* [#8881](https://github.com/apache/nuttx/pull/8881) Correct Real Time signal definitions. #8881
* [#8286](https://github.com/apache/nuttx/pull/8286) sched: Add _NSIG, SIGFPE, SIGILL and SIGSEGV definition
* [#8686](https://github.com/apache/nuttx/pull/8686) sched: add critical section in nxsched_get_stateinfo
* [#8708](https://github.com/apache/nuttx/pull/8708) sched: build error fix in task_exithook
* [#4819](https://github.com/apache/nuttx/pull/4819) sched: Disable stdio api by default when DEFAULT_SMALL equals y
* [#8642](https://github.com/apache/nuttx/pull/8642) sched: fix kconfig warning
* [#8151](https://github.com/apache/nuttx/pull/8151) sched: fix task_delete crash in SMP case
* [#8311](https://github.com/apache/nuttx/pull/8311) sched: fix run ltp_interfaces_sched_setscheduler_17_1 fail
* [#8210](https://github.com/apache/nuttx/pull/8210) sched: Map both NZERO and PTHREAD_DEFAULT_PRIORITY to SCHED_PRIORITY_DEFAULT
* [#8330](https://github.com/apache/nuttx/pull/8330) sched: Map SCHED_OTHER to SCHED_FIFO or SCHED_RR
* [#7882](https://github.com/apache/nuttx/pull/7882) sched: remove unnecessary type cast
* [#8374](https://github.com/apache/nuttx/pull/8374) sched: Remove the unused TCB_FLAG_SCHED_OTHER
* [#7956](https://github.com/apache/nuttx/pull/7956) sched: assert: modify assert message
* [#7957](https://github.com/apache/nuttx/pull/7957) sched: assert: Do not call the user space "exit" function
* [#7952](https://github.com/apache/nuttx/pull/7952) sched: assert: Fix printing argv when address environments are in use
* [#8224](https://github.com/apache/nuttx/pull/8224) sched: assert: sched: Implement tkill/tgkill
* [#8556](https://github.com/apache/nuttx/pull/8556) sched: assert: sync ps/assert output
* [#8897](https://github.com/apache/nuttx/pull/8897) sched: clock_gettime: Remove output log
* [#8653](https://github.com/apache/nuttx/pull/8653) sched: env: add tg_envc in task_group_s to avoid some loops in code
* [#8394](https://github.com/apache/nuttx/pull/8394) sched: getpid: replace syscall getpid/tid/ppid() to kernel version
* [#8066](https://github.com/apache/nuttx/pull/8066) sched: group: fix task info heap-use-after-free
* [#7997](https://github.com/apache/nuttx/pull/7997) sched: group: Fix memory corruption in group_leave.c
* [#8282](https://github.com/apache/nuttx/pull/8282) sched: group: Implement group_drop()
* [#8169](https://github.com/apache/nuttx/pull/8169) sched: group/addrenv: An assorment of fixes to address environment handling (part1)
* [#7995](https://github.com/apache/nuttx/pull/7995) sched: misc: add linux-like reboot notifier list
* [#8035](https://github.com/apache/nuttx/pull/8035) sched: misc: assert: add a last type to call notifier
* [#8158](https://github.com/apache/nuttx/pull/8158) sched: misc: assert: fix build break
* [#8035](https://github.com/apache/nuttx/pull/8035) sched: misc: assert: add a last type to call notifier
* [#8144](https://github.com/apache/nuttx/pull/8144) sched: misc: crash dump message added
* [#7996](https://github.com/apache/nuttx/pull/7996) sched: misc: Rename panic.c to panic_notifier.c
* [#7893](https://github.com/apache/nuttx/pull/7893) sched: note: Change sched_note_[begin|end] to macro
* [#8521](https://github.com/apache/nuttx/pull/8521) sched: nxtask_sigchild: Set exit code when CONFIG_SCHED_CHILD_STATUS=y
* [#8486](https://github.com/apache/nuttx/pull/8486) sched: nxtask_sigchild: Set process exit code to group exit code
* [#8520](https://github.com/apache/nuttx/pull/8520) sched: pthread: change the wrong type cast
* [#8505](https://github.com/apache/nuttx/pull/8505) sched: pthread: check pthread group after find joininfo
* [#7923](https://github.com/apache/nuttx/pull/7923) sched: pthread: Delay pjoininfo allocation time
* [#8150](https://github.com/apache/nuttx/pull/8150) sched: pthread: fix pthread exit error when set DETACHED
* [#8170](https://github.com/apache/nuttx/pull/8170) sched: pthread： fixed pthread issue
* [#8205](https://github.com/apache/nuttx/pull/8205) sched: pthread: Implement more pthread API
* [#8209](https://github.com/apache/nuttx/pull/8209) sched: pthread: Implement pthread_gettid_np
* [#8236](https://github.com/apache/nuttx/pull/8236) sched: pthread: restore C89 compliance in pthread_create
* [#8336](https://github.com/apache/nuttx/pull/8336) sched: pthread: set default pthread name to parent's name
* [#7909](https://github.com/apache/nuttx/pull/7909) sched: pthread: show thread main entry when display thread name
* [#7877](https://github.com/apache/nuttx/pull/7877) sched: release_tcb: Do not release stack for user processes here
* [#8182](https://github.com/apache/nuttx/pull/8182) sched: semaphore: Add the holder for mutex
* [#7934](https://github.com/apache/nuttx/pull/7934) sched: semaphore: check sem flags before enable priority inheritance
* [#8175](https://github.com/apache/nuttx/pull/8175) sched: semaphore: increase sem count when holder task exit
* [#8074](https://github.com/apache/nuttx/pull/8074) sched: semaphore: Remove PRIOINHERIT_FLAGS_ENABLE and use SEM_PRIO_INHERIT instead
* [#8057](https://github.com/apache/nuttx/pull/8057) sched: semaphore: sem_unlink: return ENOENT when the named semaphore does not exist.
* [#8918](https://github.com/apache/nuttx/pull/8918) sched: semaphore: sem_waitirq: Fix semaphore wait interruption when MMU is in use
* [#8452](https://github.com/apache/nuttx/pull/8452) sched: sched_note: add SCHED_NOTE_CUSTOM_BEGIN/END interface
* [#8245](https://github.com/apache/nuttx/pull/8245) sched: sched_releasetcb: Revert 2 changes related to stack deallocation
* [#8914](https://github.com/apache/nuttx/pull/8914) sched: signal: add SIGSYS
* [#8312](https://github.com/apache/nuttx/pull/8312) sched: signal: Fix typo error in Kconfig(SIG_SEGA->SIG_SEGV)
* [#8885](https://github.com/apache/nuttx/pull/8885) sched: signal: Increase the number of real time signals. Two is not enough.
* [#8900](https://github.com/apache/nuttx/pull/8900) sched: signal: Remove configurable assignment of signal numbers
* [#8884](https://github.com/apache/nuttx/pull/8884) sched: signal: remove unused SIGCONDTIMEDOUT
* [#8740](https://github.com/apache/nuttx/pull/8740) sched: signal: sig_dispatch: Add signal action, if task is in system call
* [#8605](https://github.com/apache/nuttx/pull/8605) sched: signal: sig_dispatch: Fix case where signal action is sent twice
* [#8563](https://github.com/apache/nuttx/pull/8563) sched: signal: sig_dispatch: Signal action was not performed if TCB_FLAG_SYSC…
* [#8763](https://github.com/apache/nuttx/pull/8763) sched: signal: sig_dispatch: Revert changes that cause a regression
* [#7910](https://github.com/apache/nuttx/pull/7910) sched: task_setup: set sigprocmask directly to improve performance
* [#8560](https://github.com/apache/nuttx/pull/8560) sched: task: task_cancelpt: Kill the child if it is not in a cancel point
* [#8392](https://github.com/apache/nuttx/pull/8392) sched: waitpid: rename nx_waitpid() to nxsched_waitpid()
* [#8832](https://github.com/apache/nuttx/pull/8832) sched: wqueue: Do as much work as possible in work_thread
* [#8126](https://github.com/apache/nuttx/pull/8126) sched: wqueue: do work_cancel when worker is not null
* [#8321](https://github.com/apache/nuttx/pull/8321) sched: wqueue: semaphore count should be consistent with the number of work entries. | 