diff --git a/CHANGES.txt b/CHANGES.txt
index fdaa065..88d1df9 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -81,6 +81,16 @@
   * Print full path name of source .proto file on error
   * Include proto message type in the annotation comments.
 
+2022-11-29 version 21.10 (C++/Java/Python/PHP/Objective-C/C#/Ruby)
+
+  Java
+  * Use bit-field int values in buildPartial to skip work on unset groups of fields. (#10960)
+  * Mark nested builder as clean after clear is called (#10984)
+  UPB
+  * Fix UPB_LIKELY() for 32-bit Windows builds; update protobuf_deps to point to the current upb 21.x (#11028)
+  Other
+  * Add public modifiers to kotlin code (#11068)
+
 2022-10-26 version 21.9 (C++/Java/Python/PHP/Objective-C/C#/Ruby)
 
   C++
diff --git a/Protobuf-C++.podspec b/Protobuf-C++.podspec
index 22da2c1..9fad46b 100644
--- a/Protobuf-C++.podspec
+++ b/Protobuf-C++.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name     = 'Protobuf-C++'
-  s.version  = '3.21.9'
+  s.version  = '3.21.10'
   s.summary  = 'Protocol Buffers v3 runtime library for C++.'
   s.homepage = 'https://github.com/google/protobuf'
   s.license  = 'BSD-3-Clause'
diff --git a/Protobuf.podspec b/Protobuf.podspec
index 7f003c3..3188764 100644
--- a/Protobuf.podspec
+++ b/Protobuf.podspec
@@ -5,7 +5,7 @@
 # dependent projects use the :git notation to refer to the library.
 Pod::Spec.new do |s|
   s.name     = 'Protobuf'
-  s.version  = '3.21.9'
+  s.version  = '3.21.10'
   s.summary  = 'Protocol Buffers v.3 runtime library for Objective-C.'
   s.homepage = 'https://github.com/protocolbuffers/protobuf'
   s.license  = 'BSD-3-Clause'
diff --git a/csharp/Google.Protobuf.Tools.nuspec b/csharp/Google.Protobuf.Tools.nuspec
index c909720..9ef830b 100644
--- a/csharp/Google.Protobuf.Tools.nuspec
+++ b/csharp/Google.Protobuf.Tools.nuspec
@@ -5,7 +5,7 @@
     <title>Google Protocol Buffers tools</title>
     <summary>Tools for Protocol Buffers - Google's data interchange format.</summary>
     <description>See project site for more info.</description>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
     <authors>Google Inc.</authors>
     <owners>protobuf-packages</owners>
     <licenseUrl>https://github.com/protocolbuffers/protobuf/blob/main/LICENSE</licenseUrl>
diff --git a/csharp/src/Google.Protobuf/Google.Protobuf.csproj b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
index bed643f..8a156c3 100644
--- a/csharp/src/Google.Protobuf/Google.Protobuf.csproj
+++ b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
@@ -5,7 +5,7 @@
     <Description>C# runtime library for Protocol Buffers - Google's data interchange format.</Description>
     <Copyright>Copyright 2015, Google Inc.</Copyright>
     <AssemblyTitle>Google Protocol Buffers</AssemblyTitle>
-    <VersionPrefix>3.21.9</VersionPrefix>
+    <VersionPrefix>3.21.10</VersionPrefix>
     <LangVersion>10.0</LangVersion>
     <Authors>Google Inc.</Authors>
     <TargetFrameworks>netstandard1.1;netstandard2.0;net45;net50</TargetFrameworks>
diff --git a/java/README.md b/java/README.md
index c9fab25..17de94d 100644
--- a/java/README.md
+++ b/java/README.md
@@ -23,7 +23,7 @@
 <dependency>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-java</artifactId>
-  <version>3.21.9</version>
+  <version>3.21.10</version>
 </dependency>
 ```
 
@@ -37,7 +37,7 @@
 <dependency>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-java-util</artifactId>
-  <version>3.21.9</version>
+  <version>3.21.10</version>
 </dependency>
 ```
 
@@ -45,7 +45,7 @@
 
 If you are using Gradle, add the following to your `build.gradle` file's dependencies:
 ```
-    implementation 'com.google.protobuf:protobuf-java:3.21.9'
+    implementation 'com.google.protobuf:protobuf-java:3.21.10'
 ```
 Again, be sure to check that the version number matches (or is newer than) the version number of protoc that you are using.
 
diff --git a/java/bom/pom.xml b/java/bom/pom.xml
index 19e23fb..b3389a8 100644
--- a/java/bom/pom.xml
+++ b/java/bom/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-bom</artifactId>
-  <version>3.21.9</version>
+  <version>3.21.10</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [BOM]</name>
diff --git a/java/core/pom.xml b/java/core/pom.xml
index c920d1f..d1bd673 100644
--- a/java/core/pom.xml
+++ b/java/core/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
   </parent>
 
   <artifactId>protobuf-java</artifactId>
diff --git a/java/kotlin-lite/pom.xml b/java/kotlin-lite/pom.xml
index 86da157..c8e2c34 100644
--- a/java/kotlin-lite/pom.xml
+++ b/java/kotlin-lite/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
   </parent>
 
   <artifactId>protobuf-kotlin-lite</artifactId>
diff --git a/java/kotlin/pom.xml b/java/kotlin/pom.xml
index 6ba0f8b..e75d0bf 100644
--- a/java/kotlin/pom.xml
+++ b/java/kotlin/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
   </parent>
 
   <artifactId>protobuf-kotlin</artifactId>
diff --git a/java/lite.md b/java/lite.md
index eef2370..a10e959 100644
--- a/java/lite.md
+++ b/java/lite.md
@@ -29,7 +29,7 @@
 <dependency>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-javalite</artifactId>
-  <version>3.21.9</version>
+  <version>3.21.10</version>
 </dependency>
 ```
 
diff --git a/java/lite/pom.xml b/java/lite/pom.xml
index 6df3415..26603ec 100644
--- a/java/lite/pom.xml
+++ b/java/lite/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
   </parent>
 
   <artifactId>protobuf-javalite</artifactId>
diff --git a/java/pom.xml b/java/pom.xml
index 6cda0a3..dd29244 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-parent</artifactId>
-  <version>3.21.9</version>
+  <version>3.21.10</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [Parent]</name>
diff --git a/java/util/pom.xml b/java/util/pom.xml
index 14209ff..d2baaf4 100644
--- a/java/util/pom.xml
+++ b/java/util/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
   </parent>
 
   <artifactId>protobuf-java-util</artifactId>
diff --git a/php/ext/google/protobuf/protobuf.h b/php/ext/google/protobuf/protobuf.h
index 2568949..a47abf6 100644
--- a/php/ext/google/protobuf/protobuf.h
+++ b/php/ext/google/protobuf/protobuf.h
@@ -127,7 +127,7 @@
   ZEND_ARG_INFO(0, value)
 ZEND_END_ARG_INFO()
 
-#define PHP_PROTOBUF_VERSION "3.21.9"
+#define PHP_PROTOBUF_VERSION "3.21.10"
 
 // ptr -> PHP object cache. This is a weak map that caches lazily-created
 // wrapper objects around upb types:
diff --git a/protobuf_version.bzl b/protobuf_version.bzl
index 3777e23..2ea278c 100644
--- a/protobuf_version.bzl
+++ b/protobuf_version.bzl
@@ -1,4 +1,4 @@
-PROTOC_VERSION = "21.9"
-PROTOBUF_JAVA_VERSION = "3.21.9"
-PROTOBUF_PYTHON_VERSION = "4.21.9"
-PROTOBUF_PHP_VERSION = "3.21.9"
+PROTOC_VERSION = "21.10"
+PROTOBUF_JAVA_VERSION = "3.21.10"
+PROTOBUF_PYTHON_VERSION = "4.21.10"
+PROTOBUF_PHP_VERSION = "3.21.10"
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index e7b197e..e0121a4 100644
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -30,4 +30,4 @@
 
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '4.21.9'
+__version__ = '4.21.10'
diff --git a/ruby/google-protobuf.gemspec b/ruby/google-protobuf.gemspec
index 43933eb..73abc81 100644
--- a/ruby/google-protobuf.gemspec
+++ b/ruby/google-protobuf.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = "google-protobuf"
-  s.version     = "3.21.9"
+  s.version     = "3.21.10"
   git_tag       = "v#{s.version.to_s.sub('.rc.', '-rc')}" # Converts X.Y.Z.rc.N to vX.Y.Z-rcN, used for the git tag
   s.licenses    = ["BSD-3-Clause"]
   s.summary     = "Protocol Buffers"
diff --git a/ruby/pom.xml b/ruby/pom.xml
index 04ffaa8..e5ea175 100644
--- a/ruby/pom.xml
+++ b/ruby/pom.xml
@@ -9,7 +9,7 @@
 
     <groupId>com.google.protobuf.jruby</groupId>
     <artifactId>protobuf-jruby</artifactId>
-    <version>3.21.9</version>
+    <version>3.21.10</version>
     <name>Protocol Buffer JRuby native extension</name>
     <description>
       Protocol Buffers are a way of encoding structured data in an efficient yet
@@ -76,7 +76,7 @@
         <dependency>
           <groupId>com.google.protobuf</groupId>
           <artifactId>protobuf-java-util</artifactId>
-          <version>3.21.9</version>
+          <version>3.21.10</version>
         </dependency>
         <dependency>
             <groupId>org.jruby</groupId>
diff --git a/src/google/protobuf/any.pb.h b/src/google/protobuf/any.pb.h
index 032ac99..82f60be 100644
--- a/src/google/protobuf/any.pb.h
+++ b/src/google/protobuf/any.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/api.pb.h b/src/google/protobuf/api.pb.h
index 8e95525..cfbccf8 100644
--- a/src/google/protobuf/api.pb.h
+++ b/src/google/protobuf/api.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/compiler/plugin.pb.h b/src/google/protobuf/compiler/plugin.pb.h
index 1a9ee52..c4fda8c 100644
--- a/src/google/protobuf/compiler/plugin.pb.h
+++ b/src/google/protobuf/compiler/plugin.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/descriptor.pb.h b/src/google/protobuf/descriptor.pb.h
index fdd94a7..40413f1 100644
--- a/src/google/protobuf/descriptor.pb.h
+++ b/src/google/protobuf/descriptor.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/duration.pb.h b/src/google/protobuf/duration.pb.h
index 6efd4ed..f3cb48b 100644
--- a/src/google/protobuf/duration.pb.h
+++ b/src/google/protobuf/duration.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/empty.pb.h b/src/google/protobuf/empty.pb.h
index 9c0db49..f7f068d 100644
--- a/src/google/protobuf/empty.pb.h
+++ b/src/google/protobuf/empty.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/field_mask.pb.h b/src/google/protobuf/field_mask.pb.h
index 5267c45..d3617da 100644
--- a/src/google/protobuf/field_mask.pb.h
+++ b/src/google/protobuf/field_mask.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/port_def.inc b/src/google/protobuf/port_def.inc
index 74a08c7..056161c 100644
--- a/src/google/protobuf/port_def.inc
+++ b/src/google/protobuf/port_def.inc
@@ -217,7 +217,7 @@
 #ifdef PROTOBUF_VERSION
 #error PROTOBUF_VERSION was previously defined
 #endif
-#define PROTOBUF_VERSION 3021009
+#define PROTOBUF_VERSION 3021010
 
 #ifdef PROTOBUF_MIN_HEADER_VERSION_FOR_PROTOC
 #error PROTOBUF_MIN_HEADER_VERSION_FOR_PROTOC was previously defined
diff --git a/src/google/protobuf/source_context.pb.h b/src/google/protobuf/source_context.pb.h
index 3bf2774..c1468c8 100644
--- a/src/google/protobuf/source_context.pb.h
+++ b/src/google/protobuf/source_context.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/struct.pb.h b/src/google/protobuf/struct.pb.h
index b63b1c4..23e0e87 100644
--- a/src/google/protobuf/struct.pb.h
+++ b/src/google/protobuf/struct.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/stubs/common.h b/src/google/protobuf/stubs/common.h
index 29a0ffc..e81c24f 100644
--- a/src/google/protobuf/stubs/common.h
+++ b/src/google/protobuf/stubs/common.h
@@ -99,7 +99,7 @@
 
 // The current version, represented as a single integer to make comparison
 // easier:  major * 10^6 + minor * 10^3 + micro
-#define GOOGLE_PROTOBUF_VERSION 3021009
+#define GOOGLE_PROTOBUF_VERSION 3021010
 
 // A suffix string for alpha, beta or rc releases. Empty for stable releases.
 #define GOOGLE_PROTOBUF_VERSION_SUFFIX ""
diff --git a/src/google/protobuf/timestamp.pb.h b/src/google/protobuf/timestamp.pb.h
index a2f5e03..7ddb84c 100644
--- a/src/google/protobuf/timestamp.pb.h
+++ b/src/google/protobuf/timestamp.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/type.pb.h b/src/google/protobuf/type.pb.h
index 0dcf3eb..16884af 100644
--- a/src/google/protobuf/type.pb.h
+++ b/src/google/protobuf/type.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."
diff --git a/src/google/protobuf/wrappers.pb.h b/src/google/protobuf/wrappers.pb.h
index 8c4838d..4be9b0b 100644
--- a/src/google/protobuf/wrappers.pb.h
+++ b/src/google/protobuf/wrappers.pb.h
@@ -15,7 +15,7 @@
 #error "your headers."
 #endif  // PROTOBUF_VERSION
 
-#if 3021009 < PROTOBUF_MIN_PROTOC_VERSION
+#if 3021010 < PROTOBUF_MIN_PROTOC_VERSION
 #error "This file was generated by an older version of protoc which is"
 #error "incompatible with your Protocol Buffer headers. Please"
 #error "regenerate this file with a newer version of protoc."