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  • What's New In This Release
    1. Maybe a paragraph or two listing the most major new features/changes.
    2. Highlights of project news since last release.
  • Major Changes to Core OS
  • Features Added
    • Architectures and Boards
      • 752 - nucleo-f429zi port
      • 348, 349, 352 - boards/z80/ez80/z20x: z20x board support
      • 320 - New architectural support: ez80f92
      • 411 - Flat address x86_64 port of Nuttx
      • 437 - Support to run NuttX on ESP32 QEMU
    • OS
      • 310, 326 - fcntl: add O_CLOEXEC flag, add O_CLOEXEC/FD_CLOEXEC support
      • 415, 425 - boards/z80/ez80/z20x/: Add W25 bootloader
      • 416 - NFS: Support IPv4 and TCP
      • 420, 424 - stm32, stm32f7, stm32h7 add SPI DMATHRESHOLD
      • USB347, 408 - i.MX RT: Add USB Device support
      • 444 - SAMA5D27 peripheral support - USB Host working
      • 407 - i.MX RT: Add ability to run from OCRAM
    • Network
      • 66 - CDC-ECM Ethernet over USB 2.0 HS
      • 248 - Network Loopback Driver: Add a configuration option to control packet size312 - net/ioctl: add FIONBIO support
      • 313 - net/socket: add MSG_DONTWAIT support
      • 654, 664 - DNS Dual Host support (what is this? No PR description)
    • Simulator
      • 247 - boards/sim: Add a TCP loopback test.
      • 274 - Improve sim timer
      • 629 - 64-bit modules on macOS simulator
    • Drivers
      • 244 - i.MX RT: FLEXIO clock config logic.
      • 271, 350 - SocketCAN
      • 299 - Adds driver for the ADS7828 I2C analog to digital converter
      • 332 - SAMV71: add read UID implementation and move flash functions to RAM
      • 309 - driver/ioexpander: New driver for PCA9538 I2C I/O expander
      • 304 - lm3s6965-ek: Add PROTECTED support
      • 402 - STM32H7: Added IWDG and WWDG, power management (sleep/stop/standby), WKUP pin configuration
      • 403 - MCP9844 shutdown mode support
      • 404 - New driver type for battery monitor ICs.
      • 404 - Driver for the BQ769x0 battery monitor IC.
      • 409 - boards/z80/ez80/z20x: Add XTP2046 SPI support.
      • 414 - RX65N RTC Driver added
      • 423 - NXP Freedom K28F Board SD-Card support
      • 459 - stm32h7: support SDRAM via FMC peripheral
    • Build System
      • 315 - Kconfig: add PATH_MAX config
      • 358, 363, 368, 369, 385, 393, 400, 405, 406 - tools/zds: Add build tools to simplify ZDS-II tool usage, tools/zds/zdsgen.c: WIP Compiler/Assembler Wrapper
      • 421 - mkexport: Deal with ARCHSCRIPT containing multiple files
      • 447 - ESP32 module support
      • 759 - macOS builds
      • 756 - script to PGP sign tarballs
      • 743 (and others) - various NX style improvements
    • Debugger Support
      • 649 - OpenOCD for esp32 improvements


    1. Bugfixes
  2. Compatibility Concerns
    1. Point out any major changes that require changes by downstream users.
  3. Major Changes to Build System
    1. New or significantly changed
  4. Architectural Support
    1. List new architectures
    2. List architectures with significant improvements
    3. List removed architectures
  5. Driver Support
    1. List major new drivers
    2. List drivers with significant improvements
    3. List removed drivers
  6. Security Issues Fixed in this Release
  7. Known Problems in this Release
    1. (If any)
  8. More Information
    1. Where to find the release
    2. How to clone git repository and list full changelog
    3. How to contact the community
  9. Call to action: Invitation to get involved in Apache NuttX
    community and development!
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