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Table of Contents

Work In Progress

Warning
titleWork In Progress
NuttX X.Y has not been released yet. These Release Notes are a work-in-progress in preparation for the next release of NuttX.  There is a board tracking the PRs that need to be looked at to add to this doc for the OS TODO ADD LINK and for the Apps TODO ADD LINK

What's New In This Release

...

Markdown
* [#9322](https://github.com/apache/nuttx/pull/9322)boards/nrf52: add initial support for Thingy:52 board  
* [#9323](https://github.com/apache/nuttx/pull/9323)boards/nrf53: add initial support for Thingy:53 board

Improvements

...

File System

...

Markdown
* [#9063#8964](https://github.com/apache/nuttx/pull/90638964) fsboards: Add g_ prefix to file_operations and mountpt_operations define boardioc_softreset_subreason_e in CONFIG_BOARDCTL_RESET 
* [#8939#9512](https://github.com/apache/nuttx/pull/89399512) fsboards: FlushEnable themd5 fileto systemtest cache in BOARDIOC_POWEROFF too virtio 
* [#9521#9167](https://github.com/apache/nuttx/pull/95219167) fsboards: Fix CONFIG_[START_DATE,START_MONTH] cannot start with 0 
* [#8962](https://github.com/apache/nuttx/pull/8962) boards: refresh boards that use usbmsc 
* [#8942](https://github.com/apache/nuttx/pull/8942) boards: Replace open/pread with file_open/file_pread 
* [#8941](https://github.com/apache/nuttx/pull/8941) boards/boardctl: Add BOARDIOC_SOFTRESETCAUSE_ENTER_BOOTLOADER reset cause 
* [#9217](https://github.com/apache/nuttx/pull/9217) boards/boardctl: add BOARDIOC_SOFTRESETCAUSE_RESTORE_FACTORY_INQUIRY 
* [#9535](https://github.com/apache/nuttx/pull/9535) boards/arm/cxd56xx/spresense: Fix boards implements for supporting PM System 
* [#9056](https://github.com/apache/nuttx/pull/9056) boards/arm/cxd56xx/drivers/sensors/Kconfig: Fix bmp280 texts in Kconfig 
* [#9358](https://github.com/apache/nuttx/pull/9358) boards/arm/nrf5x: introduce common folder for nrf52 and nrf53 
* [#9403](https://github.com/apache/nuttx/pull/9403) boards/arm/nrf52840-dongle: add usb support and usbnsh example 
* [#9451](https://github.com/apache/nuttx/pull/9451) boards/arm/nrf52-feather: fix typo in I2C1 initialization 
* [#9321](https://github.com/apache/nuttx/pull/9321) boards/arm/nrf53: cosmetics 
* [#8840](https://github.com/apache/nuttx/pull/8840) boards/arm/sam34: make userleds work on Arduino Due 
* [#9571](https://github.com/apache/nuttx/pull/9571) boards/arm/samv7: add lower level IOCTL handler to sam_gpio_enc driver 
* [#9415](https://github.com/apache/nuttx/pull/9415) boards/arm/samv7: add type member to mtd_partition_s structure 
* [#8952](https://github.com/apache/nuttx/pull/8952) boards/arm/stm32: add composite device configurations 
* [#9559](https://github.com/apache/nuttx/pull/9559) boards/arm/stm32/stm32 tickless: stop assertion when calling up_timer_gettime 
* [#9089](https://github.com/apache/nuttx/pull/9089) boards/arm/stm32/tm4c1294-launchpad: Add reboot support. 
* [#9383](https://github.com/apache/nuttx/pull/9383) boards/arm/stm32/Update stm32l562e-dk:nsh 
* [#9373](https://github.com/apache/nuttx/pull/9373) boards/arm/stm32f0l0g0: rework boards to not use legacy pinmap 
* [#9164](https://github.com/apache/nuttx/pull/9164) boards/arm/stm32f4/nucleo-f429zi: update CONFIG define to keep up with the CONFIG in arch/stm32 
* [#9593](https://github.com/apache/nuttx/pull/9593) boards/arm/stm32f4/stm32f429i-disco: Register the BUTTON driver 
* [#8906](https://github.com/apache/nuttx/pull/8906) boards/arm/stm32f4/stm32f411: MiniF4 peripherals support improvements 
* [#9409](https://github.com/apache/nuttx/pull/9409) boards/arm/stm32f7: DIR/Complementary PWM possible on PE08 and PE10 
* [#9247](https://github.com/apache/nuttx/pull/9247) boards/arm/stm32f7: rework boards to not use legacy pinmap 
* [#9230](https://github.com/apache/nuttx/pull/9230) boards/arm/stm32f7/nucleo-144: Modifications for the EMB control board 
* [#9562](https://github.com/apache/nuttx/pull/9562) boards/arm/stm32f7/stm32f777zit6-meadow: Fix external RAM pinout and add board profile 
* [#9250](https://github.com/apache/nuttx/pull/9250) boards/arm/stm32h7: rework boards to not use legacy pinmap 
* [#9224](https://github.com/apache/nuttx/pull/9224) boards/arm/stm32h7/nucleo-h743zi: fix usb host example 
* [#9233](https://github.com/apache/nuttx/pull/9233) boards/arm/tiva: bmp280 driver binding to tm4c1294 
* [#9206](https://github.com/apache/nuttx/pull/9206) boards/arm/tiva: mpu6050 driver binding to TM4C1294 
* [#9054](https://github.com/apache/nuttx/pull/9054) boards/arm/tiva/lm3s6432-s2e: reduce size of NSH configuration binary 
* [#8929](https://github.com/apache/nuttx/pull/8929) boards/arm/tiva/tm4c1294-launchpad: Use bmi160 driver for boostxl-sensors. 
* [#9150](https://github.com/apache/nuttx/pull/9150) boards/sim: Add defconfigs for testing the RTP Tools on Simulator and ESP32-LyraT board and relevant documentation about it 
* [#8772](https://github.com/apache/nuttx/pull/8772) boards/sim: Add sim:toywasm config 
* [#9197](https://github.com/apache/nuttx/pull/9197) boards/sim: Enable more sanitizer check when enable 
* [#8972](https://github.com/apache/nuttx/pull/8972) boards/sim/ostest: Enabled KASAN, UBSAN & assertions. 
* [#9015](https://github.com/apache/nuttx/pull/9015) boards/xtensa/esp32: Add ESP32-PICO-KIT support 
* [#9141](https://github.com/apache/nuttx/pull/9141) boards/xtensa/esp32/esp32-devkitc: substitute ramtest to mm on defconfigs 
* [#9567](https://github.com/apache/nuttx/pull/9567) boards/xtensa/esp32/esp32-devkitc/wamr_wasi_debug: Bump WAMR version 
* [#9096](https://github.com/apache/nuttx/pull/9096) boards/xtensa/esp32/esp32s2-kaluga-1: Add support for LCD displays 
* [#9565](https://github.com/apache/nuttx/pull/9565) boards/xtensa/esp32/esp32s3: Add usbnsh for all ESP32S3 boards 
* [#9551](https://github.com/apache/nuttx/pull/9551) boards/xtensa/esp32/esp32s3-devkit: Revert NSH defconfig deletion 
* [#9524](https://github.com/apache/nuttx/pull/9524) boards/xtensa/k210: Use 8 byte align in linker script #9135 boards: remove unnecessary FAR 
* [#8781](https://github.com/apache/nuttx/pull/8781) boards/risc-v: Add MPU60x0 IMU sensors support for ESP32C3 
* [#8762](https://github.com/apache/nuttx/pull/8762) boards/risc-rv/qemu-vr: Support for Kernel build with vexriscv-smp. 
* [#9514](https://github.com/apache/nuttx/pull/9514) boards/risc-rv/rv-virt: Add netnsh64_smp to test virtio 

File System

Improvements 

Markdown
* [#9063](https://github.com/apache/nuttx/pull/9063) fs: Add g_ prefix to file_operations and mountpt_operations  
* [#8939](https://github.com/apache/nuttx/pull/8939) fs: Flush the file system cache in BOARDIOC_POWEROFF too 
* [#9521](https://github.com/apache/nuttx/pull/9521) fs: move memset move memset to upper lever for statfs and add f_fsid field  
* [#9558](https://github.com/apache/nuttx/pull/9558) fs: some minor changed about the fs  
* [#9060](https://github.com/apache/nuttx/pull/9060) fs/cromfs: Fix faulty DEBUGASSERT() check  
* [#9000](https://github.com/apache/nuttx/pull/9000) fs/hostfs: align operation flags define with fcntl.h  
* [#8868](https://github.com/apache/nuttx/pull/8868) fs/hostfs: switch working directory  
* [#9550](https://github.com/apache/nuttx/pull/9550) fs/fdcheck: Let FDCHECK depend on SCHED_HAVE_PARENT  
* [#9009](https://github.com/apache/nuttx/pull/9009) fs/inode: Fixes in asprintf usage.  
* [#9093](https://github.com/apache/nuttx/pull/9093) fs/inode: when searching for nextname skip "/" and "./"  
* [#9037](https://github.com/apache/nuttx/pull/9037) fs/littlefs: littlefs shouldn't be used without C99 BOOL 
* [#9120](https://github.com/apache/nuttx/pull/9120) fs/littlefs: Add patch for littlefs to use kmm_malloc/free on kernel with MMU. Upgrade to latest littlefs  
* [#9140](https://github.com/apache/nuttx/pull/9140) fs/mtd: add support for MTDIOC_ERASESECTORS ioctl  
* [#9146](https://github.com/apache/nuttx/pull/9146) fs/mtd: Implement MTDIOC_ERASESTATE and MTDIOC_ERASESECTORS  
* [#9144](https://github.com/apache/nuttx/pull/9144) fs/mtd: minor fix for mtd/nand driver  
* [#9145](https://github.com/apache/nuttx/pull/9145) fs/mtd/nand: Add nand_raw_initialize to skip the probing  
* [#9347](https://github.com/apache/nuttx/pull/9347) fs/partition: register partition device if caller doesn't provide handler  
* [#9394](https://github.com/apache/nuttx/pull/9394) fs/procfs: add cpuinfo  
* [#8991](https://github.com/apache/nuttx/pull/8991) fs/procfs: add total time running time of task  
* [#9073](https://github.com/apache/nuttx/pull/9073) fs/procfs: fix readdir loss last character  
* [#9540](https://github.com/apache/nuttx/pull/9540) fs/vfs: Proper use of sigisemptyset  
* [#9205](https://github.com/apache/nuttx/pull/9205) fs/vfs: Zero file struct field with memset
* [#9385](https://github.com/apache/nuttx/pull/9385) fs/vfs/fs_poll: Fix wrong return value in CONFIG_BUILD_KERNEL  
* [#9576](https://github.com/apache/nuttx/pull/9576) fs/vfs/sendfile: Fixed behavior of sendfile when count is set to zero.

...

Markdown
* [#9423](https://github.com/apache/nuttx/pull/9423) net: Fix task block when devif_send fails.  
* [#9265](https://github.com/apache/nuttx/pull/9265) net: move ttl field into socket_conn_s struct  
* [#9237](https://github.com/apache/nuttx/pull/9237) net: remove conn-related casts  
* [#9254](https://github.com/apache/nuttx/pull/9254) net: Support to PMTUD  
* [#9180](https://github.com/apache/nuttx/pull/9180) net/can: control msg support multi-attribute return   
* [#9111](https://github.com/apache/nuttx/pull/9111) net/can: fix can mssage corruption if enable NET_TIMESTAMP  
* [#9160](https://github.com/apache/nuttx/pull/9160) net/can: Remove the unnecessary "ret = OK;" in can_getsockopt 
* [#9169](https://github.com/apache/nuttx/pull/9169) net/ethernet: add ETHERTYPE define  
* [#9483](https://github.com/apache/nuttx/pull/9483) net/icmp: Save poll device in icmp_poll_s  
* [#9174](https://github.com/apache/nuttx/pull/9174) net/icmp6: add icmp6-related definition  
* [#9222](https://github.com/apache/nuttx/pull/9222) net/icmp6/in.h: add SOL_IPV6 protocol-level socket options IPV6_RECVHOPLIMIT  
* [#9195](https://github.com/apache/nuttx/pull/9195) net/icmpv6: add SOCK_RAW type support  
* [#9177](https://github.com/apache/nuttx/pull/9177) net/if: add net device type  
* [#9178](https://github.com/apache/nuttx/pull/9178) net/ip: add iphdr definition  
* [#9171](https://github.com/apache/nuttx/pull/9171) net/if_arp: add arphdr definition  
* [#9519](https://github.com/apache/nuttx/pull/9519) net/inet_addr: return INADDR_NONE(-1) when input string is invalid  
* [#9179](https://github.com/apache/nuttx/pull/9179) net/ip6: add ip6-related definition  
* [#9266](https://github.com/apache/nuttx/pull/9266) net/ipv6: support SOL_IPV6 options IPV6_UNICAST_HOPS and IPV6_MULTICAST_HOPS  
* [#9269](https://github.com/apache/nuttx/pull/9269) net/ipv6_setsockopt: Merge similarity logic  
* [#9196](https://github.com/apache/nuttx/pull/9196) net/ipforward: copy iob when broadcast forward  
* [#9043](https://github.com/apache/nuttx/pull/9043) net/ipforward: limit the forwarding range of broadcast packets  
* [#9244](https://github.com/apache/nuttx/pull/9244) net/local: fix blocking local sockets  
* [#9295](https://github.com/apache/nuttx/pull/9295) net/net: Add the check that socket domain is equal to bound address type, when do bind.  
* [#9162](https://github.com/apache/nuttx/pull/9162) net/net: Simplify the tcp/udp existence check  
* [#8610](https://github.com/apache/nuttx/pull/8610) net/netdev: Add upper half of netdev and simplify sim driver  
* [#9517](https://github.com/apache/nuttx/pull/9517) net/netdev: remove ASSERT when ifindex is invalid  
* [#9543](https://github.com/apache/nuttx/pull/9543) net/netdev/upper: Optimize on quota related operations  
* [#9293](https://github.com/apache/nuttx/pull/9293) net/netdev_upper: Protect quota by spin lock to allow netpkt_xxx be called in interrupt context  
* [#9522](https://github.com/apache/nuttx/pull/9522) net/netfilter: add NF_IP_xxx definition  
* [#9188](https://github.com/apache/nuttx/pull/9188) net/netinet/include: header file definition changed to nuttx format  
* [#8864](https://github.com/apache/nuttx/pull/8864) net/netlink: add RTM_NEWADDR, RTM_DELADDR and RTM_GETADDR  
* [#9175](https://github.com/apache/nuttx/pull/9175) net/netlink: convert lltype to device type  
* [#9116](https://github.com/apache/nuttx/pull/9116) net/procfs: Support to show MTU in netdev statistics  
* [#9170](https://github.com/apache/nuttx/pull/9170) net/route: add struct in6_rtmsg definition  
* [#9290](https://github.com/apache/nuttx/pull/9290) net/rpmsg: initialize semaphore count before wait  
* [#9042](https://github.com/apache/nuttx/pull/9042) net/rpmsg: Set family for rpaddr in ns_bind  
* [#9374](https://github.com/apache/nuttx/pull/9374) net/socket: Fix send() / recv() in BUILD_KERNEL  
* [#9588](https://github.com/apache/nuttx/pull/9588) net/socket/recvfrom: Fix buffer copy direction when using BUILD_KERNEL.  
* [#9074](https://github.com/apache/nuttx/pull/9074) net/tcp_input: drop SYN when no free node in the backlog  
* [#9187](https://github.com/apache/nuttx/pull/9187) net/tcp_monitor: start_monitor return OK when connect closed by peer  
* [#9414](https://github.com/apache/nuttx/pull/9414) net/tcp: Add flag for tcp_close to avoid double free  
* [#9262](https://github.com/apache/nuttx/pull/9262) net/tcp: Add NewReno congestion control.  
* [#8782](https://github.com/apache/nuttx/pull/8782) net/tcp: add TCP_MAXSEG support 
* [#9041](https://github.com/apache/nuttx/pull/9041) net/tcp: Fix clear condition in ofoseg input  
* [#9172](https://github.com/apache/nuttx/pull/9172) net/udp: add udphdr definition #9173 if_ether: add ether_arp definition  
* [#9214](https://github.com/apache/nuttx/pull/9214) net/udp: change PKTINFO flag to socket_conn_s struct  
* [#9194](https://github.com/apache/nuttx/pull/9194) net/udp: Remove wrong check in udp_readahead  
* [#8947](https://github.com/apache/nuttx/pull/8947) net/usrsock_server: Improvement on sendto errors  
* [#9139](https://github.com/apache/nuttx/pull/9139) wireless: add IW_AUTH_WPA_VERSION_WPA3 flag to support WPA3  
* [#9113](https://github.com/apache/nuttx/pull/9113) wireless/bluetooth: Initialize private bt_driver_s member.  
* [#9068](https://github.com/apache/nuttx/pull/9068) wireless/bluetooth: Fix the Unexpected ACL flags error  
* [#9087](https://github.com/apache/nuttx/pull/9087) wireless/bluetooth: Fix build error when BT_GATT_CCC is used.  
* [#9471](https://github.com/apache/nuttx/pull/9471) wireless/bluetooth: Add a generic access service.  
* [#9166](https://github.com/apache/nuttx/pull/9166) wireless/bluetooth: Support removable bluetooth modules.

...

Compatibility Concerns
 Markdown
* [#8827](https://github.com/apache/nuttx/pull/8827) arch/nrf52: nvmc and flash should depends on ALLOW_BSD_COMPONENTS=y  

Users using nvmc and flash must allow BSD components (CONFIG_ALLOW_BSD_COMPONENTS=y).

* [#8992](https://github.com/apache/nuttx/pull/8992) stm32: Remove GPIO_{SPEED|MODE}_xxx and provide a legacy path for lazy migration  

All boards board.h should be migrated using tools/stm32_pinmap_tool.py
`tools/stm32_pinmap_tool.py --pinmap arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap_legacy.h --addall --suffix _0 --report /include/board.h
it will output 2 sections that should be used to update the board.h.

* [#9527](https://github.com/apache/nuttx/pull/9527) sched/tls: remove PTHREAD_CLEANUP from Kconfig  

use PTHREAD_CLEANUP_STACKSIZE to enable or disable interfaces pthread_cleanup_push() and pthread_cleanup_pop().
Same as TLS_TASK_NELEM - It is no need to use two variables. Make the reserved entries more explicit

* [#8985](https://github.com/apache/nuttx/pull/8985) drivers/pipe: make pipe and named pipe (mkfifo) POSIX-compliant (blocking open)  

It would be a possible breaking change if any application was written specifically to expect an open for write-only 
(and O_NONBLOCK cleared, of course) to be non-blocking even if there are no readers.
Being able to port POSIX-compliant applications that expect open to block when opening for write-only with no readers
would enhance NuttX's objective of "to achieve a high degree of standards compliance. The primary governing standards 
are POSIX and ANSI standards". That is the case for RTP Tools, for instance.
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