disable const-properties
- Pull Up: Fix pull-up from object to superclass
- [`KT-15602`](https://youtrack.jetbrains.com/issue/KT-15602) Extract Interface/Superclass: Disable "Make abstract" for inline/external/lateinit members
- Extract Interface: Disable inline/external/lateinit members
- [`KT-12704`](https://youtrack.jetbrains.com/issue/KT-12704), [`KT-15583`](https://youtrack.jetbrains.com/issue/KT-15583) Override/Implement Members: Support all nullability annotations respected by the Kotlin compiler
- [`KT-15563`](https://youtrack.jetbrains.com/issue/KT-15563) Override Members: Allow overriding virtual synthetic members (e.g. equals(), hashCode(), toString(), etc.) in data classes
- [`KT-15355`](https://youtrack.jetbrains.com/issue/KT-15355) Extract Interface: Disable "Make abstract" and assume it to be true for abstract members of an interface
- [`KT-15353`](https://youtrack.jetbrains.com/issue/KT-15353) Extract Superclass/Interface: Allow extracting class with special name (and quotes)
- [`KT-15643`](https://youtrack.jetbrains.com/issue/KT-15643) Extract Interface/Pull Up: Disable "Make abstract" and assume it to be true for primary constructor parameter when moving to an interface
- [`KT-15607`](https://youtrack.jetbrains.com/issue/KT-15607) Extract Interface/Pull Up: Disable internal/protected members when moving to an interface
- [`KT-15640`](https://youtrack.jetbrains.com/issue/KT-15640) Extract Interface/Pull Up: Drop 'final' modifier when moving to an interface
- [`KT-15639`](https://youtrack.jetbrains.com/issue/KT-15639) Extract Superclass/Interface/Pull Up: Add spaces between 'abstract' modifier and annotations
- [`KT-15606`](https://youtrack.jetbrains.com/issue/KT-15606) Extract Interface/Pull Up: Warn about private members with usages in the original class
- [`KT-15635`](https://youtrack.jetbrains.com/issue/KT-15635) Extract Superclass/Interface: Fix bogus visibility warning inside a member when it's being moved as abstract
- [`KT-15598`](https://youtrack.jetbrains.com/issue/KT-15598) Extract Interface: Red-highlight members inherited from a super-interface when that interface reference itself is not extracted
- [`KT-15674`](https://youtrack.jetbrains.com/issue/KT-15674) Extract Superclass: Drop inapplicable modifiers when converting property-parameter to ordinary parameter
- [`KT-15444`](https://youtrack.jetbrains.com/issue/KT-15444) Spring Support: Consider declaration open if it's supplemented with a preconfigured annotation in corresponding compiler plugin

#### Intention actions, inspections and quickfixes

##### New features

- [`KT-15068`](https://youtrack.jetbrains.com/issue/KT-15068) Implement intention which rename file according to the top-level class name
- Implement quickfix which enables/disables coroutine support in module or project
- [`KT-15056`](https://youtrack.jetbrains.com/issue/KT-15056) Implement intention which converts object literal to class
- [`KT-8855`](https://youtrack.jetbrains.com/issue/KT-8855) Implement "Create label" quick fix
- [`KT-15627`](https://youtrack.jetbrains.com/issue/KT-15627) Support "Change parameter type" for parameters with type-mismatched default value

## 1.0.6

### IDE

- [`KT-13811`](https://youtrack.jetbrains.com/issue/KT-13811) Expose JVM target setting in IntelliJ IDEA plugin compiler configuration UI
- [`KT-12410`](https://youtrack.jetbrains.com/issue/KT-12410) Expose language version setting in IntelliJ IDEA plugin compiler configuration UI

#### Intention actions, inspections and quickfixes

- [`KT-14569`](https://youtrack.jetbrains.com/issue/KT-14569) Convert Property to Function Intention: Search occurrences using progress dialog
- [`KT-14501`](https://youtrack.jetbrains.com/issue/KT-14501) Create from Usage: Support array access expressions/binary expressions with type mismatch errors
- [`KT-14500`](https://youtrack.jetbrains.com/issue/KT-14500) Create from Usage: Suggest functional type based on the call with lambda argument and unresolved invoke()
- [`KT-14459`](https://youtrack.jetbrains.com/issue/KT-14459) Initialize with Constructor Parameter: Fix IDE freeze on properties in generic class
- [`KT-14044`](https://youtrack.jetbrains.com/issue/KT-14044) Fix exception on deleting unused declaration in IDEA 2016.3
- [`KT-14019`](https://youtrack.jetbrains.com/issue/KT-14019) Create from Usage: Support generation of abstract members for superclasses
- [`KT-14246`](https://youtrack.jetbrains.com/issue/KT-14246) Intentions: Convert function type parameter to receiver
- [`KT-14246`](https://youtrack.jetbrains.com/issue/KT-14246) Intentions: Convert function type receiver to parameter

##### New features

- [`KT-14729`](https://youtrack.jetbrains.com/issue/KT-14729) Implement "Add names to call arguments" intention
- [`KT-11760`](https://youtrack.jetbrains.com/issue/KT-11760) Create from Usage: Support adding type parameters to the referenced type

#### Refactorings

- [`KT-14583`](https://youtrack.jetbrains.com/issue/KT-14583) Change Signature: Use new signature when looking for redeclaration conflicts
- [`KT-14854`](https://youtrack.jetbrains.com/issue/KT-14854) Extract Interface: Fix NPE on dialog opening
- [`KT-14814`](https://youtrack.jetbrains.com/issue/KT-14814) Rename: Fix renaming of .kts file to .kt and vice versa
- [`KT-14361`](https://youtrack.jetbrains.com/issue/KT-14361) Rename: Do not report redeclaration conflict for private top-level declarations located in different files
- [`KT-14596`](https://youtrack.jetbrains.com/issue/KT-14596) Safe Delete: Fix exception on deleting Java class used in Kotlin import directive(s)
- [`KT-14325`](https://youtrack.jetbrains.com/issue/KT-14325) Rename: Fix exceptions on moving file with facade class to another package
- [`KT-14197`](https://youtrack.jetbrains.com/issue/KT-14197) Move: Fix callable reference processing when moving to another package
- [`KT-13781`](https://youtrack.jetbrains.com/issue/KT-13781) Extract Function: Do not wrap companion member references inside of the `with` call

##### New features
- [`KT-14792`](https://youtrack.jetbrains.com/issue/KT-14792) Rename: Suggest respective parameter name for the local variable passed to function

## 1.0.5

### IDE

- [`KT-9125`](https://youtrack.jetbrains.com/issue/KT-9125) Support Type Hierarchy on references inside of super type call entries
- [`KT-13542`](https://youtrack.jetbrains.com/issue/KT-13542) Rename: Do not search parameter text occurrences outside of its containing declaration
- [`KT-8672`](https://youtrack.jetbrains.com/issue/KT-8672) Rename: Optimize search of parameter references in calls with named arguments
- [`KT-9285`](https://youtrack.jetbrains.com/issue/KT-9285) Rename: Optimize search of private class members
- [`KT-13589`](https://youtrack.jetbrains.com/issue/KT-13589) Use TODO() consistently in implementation stubs
- [`KT-13630`](https://youtrack.jetbrains.com/issue/KT-13630) Do not show Change Signature dialog when applying "Remove parameter" quick-fix
- Re-highlight only single function after local modifications
- [`KT-13474`](https://youtrack.jetbrains.com/issue/KT-13474) Fix performance of typing super call lambda
- Show "Variables and values captured in a closure" highlighting only for usages
- [`KT-13838`](https://youtrack.jetbrains.com/issue/KT-13838) Add file name to the presentation of private top-level declaration (Go to symbol, etc.)
- [`KT-14096`](https://youtrack.jetbrains.com/issue/KT-14096) Rename: When renaming Kotlin file outside of source root do not rename its namesake in a source root
- [`KT-13928`](https://youtrack.jetbrains.com/issue/KT-13928) Move Inner Class to Upper Level: Fix replacement of outer class instances used in inner class constructor calls
- [`KT-12556`](https://youtrack.jetbrains.com/issue/KT-12556) Allow using whitespaces and other symbols in "Generate -> Test Function" dialog
- [`KT-14122`](https://youtrack.jetbrains.com/issue/KT-14122) Generate 'toString()': Permit for data classes
- [`KT-12398`](https://youtrack.jetbrains.com/issue/KT-12398) Call Hierarchy: Show Kotlin usages of Java methods
- [`KT-13976`](https://youtrack.jetbrains.com/issue/KT-13976) Search Everywhere: Render function parameter types
- [`KT-13977`](https://youtrack.jetbrains.com/issue/KT-13977) Search Everywhere: Render extension type in prefix position
- Implement Kotlin facet

#### Intention actions, inspections and quickfixes

- [`KT-9490`](https://youtrack.jetbrains.com/issue/KT-9490) Convert receiver to parameter: use template instead of the dialog
- [`KT-11483`](https://youtrack.jetbrains.com/issue/KT-11483) Move to Companion: Do not use qualified names as labels
- [`KT-13874`](https://youtrack.jetbrains.com/issue/KT-13874) Move to Companion: Fix AssertionError on running refactoring from Conflicts View
- [`KT-13883`](https://youtrack.jetbrains.com/issue/KT-13883) Move to Companion Object: Fix exception when applied to class
- [`KT-13876`](https://youtrack.jetbrains.com/issue/KT-13876) Move to Companion Object: Forbid for functions/properties referencing type parameters of the containing class
- [`KT-13877`](https://youtrack.jetbrains.com/issue/KT-13877) Move to Companion Object: Warn if companion object already contains function with the same signature
- [`KT-13933`](https://youtrack.jetbrains.com/issue/KT-13933) Convert Parameter to Receiver: Do not qualify companion members with labeled 'this'
- [`KT-13942`](https://youtrack.jetbrains.com/issue/KT-13942) Redundant 'toString()' in String Template: Disable for qualified expressions with 'super' receiver
- [`KT-13878`](https://youtrack.jetbrains.com/issue/KT-13878) Remove Redundant Receiver Parameter: Fix exception receiver removal
- [`KT-14143`](https://youtrack.jetbrains.com/issue/KT-14143) Create from Usages: Do not suggest on type-mismatched expressions which are not call arguments
- [`KT-13882`](https://youtrack.jetbrains.com/issue/KT-13882) Convert Receiver to Parameter: Fix AssertionError
- [`KT-14199`](https://youtrack.jetbrains.com/issue/KT-14199) Add Library: Fix exception due to resolution being run in the "dumb mode"
- Convert Receiver to Parameter: Fix this replacement

##### New features

- [`KT-11525`](https://youtrack.jetbrains.com/issue/KT-11525) Implement "Create type parameter" quickfix
- [`KT-9931`](https://youtrack.jetbrains.com/issue/KT-9931) Implement "Remove unused assignment" quickfix
- [`KT-14245`](https://youtrack.jetbrains.com/issue/KT-14245) Implement "Convert enum to sealed class" intention
- [`KT-14245`](https://youtrack.jetbrains.com/issue/KT-14245) Implement "Convert sealed class to enum" intention

#### Refactorings

- [`KT-13535`](https://youtrack.jetbrains.com/issue/KT-13535) Pull Up: Remove visibility modifiers on adding 'override'
- [`KT-13216`](https://youtrack.jetbrains.com/issue/KT-13216) Move: Report separate conflicts for each property accessor
- [`KT-13216`](https://youtrack.jetbrains.com/issue/KT-13216) Move: Forbid moving of enum entries
- [`KT-13553`](https://youtrack.jetbrains.com/issue/KT-13553) Move: Do not show directory selection dialog if target directory is already specified by drag-and-drop
- [`KT-8867`](https://youtrack.jetbrains.com/issue/KT-8867) Rename: Rename all overridden members if user chooses to refactor base declaration(s)
- Pull Up: Drop 'override' modifier if moved member doesn't override anything
- [`KT-13660`](https://youtrack.jetbrains.com/issue/KT-13660) Move: Do not drop object receivers when calling variable of extension functional type
- [`KT-13903`](https://youtrack.jetbrains.com/issue/KT-13903) Move: Remove companion object which becomes empty after the move
- [`KT-13916`](https://youtrack.jetbrains.com/issue/KT-13916) Move: Report visibility conflicts in import directives
- [`KT-13906`](https://youtrack.jetbrains.com/issue/KT-13906) Move Nested Class to Upper Level: Do not show directory selection dialog twice
- [`KT-13901`](https://youtrack.jetbrains.com/issue/KT-13901) Move: Do not ignore target directory selected in the dialog (DnD mode)
- [`KT-13904`](https://youtrack.jetbrains.com/issue/KT-13904) Move Nested Class to Upper Level: Preserve state of "Search in comments"/"Search for text occurrences" checkboxes
- [`KT-13909`](https://youtrack.jetbrains.com/issue/KT-13909) Move Files/Directories: Fix behavior of "Open moved files in editor" checkbox
- [`KT-14004`](https://youtrack.jetbrains.com/issue/KT-14004) Introduce Variable: Fix exception on trying to extract variable of functional type
- [`KT-13726`](https://youtrack.jetbrains.com/issue/KT-13726) Move: Fix bogus conflicts due to references resolving to wrong library version
- [`KT-14114`](https://youtrack.jetbrains.com/issue/KT-14114) Move: Fix exception on moving Kotlin file without declarations
- [`KT-14157`](https://youtrack.jetbrains.com/issue/KT-14157) Rename: Rename do-while loop variables in the loop condition
- [`KT-14128`](https://youtrack.jetbrains.com/issue/KT-14128), [`KT-13862`](https://youtrack.jetbrains.com/issue/KT-13862) Rename: Use qualified class name when looking for occurrences in non-code files
- [`KT-6199`](https://youtrack.jetbrains.com/issue/KT-6199) Rename: Replace non-code class occurrences with new qualified name
- [`KT-14182`](https://youtrack.jetbrains.com/issue/KT-14182) Move: Show error message on applying to enum entries
- Extract Function: Support implicit abnormal exits via Nothing-typed expressions
- [`KT-14285`](https://youtrack.jetbrains.com/issue/KT-14285) Rename: Forbid on backing field reference
- [`KT-14240`](https://youtrack.jetbrains.com/issue/KT-14240) Introduce Variable: Do not replace assignment left-hand sides
- [`KT-14234`](https://youtrack.jetbrains.com/issue/KT-14234) Rename: Do not suggest type-based names for functions with primitive return types

##### New features

- [`KT-13155`](https://youtrack.jetbrains.com/issue/KT-13155) Implement "Introduce Type Parameter" refactoring
- [`KT-11017`](https://youtrack.jetbrains.com/issue/KT-11017) Implement "Extract Superclass" refactoring
- [`KT-11017`](https://youtrack.jetbrains.com/issue/KT-11017) Implement "Extract Interface" refactoring
Pull Up: Support properties declared in the primary constructor
Pull Up: Support members declared in the companion object of the original class
Pull Up: Show member dependencies in the refactoring dialog
- [`KT-9485`](https://youtrack.jetbrains.com/issue/KT-9485) Push Down: Support moving members from Java to Kotlin class
- [`KT-13963`](https://youtrack.jetbrains.com/issue/KT-13963) Rename: Implement popup chooser for overriding members

#### Android Lint

###### Issues fixed

- [`KT-12022`](https://youtrack.jetbrains.com/issue/KT-12022) Report lint warnings even when file contains errors

## 1.0.4

### Compiler

#### Analysis & diagnostics

- [`KT-10968`](https://youtrack.jetbrains.com/issue/KT-10968), [`KT-11075`](https://youtrack.jetbrains.com/issue/KT-11075), [`KT-12286`](https://youtrack.jetbrains.com/issue/KT-12286) Type inference of callable references
- [`KT-11892`](https://youtrack.jetbrains.com/issue/KT-11892) Report error on qualified super call to a supertype extended by a different supertype
- [`KT-12875`](https://youtrack.jetbrains.com/issue/KT-12875) Report error on incorrect call of member extension invoke
- [`KT-12847`](https://youtrack.jetbrains.com/issue/KT-12847) Report error on accessing protected property setter from super class' companion
- [`KT-12322`](https://youtrack.jetbrains.com/issue/KT-12322) Overload resolution ambiguity with constructor reference when class has a companion object
- [`KT-11440`](https://youtrack.jetbrains.com/issue/KT-11440) Overload resolution ambiguity on specialized Map.put implementation from Java
- [`KT-11389`](https://youtrack.jetbrains.com/issue/KT-11389) Runtime exception when calling Java primitive overloadings
- [`KT-8200`](https://youtrack.jetbrains.com/issue/KT-8200) Exception when using non-generic interface with generic arguments
- [`KT-10237`](https://youtrack.jetbrains.com/issue/KT-10237) Exception on an unresolved symbol in a type parameter bound in the 'where' clause
- [`KT-11821`](https://youtrack.jetbrains.com/issue/KT-11821) Exception on incorrect number of generic arguments in a type parameter bound in the 'where' clause
- [`KT-12482`](https://youtrack.jetbrains.com/issue/KT-12482) Exception: Implementation doesn't have the most specific type, but none of the other overridden methods does either
- [`KT-12687`](https://youtrack.jetbrains.com/issue/KT-12687) Exception when 'data' modifier is applied to object
- [`KT-9620`](https://youtrack.jetbrains.com/issue/KT-9620) AssertionError in DescriptorResolver#checkBounds
- [`KT-3689`](https://youtrack.jetbrains.com/issue/KT-3689) IllegalAccess on a property with private setter of the subclass
- [`KT-6391`](https://youtrack.jetbrains.com/issue/KT-6391) Wrong warning for array casting (Array<Any?> to Array<Any>)
- [`KT-8596`](https://youtrack.jetbrains.com/issue/KT-8596) Exception when analyzing nested class constructor reference in an argument position
- [`KT-12982`](https://youtrack.jetbrains.com/issue/KT-12982) Incorrect type inference when accessing mutable protected property via reflection
- [`KT-13206`](https://youtrack.jetbrains.com/issue/KT-13206) Report "Cast never succeeds" if and only if ClassCastException can be predicted
- [`KT-12467`](https://youtrack.jetbrains.com/issue/KT-12467) IllegalStateException: Concrete fake override should have exactly one concrete super-declaration: []
- [`KT-13340`](https://youtrack.jetbrains.com/issue/KT-13340) Report "return is not allowed here" only on the return keyword, not the whole expression
- [`KT-2349`](https://youtrack.jetbrains.com/issue/KT-2349), [`KT-6054`](https://youtrack.jetbrains.com/issue/KT-6054) Report "uninitialized enum entry" if enum entry is referenced before its declaration
- [`KT-12809`](https://youtrack.jetbrains.com/issue/KT-12809) Report "uninitialized variable" if property is referenced before its declaration
- [`KT-260`](https://youtrack.jetbrains.com/issue/KT-260) Do not report "cast never succeeds" when casting nullable to nullable
- [`KT-11769`](https://youtrack.jetbrains.com/issue/KT-11769) Prohibit access from enum instance initialization code to members of enum's companion object
- [`KT-13371`](https://youtrack.jetbrains.com/issue/KT-13371) Fix CompilationException: Rewrite at slice LEAKING_THIS key: REFERENCE_EXPRESSION
- [`KT-13401`](https://youtrack.jetbrains.com/issue/KT-13401) Fix StackOverflowError when checking variance
- [`KT-13330`](https://youtrack.jetbrains.com/issue/KT-13330), [`KT-13349`](https://youtrack.jetbrains.com/issue/KT-13349) Fix AssertionError: Illegal resolved call to variable with invoke
- [`KT-13421`](https://youtrack.jetbrains.com/issue/KT-13421) Fix AssertionError: Only integer constants should be checked for overflow
- [`KT-13555`](https://youtrack.jetbrains.com/issue/KT-13555) Fix internal error "resolveToInstruction"
- [`KT-8989`](https://youtrack.jetbrains.com/issue/KT-8989) Change error messages: Replace "invisible_fake" with "invisible (private in a supertype)"
- [`KT-13612`](https://youtrack.jetbrains.com/issue/KT-13612) Val reassignment in try / catch
- [`KT-5469`](https://youtrack.jetbrains.com/issue/KT-5469) Incorrect "is never used" warning for value used in catch block
- [`KT-13510`](https://youtrack.jetbrains.com/issue/KT-13510) Missing "Nested class not allowed" error for anonymous object inside val initializer
- [`KT-13685`](https://youtrack.jetbrains.com/issue/KT-13685) Fix NPE when resolving callable references on incomplete code
- Change error messages: Fix quotes around keywords in diagnostic messages
- Change error messages: Remove quotes around visibilities

#### Parser

- [`KT-7118`](https://youtrack.jetbrains.com/issue/KT-7118) Improve error message after trailing dot in floating point literal
- [`KT-4948`](https://youtrack.jetbrains.com/issue/KT-4948) Recover by following keyword
- [`KT-7915`](https://youtrack.jetbrains.com/issue/KT-7915) Recover after val with no subsequent name
- [`KT-12987`](https://youtrack.jetbrains.com/issue/KT-12987) Recover after val with no name before declaration starting with soft keyword

#### JVM code generation

- [`KT-12909`](https://youtrack.jetbrains.com/issue/KT-12909) Do not generate redundant bridge for special built-in override
- [`KT-11915`](https://youtrack.jetbrains.com/issue/KT-11915) Exception in entrySet when Map implementation in Kotlin extends another one
- [`KT-12755`](https://youtrack.jetbrains.com/issue/KT-12755) Exception on property generation in multi-file classes
- [`KT-12983`](https://youtrack.jetbrains.com/issue/KT-12983) VerifyError: Bad type on operand stack in arraylength
- [`KT-12908`](https://youtrack.jetbrains.com/issue/KT-12908) Variable initialization in loop causes VerifyError: Bad local variable type
- [`KT-13040`](https://youtrack.jetbrains.com/issue/KT-13040) Invalid bytecode generated for extension lambda invocation with safe call
- [`KT-13023`](https://youtrack.jetbrains.com/issue/KT-13023) Char operations throw ClassCastException for boxed Chars
- [`KT-11634`](https://youtrack.jetbrains.com/issue/KT-11634) Exception for super call in delegation
- [`KT-12359`](https://youtrack.jetbrains.com/issue/KT-12359) Redundant stubs are generated on inheriting from java.util.Collection
- [`KT-11833`](https://youtrack.jetbrains.com/issue/KT-11833) Error generating constructors of class on anonymous object inheriting from nested class of super class
- [`KT-13133`](https://youtrack.jetbrains.com/issue/KT-13133) Incorrect InnerClasses attribute value for anonymous object copied from an inline function
- [`KT-13241`](https://youtrack.jetbrains.com/issue/KT-13241) Indices optimization leads to VerifyError with smart cast receiver
- [`KT-13374`](https://youtrack.jetbrains.com/issue/KT-13374) Fix compiler exception when inline function contains anonymous object implementing an interface by delegation

##### Generated code performance

- [`KT-11964`](https://youtrack.jetbrains.com/issue/KT-11964) No TABLESWITCH in when on enum bytecode if enum constant is imported
- [`KT-6916`](https://youtrack.jetbrains.com/issue/KT-6916) Optimize 'for' over 'downTo'
- [`KT-12733`](https://youtrack.jetbrains.com/issue/KT-12733) Optimize 'for' over 'rangeTo' as a non-qualified call

### Standard Library

- [`KT-13115`](https://youtrack.jetbrains.com/issue/KT-13115), [`KT-13297`](https://youtrack.jetbrains.com/issue/KT-13297) Improve documentation formatting, clarify documentation for `FileTreeWalk`, `Sequence` and `generateSequence`.
- [`KT-12894`](https://youtrack.jetbrains.com/issue/KT-12894) Do not fail in `Closeable.use` if the resource is `null`.

### Reflection

- [`KT-12915`](https://youtrack.jetbrains.com/issue/KT-12915) Runtime exception on callBy of JvmStatic function with default arguments
- [`KT-12967`](https://youtrack.jetbrains.com/issue/KT-12967) Runtime exception on reference to generic property
- [`KT-13370`](https://youtrack.jetbrains.com/issue/KT-13370) NullPointerException on companionObjectInstance of a built-in class
- [`KT-13462`](https://youtrack.jetbrains.com/issue/KT-13462) Make KClass for primitive type equal to the corresponding KClass for wrapper type

### IDE

- [`KT-12655`](https://youtrack.jetbrains.com/issue/KT-12655) New Kotlin file: extra error message for already existing file
- [`KT-12760`](https://youtrack.jetbrains.com/issue/KT-12760) Prohibit running non-Unit returning main function
- [`KT-12893`](https://youtrack.jetbrains.com/issue/KT-12893) Impossible to open Kotlin compiler settings
- [`KT-10433`](https://youtrack.jetbrains.com/issue/KT-10433) Copy-pasting reference to companion object member causes import dialog
- [`KT-12803`](https://youtrack.jetbrains.com/issue/KT-12803) Class is marked as unused when it is only used is in method reference
- [`KT-13084`](https://youtrack.jetbrains.com/issue/KT-13084) Run test method action executes all tests from same kotlin file
- [`KT-12718`](https://youtrack.jetbrains.com/issue/KT-12718) Deadlock due to index reentering
- [`KT-13114`](https://youtrack.jetbrains.com/issue/KT-13114) 'Unused declaration' option 'JUnit static methods' is always enabled
- [`KT-12997`](https://youtrack.jetbrains.com/issue/KT-12997) Override/Implement Members: Support "Copy JavaDoc" options for library classes
- [`KT-12887`](https://youtrack.jetbrains.com/issue/KT-12887) "Extend selection" should select call's invoked expression
- [`KT-13383`](https://youtrack.jetbrains.com/issue/KT-13383), [`KT-13379`](https://youtrack.jetbrains.com/issue/KT-13379) Override/Implement Members: Do not make return type non-nullable if base return type is explicitly nullable
- [`KT-13218`](https://youtrack.jetbrains.com/issue/KT-13218) Extract Function: Fix AssertionError on callable references
- [`KT-6520`](https://youtrack.jetbrains.com/issue/KT-6520) Introduce 'maino' and 'psvmo' templates for generating main in object
- [`KT-13455`](https://youtrack.jetbrains.com/issue/KT-13455) Override/Implement: Make return type non-nullable (platform collection case) when overriding Java method
- [`KT-10209`](https://youtrack.jetbrains.com/issue/KT-10209) Find Usages: Do not duplicate containing declaration in super member warning dialog
- [`KT-12977`](https://youtrack.jetbrains.com/issue/KT-12977) Hybrid dependency causes "outdated binary" warning to appear in non-js project
- [`KT-13057`](https://youtrack.jetbrains.com/issue/KT-13057) Go to inheritors on Enum should navigate to all enum classes
- Fix exception when choose Gradle configurer after project is synced
- Allow configuring Kotlin in Gradle module without Kotlin sources
- Show all Kotlin annotations when browsing hierarchy of "java.lang.Annotation"

#### Completion

- [`KT-12793`](https://youtrack.jetbrains.com/issue/KT-12793) Suggest abstract protected extension methods

#### Performance

- [`KT-12645`](https://youtrack.jetbrains.com/issue/KT-12645) Lazily calculate FQ name for local classes
- [`KT-13071`](https://youtrack.jetbrains.com/issue/KT-13071) Fix severe freezes because of long lint checks on large files

#### Highlighting

- [`KT-12937`](https://youtrack.jetbrains.com/issue/KT-12937) Java synthetic accessors highlighting does not differ from local variables

#### KDoc

- [`KT-12998`](https://youtrack.jetbrains.com/issue/KT-12998) Backslash is not rendered
- [`KT-12999`](https://youtrack.jetbrains.com/issue/KT-12999) Backtick inside inline code block is not rendered
- [`KT-13000`](https://youtrack.jetbrains.com/issue/KT-13000) Exclamation mark is not rendered
- [`KT-10398`](https://youtrack.jetbrains.com/issue/KT-10398) Fully qualified link is not resolved in editor
- [`KT-12932`](https://youtrack.jetbrains.com/issue/KT-12932) Link to library element is not clickable
- [`KT-10654`](https://youtrack.jetbrains.com/issue/KT-10654) Quick Doc can't follow KDoc link in referenced function description
- [`KT-9271`](https://youtrack.jetbrains.com/issue/KT-9271) Show Quick Doc for implicit lambda parameter 'it'

#### Formatter

- [`KT-12830`](https://youtrack.jetbrains.com/issue/KT-12830) Remove spaces before *?* in nullable types
- [`KT-13314`](https://youtrack.jetbrains.com/issue/KT-13314) Format spaces around !is and !in

#### Intention actions, inspections and quickfixes

##### New features

- [`KT-12152`](https://youtrack.jetbrains.com/issue/KT-12152) "Leaking this" inspection reports dangerous operations inside constructors including:

   * Accessing non-final property in constructor
   * Calling non-final function in constructor
   * Using 'this' as function argument in constructor of non-final class

- [`KT-13187`](https://youtrack.jetbrains.com/issue/KT-13187) "Make constructor parameter a val" should make the val private or public depending on its option
- [`KT-5771`](https://youtrack.jetbrains.com/issue/KT-5771) Mark setter parameter type as redundant and provide quickfix to remove it
- [`KT-9228`](https://youtrack.jetbrains.com/issue/KT-9228) Add quickfix to remove '@' from annotation used as argument of another annotation
- [`KT-12251`](https://youtrack.jetbrains.com/issue/KT-12251) Add quickfix to fix type mismatch for primitive literals
- [`KT-12838`](https://youtrack.jetbrains.com/issue/KT-12838) Add quickfix for "Illegal usage of inline parameter" that adds `noinline`
- [`KT-13134`](https://youtrack.jetbrains.com/issue/KT-13134) Add quickfix for wrong Long suffix (Use `L` instead of `l`)
- [`KT-10903`](https://youtrack.jetbrains.com/issue/KT-10903) Add intention to convert lambda to function reference
- [`KT-7492`](https://youtrack.jetbrains.com/issue/KT-7492) Support "Create abstract function/property" inside an abstract class
- [`KT-10668`](https://youtrack.jetbrains.com/issue/KT-10668) Support "Create member/extension" corresponding to the extension receiver of enclosing function
- [`KT-12553`](https://youtrack.jetbrains.com/issue/KT-12553) Show versions in inspection about different version of Kotlin plugin in Maven and IDE plugin
- [`KT-12489`](https://youtrack.jetbrains.com/issue/KT-12489) Implement intention to replace camel-case test function name with a space-separated one
- [`KT-12730`](https://youtrack.jetbrains.com/issue/KT-12730) Warn about using different versions of Kotlin Gradle plugin and bundled compiler
- [`KT-13173`](https://youtrack.jetbrains.com/issue/KT-13173) Handle more cases in "Add Const Modifier" Intention
- [`KT-12628`](https://youtrack.jetbrains.com/issue/KT-12628) Quickfix for `invoke` operator unsafe calls
- [`KT-11425`](https://youtrack.jetbrains.com/issue/KT-11425) Inspection and quickfix to replace usages of `equals()` and `compareTo()` with operators
- [`KT-13113`](https://youtrack.jetbrains.com/issue/KT-13113) Inspection to detect redundant string templates
- [`KT-13011`](https://youtrack.jetbrains.com/issue/KT-13011) Inspection and quickfix for unnecessary lateinit
- [`KT-10731`](https://youtrack.jetbrains.com/issue/KT-10731) Inspection and quickfix for unnecessary use of toString() inside string interpolation
- [`KT-12043`](https://youtrack.jetbrains.com/issue/KT-12043) Intention to add / remove braces for when entry/entries
- [`KT-13483`](https://youtrack.jetbrains.com/issue/KT-13483) Intention to replace `a..b-1` with `a until b` and vice versa
- [`KT-6975`](https://youtrack.jetbrains.com/issue/KT-6975) Quickfix for adding 'inline' to a function with reified generic

##### Bugfixes

- Show receiver type in the text of "Create extension" quick fix
- Show target class name in the text of "Create member" quick fix
- [`KT-12869`](https://youtrack.jetbrains.com/issue/KT-12869) Usages of overridden Java method through synthetic accessors are not found
- [`KT-12813`](https://youtrack.jetbrains.com/issue/KT-12813) "Find Usages" for property returns function calls
- [`KT-7722`](https://youtrack.jetbrains.com/issue/KT-7722) Approximate unresolvable types in "Create from Usage" quickfixes
- [`KT-11115`](https://youtrack.jetbrains.com/issue/KT-11115) Implement Members: Fix base member detection when abstract and non-abstract members with matching signatures are inherited from an interface
- [`KT-12876`](https://youtrack.jetbrains.com/issue/KT-12876) Bogus suggestion to move property to constructor
- [`KT-13055`](https://youtrack.jetbrains.com/issue/KT-13055) Exception in "Specify Type Explicitly" intention
- [`KT-12942`](https://youtrack.jetbrains.com/issue/KT-12942) "Replace 'when' with 'if'" intention changes semantics when 'if' statements are used
- [`KT-12646`](https://youtrack.jetbrains.com/issue/KT-12646) 'Convert to block body' should use partial body resolve
- [`KT-12919`](https://youtrack.jetbrains.com/issue/KT-12919) Use simple class name in "Change function return type" quickfix
- [`KT-13151`](https://youtrack.jetbrains.com/issue/KT-13151) Incorrect warning "Make variable immutable"
- [`KT-13170`](https://youtrack.jetbrains.com/issue/KT-13170) "Declaration has platform type" inspection: by default should not be reported for platform type arguments
- [`KT-13262`](https://youtrack.jetbrains.com/issue/KT-13262) "Wrap with safe let call" quickfix produces wrong result for qualified function
- [`KT-13364`](https://youtrack.jetbrains.com/issue/KT-13364) Do not suggest creating annotations/enum classes for unresolved type parameter bounds
- [`KT-12627`](https://youtrack.jetbrains.com/issue/KT-12627) Allow warnings suppression for secondary constructor
- [`KT-13365`](https://youtrack.jetbrains.com/issue/KT-13365) Disable "Create property" (non-abstract) in interfaces. Make "Create function" (non-abstract) generate function body in interfaces
- [`KT-8903`](https://youtrack.jetbrains.com/issue/KT-8903) Remove Unused Receiver: update function/property usages
- [`KT-11799`](https://youtrack.jetbrains.com/issue/KT-11799) Create from Usage: Make extension functions/properties 'private' by default
- [`KT-11795`](https://youtrack.jetbrains.com/issue/KT-11795) Create from Usage: Place extension properties after the usage and generate stub getter
- [`KT-12951`](https://youtrack.jetbrains.com/issue/KT-12951) Prohibit "Convert to expression body" when function body is 'if' without 'else' or 'when' is non-exhaustive
- [`KT-13430`](https://youtrack.jetbrains.com/issue/KT-13430) "Add non-null asserted (!!) call" quickfix can't process unary operators
- [`KT-13336`](https://youtrack.jetbrains.com/issue/KT-13336) "Convert concatenation to template" intention appends literal to variable omitting braces
- [`KT-13328`](https://youtrack.jetbrains.com/issue/KT-13328) Do not suggest "Replace infix with safe call" inside conditions or binary / unary expressions
- [`KT-13452`](https://youtrack.jetbrains.com/issue/KT-13452) "Replace if expression with assignment" doesn't work for cascade if-else if-else
- [`KT-13184`](https://youtrack.jetbrains.com/issue/KT-13184) "Different Kotlin Version" inspection: false positive caused by verbose plugin version name
- [`KT-13480`](https://youtrack.jetbrains.com/issue/KT-13480) "Can be replaced with comparison" inspection: false positive if extension method called 'equals' is used
- [`KT-13288`](https://youtrack.jetbrains.com/issue/KT-13288) "Unused property" inspection: false positive when extending abstract class and implementing interface
- [`KT-13432`](https://youtrack.jetbrains.com/issue/KT-13432) "Replace with safe call" quickfix does not work with `compareTo()` usage
- [`KT-13444`](https://youtrack.jetbrains.com/issue/KT-13444) "Invert if" intention changes semantics for nested if with return
- [`KT-13536`](https://youtrack.jetbrains.com/issue/KT-13536) Fix StackOverflowError from "Unused Symbol" inspection after importing enum's values()
- [`KT-12820`](https://youtrack.jetbrains.com/issue/KT-12820) Platform Type Inspection: !! quickfix shouldn't be available when any generic parameter has platform type
- [`KT-9825`](https://youtrack.jetbrains.com/issue/KT-9825) Incorrect "unused variable" warning when used in finally block
- [`KT-13715`](https://youtrack.jetbrains.com/issue/KT-13715) Prohibit applying "Change to star projection" to functional types

#### Refactorings

##### New features

- [`KT-12017`](https://youtrack.jetbrains.com/issue/KT-12017) Inline Property: Support "Do not show this dialog" and "Inline this occurrence" options

##### Bugfixes

- [`KT-11176`](https://youtrack.jetbrains.com/issue/KT-11176) Add a space before '{' in functions generated "Generate hashCode/equals/toString"
- [`KT-12294`](https://youtrack.jetbrains.com/issue/KT-12294) Introduce Property: Fix extraction of expressions referring to primary constructor parameters
- [`KT-12413`](https://youtrack.jetbrains.com/issue/KT-12413) Change Signature: Fix bogus warning about unresolved type parameters/invalid functional type replacement
- [`KT-12084`](https://youtrack.jetbrains.com/issue/KT-12084) Introduce Property: Do not skip outer classes if extractable expression is contained in object literal
- [`KT-13082`](https://youtrack.jetbrains.com/issue/KT-13082) Rename: Fix exception on property rename preview
- [`KT-13207`](https://youtrack.jetbrains.com/issue/KT-13207) Safe delete: Fix exception when removing any function in 2016.2
- [`KT-12945`](https://youtrack.jetbrains.com/issue/KT-12945) Rename: Fix function description in super method warning dialog
- [`KT-12922`](https://youtrack.jetbrains.com/issue/KT-12922) Introduce Variable: Do not suggest expressions without type
- [`KT-12943`](https://youtrack.jetbrains.com/issue/KT-12943) Rename: Show function signatures in "Rename Overloads" dialog
- [`KT-13157`](https://youtrack.jetbrains.com/issue/KT-13157) Extract Function: Automatically quote function name if necessary
- [`KT-13010`](https://youtrack.jetbrains.com/issue/KT-13010) Extract Function: Fix generation of destructuring declarations
- [`KT-13128`](https://youtrack.jetbrains.com/issue/KT-13128) Introduce Variable: Retain entered name after changing "Specify type explicitly" option
- [`KT-13054`](https://youtrack.jetbrains.com/issue/KT-13054) Introduce Variable: Skip leading/trailing comments inside selection
- [`KT-13385`](https://youtrack.jetbrains.com/issue/KT-13385) Move: Quote package name (if necessary) when moving declarations to new file
- [`KT-13395`](https://youtrack.jetbrains.com/issue/KT-13395) Introduce Property: Fix duplicate count in popup window
- [`KT-13277`](https://youtrack.jetbrains.com/issue/KT-13277) Change Signature: Fix usage processing to prevent interfering with Python support plugin
- [`KT-13254`](https://youtrack.jetbrains.com/issue/KT-13254) Rename: Conflict detection for type parameters
- [`KT-13282`](https://youtrack.jetbrains.com/issue/KT-13282), [`KT-13283`](https://youtrack.jetbrains.com/issue/KT-13283) Rename: Fix name quoting for automatic renamers
- [`KT-13239`](https://youtrack.jetbrains.com/issue/KT-13239) Rename: Warn about function name conflicts
- [`KT-13174`](https://youtrack.jetbrains.com/issue/KT-13174) Move: Warn about accessibility conflicts due to moving to unrelated module
- [`KT-13175`](https://youtrack.jetbrains.com/issue/KT-13175) Move: Warn about accessibility conflicts when moving entire file
- [`KT-13240`](https://youtrack.jetbrains.com/issue/KT-13240) Rename: Do not report shadowing conflict if redeclaration is detected
- [`KT-13253`](https://youtrack.jetbrains.com/issue/KT-13253) Rename: Report conflicts for constructor parameters
- [`KT-12971`](https://youtrack.jetbrains.com/issue/KT-12971) Push Down: Do not specifiy visibility on generated overriding members
- [`KT-13124`](https://youtrack.jetbrains.com/issue/KT-13124) Pull Up: Skip super members without explicit declarations
- [`KT-13032`](https://youtrack.jetbrains.com/issue/KT-13032) Rename: Support accessors with non-conventional names
- [`KT-13463`](https://youtrack.jetbrains.com/issue/KT-13463) Rename: Quote parameter name when necessary
- [`KT-13476`](https://youtrack.jetbrains.com/issue/KT-13476) Rename: Fix parameter rename when new name matches call selector
- [`KT-9381`](https://youtrack.jetbrains.com/issue/KT-9381) Rename: Do not search for component convention usages
- [`KT-13488`](https://youtrack.jetbrains.com/issue/KT-13488) Rename: Support rename of packages with non-standard quoted names

#### Debugger

##### New features

- [`KT-7549`](https://youtrack.jetbrains.com/issue/KT-7549) Provide an option to use the Kotlin syntax when evaluating watches and expressions in Java files

##### Bugfixes

- [`KT-13059`](https://youtrack.jetbrains.com/issue/KT-13059) Fix error stepping on *Step Over* action in the end of while block
- [`KT-13037`](https://youtrack.jetbrains.com/issue/KT-13037) Fix possible deadlock in debugger in 2016.1 and exception in 2016.2
- [`KT-12651`](https://youtrack.jetbrains.com/issue/KT-12651) Fix exception in evaluate expression when bad identifier is used for marking object
- [`KT-12896`](https://youtrack.jetbrains.com/issue/KT-12896) Fix "Step In" to inline functions for Android
- [`KT-13269`](https://youtrack.jetbrains.com/issue/KT-13269) Make quick evaluate work on receiver in qualified expressions
- [`KT-12641`](https://youtrack.jetbrains.com/issue/KT-12641) Unknown error on evaluate expression containing inline functions with complicated environment
- [`KT-13163`](https://youtrack.jetbrains.com/issue/KT-13163) Fix exception when evaluating expression: Access is allowed from event dispatch thread only.

### JS

#### New features

- [`KT-3008`](https://youtrack.jetbrains.com/issue/KT-3008) Option to generate require.js and AMD compatible modules
- [`KT-5987`](https://youtrack.jetbrains.com/issue/KT-5987) Add ability to refer to class
- [`KT-4115`](https://youtrack.jetbrains.com/issue/KT-4115) Provide method to get Kotlin type name

#### Bugfixes

- [`KT-8003`](https://youtrack.jetbrains.com/issue/KT-8003) Compiler exception on 'throw throw'
- [`KT-8318`](https://youtrack.jetbrains.com/issue/KT-8318) Wrong result for 'when' containing only 'else' block
- [`KT-12157`](https://youtrack.jetbrains.com/issue/KT-12157) Compiler exception on `when` condition containing `return`, `break` or `continue`
- [`KT-12275`](https://youtrack.jetbrains.com/issue/KT-12275) Fix code generation with inline function call in condition of `while`/`do..while`
- [`KT-13160`](https://youtrack.jetbrains.com/issue/KT-13160) Fix compiler exception when left-hand side of assignment is array access and right-hand side is inline function
- [`KT-12864`](https://youtrack.jetbrains.com/issue/KT-12864) Make enums comparable
- [`KT-12865`](https://youtrack.jetbrains.com/issue/KT-12865) Implementing Comparable breaks inheritance
- [`KT-12928`](https://youtrack.jetbrains.com/issue/KT-12928) Nested inline causes undefined reference access
- [`KT-12929`](https://youtrack.jetbrains.com/issue/KT-12929) Code with callable reference crashed at runtime (in some JS VMs)
- [`KT-13043`](https://youtrack.jetbrains.com/issue/KT-13043) Invalid invocation generated for secondary constructor that calls constructor from base class with default parameters
- [`KT-13025`](https://youtrack.jetbrains.com/issue/KT-13025) 'function?.invoke' does not work properly with extension functions
- [`KT-12807`](https://youtrack.jetbrains.com/issue/KT-12807) Lambda was lost in generated code
- [`KT-12808`](https://youtrack.jetbrains.com/issue/KT-12808) Compiler duplicates arguments and the body of lambda when lambda is in RHS of assignment operator
- [`KT-12873`](https://youtrack.jetbrains.com/issue/KT-12873) Fix ReferenceError when class delegates to complex expression
- [`KT-13658`](https://youtrack.jetbrains.com/issue/KT-13658) Wrong code when capturing object


### Tools

#### Gradle

- Gradle versions < 2.0 are not supported
- [`KT-13234`](https://youtrack.jetbrains.com/issue/KT-13234) Setting kotlinOptions.destination and kotlinOptions.classpath is deprecated
- [`KT-9392`](https://youtrack.jetbrains.com/issue/KT-9392) Kotlin classes are missing after converting Java class to Kotlin
- [`KT-12736`](https://youtrack.jetbrains.com/issue/KT-12736) Kotlin classes are deleted when generated Java source is changed
- [`KT-12658`](https://youtrack.jetbrains.com/issue/KT-12658) Build fails after android resources are edited
- [`KT-12750`](https://youtrack.jetbrains.com/issue/KT-12750) Non clean compilation fails with gradle 2.14
- [`KT-12912`](https://youtrack.jetbrains.com/issue/KT-12912) New class from subproject is unresolved with subsequent build with Gradle Daemon
- [`KT-12962`](https://youtrack.jetbrains.com/issue/KT-12962) Incremental compilation: Track changes in generated files
- [`KT-12923`](https://youtrack.jetbrains.com/issue/KT-12923) Incremental compilation: Compile error when code using internal class is modified
- [`KT-13528`](https://youtrack.jetbrains.com/issue/KT-13528) Incremental compilation: support multi-project incremental compilation
- [`KT-13732`](https://youtrack.jetbrains.com/issue/KT-13732) Android Build folder littered with `copyFlavourTypeXXX`

#### KAPT

##### New features

- [`KT-13499`](https://youtrack.jetbrains.com/issue/KT-13499) Implement Annotation Processing API (JSR 269) natively in Kotlin

##### Bugfixes

- [`KT-12776`](https://youtrack.jetbrains.com/issue/KT-12776) Android build fails with KAPT and generateStubs depending on library module names
- [`KT-13179`](https://youtrack.jetbrains.com/issue/KT-13179) Java is recompiled every time with Gradle 2.14 and KAPT
- [`KT-12303`](https://youtrack.jetbrains.com/issue/KT-12303), [`KT-12113`](https://youtrack.jetbrains.com/issue/KT-12113) Do not pass non-relevant annotations to processors

#### REPL

- [`KT-12389`](https://youtrack.jetbrains.com/issue/KT-12389) REPL just quits when toString() of user class throws an exception

#### CLI & Ant

- [`KT-13237`](https://youtrack.jetbrains.com/issue/KT-13237) Include kotlin-reflect.jar to classpath by default, add '-no-reflect' key to suppress this behavior

#### CLI

- [`KT-13491`](https://youtrack.jetbrains.com/issue/KT-13491) Support '-no-reflect' in 'kotlin' command

#### Maven

- [`KT-13211`](https://youtrack.jetbrains.com/issue/KT-13211) Provide better compilation failure info for TeamCity builds

#### Compiler daemon

- Fix exception "java.lang.NoClassDefFoundError: Could not initialize class kotlin.Unit"

## 1.0.3

### Compiler

#### Analysis & diagnostics

- Combination of `open` and `override` is no longer a warning
- [`KT-4829`](https://youtrack.jetbrains.com/issue/KT-4829) Equal conditions in `when` is now a warning
- [`KT-6611`](https://youtrack.jetbrains.com/issue/KT-6611) "This cast can never succeed" warning is no longer reported for `Foo<T> as Foo<Any>`
- [`KT-7174`](https://youtrack.jetbrains.com/issue/KT-7174) Declaring members with the same signature as non-overridable methods from Java classes (like Object.wait/notify) is now an error (when targeting JVM)
- [`KT-12302`](https://youtrack.jetbrains.com/issue/KT-12302) `abstract` modifier for a member of interface is no longer a warning
- [`KT-12452`](https://youtrack.jetbrains.com/issue/KT-12452) `open` modifier for a member of interface without implementation is now a warning
- [`KT-11111`](https://youtrack.jetbrains.com/issue/KT-11111) Overriding by inline function is now a warning, overriding by a function with reified type parameter is an error
- [`KT-12337`](https://youtrack.jetbrains.com/issue/KT-12337) Reference to a property with invisible setter now has KProperty type (as opposed to KMutableProperty)

###### Issues fixed

- [`KT-4285`](https://youtrack.jetbrains.com/issue/KT-4285) No warning for a non-tail call when the method inherits default arguments from superclass
- [`KT-4764`](https://youtrack.jetbrains.com/issue/KT-4764) Spurious "Variable must be initialized" in try/catch/finally
- [`KT-6665`](https://youtrack.jetbrains.com/issue/KT-6665) Unresolved reference leads to marking subsequent code unreachable
- [`KT-11750`](https://youtrack.jetbrains.com/issue/KT-11750) Exceptions when creating various entries with the name "name" in enums
- [`KT-11998`](https://youtrack.jetbrains.com/issue/KT-11998) Smart cast to not-null is not performed on a boolean property in `if` condition
- [`KT-10648`](https://youtrack.jetbrains.com/issue/KT-10648) Exhaustiveness check does not work when sealed class hierarchy contains intermediate sealed classes
- [`KT-10717`](https://youtrack.jetbrains.com/issue/KT-10717) Type inference for lambda with local return
- [`KT-11266`](https://youtrack.jetbrains.com/issue/KT-11266) Fixed "Empty intersection of types" internal compiler error for some cases
- [`KT-11857`](https://youtrack.jetbrains.com/issue/KT-11857) Fix visibility check for dynamic members within protected method (when targeting JS)
- [`KT-12589`](https://youtrack.jetbrains.com/issue/KT-12589) Improved "`infix` modifier is inapplicable" diagnostic message
- [`KT-11679`](https://youtrack.jetbrains.com/issue/KT-11679) Erroneous call with argument causes Throwable at ResolvedCallImpl.getArgumentMapping()
- [`KT-12623`](https://youtrack.jetbrains.com/issue/KT-12623) Fix ISE on malformed code

#### JVM code generation

- [`KT-5075`](https://youtrack.jetbrains.com/issue/KT-5075) Optimize array/collection indices usage in `for` loop
- [`KT-11116`](https://youtrack.jetbrains.com/issue/KT-11116) Optimize coercion to Unit, POP operations are backward-propagated

###### Issues fixed
- [`KT-11499`](https://youtrack.jetbrains.com/issue/KT-11499) Compiler crashes with "Incompatible stack heights"
- [`KT-11943`](https://youtrack.jetbrains.com/issue/KT-11943) CompilationException with extension property of KClass
- [`KT-12125`](https://youtrack.jetbrains.com/issue/KT-12125) Wrong increment/decrement on Byte/Char/Short.MAX_VALUE/MIN_VALUE
- [`KT-12192`](https://youtrack.jetbrains.com/issue/KT-12192) Exhaustiveness check isn't generated for when expression returning Unit
- [`KT-12200`](https://youtrack.jetbrains.com/issue/KT-12200) Erroneously optimized away assignment to a property initialized to zero
- [`KT-12582`](https://youtrack.jetbrains.com/issue/KT-12582) "VerifyError: Bad local variable type" caused by explicit loop variable type
- [`KT-12708`](https://youtrack.jetbrains.com/issue/KT-12708) Bridge method not generated when data class implements interface with copy() method
- [`KT-12106`](https://youtrack.jetbrains.com/issue/KT-12106) import static of reified companion object method throws IllegalAccessError

#### Performance

- Reduced number of IO operation when loading kotlin compiled classes

#### Сompiler options

- Allow to specify version of Kotlin language for source compatibility with older releases.
    - CLI: `-language-version` command line option
    - Maven: `languageVersion` configuration parameter, linked with `kotlin.compiler.languageVersion` property
    - Gradle: `kotlinOptions.languageVersion` property in task configuration
- Allow to specify which java runtime target version to generate bytecode for.
    - CLI: `-jvm-target` command line option
    - Maven: `jvmTarget` configuration parameter, linked with `kotlin.compiler.jvmTarget` property
    - Gradle: `kotlinOptions.jvmTarget` property in task configuration
- Allow to specify path to JDK to resolve classes from.
    - CLI: `-jdk-home` command line option
    - Maven: `jdkHome` configuration parameter, linked with `kotlin.compiler.jdkHome` property
    - Gradle: `kotlinOptions.jdkHome` property in task configuration

### Standard Library

- Improve documentation (including [`KT-11632`](https://youtrack.jetbrains.com/issue/KT-11632))
- List iteration used in collection operations is performed with an indexed loop when the list supports `RandomAccess` and the operation isn't inlined

### IDE

#### Completion

###### New features

- Smart completion after `by` and `in`
- Improved completion in bodies of overridden members (when no type is specified)
- Improved presentation of completion items for property accessors
- Fixed keyword completion after `try` in assignment expression
- [`KT-8527`](https://youtrack.jetbrains.com/issue/KT-8527) Include non-imported declarations on the first completion
- [`KT-12068`](https://youtrack.jetbrains.com/issue/KT-12068) Special completion item for "[]" get-operator access
- [`KT-12080`](https://youtrack.jetbrains.com/issue/KT-12080) Parameter names are now higher up in completion list

###### Issues fixed
- Fixed enum members being present in completion as static members
- Fixed QuickDoc not working for properties generated for java classes
- [`KT-9166`](https://youtrack.jetbrains.com/issue/KT-9166) Code completion does not work for synthetic java properties on typing "g"
- [`KT-11609`](https://youtrack.jetbrains.com/issue/KT-11609) No named arguments completion should be after dot
- [`KT-11633`](https://youtrack.jetbrains.com/issue/KT-11633) Wrong indentation after completing a statement in data class
- [`KT-11680`](https://youtrack.jetbrains.com/issue/KT-11680) Code completion of label for existing return with value inserts redundant whitespace
- [`KT-11784`](https://youtrack.jetbrains.com/issue/KT-11784) Completion for `if` statement should add parentheses automatically
- [`KT-11890`](https://youtrack.jetbrains.com/issue/KT-11890) Completion for callable references does not propose static Java members
- [`KT-11912`](https://youtrack.jetbrains.com/issue/KT-11912) String interpolation is not converted to ${} form when accessing this.property
- [`KT-11957`](https://youtrack.jetbrains.com/issue/KT-11957) No `catch` and `finally` keywords in completion
- [`KT-12103`](https://youtrack.jetbrains.com/issue/KT-12103) Smart completion for nested SAM-adapter produces short unresolved name
- [`KT-12138`](https://youtrack.jetbrains.com/issue/KT-12138) Do not show "::error" in smart completion when any function type accepting one argument is expected
- [`KT-12150`](https://youtrack.jetbrains.com/issue/KT-12150) Smart completion suggests to compare non-nullable with null
- [`KT-12124`](https://youtrack.jetbrains.com/issue/KT-12124) No code completion for a java property in a specific position
- [`KT-12299`](https://youtrack.jetbrains.com/issue/KT-12299) Completion: incorrect priority of property foo over method getFoo in Kotlin-only code
- [`KT-12328`](https://youtrack.jetbrains.com/issue/KT-12328) Qualified function name inserted when typing before `if`
- [`KT-12427`](https://youtrack.jetbrains.com/issue/KT-12427) Completion doesn't work for "@receiver:" annotation target
- [`KT-12447`](https://youtrack.jetbrains.com/issue/KT-12447) Don't use CompletionProgressIndicator in Kotlin plugin
- [`KT-12669`](https://youtrack.jetbrains.com/issue/KT-12669) Completion should show variant with `()` when there is default lambda
- [`KT-12369`](https://youtrack.jetbrains.com/issue/KT-12369) Pressing dot after class name should not cause insertion of constructor call

#### Spring support

###### New features

- [`KT-11692`](https://youtrack.jetbrains.com/issue/KT-11692) Support Spring model diagrams for Kotlin classes
- [`KT-12079`](https://youtrack.jetbrains.com/issue/KT-12079) Support "Autowired members defined in invalid Spring bean" inspection on Kotlin declarations
- [`KT-12092`](https://youtrack.jetbrains.com/issue/KT-12092) Implement bean references in @Qualifier annotations
- [`KT-12135`](https://youtrack.jetbrains.com/issue/KT-12135) Automatically configure components based on `basePackageClasses` attribute of @ComponentScan
- [`KT-12136`](https://youtrack.jetbrains.com/issue/KT-12136) Implement package references inside of string literals
- [`KT-12139`](https://youtrack.jetbrains.com/issue/KT-12139) Support Spring configurations linked via @Import annotation
- [`KT-12278`](https://youtrack.jetbrains.com/issue/KT-12278) Implement Spring @Autowired inspection
- [`KT-12465`](https://youtrack.jetbrains.com/issue/KT-12465) Implement Spring @ComponentScan inspection

###### Issues fixed

- [`KT-12091`](https://youtrack.jetbrains.com/issue/KT-12091) Fixed unstable behavior of Spring line markers
- [`KT-12096`](https://youtrack.jetbrains.com/issue/KT-12096) Fixed rename of custom-named beans specified with Kotlin annotation
- [`KT-12117`](https://youtrack.jetbrains.com/issue/KT-12117) Group Kotlin classes from the same file in the Choose Bean dialog
- [`KT-12120`](https://youtrack.jetbrains.com/issue/KT-12120) Show autowiring candidates line markers for @Autowired-annotated constructors and constructor parameters
- [`KT-12122`](https://youtrack.jetbrains.com/issue/KT-12122) Fixed line marker popup on functions with @Qualifier-annotated parameters
- [`KT-12143`](https://youtrack.jetbrains.com/issue/KT-12143) Fixed "Spring Facet Code Configuration (Kotlin)" inspection description
- [`KT-12147`](https://youtrack.jetbrains.com/issue/KT-12147) Fixed exception on analyzing object declaration with @Component annotation
- [`KT-12148`](https://youtrack.jetbrains.com/issue/KT-12148) Warn about object declarations annotated with Spring `@Configuration`/`@Component`/etc.
- [`KT-12363`](https://youtrack.jetbrains.com/issue/KT-12363) Fixed "Autowired members defined in invalid Spring bean (Kotlin)" inspection description
- [`KT-12366`](https://youtrack.jetbrains.com/issue/KT-12366) Fixed exception on analyzing class declaration upon annotation typing
- [`KT-12384`](https://youtrack.jetbrains.com/issue/KT-12384) Fixed bean references in factory method calls

#### Intention actions, inspections and quickfixes

###### New features

- New icon for "New -> Kotlin Activity" action
- "Change visibility on exposure" and "Make visible" fixes now support all possible visibilities
- [`KT-8477`](https://youtrack.jetbrains.com/issue/KT-8477) New inspection "Can be primary constructor property" with quick-fix
- [`KT-5010`](https://youtrack.jetbrains.com/issue/KT-5010) "Redundant semicolon" inspection with quickfix
- [`KT-9757`](https://youtrack.jetbrains.com/issue/KT-9757) Quickfix for "Unused lambda expression" warning
- [`KT-10844`](https://youtrack.jetbrains.com/issue/KT-10844) Quick fix to add crossinline modifier
- [`KT-11090`](https://youtrack.jetbrains.com/issue/KT-11090) "Add variance modifiers to type parameters" inspection
- [`KT-11255`](https://youtrack.jetbrains.com/issue/KT-11255) Move Element Left/Right actions
- [`KT-11450`](https://youtrack.jetbrains.com/issue/KT-11450) "Modality is redundant" inspection
- [`KT-11523`](https://youtrack.jetbrains.com/issue/KT-11523) "Add @JvmOverloads annotation" intention
- [`KT-11768`](https://youtrack.jetbrains.com/issue/KT-11768) "Introduce local variable" intention
- [`KT-11806`](https://youtrack.jetbrains.com/issue/KT-11806) Quick-fix to increase visibility for invisible member
- [`KT-11807`](https://youtrack.jetbrains.com/issue/KT-11807) Use function body template when generating overriding functions with default body
- [`KT-11864`](https://youtrack.jetbrains.com/issue/KT-11864) Suggest "Create function/secondary constructor" quick fix on argument type mismatch
- [`KT-11876`](https://youtrack.jetbrains.com/issue/KT-11876) Quickfix for "Extension function type is not allowed as supertype" error
- [`KT-11920`](https://youtrack.jetbrains.com/issue/KT-11920) "Increase visibility" and "Decrease visibility" quickfixes for exposed visibility errors
- [`KT-12089`](https://youtrack.jetbrains.com/issue/KT-12089) Quickfix "Make primary constructor parameter a property"
- [`KT-12121`](https://youtrack.jetbrains.com/issue/KT-12121) "Add `toString()` call" quickfix
- [`KT-11104`](https://youtrack.jetbrains.com/issue/KT-11104) New quickfixes for nullability problems: "Surround with null check" and "Wrap with safe let call"
- [`KT-12310`](https://youtrack.jetbrains.com/issue/KT-12310) New inspection "Member has platform type" with quickfix

###### Issues fixed

- Fixed "Convert property initializer getter" intention being available inside lambda initializer
- Improved message for "Can be declared as `val`" inspection
- [`KT-3797`](https://youtrack.jetbrains.com/issue/KT-3797) Quickfix to make a function abstract should not be offered for object members
- [`KT-11866`](https://youtrack.jetbrains.com/issue/KT-11866) Suggest "Create secondary constructor" when constructors exist but are not applicable
- [`KT-11482`](https://youtrack.jetbrains.com/issue/KT-11482) Fixed exception in "Move to companion object" intention
- [`KT-11483`](https://youtrack.jetbrains.com/issue/KT-11483) Pass implicit receiver as argument when moving member function to companion object
- [`KT-11512`](https://youtrack.jetbrains.com/issue/KT-11512) Allow choosing any source root in "Move file to directory" intention
- [`KT-10950`](https://youtrack.jetbrains.com/issue/KT-10950) Keep original file package name when moving top-level declarations to separate file (provided it's not ambiguous)
- [`KT-10174`](https://youtrack.jetbrains.com/issue/KT-10174) Optimize imports after applying "Move declaration to separate file" intention
- [`KT-11764`](https://youtrack.jetbrains.com/issue/KT-11764) Intention "Replace with a `forEach` function call should replace `continue` with `return@forEach`
- [`KT-11724`](https://youtrack.jetbrains.com/issue/KT-11724) False suggestion to replace with compound assignment
- [`KT-11805`](https://youtrack.jetbrains.com/issue/KT-11805) Invert if-condition intention breaks code in case of end of line comment
- [`KT-11811`](https://youtrack.jetbrains.com/issue/KT-11811) "Make protected" intention for a val declared in parameters of constructor
- [`KT-11710`](https://youtrack.jetbrains.com/issue/KT-11710) "Replace `if` with elvis operator": incorrect code generated for `if` expression
- [`KT-11849`](https://youtrack.jetbrains.com/issue/KT-11849) Replace explicit parameter with `it` changes the meaning of code because of the shadowing
- [`KT-11870`](https://youtrack.jetbrains.com/issue/KT-11870) "Replace with Elvis" refactoring doesn't change the variable type from T? to T
- [`KT-12069`](https://youtrack.jetbrains.com/issue/KT-12069) Specify language for all Kotlin code inspections
- [`KT-11366`](https://youtrack.jetbrains.com/issue/KT-11366) "object `Companion` is never used" warning in intellij
- [`KT-11275`](https://youtrack.jetbrains.com/issue/KT-11275) Inconsistent behaviour of "move lambda argument out of parentheses" intention action when using lambda calls with function arguments without parentheses
- [`KT-11594`](https://youtrack.jetbrains.com/issue/KT-11594) "Add non-null asserted (!!) call" applied to unsafe cast to nullable type causes AE at KtPsiFactory.createExpression()
- [`KT-11982`](https://youtrack.jetbrains.com/issue/KT-11982) False "Redundant final modifier" reported
- [`KT-12040`](https://youtrack.jetbrains.com/issue/KT-12040) "Replace when with if" produce invalid code for first entry which has comment
- [`KT-12204`](https://youtrack.jetbrains.com/issue/KT-12204) "Use classpath of module" option in existing Kotlin run configuration may be changed when a new run configuration is created
- [`KT-10635`](https://youtrack.jetbrains.com/issue/KT-10635) Don't mark private writeObject and readObject methods of Serializable classes as unused
- [`KT-11466`](https://youtrack.jetbrains.com/issue/KT-11466) "Make abstract" quick fix applies to outer class of object with accidentally abstract function
- [`KT-11120`](https://youtrack.jetbrains.com/issue/KT-11120) Constructor parameter/field reported as unused symbol even if it have `used` annotation
- [`KT-11974`](https://youtrack.jetbrains.com/issue/KT-11974) Invert if-condition intention loses comments
- [`KT-10812`](https://youtrack.jetbrains.com/issue/KT-10812) Globally unused constructors are not marked as such
- [`KT-11320`](https://youtrack.jetbrains.com/issue/KT-11320) Don't mark @BeforeClass (JUnit4) annotated functions as unused
- [`KT-12267`](https://youtrack.jetbrains.com/issue/KT-12267) "Change type" quick fix converts to Int for Long literal
- [`KT-11949`](https://youtrack.jetbrains.com/issue/KT-11949) Various problems fixed with "Constructor parameter is never used as a property" inspection
- [`KT-11716`](https://youtrack.jetbrains.com/issue/KT-11716) "Simply `for` using destructuring declaration" intention: incorrect behavior for data classes
- [`KT-12145`](https://youtrack.jetbrains.com/issue/KT-12145) "Simplify `for` using destructuring declaration" should work even when no variables declared inside loop
- [`KT-11933`](https://youtrack.jetbrains.com/issue/KT-11933) Entities used only by alias are marked as unused
- [`KT-12193`](https://youtrack.jetbrains.com/issue/KT-12193) Convert to block body isn't equivalent for when expressions returning Unit
- [`KT-10779`](https://youtrack.jetbrains.com/issue/KT-10779) Simplify `for` using destructing declaration: intention / inspection quick fix is available only when all variables are used
- [`KT-11281`](https://youtrack.jetbrains.com/issue/KT-11281) Fix exception on applying "Convert to class" intention to Java interface with Kotlin inheritor(s)
- [`KT-12285`](https://youtrack.jetbrains.com/issue/KT-12285) Fix exception on test class generation
- [`KT-12502`](https://youtrack.jetbrains.com/issue/KT-12502) Convert to expression body should be forbidden for non-exhaustive when returning Unit
- [`KT-12260`](https://youtrack.jetbrains.com/issue/KT-12260) ISE while replacing an operator with safe call
- [`KT-12649`](https://youtrack.jetbrains.com/issue/KT-12649) "Convert if to when" intention incorrectly deletes code
- [`KT-12671`](https://youtrack.jetbrains.com/issue/KT-12671) "Shot type" action: "Type is unknown" error on an invoked expression
- [`KT-12284`](https://youtrack.jetbrains.com/issue/KT-12284) Too wide applicability range for "Add braces to else" intention
- [`KT-11975`](https://youtrack.jetbrains.com/issue/KT-11975) "Invert if-condition" intention does not simplify `is` expression
- [`KT-12437`](https://youtrack.jetbrains.com/issue/KT-12437) "Replace explicit parameter" intention is suggested for parameter of inner lambda in presence of `it` from outer lambda
- [`KT-12290`](https://youtrack.jetbrains.com/issue/KT-12290) Navigate to the generated declaration when using "Implement abstract member" intention
- [`KT-12376`](https://youtrack.jetbrains.com/issue/KT-12376) Don't show "Package directive doesn't match file location" in injected code
- [`KT-12777`](https://youtrack.jetbrains.com/issue/KT-12777) Fix exception in "Create class" quickfix applied to unresolved references in type arguments

#### Language injection

- Apply injection for the literals in property initializer through property usages
- Enable injection from Java or Kotlin function declaration by annotating parameter with @Language annotation
- [`KT-2428`](https://youtrack.jetbrains.com/issue/KT-2428) Support basic use-cases of language injection for expressions marked with @Language annotation
- [`KT-11574`](https://youtrack.jetbrains.com/issue/KT-11574) Support predefined Java positions for language injection
- [`KT-11472`](https://youtrack.jetbrains.com/issue/KT-11472) Add comment or @Language annotation after "Inject language or reference" intention automatically

#### Refactorings

###### New features
- [`KT-6372`](https://youtrack.jetbrains.com/issue/KT-6372) Add name suggestions to Rename dialog
- [`KT-7851`](https://youtrack.jetbrains.com/issue/KT-7851) Respect naming conventions in automatic variable rename
- [`KT-8044`](https://youtrack.jetbrains.com/issue/KT-8044), [`KT-9432`](https://youtrack.jetbrains.com/issue/KT-9432) Support @JvmName annotation in rename refactoring
- [`KT-8512`](https://youtrack.jetbrains.com/issue/KT-8512) Support "Rename tests" options in Rename dialog
- [`KT-9168`](https://youtrack.jetbrains.com/issue/KT-9168) Support rename of synthetic properties
- [`KT-10578`](https://youtrack.jetbrains.com/issue/KT-10578) Support automatic test renaming for facade files
- [`KT-12657`](https://youtrack.jetbrains.com/issue/KT-12657) Rename implicit usages of annotation method `value`
- [`KT-12759`](https://youtrack.jetbrains.com/issue/KT-12759) Suggest renaming both property accessors with matching @JvmName when renaming one of them from Java

###### Issues fixed
- [`KT-4791`](https://youtrack.jetbrains.com/issue/KT-4791) Rename overridden property and all its accessors on attempt to rename overriding accessor in Java code
- [`KT-6363`](https://youtrack.jetbrains.com/issue/KT-6363) Do not rename ambiguous references in import directives
- [`KT-6663`](https://youtrack.jetbrains.com/issue/KT-6663) Fixed rename of ambiguous import reference to class/function when some referenced declarations are not changed
- [`KT-8510`](https://youtrack.jetbrains.com/issue/KT-8510) Preserve "Search in comments and strings" and "Search for text occurrences" settings in Rename dialog
- [`KT-8541`](https://youtrack.jetbrains.com/issue/KT-8541), [`KT-8786`](https://youtrack.jetbrains.com/issue/KT-8786) Do now show 'Rename overloads' options if target function has no overloads
- [`KT-8544`](https://youtrack.jetbrains.com/issue/KT-8544) Show more detailed description in Rename dialog
- [`KT-8562`](https://youtrack.jetbrains.com/issue/KT-8562) Show conflicts dialog on attempt of redeclaration
- [`KT-8611`](https://youtrack.jetbrains.com/issue/KT-8732) Qualify class references to resolve rename conflicts when possible
- [`KT-8732`](https://youtrack.jetbrains.com/issue/KT-8732) Implement Rename conflict analysis and fixes for properties/parameters
- [`KT-8860`](https://youtrack.jetbrains.com/issue/KT-8860) Allow renaming class by constructor delegation call referencing primary constructor
- [`KT-8892`](https://youtrack.jetbrains.com/issue/KT-8892) Suggest renaming base declarations on overriding members in object literals
- [`KT-9156`](https://youtrack.jetbrains.com/issue/KT-9156) Quote non-identifier names in Kotlin references
- [`KT-9157`](https://youtrack.jetbrains.com/issue/KT-9157) Fixed in-place rename of Kotlin expression referring Java declaration
- [`KT-9241`](https://youtrack.jetbrains.com/issue/KT-9241) Do not replace Java references to synthetic component functions when renaming constructor parameter
- [`KT-9435`](https://youtrack.jetbrains.com/issue/KT-9435) Process property accessor usages (Java) in comments and string literals
- [`KT-9444`](https://youtrack.jetbrains.com/issue/KT-9444) Rename dialog: Allow typing any identifier without backquotes
- [`KT-9446`](https://youtrack.jetbrains.com/issue/KT-9446) Copy default parameter values to overriding function which is renamed while its base function is not
- [`KT-9649`](https://youtrack.jetbrains.com/issue/KT-9649) Constraint search scope of parameter declared in a private member
- [`KT-10033`](https://youtrack.jetbrains.com/issue/KT-10033) Qualify references to members of enum companions in case of conflict with enum entries
- [`KT-10713`](https://youtrack.jetbrains.com/issue/KT-10713) Skip read-only declarations when renaming parameters
- [`KT-10687`](https://youtrack.jetbrains.com/issue/KT-10687) Qualify property references to avoid shadowing by parameters
- [`KT-11903`](https://youtrack.jetbrains.com/issue/KT-11903) Update references to facade class when renaming file via matching top-level class
- [`KT-12411`](https://youtrack.jetbrains.com/issue/KT-12411) Fix package name quotation in Move refactoring
- [`KT-12543`](https://youtrack.jetbrains.com/issue/KT-12543) Qualify property references with `this` to avoid renaming conflicts
- [`KT-12732`](https://youtrack.jetbrains.com/issue/KT-12732) Copy default parameter values to overriding function which is renamed by Java reference while its base function is unchanged
- [`KT-12747`](https://youtrack.jetbrains.com/issue/KT-12747) Fix exception on file copy

#### Java to Kotlin converter

###### New features

- [`KT-4727`](https://youtrack.jetbrains.com/issue/KT-4727) Convert Java code copied from browser or other sources

###### Issues fixed

- [`KT-11952`](https://youtrack.jetbrains.com/issue/KT-11952) Assertion failed in PropertyDetectionCache.get on conversion of access to Java constant of anonymous type
- [`KT-12046`](https://youtrack.jetbrains.com/issue/KT-12046) Recursive property setter
- [`KT-12039`](https://youtrack.jetbrains.com/issue/KT-12039) Static imports converted missing ".Companion"
- [`KT-12054`](https://youtrack.jetbrains.com/issue/KT-12054) Wrong conversion of `instanceof` checks with raw types
- [`KT-12045`](https://youtrack.jetbrains.com/issue/KT-12045) Convert `Object()` to `Any()`

#### Android Lint

###### Issues fixed

- [`KT-12015`](https://youtrack.jetbrains.com/issue/KT-12015) False positive for Bundle.getInt()
- [`KT-12023`](https://youtrack.jetbrains.com/issue/KT-12023) "minSdk" lint check doesn't work for `as`/`is`
- [`KT-12674`](https://youtrack.jetbrains.com/issue/KT-12674) "Calling new methods on older versions" errors for inlined constants
- [`KT-12681`](https://youtrack.jetbrains.com/issue/KT-12681) Running lint from main menu: diagnostics reported for java source files only
- [`KT-12173`](https://youtrack.jetbrains.com/issue/KT-12173) False positive for "Toast created but not shown" inside SAM adapter
- [`KT-12895`](https://youtrack.jetbrains.com/issue/KT-12895) NoSuchMethodError thrown when saving a Kotlin file

#### KDoc

###### New features
- Support for @receiver tag

###### Issues fixed
- Rendering of `_` and `*` standalone characters
- Rendering of code blocks
- [`KT-9933`](https://youtrack.jetbrains.com/issue/KT-9933) Indentation in code fragments is not preserved
- [`KT-10998`](https://youtrack.jetbrains.com/issue/KT-10998) Spaces around links are missing in return block
- [`KT-11791`](https://youtrack.jetbrains.com/issue/KT-11791) Markdown links rendering
- [`KT-12001`](https://youtrack.jetbrains.com/issue/KT-12001) Allow use of `@param` to document type parameter

#### Maven support

###### New features
- Inspections that check that kotlin IDEA plugin, kotlin Maven plugin and kotlin stdlib are of the same version
- [`KT-11643`](https://youtrack.jetbrains.com/issue/KT-11643) Inspections and intentions to fix erroneously configured Maven pom file
- [`KT-11701`](https://youtrack.jetbrains.com/issue/KT-11701) "Add Maven Dependency quick fix" in Kotlin source files
- [`KT-11743`](https://youtrack.jetbrains.com/issue/KT-11743) Intention to replace kotlin-test with kotlin-test-junit

###### Issues fixed
- [`KT-9492`](https://youtrack.jetbrains.com/issue/KT-9492) Configuring multiple Maven Modules
- [`KT-11642`](https://youtrack.jetbrains.com/issue/KT-11642) Kotlin Maven configurator tags order
- [`KT-11436`](https://youtrack.jetbrains.com/issue/KT-11436) "Choose Configurator" control opens dialogs with inconsistent modality (linux)
- [`KT-11731`](https://youtrack.jetbrains.com/issue/KT-11731) Default maven integration doesn't include documentation
- [`KT-12568`](https://youtrack.jetbrains.com/issue/KT-12568) Execution configuration: file path completion works only in some sub-elements of <sourceDirs>
- [`KT-12558`](https://youtrack.jetbrains.com/issue/KT-12558) Configure Kotlin in Project: "Undo" should revert changes in all poms
- [`KT-12512`](https://youtrack.jetbrains.com/issue/KT-12512) "Different IDE and Maven plugin version" inspection is being invoked for non-tracked pom.xml files

#### Debugger

###### New features
- [`KT-11438`](https://youtrack.jetbrains.com/issue/KT-11438) Support navigation from stacktrace to inline function call site

###### Issues fixed
- Do not step into inline lambda argument during step over inside inline function body
- Fix step over for inline argument with non-local return
- [`KT-12067`](https://youtrack.jetbrains.com/issue/KT-12067) Deadlock in Kotlin debugger is fixed
- [`KT-12232`](https://youtrack.jetbrains.com/issue/KT-12232) No code completion in Evaluate Expression and Throwable at CodeCompletionHandlerBase.invokeCompletion()
- [`KT-12137`](https://youtrack.jetbrains.com/issue/KT-12137) Evaluate expression: code completion/intention actions allows to use symbols from modules that are not referenced
- [`KT-12206`](https://youtrack.jetbrains.com/issue/KT-12206) NoSuchFieldError in Evaluate Expression on a property of a derived class
- [`KT-12678`](https://youtrack.jetbrains.com/issue/KT-12678) NoSuchFieldError in Evaluate Expression on accessing delegated property defined in other module
- [`KT-12773`](https://youtrack.jetbrains.com/issue/KT-12773) Fix debugging for Kotlin JS projects

#### Formatter

###### Issues fixed

- [`KT-12035`](https://youtrack.jetbrains.com/issue/KT-12035) Spaces around `as`
- [`KT-12018`](https://youtrack.jetbrains.com/issue/KT-12018) Spaces between function name and arguments in infix calls
- [`KT-11961`](https://youtrack.jetbrains.com/issue/KT-11961) Spaces before angle bracket in method definition
- [`KT-12175`](https://youtrack.jetbrains.com/issue/KT-12175) Don't enforce empty line between secondary constructors without body
- [`KT-12548`](https://youtrack.jetbrains.com/issue/KT-12548) Spaces around `is` keyword
- [`KT-12446`](https://youtrack.jetbrains.com/issue/KT-12446) Spaces before class type parameters
- [`KT-12634`](https://youtrack.jetbrains.com/issue/KT-12634) Spaces between method name and parenthesis in method call
- [`KT-10680`](https://youtrack.jetbrains.com/issue/KT-10680) Spaces around `in` keyword
- [`KT-12791`](https://youtrack.jetbrains.com/issue/KT-12791) Spaces between curly brace and expression inside string template
- [`KT-12781`](https://youtrack.jetbrains.com/issue/KT-12781) Spaces between annotation and expression
- [`KT-12689`](https://youtrack.jetbrains.com/issue/KT-12689) Spaces around semicolons
- [`KT-12714`](https://youtrack.jetbrains.com/issue/KT-12714) Spaces around parentheses in enum elements

#### Other

###### New features

- Added "Decompile" button to Kotlin bytecode toolwindow
- Added Kotlin "Tips of the day"
- Added "Kotlin 1.1 EAP" to "Configure Kotlin Plugin updates"
- [`KT-2919`](https://youtrack.jetbrains.com/issue/KT-2919) Constructor calls are no longer highlighted as classes
- [`KT-6540`](https://youtrack.jetbrains.com/issue/KT-6540) Infix function calls are now highlighted as regular function calls
- [`KT-9410`](https://youtrack.jetbrains.com/issue/KT-9410) Annotations in Kotlin are now highlighted with the same color as in Java by default
- [`KT-11465`](https://youtrack.jetbrains.com/issue/KT-11465) Type parameters in Kotlin are now highlighted with the same color as in Java by default
- [`KT-11657`](https://youtrack.jetbrains.com/issue/KT-11657) Allow viewing decompiled Java source code for Kotlin-compiled classes
- [`KT-11704`](https://youtrack.jetbrains.com/issue/KT-11704) Support file path references inside of Kotlin string literals
- [`KT-12076`](https://youtrack.jetbrains.com/issue/KT-12076) Kotlin Plugin update check: always display installed version number
- [`KT-11814`](https://youtrack.jetbrains.com/issue/KT-11814) New icon for kotlin annotation classes
- [`KT-12735`](https://youtrack.jetbrains.com/issue/KT-12735) Convert JavaDoc to KDoc when overriding Java class member in Kotlin

###### Issues fixed

- [`KT-5960`](https://youtrack.jetbrains.com/issue/KT-5960) Can't find usages for Java methods used from Kotlin by call convention
- [`KT-8362`](https://youtrack.jetbrains.com/issue/KT-8362) "New Kotlin file":  Keywords should be escaped in package name
- [`KT-8682`](https://youtrack.jetbrains.com/issue/KT-8682) Respect "Copy JavaDoc" option in the "Override/Implement Members..." dialog
- [`KT-8817`](https://youtrack.jetbrains.com/issue/KT-8817) Fixed rename of Java getters/setters through synthetic property references in Kotlin
- [`KT-9399`](https://youtrack.jetbrains.com/issue/KT-9399) Find Usages omits Kotlin annotation parameter usage in Java source
- [`KT-9797`](https://youtrack.jetbrains.com/issue/KT-9797) "Kotlin Bytecode" toolwindow breaks after closing
- [`KT-11145`](https://youtrack.jetbrains.com/issue/KT-11145) Use progress indicator when searching usages in Introduce Parameter
- [`KT-11155`](https://youtrack.jetbrains.com/issue/KT-11155) Allow running multiple Kotlin classes as well as running mixtures of Kotlin and Java classes
- [`KT-11495`](https://youtrack.jetbrains.com/issue/KT-11495) Show recursion line markers for extension function calls with different receiver
- [`KT-11659`](https://youtrack.jetbrains.com/issue/KT-11659) Generate abstract overrides for Any members inside of Kotlin interfaces
- [`KT-12070`](https://youtrack.jetbrains.com/issue/KT-12070) Add empty line in error message of Maven and Gradle configuration
- [`KT-11908`](https://youtrack.jetbrains.com/issue/KT-11908) Allow properties with custom setters to be used in generated equals/hashCode/toString
- [`KT-11617`](https://youtrack.jetbrains.com/issue/KT-11617) Fixed title of Introduce Parameter declaration chooser
- [`KT-11817`](https://youtrack.jetbrains.com/issue/KT-11817) Fixed rename of Kotlin enum constants through Java references
- [`KT-11816`](https://youtrack.jetbrains.com/issue/KT-11816) Fixed usages search for Safe Delete on simple enum entries
- [`KT-11282`](https://youtrack.jetbrains.com/issue/KT-11282) Delete interface reference from super-type list when applying Safe Delete to Java interface
- [`KT-11967`](https://youtrack.jetbrains.com/issue/KT-11967) Fix Find Usages/Rename for parameter references in XML files
- [`KT-10770`](https://youtrack.jetbrains.com/issue/KT-10770) "Optimize imports" will not keep import if a type is only referenced by kdoc
- [`KT-11955`](https://youtrack.jetbrains.com/issue/KT-11955) Copy/Paste inserts fully qualified name when copying function with overloads
- [`KT-12436`](https://youtrack.jetbrains.com/issue/KT-12436) "Replace explicit parameter with it": java.lang.Exception at BaseRefactoringProcessor.run()
- [`KT-12440`](https://youtrack.jetbrains.com/issue/KT-12440) Removing unused parameter results in Exception "Refactorings should not be started inside write action"
- [`KT-12006`](https://youtrack.jetbrains.com/issue/KT-12006) getLanguageLevel is slow for Kotlin light classes
- [`KT-12026`](https://youtrack.jetbrains.com/issue/KT-12026) "Constant expression required" in Java for const Kotlin values
- [`KT-12259`](https://youtrack.jetbrains.com/issue/KT-12259) ClassCastException in light classes while trying to create generic property
- [`KT-12289`](https://youtrack.jetbrains.com/issue/KT-12289) Remove unnecessary `?` from `serr` live template
- [`KT-12110`](https://youtrack.jetbrains.com/issue/KT-12110) Map help button of the Compiler - Kotlin page
- [`KT-12075`](https://youtrack.jetbrains.com/issue/KT-12075) Kotlin Plugin update check: make dumbaware
- [`KT-10255`](https://youtrack.jetbrains.com/issue/KT-10255) call BuildManager.clearState(project) in apply() method of Kotlin Compiler Settings configurable
- [`KT-11841`](https://youtrack.jetbrains.com/issue/KT-11841) New Project / Module wizard, Gradle: pure Kotlin module is created without `repositories` call in build.gradle
- [`KT-11095`](https://youtrack.jetbrains.com/issue/KT-11095) Java cannot infer generic return type of Kotlin function (with java 8 language level)
- [`KT-12090`](https://youtrack.jetbrains.com/issue/KT-12090) Intellij/Kotlin plugin does not handle generic return type of static method defined in Kotlin, called from Java
- [`KT-12206`](https://youtrack.jetbrains.com/issue/KT-12206) Fix NoSuchFieldError on accessing base property without backing field in evaluate expression
- [`KT-12516`](https://youtrack.jetbrains.com/issue/KT-12516) File Structure: Kotlin annotation classes have Java annotation icons
- [`KT-11328`](https://youtrack.jetbrains.com/issue/KT-11328) "New Kotlin class": generates packages when fully qualified name is specified
- [`KT-11778`](https://youtrack.jetbrains.com/issue/KT-11778) Exception in Lombok plugin: Rewrite at slice FUNCTION
- [`KT-11708`](https://youtrack.jetbrains.com/issue/KT-11708) "Go to declaration" doesn't work on a call to function with SAM conversion on a derived type
- [`KT-12381`](https://youtrack.jetbrains.com/issue/KT-12381) Prefer not-nullable return type when overriding Java method without nullability annotation
- [`KT-12647`](https://youtrack.jetbrains.com/issue/KT-12647) Performance improvement for test-related line markers
- [`KT-12526`](https://youtrack.jetbrains.com/issue/KT-12526) Kotlin intentions increase PSI modification counts from isAvailable, even in daemon threads

### Reflection

###### Issues fixed
- [`KT-11531`](https://youtrack.jetbrains.com/issue/KT-11531) Optimize "KCallable.name"
- [`KT-10771`](https://youtrack.jetbrains.com/issue/KT-10771) Reflection on Function objects does not support lambdas with generic return type
- [`KT-11824`](https://youtrack.jetbrains.com/issue/KT-11824) Reflection inconsistency between member property and accessor

### JS

- Improve performance of maps and sets

###### Issues fixed
- [`KT-6942`](https://youtrack.jetbrains.com/issue/KT-6942) Generate structural equality check (i.e. `Any.equals`) instead of referential check (===) value equality patterns in `when`
- [`KT-7228`](https://youtrack.jetbrains.com/issue/KT-7228) Wrong AbstractList signature
- [`KT-8299`](https://youtrack.jetbrains.com/issue/KT-8299) Wrong access to private member in autogenerated code in data class
- [`KT-11346`](https://youtrack.jetbrains.com/issue/KT-11346) Reified functions like `filterIsInstance` are now available in JS Standard Library
- [`KT-12305`](https://youtrack.jetbrains.com/issue/KT-12305) Incorrect translation of `vararg` in `@native` functions
- [`KT-12254`](https://youtrack.jetbrains.com/issue/KT-12254) JsEmptyExpression in initializer when compiling code like `val x = throw Exception()`
- [`KT-11960`](https://youtrack.jetbrains.com/issue/KT-11960) Wrong code generated when a method of a local class calls constructor of the class
- [`KT-10931`](https://youtrack.jetbrains.com/issue/KT-10931) Incorrect inlining of library method with optional parameters
- [`KT-12417`](https://youtrack.jetbrains.com/issue/KT-12417) Wrong check cast generated for KMutableProperty

### Tools

###### New features

- [`KT-11839`](https://youtrack.jetbrains.com/issue/KT-11839) Maven goal to execute kotlin script

###### Issues fixed

- KAPT: fix error when using enum constructors with parameters
- Various problems with gradle 2.2 fixed: [`KT-12478`](https://youtrack.jetbrains.com/issue/KT-12478), [`KT-12406`](https://youtrack.jetbrains.com/issue/KT-12406), [`KT-12478`](https://youtrack.jetbrains.com/issue/KT-12478)
- [`KT-12595`](https://youtrack.jetbrains.com/issue/KT-12595) JPS: Fixed com.intellij.util.io.MappingFailedException: Cannot map buffer
- [`KT-11166`](https://youtrack.jetbrains.com/issue/KT-11166) Gradle: Unable to access internal classes from test code within the same module
- [`KT-12352`](https://youtrack.jetbrains.com/issue/KT-12352) KAPT: Fix "Classpath entry points to a non-existent location" warnings
- [`KT-12074`](https://youtrack.jetbrains.com/issue/KT-12074) Building Kotlin maven projects using a parent pom will silently fail
- [`KT-11770`](https://youtrack.jetbrains.com/issue/KT-11770) Warning "RuntimeException: Could not find installation home path" when using Gradle Incremental Compilation
- [`KT-10969`](https://youtrack.jetbrains.com/issue/KT-10969) Android extensions: NullPointerException when finding view in Fragment
- [`KT-11885`](https://youtrack.jetbrains.com/issue/KT-11885) Gradle/Android: Unresolved reference "kotlinx" when classpath dependency is defined in root build.gradle
- [`KT-12786`](https://youtrack.jetbrains.com/issue/KT-12786) Deprecation warning with Gradle 2.14

## 1.0.2-1

- [KT-12159](https://youtrack.jetbrains.com/issue/KT-12159), [KT-12406](https://youtrack.jetbrains.com/issue/KT-12406), [KT-12431](https://youtrack.jetbrains.com/issue/KT-12431), [KT-12478](https://youtrack.jetbrains.com/issue/KT-12478) Support Android Studio 2.2
- [KT-11770](https://youtrack.jetbrains.com/issue/KT-11770) Fix warning "RuntimeException: Could not find installation home path" when using incremental compilation in Gradle
- [KT-12436](https://youtrack.jetbrains.com/issue/KT-12436), [KT-12440](https://youtrack.jetbrains.com/issue/KT-12440) Fix multiple exceptions during refactorings in IDEA 2016.2 EAP
- [KT-12015](https://youtrack.jetbrains.com/issue/KT-12015), [KT-12047](https://youtrack.jetbrains.com/issue/KT-12047), [KT-12387](https://youtrack.jetbrains.com/issue/KT-12387) Fix multiple issues in Kotlin Lint checks

## 1.0.2

### Compiler

#### Analysis & diagnostics

- [KT-7437](https://youtrack.jetbrains.com/issue/KT-7437), [KT-7971](https://youtrack.jetbrains.com/issue/KT-7971), [KT-7051](https://youtrack.jetbrains.com/issue/KT-7051), [KT-6125](https://youtrack.jetbrains.com/issue/KT-6125), [KT-6186](https://youtrack.jetbrains.com/issue/KT-6186), [KT-11649](https://youtrack.jetbrains.com/issue/KT-11649) Implement missing checks for protected visibility
- [KT-11666](https://youtrack.jetbrains.com/issue/KT-11666) Report "Implicit nothing return type" on non-override member functions
- [KT-4328](https://youtrack.jetbrains.com/issue/KT-4328), [KT-11497](https://youtrack.jetbrains.com/issue/KT-11497), [KT-10493](https://youtrack.jetbrains.com/issue/KT-10493), [KT-10820](https://youtrack.jetbrains.com/issue/KT-10820), [KT-11368](https://youtrack.jetbrains.com/issue/KT-11368) Report error if some classes were not found due to missing or conflicting dependencies
- [KT-11280](https://youtrack.jetbrains.com/issue/KT-11280) Do not perform smart casts for values with custom `equals` compared with `==`
- [KT-3856](https://youtrack.jetbrains.com/issue/KT-3856) Fix wrong "inner class inaccessible" diagnostic for extension to outer class
- [KT-3896](https://youtrack.jetbrains.com/issue/KT-3896), [KT-3883](https://youtrack.jetbrains.com/issue/KT-3883), [KT-4986](https://youtrack.jetbrains.com/issue/KT-4986) `do...while (true)` is now considered an infinite loop
- [KT-10445](https://youtrack.jetbrains.com/issue/KT-10445) Prohibit initialization of captured `val` in lambda or in local function
- [KT-10042](https://youtrack.jetbrains.com/issue/KT-10042) Correctly handle local classes and anonymous objects in control flow analysis
- [KT-11043](https://youtrack.jetbrains.com/issue/KT-11043) Prohibit complex expressions with class literals in annotation arguments
- [KT-10992](https://youtrack.jetbrains.com/issue/KT-10992), [KT-11007](https://youtrack.jetbrains.com/issue/KT-11007) Fix multiple problems related to smart casts
- [KT-11490](https://youtrack.jetbrains.com/issue/KT-11490) Prohibit nested intersection types in return position
- [KT-11411](https://youtrack.jetbrains.com/issue/KT-11411) Report "illegal noinline/crossinline" on parameter of subtype of function type
- [KT-3083](https://youtrack.jetbrains.com/issue/KT-3083) Report "conflicting overloads" for functions with parameter of type parameter type
- [KT-7265](https://youtrack.jetbrains.com/issue/KT-7265) Parse anonymous functions in blocks as expressions
- [KT-8246](https://youtrack.jetbrains.com/issue/KT-8246) Handle break/continue for outer loop correctly in case of try/finally in between
- [KT-11300](https://youtrack.jetbrains.com/issue/KT-11300) Report error on increment or augmented assignment when `get` is an operator but `set` is not
- Report warning about unused anonymous functions
- Improve callable reference type in some ambiguous cases
- Improve multiple diagnostic messages: [KT-10761](https://youtrack.jetbrains.com/issue/KT-10761), [KT-9760](https://youtrack.jetbrains.com/issue/KT-9760), [KT-10949](https://youtrack.jetbrains.com/issue/KT-10949), [KT-9887](https://youtrack.jetbrains.com/issue/KT-9887), [KT-9550](https://youtrack.jetbrains.com/issue/KT-9550), [KT-11239](https://youtrack.jetbrains.com/issue/KT-11239), [KT-11819](https://youtrack.jetbrains.com/issue/KT-11819)
- Fix several compiler bugs leading to exceptions: [KT-9820](https://youtrack.jetbrains.com/issue/KT-9820), [KT-11597](https://youtrack.jetbrains.com/issue/KT-11597), [KT-10983](https://youtrack.jetbrains.com/issue/KT-10983), [KT-10972](https://youtrack.jetbrains.com/issue/KT-10972), [KT-11287](https://youtrack.jetbrains.com/issue/KT-11287), [KT-11492](https://youtrack.jetbrains.com/issue/KT-11492), [KT-11765](https://youtrack.jetbrains.com/issue/KT-11765), [KT-11869](https://youtrack.jetbrains.com/issue/KT-11869)

#### JVM code generation

- [KT-8269](https://youtrack.jetbrains.com/issue/KT-8269), [KT-9246](https://youtrack.jetbrains.com/issue/KT-9246), [KT-10143](https://youtrack.jetbrains.com/issue/KT-10143) Fix visibility of protected classes in bytecode
- [KT-11363](https://youtrack.jetbrains.com/issue/KT-11363) Fix potential binary compatibility breakage on using `when` over enums in inline functions
- [KT-11762](https://youtrack.jetbrains.com/issue/KT-11762) Fix VerifyError caused by explicit loop variable type
- [KT-11645](https://youtrack.jetbrains.com/issue/KT-11645) Fix NoSuchFieldError on private const property in multi-file class
- [KT-9670](https://youtrack.jetbrains.com/issue/KT-9670) Optimize Class <-> KClass wrapping/unwrapping when getting values from annotation
- [KT-6842](https://youtrack.jetbrains.com/issue/KT-6842) Optimize unnecessary boxing and interface calls on iterating over ranges
- [KT-11025](https://youtrack.jetbrains.com/issue/KT-11025) Don't inline const val properties in non-annotation contexts
- [KT-5429](https://youtrack.jetbrains.com/issue/KT-5429) Write nullability annotations on extension receiver parameters
- [KT-11347](https://youtrack.jetbrains.com/issue/KT-11347) Preserve source file and line number of call site when inlining certain standard library functions
- [KT-11677](https://youtrack.jetbrains.com/issue/KT-11677) Write correct generic signatures for local classes in inlined lambdas
- [KT-12127](https://youtrack.jetbrains.com/issue/KT-12127) Do not write unnecessary generic signature for property delegate backing field
- Fix multiple issues leading to exceptions or bad bytecode being generated: [KT-11034](https://youtrack.jetbrains.com/issue/KT-11034), [KT-11519](https://youtrack.jetbrains.com/issue/KT-11519), [KT-11117](https://youtrack.jetbrains.com/issue/KT-11117), [KT-11479](https://youtrack.jetbrains.com/issue/KT-11479)

#### Java interoperability

- [KT-3068](https://youtrack.jetbrains.com/issue/KT-3068) Load contravariantly projected collections in Java (`List<? super T>`) as mutable collections in Kotlin (`MutableList<in T>`)
- [KT-11322](https://youtrack.jetbrains.com/issue/KT-11322) Do not lose type nullability information in SAM constructors
- [KT-11721](https://youtrack.jetbrains.com/issue/KT-11721) Fix wrong "Typechecker has run into recursive problem" error on calling Kotlin get function as synthetic Java property
- [KT-10691](https://youtrack.jetbrains.com/issue/KT-10691) Fix wrong "Inherited platform declarations clash" error on inheritance from generic Java class with overloaded methods

#### Command line compiler

- [KT-9546](https://youtrack.jetbrains.com/issue/KT-9546) Flush stdout and stderr before shutdown when executing scripts
- [KT-10605](https://youtrack.jetbrains.com/issue/KT-10605) Disable colored output on certain platforms to prevent crashes
- Report warning instead of error on unknown "-X" flags
- Remove the compiler option "Xmultifile-facades-open"

#### Compiler daemon

- Reduce read disk activity
- Fix compiler daemon JAR cache clearing on IDEA Ultimate

### Standard library

- [KT-11410](https://youtrack.jetbrains.com/issue/KT-11410) Reduce method count of the standard library by ~2k
- [KT-9990](https://youtrack.jetbrains.com/issue/KT-9990) Optimize snapshot operations to return special collection implementations when result is empty or has single element
- [KT-10794](https://youtrack.jetbrains.com/issue/KT-10794) EmptyList now implements RandomAccess
- [KT-10821](https://youtrack.jetbrains.com/issue/KT-10821) Create at most one wrapper sequence for adjacent drop/take operations on sequences
- [KT-11301](https://youtrack.jetbrains.com/issue/KT-11301) Make Map.plus accept Map out-projected by key type as either operand (receiver or parameter)
- [KT-11485](https://youtrack.jetbrains.com/issue/KT-11485) Remove implementations of some internal intrinsic functions
- [KT-11648](https://youtrack.jetbrains.com/issue/KT-11648) Add deprecated extension MutableList.remove to redirect to valid function removeAt
- [KT-11348](https://youtrack.jetbrains.com/issue/KT-11348) kotlin.test: Make inline methods `todo` and `currentStackTrace` `@InlineOnly` not to lose stack trace
- [KT-11745](https://youtrack.jetbrains.com/issue/KT-11745) Rename parameters of `String.subSequence` to match those of `CharSequence.subSequence`
- [KT-10953](https://youtrack.jetbrains.com/issue/KT-10953) Clarify parameter order of lambda function parameter of `*Indexed` functions
- [KT-10198](https://youtrack.jetbrains.com/issue/KT-10198) Improve docs for `binarySearch` functions
- [KT-9786](https://youtrack.jetbrains.com/issue/KT-9786) Improve docs for `trimIndent`/`trimMargin`

### Reflection

- [KT-9952](https://youtrack.jetbrains.com/issue/KT-9952) Improve `toString()` for lambdas and function expressions when kotlin-reflect.jar is available
- [KT-11433](https://youtrack.jetbrains.com/issue/KT-11433) Fix multiple resource leaks by closing InputStream instances
- [KT-8131](https://youtrack.jetbrains.com/issue/KT-8131) Fix exception from calling `KProperty.javaField` on a subclass
- [KT-10690](https://youtrack.jetbrains.com/issue/KT-10690) Support `javaMethod` and `kotlinFunction` for top level functions in a different file
- [KT-11447](https://youtrack.jetbrains.com/issue/KT-11447) Support reflection calls to multifile class members
- [KT-10892](https://youtrack.jetbrains.com/issue/KT-10892) Load annotations of const properties from multifile classes
- [KT-11258](https://youtrack.jetbrains.com/issue/KT-11258) Don't crash on requesting members of Java collection classes
- [KT-11502](https://youtrack.jetbrains.com/issue/KT-11502) Clarify KClass equality

### JS

- [KT-4124](https://youtrack.jetbrains.com/issue/KT-4124) Support nested classes
- [KT-11030](https://youtrack.jetbrains.com/issue/KT-11030) Support local classes
- [KT-7819](https://youtrack.jetbrains.com/issue/KT-7819) Support non-local returns in local lambdas
- [KT-6912](https://youtrack.jetbrains.com/issue/KT-6912) Safe calls (`x?.let { it }`) are now inlined
- [KT-2670](https://youtrack.jetbrains.com/issue/KT-2670) Support unsafe casts (`as`)
- [KT-7016](https://youtrack.jetbrains.com/issue/KT-7016), [KT-8012](https://youtrack.jetbrains.com/issue/KT-8012) Fix `is`-checks for reified type parameters
- [KT-7038](https://youtrack.jetbrains.com/issue/KT-7038) Avoid unwanted side effects on `is`-checks for nullable types
- [KT-10614](https://youtrack.jetbrains.com/issue/KT-10614) Copy array on vararg call with spread operator
- [KT-10785](https://youtrack.jetbrains.com/issue/KT-10785) Correctly translate property names and receiver instances in assignment operations
- [KT-11611](https://youtrack.jetbrains.com/issue/KT-11611) Fix translation of default value of secondary constructor's functional parameter
- [KT-11100](https://youtrack.jetbrains.com/issue/KT-11100) Fix generation of `invoke` on objects and companion objects
- [KT-11823](https://youtrack.jetbrains.com/issue/KT-11823) Fix capturing of outer class' `this` in inner's lambdas
- [KT-11996](https://youtrack.jetbrains.com/issue/KT-11996) Fix translation of a call to a private member of an outer class from an inner class which is a subtype of the outer class
- [KT-10667](https://youtrack.jetbrains.com/issue/KT-10667) Support inheritance from nested built-in types such as Map.Entry
- [KT-7480](https://youtrack.jetbrains.com/issue/KT-7480) Remove declarations of LinkedList, SortedSet, TreeSet, Enumeration
- [KT-3064](https://youtrack.jetbrains.com/issue/KT-3064) Implement `CharSequence.repeat`

### IDE

New features:

- Spring Support
  - [KT-11098](https://youtrack.jetbrains.com/issue/KT-11098) Inspection on final classes/functions annotated with Spring `@Configuration`/`@Component`/`@Bean`
  - [KT-11405](https://youtrack.jetbrains.com/issue/KT-11405) Navigation and Find Usages for Spring beans referenced in annotation arguments and BeanFactory method calls
  - [KT-3741](https://youtrack.jetbrains.com/issue/KT-3741) Show Spring-specific line markers on Kotlin classes
  - [KT-11406](https://youtrack.jetbrains.com/issue/KT-11406) Support Spring EL injections inside of Kotlin string literals
  - [KT-11604](https://youtrack.jetbrains.com/issue/KT-11604) Support "Configure Spring facet" inspection on Kotlin classes
  - [KT-11407](https://youtrack.jetbrains.com/issue/KT-11407) Implement "Generate Spring Dependency..." actions
  - [KT-11408](https://youtrack.jetbrains.com/issue/KT-11408) Implement "Generate `@Autowired` Dependency..." action
  - [KT-11652](https://youtrack.jetbrains.com/issue/KT-11652) Rename bean attributes mentioned in Spring XML config together with corresponding Kotlin declarations
- Enable precise incremental compilation by default in non-Maven/Gradle projects
- [KT-11612](https://youtrack.jetbrains.com/issue/KT-11612) Highlight named arguments
- [KT-7715](https://youtrack.jetbrains.com/issue/KT-7715) Highlight `var`s that can be replaced by `val`s
- [KT-5208](https://youtrack.jetbrains.com/issue/KT-5208) Intention action to convert string to raw string and back
- [KT-11078](https://youtrack.jetbrains.com/issue/KT-11078) Quick fix to remove `.java` when KClass is expected
- [KT-1494](https://youtrack.jetbrains.com/issue/KT-1494) Inspection to highlight public members with no documentation
- [KT-8473](https://youtrack.jetbrains.com/issue/KT-8473) Intention action to implement interface or abstract class
- [KT-10299](https://youtrack.jetbrains.com/issue/KT-10299) Inspection to warn on array properties in data classes
- [KT-6674](https://youtrack.jetbrains.com/issue/KT-6674) Inspection to warn on protected symbols in effectively final classes
- [KT-11576](https://youtrack.jetbrains.com/issue/KT-11576) Quick fix to suppress "Unused symbol" warning based on annotations on the declaration
- [KT-10063](https://youtrack.jetbrains.com/issue/KT-10063) Quick fix for adding `arrayOf` wrapper for annotation parameters
- [KT-10476](https://youtrack.jetbrains.com/issue/KT-10476) Quick fix for converting primitive types
- [KT-10859](https://youtrack.jetbrains.com/issue/KT-10859) Quick fix to make `var` with private setter final
- [KT-9498](https://youtrack.jetbrains.com/issue/KT-9498) Quick fix to specify property type
- [KT-10509](https://youtrack.jetbrains.com/issue/KT-10509) Quick fix to simplify condition with senseless comparison
- [KT-11404](https://youtrack.jetbrains.com/issue/KT-11404) Quick fix to let type implement missing interface
- [KT-6785](https://youtrack.jetbrains.com/issue/KT-6785), [KT-10013](https://youtrack.jetbrains.com/issue/KT-10013), [KT-9996](https://youtrack.jetbrains.com/issue/KT-9996), [KT-11675](https://youtrack.jetbrains.com/issue/KT-11675) Support Smart Enter for trailing lambda argument, try/catch/finally, property setter, init block
- Add `kotlinClassName()` and `kotlinFunctionName()` macros for use in live templates
- Auto-configure EAP-repository during Kotlin Maven and Gradle project set up

Issues fixed:

- [KT-11678](https://youtrack.jetbrains.com/issue/KT-11678), [KT-4768](https://youtrack.jetbrains.com/issue/KT-4768) Support navigation to Kotlin libraries from Java sources
- [KT-9401](https://youtrack.jetbrains.com/issue/KT-9401) Support Change Signature quick fix for Java -> Kotlin case
- [KT-8592](https://youtrack.jetbrains.com/issue/KT-8592) Fix "Choose sources" for Kotlin files
- [KT-11256](https://youtrack.jetbrains.com/issue/KT-11256) Fix Navigate to declaration for Java constructor with `@NotNull` parameter
- [KT-11018](https://youtrack.jetbrains.com/issue/KT-11018) Fix `var`s shown in Ctrl + Mouse Hover as `val`s
- [KT-5105](https://youtrack.jetbrains.com/issue/KT-5105), [KT-11024](https://youtrack.jetbrains.com/issue/KT-11024) Improve incompatible ABI versions editor strap, show the hint on how to resolve the problem
- [KT-11638](https://youtrack.jetbrains.com/issue/KT-11638) Fixed `hashCode()` implementation in "Generate equals/hashCode" action
- [KT-10971](https://youtrack.jetbrains.com/issue/KT-10971) Pull Members Up: Always insert spaces between keywords
- [KT-11476](https://youtrack.jetbrains.com/issue/KT-11476), [KT-4175](https://youtrack.jetbrains.com/issue/KT-4175), [KT-10965](https://youtrack.jetbrains.com/issue/KT-10965), [KT-11076](https://youtrack.jetbrains.com/issue/KT-11076) Formatter: fix multiple issues regarding space handling
- [KT-9025](https://youtrack.jetbrains.com/issue/KT-9025) Improve "Create Kotlin Java runtime library" dialog usability
- [KT-11481](https://youtrack.jetbrains.com/issue/KT-11481) Fix "Add import" intention not being available for `is` branches in when
- [KT-10619](https://youtrack.jetbrains.com/issue/KT-10619) Fix completion after package name in annotation
- [KT-10621](https://youtrack.jetbrains.com/issue/KT-10621) Do not show non-top level packages after `@` in completion
- [KT-11295](https://youtrack.jetbrains.com/issue/KT-11295) "Convert string to template" intention: fix exception on certain code
- [KT-10750](https://youtrack.jetbrains.com/issue/KT-10750), [KT-11424](https://youtrack.jetbrains.com/issue/KT-11424) "Convert if to when" intention now detects effectively else branches in subsequent code and performs more accurate comment handling
- Configure Kotlin: show only changed files in the notification "Kotlin not configured", restore all changed files in undo action
- [KT-11556](https://youtrack.jetbrains.com/issue/KT-11556) Do not show "Kotlin not configured" for Kotlin JS projects
- [KT-11593](https://youtrack.jetbrains.com/issue/KT-11593) Fix "Configure Kotlin" action for Gradle projects in IDEA 2016
- [KT-11077](https://youtrack.jetbrains.com/issue/KT-11077) Use new built-in definition file format (`.kotlin_builtins` files)
- [KT-5728](https://youtrack.jetbrains.com/issue/KT-5728) Remove closing curly brace in a string template when opening one is deleted
- [KT-10883](https://youtrack.jetbrains.com/issue/KT-10883) "Explicit get or set call" quick fix: do not move caret too far away
- [KT-5717](https://youtrack.jetbrains.com/issue/KT-5717) "Replace `when` with `if`": do not lose comments
- [KT-10797](https://youtrack.jetbrains.com/issue/KT-10797) "Replace with operator" intention is not available anymore for non-`operator` functions
- [KT-11529](https://youtrack.jetbrains.com/issue/KT-11529) Highlighting range for unresolved annotation name does not include `@` now
- [KT-11178](https://youtrack.jetbrains.com/issue/KT-11178) Don't show "Change type arguments" fix when there's nothing to change
- [KT-11789](https://youtrack.jetbrains.com/issue/KT-11789) Don't interpret annotations inside Markdown code blocks as KDoc tags
- [KT-11702](https://youtrack.jetbrains.com/issue/KT-11702) Fixed resolution of Kotlin beans with custom name
- [KT-11689](https://youtrack.jetbrains.com/issue/KT-11689) Fixed exception on attempt to navigate to Kotlin file from Spring notification balloon
- [KT-11725](https://youtrack.jetbrains.com/issue/KT-11725) Fixed renaming of injected SpEL references
- [KT-11720](https://youtrack.jetbrains.com/issue/KT-11720) Fixed renaming of Kotlin beans through SpEL references
- [KT-11719](https://youtrack.jetbrains.com/issue/KT-11719) Fixed renaming of Kotlin parameters references in XML files
- [KT-11736](https://youtrack.jetbrains.com/issue/KT-11736) Fixed searching of Java usages for @JvmStatic properties and @JvmStatic @JvmOverloads functions
- [KT-11862](https://youtrack.jetbrains.com/issue/KT-11862) Fixed bogus warnings about unresolved types in the Change Signature dialog
- Fix several issues leading to exceptions: [KT-11579](https://youtrack.jetbrains.com/issue/KT-11579), [KT-11580](https://youtrack.jetbrains.com/issue/KT-11580), [KT-11777](https://youtrack.jetbrains.com/issue/KT-11777), [KT-11868](https://youtrack.jetbrains.com/issue/KT-11868), [KT-11845](https://youtrack.jetbrains.com/issue/KT-11845), [KT-11486](https://youtrack.jetbrains.com/issue/KT-11486)
- Fixed NoSuchFieldException in Kotlin module settings on IDEA Ultimate

#### Debugger

- [KT-11705](https://youtrack.jetbrains.com/issue/KT-11705) "Smart step into" no longer skips methods from subclasses
- Debugger can now distinguish nested inline arguments
- [KT-11326](https://youtrack.jetbrains.com/issue/KT-11326) Support private classes in Evaluate Expression
- [KT-11455](https://youtrack.jetbrains.com/issue/KT-11455) Fix Evaluate Expression behavior for files with errors in sources
- [KT-10670](https://youtrack.jetbrains.com/issue/KT-10670) Fix Evaluate Expression behavior for inline functions with default parameters
- [KT-11380](https://youtrack.jetbrains.com/issue/KT-11380) Evaluate Expression now handles smart casts correctly
- [KT-10148](https://youtrack.jetbrains.com/issue/KT-10148) Do not suggest methods from outer context in "Smart step into"
- Fix Evaluate Expression for expression created for array element
- Complete private members from libraries in Evaluate Expression
- [KT-11578](https://youtrack.jetbrains.com/issue/KT-11578) Evaluate Expression: do not highlight completion variants from nullable receiver with grey
- [KT-6805](https://youtrack.jetbrains.com/issue/KT-6805) Convert Java expression to Kotlin when opening Evaluate Expression from Variables view
- [KT-11927](https://youtrack.jetbrains.com/issue/KT-11927) Fix "ambiguous import" error when invoking Evaluate Expression from Variables view for some field
- [KT-11831](https://youtrack.jetbrains.com/issue/KT-11831) Fix Evaluate Expression for values of raw types
- Show error message when debug info for some local variable is corrupted
- Avoid 1s delay in completion in debugger fields if session is not stopped on a breakpoint
- Avoid cast to runtime type unavailable in current scope
- Fix text with line breaks in popup with line breakpoint variants
- Fix breakpoints inside inline functions in libraries sources
- Allow breakpoints at catch clause declaration
- [KT-11848](https://youtrack.jetbrains.com/issue/KT-11848) Fix breakpoints inside generic crossinline lambda argument body
- [KT-11932](https://youtrack.jetbrains.com/issue/KT-11932) Fix Step Over for `while` loop condition

### Java to Kotlin converter

- Protected members used outside of inheritors are converted as public
- Support conversion for annotation constructor calls
- Place comments from the middle of the call to the end
- Drop line breaks between operator arguments (except `+`, `-`, `&&` and `||`)
- Add non-null assertions on call site for non-null parameters
- Specify type for variables with anonymous type if they have write accesses
- [KT-11587](https://youtrack.jetbrains.com/issue/KT-11587) Fix conversion of static field accesses from other Java class
- [KT-6800](https://youtrack.jetbrains.com/issue/KT-6800) Quote `$` symbols in converted strings
- [KT-11126](https://youtrack.jetbrains.com/issue/KT-11126) Convert annotations in annotations parameters correctly
- [KT-11600](https://youtrack.jetbrains.com/issue/KT-11600) Do not produce unresolved `toArray` calls for Java `Collection#toArray(T[])`
- [KT-11544](https://youtrack.jetbrains.com/issue/KT-11544) Fix conversion of uninitialized non-final field
- [KT-10604](https://youtrack.jetbrains.com/issue/KT-10604) Fix conversion of scratch files
- [KT-11543](https://youtrack.jetbrains.com/issue/KT-11543) Do not produce unnecessary casts of non-nullable expression to nullable type
- [KT-11160](https://youtrack.jetbrains.com/issue/KT-11160) Fix IDE freeze

### Android

- [KT-7729](https://youtrack.jetbrains.com/issue/KT-7729) Add Android Lint checks for Kotlin (from Android Studio 1.5)
- [KT-11487](https://youtrack.jetbrains.com/issue/KT-11487) Fixed sequential build with kapt and stubs enabled when Kotlin source file was modified and no Java source files were modified
- [KT-11264](https://youtrack.jetbrains.com/issue/KT-11264) Action to create new activity in Kotlin
- [KT-11201](https://youtrack.jetbrains.com/issue/KT-11201) Do not ignore items with similar names in kapt
- [KT-11944](https://youtrack.jetbrains.com/issue/KT-11944) Rename Android Extensions imports when the layout file is renamed/deleted/added
- [KT-10321](https://youtrack.jetbrains.com/issue/KT-10321) Do not upcast ViewStub to View
- [KT-10841](https://youtrack.jetbrains.com/issue/KT-10841) Support `@android:id/*` IDs in Android Extensions

### Maven

- [KT-2917](https://youtrack.jetbrains.com/issue/KT-2917), [KT-11261](https://youtrack.jetbrains.com/issue/KT-11261) Maven archetype for new Kotlin projects

### Gradle

- [KT-8487](https://youtrack.jetbrains.com/issue/KT-8487) Experimental support for incremental compilation with project property `kotlin.incremental`
- [KT-11350](https://youtrack.jetbrains.com/issue/KT-11350) Fixed a bug causing Java rebuild when both Java and Kotlin are up-to-date
- [KT-10507](https://youtrack.jetbrains.com/issue/KT-10507) Fix IllegalArgumentException "Missing extension point" on parallel builds
- [KT-10932](https://youtrack.jetbrains.com/issue/KT-10932) Prevent compile tasks from running when nothing changes
- [KT-11993](https://youtrack.jetbrains.com/issue/KT-11993) Fix NoSuchMethodError on access to internal members in production from tests (IDEA 2016+)

## 1.0.1-2

### Compiler

- [KT-11584](https://youtrack.jetbrains.com/issue/KT-11584), [KT-11514](https://youtrack.jetbrains.com/issue/KT-11514) Correct comparison of Long! / Double! with integer constant
- [KT-11590](https://youtrack.jetbrains.com/issue/KT-11590) SAM adapter for inline function corrected

## 1.0.1-1

### Compiler

- [KT-11468](https://youtrack.jetbrains.com/issue/KT-11468) More correct use-site / declaration-site variance combination handling
- [KT-11478](https://youtrack.jetbrains.com/issue/KT-11478) "Couldn't inline method call" internal compiler error fixed

## 1.0.1

### Compiler

Analysis & diagnostics issues fixed:

- [KT-2277](https://youtrack.jetbrains.com/issue/KT-2277) Local function declarations are now checked for overload conflicts
- [KT-3602](https://youtrack.jetbrains.com/issue/KT-3602)  Special diagnostic is reported now on nullable ‘for’ range
- [KT-10775](https://youtrack.jetbrains.com/issue/KT-10775) No compilation exception for empty when
- [KT-10952](https://youtrack.jetbrains.com/issue/KT-10952) False deprecation warnings removed
- [KT-10934](https://youtrack.jetbrains.com/issue/KT-10934) Type inference improved for whens
- [KT-10902](https://youtrack.jetbrains.com/issue/KT-10902) Redeclaration is reported for top-level property vs classifier conflict
- [KT-9985](https://youtrack.jetbrains.com/issue/KT-9985)  Correct handling of safe call arguments in generic functions
- [KT-10856](https://youtrack.jetbrains.com/issue/KT-10856) Diagnostic about projected out member is reported correctly on calls with smart cast receiver
- [KT-5190](https://youtrack.jetbrains.com/issue/KT-5190)  Calls of Java 8 Stream.collect
- [KT-11109](https://youtrack.jetbrains.com/issue/KT-11109) Warning is reported on Strictfp annotation on a class because it's not supported yet
- [KT-10686](https://youtrack.jetbrains.com/issue/KT-10686) Support generic constructors defined in Java
- [KT-6958](https://youtrack.jetbrains.com/issue/KT-6958)  Fixed resolution for overloaded functions with extension lambdas
- [KT-10765](https://youtrack.jetbrains.com/issue/KT-10765) Correct handling of overload conflict between constructor and function in JPS
- [KT-10752](https://youtrack.jetbrains.com/issue/KT-10752) If inferred type for an expression refers to a non-accessible Java class, it's a compiler error to prevent IAE in runtime
- [KT-7415](https://youtrack.jetbrains.com/issue/KT-7415) Approximation of captured types in signatures
- [KT-10913](https://youtrack.jetbrains.com/issue/KT-10913), [KT-10186](https://youtrack.jetbrains.com/issue/KT-10186), [KT-5198](https://youtrack.jetbrains.com/issue/KT-5198) False “unreachable code” fixed for various situations
- Minor: [KT-3680](https://youtrack.jetbrains.com/issue/KT-3680), [KT-9702](https://youtrack.jetbrains.com/issue/KT-9702), [KT-8776](https://youtrack.jetbrains.com/issue/KT-8776), [KT-6745](https://youtrack.jetbrains.com/issue/KT-6745), [KT-10919](https://youtrack.jetbrains.com/issue/KT-10919), [KT-9548](https://youtrack.jetbrains.com/issue/KT-9548)

JVM code generation issues fixed:

- [KT-11153](https://youtrack.jetbrains.com/issue/KT-11153) NoClassDefFoundError is fixed on primitive iterators during boxing optimization
- [KT-7319](https://youtrack.jetbrains.com/issue/KT-7319)  Correct parameter names for @JvmOverloads-generated methods
- [KT-10425](https://youtrack.jetbrains.com/issue/KT-10425) Non-const values of member properties are not inlined now
- [KT-11163](https://youtrack.jetbrains.com/issue/KT-11163) Correct calls of custom compareTo on primitives
- [KT-11081](https://youtrack.jetbrains.com/issue/KT-11081) Reified type parameters are correctly stored in anonymous objects
- [KT-11121](https://youtrack.jetbrains.com/issue/KT-11121) Generic properties generation is fixed for interfaces
- [KT-11285](https://youtrack.jetbrains.com/issue/KT-11285), [KT-10958](https://youtrack.jetbrains.com/issue/KT-10958) Special bridge generation refined
- [KT-10313](https://youtrack.jetbrains.com/issue/KT-10313), [KT-11190](https://youtrack.jetbrains.com/issue/KT-11190), [KT-11192](https://youtrack.jetbrains.com/issue/KT-11192), [KT-11130](https://youtrack.jetbrains.com/issue/KT-11130) Diagnostics and bytecode fixed for various operations with Long
- [KT-11203](https://youtrack.jetbrains.com/issue/KT-11203), [KT-11191](https://youtrack.jetbrains.com/issue/KT-11191), [KT-11206](https://youtrack.jetbrains.com/issue/KT-11206), [KT-8505](https://youtrack.jetbrains.com/issue/KT-8505), [KT-11203](https://youtrack.jetbrains.com/issue/KT-11203) Handling of increment / decrement for collection elements with user-defined get / set fixed
- [KT-9739](https://youtrack.jetbrains.com/issue/KT-9739)  Backticked names with spaces are generated correctly

JS translator issues fixed:

- [KT-7683](https://youtrack.jetbrains.com/issue/KT-7683), [KT-11027](https://youtrack.jetbrains.com/issue/KT-11027) correct handling of in / !in inside when expressions

### Standard library

- [KT-10579](https://youtrack.jetbrains.com/issue/KT-10579) Improved performance of sum() and average() for arrays
- [KT-10821](https://youtrack.jetbrains.com/issue/KT-10821) Improved performance of drop() / take() for sequences

### Reflection

- [KT-10840](https://youtrack.jetbrains.com/issue/KT-10840) Fix annotations on Java elements in reflection

### IDE

New features:

- Compatibility with IDEA 2016
- Kotlin Education Plugin (for IDEA 2016)
- [KT-9752](https://youtrack.jetbrains.com/issue/KT-9752)  More usable file chooser for "Move declaration to another file"
- [KT-9697](https://youtrack.jetbrains.com/issue/KT-9697)  Move method to companion object and back
- [KT-7443](https://youtrack.jetbrains.com/issue/KT-7443) Inspection + intention to replace assert (x != null) with "!!" or elvis

General issues fixed:

- [KT-11277](https://youtrack.jetbrains.com/issue/KT-11277) Correct moving of Java classes from project view
- [KT-11256](https://youtrack.jetbrains.com/issue/KT-11256) Navigate Declaration fixed for Java classes with @NotNull parameter in constructor
- [KT-10553](https://youtrack.jetbrains.com/issue/KT-10553) A warning provided when Refactor / Move result is not compilable due to visibility problems
- [KT-11039](https://youtrack.jetbrains.com/issue/KT-11039) Parameter names are now not missing in parameter info and completion for compiled java code used from kotlin
- [KT-10204](https://youtrack.jetbrains.com/issue/KT-10204) Highlight usages in file is working now for function parameter
- [KT-10954](https://youtrack.jetbrains.com/issue/KT-10954) Introduce Parameter (Ctrl+Alt+P) fixed when default value is a simple name reference
- [KT-10776](https://youtrack.jetbrains.com/issue/KT-10776) Intentions: "Convert to lambda expression" works now for empty function body
- [KT-10815](https://youtrack.jetbrains.com/issue/KT-10815) Generate equals() and hashCode() is no more suggested for interfaces
- [KT-10818](https://youtrack.jetbrains.com/issue/KT-10818) "Initialize with constructor parameter" fixed
- [KT-8876](https://youtrack.jetbrains.com/issue/KT-8876) "Convert member to extension" now removes modality modifiers (open / final)
- [KT-10800](https://youtrack.jetbrains.com/issue/KT-10800) Create enum entry now adds comma after a new entry
- [KT-10552](https://youtrack.jetbrains.com/issue/KT-10552) Pull Members Up now takes visibility conflicts into account
- [KT-10978](https://youtrack.jetbrains.com/issue/KT-10978) Partially fixed, completion for JOOQ became ~ 10 times faster
- [KT-10940](https://youtrack.jetbrains.com/issue/KT-10940) Reference search optimized for convention functions
- [KT-9026](https://youtrack.jetbrains.com/issue/KT-9026)  Editor no more locks up during scala file viewing
- [KT-11142](https://youtrack.jetbrains.com/issue/KT-11142), [KT-11276](https://youtrack.jetbrains.com/issue/KT-11276) Darkula scheme appearance corrected for Kotlin
- Minor: [KT-10778](https://youtrack.jetbrains.com/issue/KT-10778), [KT-10763](https://youtrack.jetbrains.com/issue/KT-10763), [KT-10908](https://youtrack.jetbrains.com/issue/KT-10908), [KT-10345](https://youtrack.jetbrains.com/issue/KT-10345), [KT-10696](https://youtrack.jetbrains.com/issue/KT-10696), [KT-11041](https://youtrack.jetbrains.com/issue/KT-11041), [KT-9434](https://youtrack.jetbrains.com/issue/KT-9434), [KT-8744](https://youtrack.jetbrains.com/issue/KT-8744), [KT-9738](https://youtrack.jetbrains.com/issue/KT-9738), [KT-10912](https://youtrack.jetbrains.com/issue/KT-10912)

Configuration issues fixed:

- [KT-11213](https://youtrack.jetbrains.com/issue/KT-11213) Kotlin plugin version corrected in build.gradle
- [KT-10918](https://youtrack.jetbrains.com/issue/KT-10918) "Update Kotlin runtime" action does not try to update the runtime coming in from Gradle
- [KT-11072](https://youtrack.jetbrains.com/issue/KT-11072) Libraries in maven, gradle and ide systems are never more detected as runtime libraries
- [KT-10489](https://youtrack.jetbrains.com/issue/KT-10489) Configuration messages are aggregated into one notification
- [KT-10831](https://youtrack.jetbrains.com/issue/KT-10831) Configure Kotlin in Project: "All modules containing Kotlin files" does not list modules not containing Kotlin files
- [KT-10366](https://youtrack.jetbrains.com/issue/KT-10366) Gradle import: no fake "Configure Kotlin" notification on project creating

Debugger issues fixed:

- [KT-10827](https://youtrack.jetbrains.com/issue/KT-10827) Fixed debugger stepping for inline calls
- [KT-10780](https://youtrack.jetbrains.com/issue/KT-10780) Breakpoints in a lazy property work correctly
- [KT-10634](https://youtrack.jetbrains.com/issue/KT-10634) Watches can now use private overloaded functions
- [KT-10611](https://youtrack.jetbrains.com/issue/KT-10611) Line breakpoints now can be created inside lambda in init block
- [KT-10673](https://youtrack.jetbrains.com/issue/KT-10673) Breakpoints inside lambda are no more ignored in presence of crossinline function parameter
- [KT-11318](https://youtrack.jetbrains.com/issue/KT-11318) Stepping inside for each is optimized
- [KT-3873](https://youtrack.jetbrains.com/issue/KT-3873)  Editing code while standing on breakpoint is optimized
- [KT-7261](https://youtrack.jetbrains.com/issue/KT-7261), [KT-7266](https://youtrack.jetbrains.com/issue/KT-7266), [KT-10672](https://youtrack.jetbrains.com/issue/KT-10672) Evaluate expression applicability corrected

### Tools

- [KT-7943](https://youtrack.jetbrains.com/issue/KT-7943), [KT-10127](https://youtrack.jetbrains.com/issue/KT-10127) Overhead removed in Kotlin Gradle Plugin
- [KT-11351](https://youtrack.jetbrains.com/issue/KT-11351) Fixed NoSuchMethodError with Gradle 2.12