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What's New In This Release

Major Changes to Core OS

Sched

  • #16148 Sched small sem cleanups
  • #16394 sched: Add max delay tick limitation for wdog/wqueue.
  • #16389 sched: Remove checking of WDOG_ISACTIVE when cancelling wdog
  • #15998 sched: simplify call of get current tcb
  • #16262 sched/affinity: Fix CPU_LOCKED functionality for some SMP calls
  • #16134 sched/gettid: Move thread ID to TLS
  • #15951 sched/init: Fix build error with CONFIG_BOARD_CRASHDUMP_CUSTOM
  • #16113 sched/mutex: add ticked lock version for mutex/rmutex
  • #16329 sched/queue: fix typo in dq_insert_mid macro
  • #15982 sched/sem_waitirq: Move kmm_map() call to sem_wait()
  • #16334 sched/signal: Fix signal delivered to a wrong thread
  • #16333 sched/signal: signal dispatch cleanups
  • #16301 sched/signal/sig_dispatch: Fix a race condition between nxsig_tcbdispatch and nxsig_deliver
  • #16383 sched/timedwait: Ensure critical section for nxsig_timeout
  • #15937 sched/wdog: Support for periodic wdog.
  • #16343 sched/wdog: watchdog timer improvements.
  • #16342 sched/wqueue: Fix wd_cancel_sync and improve work_queue performance.
  • #16231 sched/wqueue: Refactor delayed and periodic workqueue.

libs

  • #16130 libc/arm: optimize crc32/crc32c for arm
  • #16311 libc/backtrace: Fix compilation error when set LIBC_BACKTRACE_BUFFSIZE
  • #16374 libc/fdcheck: fix issue about  a double close check
  • #16149 libc/semaphore: Read semaphore value by using NXSEM_COUNT macro
  • #15944 libc/strings: fix compile warning if enable -Wshadow
  • #16142 libs/libc/crc16: add some comments for crc16ccitt
  • #16143 libs/libc/crc16: add support of CRC-16/ANSI(aka CRC-16/IBM)
  • #16360 libs/libc/semaphore: Enable semaphore fast wait/post paths for counting semaphores
  • #16147 libs/libc/crc16: Separate implementation of crc16xmodem from crc16

tools

  • #16241 tools: Update Unix.mk for CONFIG_ARCH_BOARD_COMMON
  • #16000 tools/bdf-converter: Fix loop termination condition.
  • #16015 tools/checkpatch: Use gmake on BSD, make otherwise.
  • #16402 tools/CMakeLists.txt: Improvements to CMakeLists.txt file
  • #16413 tools/Config.mk: add -DHAVE_STRNDUP=1
  • #16452 tools/doreleasenotes.py: remove deprecater API
  • #15854 tools/espressif: Improve version checking by subprocess
  • #16169 tools/host_info_dump.py: fix UnboundLocalError: local variable 'vendor_specific_module_path' referenced before assignment
  • #15953 tools/mksyscall: fix 106: Unexpected end of line: "FAR char * co"
  • #16396 tools/nxstyle.c: fix error Relative file path on Windows Native
  • #16426 tools/nxstyle.c: fix defined but not used warning
  • #16313 tools/process_config: remove unused unnecessary printing

Architectural Support

New Architecture Support

Improvements

Driver Support

New Driver Support

Drivers With Significant Improvements

Board Support

New Board Support

Boards With Significant Improvements

File System

Bug Fixes

Significant Improvements

Networking

Improvements

Bug Fixes

Security Issues Fixed In This Release

Compatibility Concerns

Changes to Build System

Renamed or Modified Kconfig Options

Known Problems In This Release

More Information

How to Download

Release artifacts for all current and past NuttX releases can be downloaded at:

How to Clone the Git Repository

The Apache NuttX project uses Git SCM as its version control system.

There are two primary repositories:

  • nuttx - The real time operating system itself.
  • apps - Optional applications and example programs for the operating system. You can use this repository or make your own custom one.

The main "Single Source of Truth" repositories are hosted by the ASF:

These are synchronized with repositories hosted at GitHub:

How to Contact the Community

The main forum for project communication, to ask a question, get involved, or contribute to NuttX, is our mailing list, dev@nuttx.apache.org. The list is publicly archived and searchable at https://lists.apache.org/list.html?dev@nuttx.apache.org. For more information, see NuttX Community.

Enthusiastic Contributors Welcome!

NuttX is a free open-source project. If you'd like to participate, whether it's to enhance documentation (even these release notes) or dive into the nitty gritty of some low-level drivers, please join us! You can join the conversation at our dev mailing list by emailing dev-subscribe@nuttx.apache.org. The mailing list is open to the public and archived. You can browse older messages at https://lists.apache.org/list.html?dev@nuttx.apache.org.



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