Zephyr 2.7.0 (Working draft)

We are pleased to announce the release of Zephyr RTOS version 2.7.0.

The following sections provide detailed lists of changes by component.

Known issues

You can check all currently known issues by listing them using the GitHub interface and listing all issues with the bug label.

API Changes

Deprecated in this release

Changes in this release

Removed APIs in this release

  • Removed support for the deprecated DEVICE_INIT and DEVICE_AND_API_INIT macros.

  • Removed support for the deprecated BUILD_ASSERT_MSG macro.

  • Removed support for the deprecated GET_ARG1, GET_ARG2 and GET_ARGS_LESS_1 macros.

  • Removed support for the deprecated Kconfig PRINTK64 option.

  • Removed support for the deprecated bt_set_id_addr function.

Stable API changes in this release

Kernel

Architectures

  • ARC

  • ARM

    • AARCH32

      • Added support for FPU in QEMU for Cortex-M, allowing to build and execute tests in CI with FPU and FPU_SHARING options enabled.

    • AARCH64

  • x86

Bluetooth

  • Audio

  • Host

  • Mesh

    • Added return value for opcode callback

  • Bluetooth LE split software Controller

  • HCI Driver

Boards & SoC Support

  • Added support for these SoC series:

  • Removed support for these SoC series:

  • Made these changes in other SoC series:

  • Changes for ARC boards:

  • Added support for these ARM boards:

  • Added support for these ARM64 boards:

  • Removed support for these ARM boards:

  • Removed support for these X86 boards:

  • Made these changes in other boards:

  • Added support for these following shields:

Drivers and Sensors

  • ADC

  • Bluetooth

  • CAN

  • Clock Control

  • Console

  • Counter

  • DAC

    • Added support for Microchip MCP4725

  • Disk

    • Added SDMMC support on STM32L4+

  • Display

    • Added support for ST7735R

  • Disk

  • DMA

    • Added support on STM32G0 and STM32H7

  • EEPROM

    • Added support for EEPROM emulated in flash.

  • ESPI

    • Added support for Microchip eSPI SAF

  • Ethernet

  • Flash

  • GPIO

  • Hardware Info

  • I2C

  • I2S

  • IEEE 802.15.4

  • Interrupt Controller

  • LED

  • LoRa

  • Modem

  • PWM

  • Sensor

  • Serial

  • SPI

  • Timer

  • USB

  • Watchdog

  • WiFi

Networking

  • CoAP:

  • DHCPv4:

  • DNS:

  • HTTP:

  • IPv4:

  • LwM2M:

  • Misc:

  • OpenThread:

  • Socket:

  • TCP:

  • TLS:

USB

Build and Infrastructure

  • Devicetree

  • West (extensions)

Libraries / Subsystems

  • Disk

  • Management

  • CMSIS subsystem

  • Power management

  • Logging

  • Shell

  • Storage

  • Task Watchdog

  • Tracing

  • Debug

  • OS

HALs

  • HALs are now moved out of the main tree as external modules and reside in their own standalone repositories.

Trusted Firmware-m

  • Renamed psa_level_1 sample to psa_crypto. Extended the use of the PSA Cryptography 1.0 API in the sample code to demonstrate additional crypto functionality.

  • Added a new sample to showcase the PSA Protecter Storage service.

Documentation

  • Kconfig options need to be referenced using the :kconfig: Sphinx role. Previous to this change, :option: was used for this purpose.

  • Doxygen alias @config{} has been deprecated in favor of @kconfig{}.

Tests and Samples