2f143fb2c1
Add two new commands that automatically locally host the generated documentation upon completion and rebuild/rehost when the input files change without any user interaction. For more info see: https://pypi.org/project/sphinx-autobuild/ Signed-off-by: Jordan Yates <jordan@embeint.com>
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4.7 KiB
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341 lines
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ReStructuredText
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.. _zephyr_4.0:
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Zephyr 4.0.0 (Working Draft)
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############################
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We are pleased to announce the release of Zephyr version 4.0.0.
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Major enhancements with this release include:
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An overview of the changes required or recommended when migrating your application from Zephyr
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v3.7.0 to Zephyr v4.0.0 can be found in the separate :ref:`migration guide<migration_4.0>`.
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The following sections provide detailed lists of changes by component.
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Security Vulnerability Related
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******************************
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The following CVEs are addressed by this release:
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More detailed information can be found in:
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https://docs.zephyrproject.org/latest/security/vulnerabilities.html
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API Changes
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***********
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* Removed deprecated arch-level CMSIS header files
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``include/zephyr/arch/arm/cortex_a_r/cmsis.h`` and
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``include/zephyr/arch/arm/cortex_m/cmsis.h``. ``cmsis_core.h`` needs to be
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included now.
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* Removed deprecated ``ceiling_fraction`` macro. :c:macro:`DIV_ROUND_UP` needs
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to be used now.
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* Deprecated ``EARLY``, ``APPLICATION`` and ``SMP`` init levels can no longer be
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used for devices.
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Removed APIs in this release
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============================
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* Macro ``K_THREAD_STACK_MEMBER``, deprecated since v3.5.0, has been removed.
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Use :c:macro:`K_KERNEL_STACK_MEMBER` instead.
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Deprecated in this release
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==========================
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* Deprecated the :c:func:`net_buf_put` and :c:func:`net_buf_get` API functions in favor of
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:c:func:`k_fifo_put` and :c:func:`k_fifo_get`.
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Architectures
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*************
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* ARC
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* ARM
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* ARM64
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* RISC-V
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* Xtensa
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Kernel
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******
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Bluetooth
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*********
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* Audio
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* Host
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* Added API :c:func:`bt_gatt_get_uatt_mtu` to get current Unenhanced ATT MTU of a given
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connection (experimental).
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* HCI Drivers
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Boards & SoC Support
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********************
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* Added support for these SoC series:
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* Made these changes in other SoC series:
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* NXP S32Z270: Added support for the new silicon cut version 2.0. Note that the previous
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versions (1.0 and 1.1) are no longer supported.
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* Added support for these boards:
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* Made these board changes:
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* :ref:`native_posix<native_posix>` has been deprecated in favour of
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:ref:`native_sim<native_sim>`.
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* Added support for the following shields:
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Build system and Infrastructure
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*******************************
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Documentation
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*************
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* Added two new build commands, ``make html-live`` and ``make html-live-fast``, that automatically locally
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host the generated documentation. They also automatically rebuild and rehost the documentation when changes
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to the input ``.rst`` files are detected on the filesystem.
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Drivers and Sensors
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*******************
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* ADC
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* Battery
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* CAN
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* Charger
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* Clock control
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* Counter
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* DAC
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* Disk
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* Display
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* Ethernet
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* LiteX: Renamed the ``compatible`` from ``litex,eth0`` to :dtcompatible:`litex,liteeth`.
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* Flash
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* GNSS
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* GPIO
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* Hardware info
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* I2C
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* I2S
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* I3C
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* Input
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* LED
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* lp5569: added ``charge-pump-mode`` property to configure the charge pump of the lp5569.
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* lp5569: added ``enable-gpios`` property to describe the EN/PWM GPIO of the lp5569.
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* LED Strip
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* LoRa
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* Mailbox
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* MDIO
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* MFD
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* Modem
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* MIPI-DBI
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* MSPI
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* Pin control
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* PWM
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* Regulators
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* Reset
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* RTC
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* RTIO
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* SDHC
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* Sensors
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* Serial
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* LiteX: Renamed the ``compatible`` from ``litex,uart0`` to :dtcompatible:`litex,uart`.
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* SPI
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* USB
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* Video
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* Watchdog
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* Wi-Fi
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Networking
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**********
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* ARP:
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* CoAP:
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* Connection manager:
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* DHCPv4:
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* DHCPv6:
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* DNS/mDNS/LLMNR:
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* gPTP/PTP:
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* HTTP:
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* IPSP:
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* IPv4:
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* IPv6:
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* LwM2M:
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* Location object: optional resources altitude, radius, and speed can now be
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used optionally as per the location object's specification. Users of these
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resources will now need to provide a read buffer.
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* Misc:
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* MQTT:
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* Network Interface:
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* OpenThread
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* PPP
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* Shell:
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* Sockets:
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* Syslog:
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* TCP:
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* Websocket:
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* Wi-Fi:
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* zperf:
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USB
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***
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Devicetree
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**********
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Kconfig
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*******
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Libraries / Subsystems
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**********************
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* Debug
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* Demand Paging
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* Formatted output
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* Management
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* MCUmgr
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* Added support for :ref:`mcumgr_smp_group_10`, which allows for listing information on
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supported groups.
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* Logging
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* Modem modules
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* Power management
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* Crypto
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* CMSIS-NN
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* FPGA
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* Random
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* SD
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* State Machine Framework
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* Storage
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* LittleFS: The module has been updated with changes committed upstream
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from version 2.8.1, the last module update, up to and including
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the released version 2.9.3.
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* Task Watchdog
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* POSIX API
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* LoRa/LoRaWAN
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* ZBus
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HALs
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****
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* Nordic
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* STM32
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* ADI
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* Espressif
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MCUboot
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*******
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OSDP
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****
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Trusted Firmware-M
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******************
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LVGL
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****
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Tests and Samples
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*****************
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Issue Related Items
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*******************
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Known Issues
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============
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