| :orphan: |
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| .. _zephyr_4.1: |
| |
| Zephyr 4.1.0 (Working Draft) |
| ############################ |
| |
| We are pleased to announce the release of Zephyr version 4.1.0. |
| |
| Major enhancements with this release include: |
| |
| An overview of the changes required or recommended when migrating your application from Zephyr |
| v4.0.0 to Zephyr v4.1.0 can be found in the separate :ref:`migration guide<migration_4.1>`. |
| |
| The following sections provide detailed lists of changes by component. |
| |
| Security Vulnerability Related |
| ****************************** |
| The following CVEs are addressed by this release: |
| |
| More detailed information can be found in: |
| https://docs.zephyrproject.org/latest/security/vulnerabilities.html |
| |
| API Changes |
| *********** |
| |
| * Stream Flash initialization function :c:func:`stream_flash_init` no longer does |
| device size autodetection and instead requires user to explicitly provide size |
| of area available for Stream Flash instance operation. |
| |
| Removed APIs in this release |
| ============================ |
| |
| * The deprecated Bluetooth HCI driver API has been removed. It has been replaced by a |
| :c:group:`new API<bt_hci_api>` that follows the normal Zephyr driver model. |
| * The deprecated ``CAN_MAX_STD_ID`` (replaced by :c:macro:`CAN_STD_ID_MASK`) and ``CAN_MAX_EXT_ID`` |
| (replaced by :c:macro:`CAN_EXT_ID_MASK`) CAN API macros have been removed. |
| * The deprecated ``can_get_min_bitrate()`` (replaced by :c:func:`can_get_bitrate_min`) and |
| ``can_get_max_bitrate()`` (replaced by :c:func:`can_get_bitrate_max`) CAN API functions have been |
| removed. |
| * The deprecated ``can_calc_prescaler()`` CAN API function has been removed. |
| |
| Deprecated in this release |
| ========================== |
| |
| * Deprecated the :c:func:`bt_le_set_auto_conn` API function. Application developers can achieve |
| the same functionality in their application code by reconnecting to the peer when the |
| :c:member:`bt_conn_cb.disconnected` callback is invoked. |
| |
| * Deprecated TinyCrypt library. The reasons for this are (:github:`43712`): |
| |
| * The upstream version of this library is no longer maintained. |
| * Reducing the number of cryptographic libraries in Zephyr to reduce maintenance overhead. |
| * The PSA Crypto API is the recommended cryptographic library for Zephyr. |
| |
| Architectures |
| ************* |
| |
| * Common |
| |
| * Introduced :kconfig:option:`CONFIG_ARCH_HAS_CUSTOM_CURRENT_IMPL`, which can be selected when |
| an architecture implements :c:func:`arch_current_thread` and |
| :c:func:`arch_current_thread_set` functions for faster retrieval of the current CPU's thread |
| pointer. When enabled, the ``_current`` symbol will be routed to |
| :c:func:`arch_current_thread` (:github:`80716`). |
| |
| * ARC |
| |
| * ARM |
| |
| * ARM64 |
| |
| * RISC-V |
| |
| * Implements :c:func:`arch_current_thread_set` & :c:func:`arch_current_thread`, which can be enabled |
| by :kconfig:option:`CONFIG_RISCV_CURRENT_VIA_GP` (:github:`80716`). |
| |
| * Xtensa |
| |
| * native/POSIX |
| |
| * :kconfig:option:`CONFIG_NATIVE_APPLICATION` has been deprecated. |
| * For the native_sim target :kconfig:option:`CONFIG_NATIVE_SIM_NATIVE_POSIX_COMPAT` has been |
| switched to ``n`` by default, and this option has been deprecated. |
| |
| Kernel |
| ****** |
| |
| Bluetooth |
| ********* |
| |
| * Audio |
| |
| * Host |
| |
| * :kconfig:option:`CONFIG_BT_BUF_ACL_RX_COUNT` has been deprecated and |
| :kconfig:option:`CONFIG_BT_BUF_ACL_RX_COUNT_EXTRA` has been added. |
| |
| * HCI Drivers |
| |
| * Mesh |
| |
| * Introduced a :c:member:`bt_mesh_health_cli::update` callback which is used to update the message |
| published periodically. |
| |
| Boards & SoC Support |
| ******************** |
| |
| * Added support for these SoC series: |
| |
| * Added Raspberry Pi RP2350 |
| |
| * Made these changes in other SoC series: |
| |
| * Added support for these boards: |
| |
| * :zephyr:board:`Raspberry Pi Pico 2 <rpi_pico2>`: ``rpi_pico2`` |
| * :zephyr:board:`Adafruit QT Py ESP32-S3 <adafruit_qt_py_esp32s3>`: ``adafruit_qt_py_esp32s3`` |
| |
| * Made these board changes: |
| |
| * All HWMv1 board name aliases which were added as deprecated in v3.7 are now removed |
| (:github:`82247`). |
| * ``mimxrt1050_evk`` and ``mimxrt1060_evk`` revisions for ``qspi`` and ``hyperflash`` have been |
| converted into variants. ``mimxrt1060_evkb`` has been converted into revision ``B`` of |
| ``mimxrt1060_evk``. |
| * Enabled USB, RTC on NXP ``frdm_mcxn236`` |
| |
| * Added support for the following shields: |
| |
| Build system and Infrastructure |
| ******************************* |
| |
| * Space-separated lists support has been removed from Twister configuration |
| files. This feature was deprecated a long time ago. Projects that do still use |
| them can use the :zephyr_file:`scripts/utils/twister_to_list.py` script to |
| automatically migrate Twister configuration files. |
| |
| * Twister |
| |
| * Test Case names for Ztest now include Ztest suite name, so the resulting identifier has |
| three sections and looks like: ``<test_scenario_name>.<ztest_suite_name>.<ztest_name>``. |
| These extended identifiers are used in log output, twister.json and testplan.json, |
| as well as for ``--sub-test`` command line parameters (:github:`80088`). |
| * The ``--no-detailed-test-id`` command line option also shortens Ztest Test Case names excluding |
| its Test Scenario name prefix which is the same as the parent Test Suite id (:github:`82302`). |
| Twister XML reports have full testsuite name as ``testcase.classname property`` resolving |
| possible duplicate testcase elements in ``twister_report.xml`` testsuite container. |
| |
| Drivers and Sensors |
| ******************* |
| |
| * ADC |
| |
| * Battery |
| |
| * CAN |
| |
| * Charger |
| |
| * Clock control |
| |
| * Counter |
| |
| * DAC |
| |
| * Disk |
| |
| * Display |
| |
| * Added flag ``frame_incomplete`` to ``display_write`` that indicates whether a write is the last |
| write of the frame, allowing display drivers to implement double buffering / tearing enable |
| signal handling (:github:`81250`) |
| * Added ``frame_incomplete`` handling to SDL display driver (:dtcompatible:`zephyr,sdl-dc`) |
| (:github:`81250`) |
| * Added transparency support to SDL display driver (:dtcompatible:`zephyr,sdl-dc`) (:github:`81184`) |
| |
| * Ethernet |
| |
| * Flash |
| |
| * NXP MCUX FlexSPI: Add support for 4-byte addressing mode of Micron MT25Q flash family (:github:`82532`) |
| |
| * FPGA |
| |
| * Extracted from :dtcompatible:`lattice,ice40-fpga` the compatible and driver for |
| :dtcompatible:`lattice,ice40-fpga-bitbang`. This replaces the original ``load_mode`` property from |
| the binding, which selected either the SPI or GPIO bitbang load mode. |
| |
| * GNSS |
| |
| * GPIO |
| |
| * Hardware info |
| |
| * I2C |
| |
| * I2S |
| |
| * I3C |
| |
| * Input |
| |
| * LED |
| |
| * Added a new set of devicetree based LED APIs, see :c:struct:`led_dt_spec`. |
| * lp5569: added use of auto-increment functionality. |
| * lp5569: implemented ``write_channels`` api. |
| * lp5569: demonstrate ``led_write_channels`` in the sample. |
| |
| * LED Strip |
| |
| * LoRa |
| |
| * Mailbox |
| |
| * MDIO |
| |
| * MFD |
| |
| * Modem |
| |
| * MIPI-DBI |
| |
| * MSPI |
| |
| * Pin control |
| |
| * Added new driver for Silabs Series 2 (:dtcompatible:`silabs,dbus-pinctrl`). |
| |
| * PWM |
| |
| * Regulators |
| |
| * Reset |
| |
| * RTC |
| |
| * RTIO |
| |
| * SDHC |
| |
| * Sensors |
| |
| * Serial |
| |
| * SPI |
| |
| * Stepper |
| |
| * Added driver for ADI TMC2209. :dtcompatible:`adi,tmc2209`. |
| * Added driver for TI DRV8424. :dtcompatible:`ti,drv8424`. |
| * Added :kconfig:option:`CONFIG_STEP_DIR_STEPPER` to enable common functions for step/dir steppers. |
| |
| * USB |
| |
| * Video |
| |
| * Changed :file:`include/zephyr/drivers/video-controls.h` to have control IDs (CIDs) matching |
| those present in the Linux kernel. |
| |
| * Watchdog |
| |
| * Added :kconfig:option:`CONFIG_HAS_WDT_NO_CALLBACKS` which drivers select when they do not support |
| a callback being provided in :c:struct:`wdt_timeout_cfg`. |
| |
| * Wi-Fi |
| |
| Networking |
| ********** |
| |
| * ARP: |
| |
| * CoAP: |
| |
| * Connection manager: |
| |
| * DHCPv4: |
| |
| * DHCPv6: |
| |
| * DNS/mDNS/LLMNR: |
| |
| * gPTP/PTP: |
| |
| * HTTP: |
| |
| * IPSP: |
| |
| * IPv4: |
| |
| * IPv6: |
| |
| * LwM2M: |
| |
| * Misc: |
| |
| * MQTT: |
| |
| * Network Interface: |
| |
| * OpenThread: |
| |
| * Removed the implicit enabling of the :kconfig:option:`CONFIG_NVS` Kconfig option by the :kconfig:option:`CONFIG_NET_L2_OPENTHREAD` symbol. |
| |
| * PPP |
| |
| * Shell: |
| |
| * Sockets: |
| |
| * The deprecated :kconfig:option:`CONFIG_NET_SOCKETS_POSIX_NAMES` option has been removed. |
| It was a legacy option and was used to allow user to call BSD socket API while not enabling POSIX API. |
| This removal means that in order to use POSIX API socket calls, one needs to enable the |
| :kconfig:option:`CONFIG_POSIX_API` option. |
| If the application does not want or is not able to enable that option, then the socket API |
| calls need to be prefixed by a ``zsock_`` string. |
| |
| * Syslog: |
| |
| * TCP: |
| |
| * Websocket: |
| |
| * Wi-Fi: |
| |
| * hostap: Removed the unused default Crypto module :kconfig:option:`CONFIG_WIFI_NM_WPA_SUPPLICANT_CRYPTO` Kconfig option. |
| |
| * zperf: |
| |
| USB |
| *** |
| |
| Devicetree |
| ********** |
| |
| * Added :c:macro:`DT_ANY_INST_HAS_BOOL_STATUS_OKAY`. |
| |
| Kconfig |
| ******* |
| |
| Libraries / Subsystems |
| ********************** |
| |
| * Debug |
| |
| * Demand Paging |
| |
| * Formatted output |
| |
| * Management |
| |
| * Logging |
| |
| * Modem modules |
| |
| * Power management |
| |
| * Crypto |
| |
| * The Kconfig symbol :kconfig:option:`CONFIG_MBEDTLS_PSA_STATIC_KEY_SLOTS` was |
| added to allow Mbed TLS to use statically allocated buffers to store key material |
| in its PSA Crypto core instead of heap-allocated ones. This can help reduce |
| (or remove, if no other component makes use of it) heap memory requirements |
| from the final application. |
| |
| * The Kconfig symbol :kconfig:option:`CONFIG_MBEDTLS_PSA_KEY_SLOT_COUNT` was |
| added to allow selecting the number of key slots available in the Mbed TLS |
| implementation of the PSA Crypto core. It defaults to 16. Since each |
| slot consumes RAM memory even if unused, this value can be tweaked in order |
| to minimize RAM usage. |
| |
| * CMSIS-NN |
| |
| * FPGA |
| |
| * Random |
| |
| * SD |
| |
| * State Machine Framework |
| |
| * Storage |
| |
| * Shell: :kconfig:option:`CONFIG_FILE_SYSTEM_SHELL_MOUNT_COMMAND` was added, |
| allowing the mount subcommand to be optionally disabled. This can reduce |
| flash and RAM usage since it requires the heap to be present. |
| |
| * Task Watchdog |
| |
| * POSIX API |
| |
| * LoRa/LoRaWAN |
| |
| * ZBus |
| |
| HALs |
| **** |
| |
| * Nordic |
| |
| * STM32 |
| |
| * ADI |
| |
| * Espressif |
| |
| MCUboot |
| ******* |
| |
| OSDP |
| **** |
| |
| Trusted Firmware-M |
| ****************** |
| |
| LVGL |
| **** |
| |
| * Added ``frame_incomplete`` support to indicate whether a write is the last |
| write of the frame (:github:`81250`) |
| |
| Tests and Samples |
| ***************** |
| |
| * Fixed incorrect alpha values in :zephyr_file:`samples/drivers/display`. (:github:`81184`) |
| * Added :zephyr_file:`samples/modules/lvgl/screen_transparency`. (:github:`81184`) |
| |
| Issue Related Items |
| ******************* |
| |
| Known Issues |
| ============ |
