zephyr/doc/releases/release-notes-2.4.rst
Ioannis Glaropoulos 0292df5489 doc: release: add note for SW_VECTOR_RELAY feature in Mainline Cortex-M
Add a note in 2.4 release notes regarding SW_VECTOR_RELAY
feature, now supported also in Mainline Cortex-M architecture.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2020-07-17 13:22:17 +02:00

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3.4 KiB
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.. _zephyr_2.4:
Zephyr 2.4.0 (Working Draft)
############################
We are pleased to announce the release of Zephyr RTOS version 2.4.0.
Major enhancements with this release include:
* Moved to using C99 integer types and deprecate Zephyr integer types. The
Zephyr types can be enabled by Kconfig DEPRECATED_ZEPHYR_INT_TYPES option.
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
Known issues
************
You can check all currently known issues by listing them using the GitHub
interface and listing all issues with the `bug label
<https://github.com/zephyrproject-rtos/zephyr/issues?q=is%3Aissue+is%3Aopen+label%3Abug>`_.
API Changes
***********
* Moved to using C99 integer types and deprecate Zephyr integer types. The
Zephyr types can be enabled by Kconfig DEPRECATED_ZEPHYR_INT_TYPES option.
* The ``<sys/util.h>`` header has been promoted to a documented API with
:ref:`experimental stability <api_lifecycle>`. See :ref:`util_api` for an API
reference.
* The :c:func:`wdt_feed` function will now return ``-EAGAIN`` if
issuing a feed would stall the caller. Application code may need to
ignore this diagnostic result or initiate another feed operation
later.
Deprecated in this release
==========================
Removed APIs in this release
============================
* Other
* The deprecated ``MACRO_MAP`` macro has been removed from the
:ref:`util_api`. Use ``FOR_EACH`` instead.
Stable API changes in this release
==================================
Kernel
******
Architectures
*************
* ARC:
* ARM:
* Interrupt vector relaying feature support is extended to Cortex-M Mainline
architecture variants
* POSIX:
* RISC-V:
* x86:
Boards & SoC Support
********************
* Added support for these SoC series:
* Added support for these ARM boards:
* Made these changes in other boards
* Added support for these following shields:
Drivers and Sensors
*******************
* ADC
* Audio
* Bluetooth
* CAN
* Clock Control
* Console
* Counter
* Crypto
* DAC
* Debug
* Display
* DMA
* EEPROM
* Entropy
* ESPI
* Ethernet
* Flash
* GPIO
* Hardware Info
* I2C
* I2S
* IEEE 802.15.4
* Interrupt Controller
* IPM
* Keyboard Scan
* LED
* LED Strip
* LoRa
* Modem
* PECI
* Pinmux
* PS/2
* PWM
* Sensor
* Serial
* SPI
* Timer
* USB
* Video
* Watchdog
* WiFi
Networking
**********
Bluetooth
*********
* Host:
* BLE split software Controller:
* HCI Driver:
* bt_hci_evt_is_prio() removed, use bt_hci_evt_get_flags() instead when
CONFIG_BT_RECV_IS_RX_THREAD is defined and call bt_recv and bt_recv_prio
when their flag is set, otherwise always call bt_recv().
Build and Infrastructure
************************
* Devicetree
Libraries / Subsystems
**********************
* Disk
* Random
* POSIX subsystem:
* Power management:
HALs
****
* HALs are now moved out of the main tree as external modules and reside in
their own standalone repositories.
Documentation
*************
Tests and Samples
*****************
Issue Related Items
*******************
These GitHub issues were addressed since the previous 2.3.0 tagged
release: