Arduino Pre-Release v3.1.0-RC1 based on ESP-IDF v5.3.0+

The Arduino ESP32 version 3.1.0-RC1 is new major release based on the ESP-IDF v5.3.0 (release notes).

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For version migration, please check Migration Guide from v2.X to 3.X

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System PR

• IDF release/v5.1 by @me-no-dev in #10162
• IDF release/v5.1 by @me-no-dev in #10201

Arduino Lib Builder

• fix(install): Fetch before checkout to avoid errors by @lucasssvaz in espressif/esp32-arduino-lib-builder#212
• remove not existing zigbee libs by @Jason2866 in espressif/esp32-arduino-lib-builder#210
• Move libs publishing to this repo by @lucasssvaz in espressif/esp32-arduino-lib-builder#209
• Require ninja to be installed and in path to build the libs by @me-no-dev in espressif/esp32-arduino-lib-builder#206
• Use component manager overwrite to help build by @me-no-dev in espressif/esp32-arduino-lib-builder#205
• add zigbee libs for Platformio by @Jason2866 in espressif/esp32-arduino-lib-builder#204
• Fix ESP-DSP breaking the build by @me-no-dev in espressif/esp32-arduino-lib-builder#203
• feat(mbedtls): Enable support for non-AES ciphers in GCM operation by @lucasssvaz in espressif/esp32-arduino-lib-builder#200

Peripherals

UART

• Fix(UART): ESP32 | ESP32-S2 UART Clock Source by @SuGlider in #10172
• fix(uart): sleep retention by @SuGlider in #10248

Timer

• fix(timer): Typo - milis instead of millis by @leandromattioli in #10193

LEDC

• feat(LEDC): Adds the ability to set the clock source for the LEDC by @konzen in #10171

RGB LED

• Add ability for boards to provide a custom pixel order in neopixelWrite() by @sblantipodi in #10128
• Change "neopixel" references to use RGB LED naming by @SuGlider in #10225

Libraries

Networking

• fix(wifiprov): Fix starting Wifi when already provisioned by @P-R-O-C-H-Y in #10151
• fix(client): Make flush() call clear() and deprecate it by @me-no-dev in #10242

SD Card

• Fix use after free in SD library by @Ariakenom in #10122

USB

• fix(USB): OTG S2 and S3 debug print by @SuGlider in #10123

OTA

• fix(OTA): Wrap espota --auth flag in quotes by @per1234 in #10126
• ArduinoOTA - change occurrence of client.flush() to clear() by @JAndrassy in #10233

Rainmaker

• feat(RMaker): Register common events for better debugging by @P-R-O-C-H-Y in #10133

WebServer

• Improving WebServer Example by @mathertel in #10111
• WebServer - change occurrence of client.flush() to clear() by @JAndrassy in #10234

Boards Additions & Updates

• feat(board): Add CircuitART Zero S3 board by @CircuitART in #10108
• Added variant for Waveshare ESP32-S3-Touch-LCD-1.69 & ESP32-S3-LCD-1.69 board by @Y1hsiaochunnn in #10118
• feat(board):Update M5Stack related board and pin configuration by @Tinyu-Zhao in #10144
• feat(board): Add Alfredo NoU3 by @BotSpace in #10134
• feat(3rd party board): Add Fri3d Badge 2024 (ESP32-S3-WROOM-1) by @francisduvivier in #10143
• Added LILYGO T-Watch-S3 & T-Watch-Ultra variants by @lewisxhe in #10175
• Adding CodeCell ESP32C3 new 3rd part board by @microbotsio in #10177
• feat(board):Add Heltec Vision Master series boards by @RichardHeltec in #10198
• feat(boards): Add ESP32-2432S028R board support by @Xylopyrographer in #10235
• Added variant for Waveshare ESP32-S3-Zero by @Y1hsiaochunnn in #10241

Documentation

• docs: correct Float type size in Preferences API and Tutorial documentation by @Xylopyrographer in #10113
• fix(doc): analogReadMilliVolts by @SuGlider in #10125
• docs(BLE): updated obsolete url in library.properties by @sylque in #10147
• docs(BLE): updated obsolete README.md by @sylque in #10148
• docs(vale): Enable vale and fix errors by @lucasssvaz in #10231

CI & Testing

• ci(branches): Remove wildcard from branch triggers by @lucasssvaz in #10210
• change(build): add -Werror=return-type to default C and C++ flags by @igrr in #10216
• fix(tests): Use proper API and check for required token by @lucasssvaz in #10223
• fix(spelling): Fix misspellings detected by codespell and enable it by @lucasssvaz in #10232

Tooling

• fix(get.py): Add version checking for installed tools by @lucasssvaz in #10160
• fix(release): Fix release script to use new archive method by @lucasssvaz in #10255
• fix(get.py): Remove existing files before extracting by @lucasssvaz in #10247
• fix(requirements): Avoid version conflicts by @lucasssvaz in #10222
• fix(chip): Return correct ESP32 chip model by @me-no-dev in #10243

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Full Changelog: 3.0.4...3.1.0-RC1

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New Contributors

• @CircuitART made their first contribution in #10108
• @Y1hsiaochunnn made their first contribution in #10118
• @Ariakenom made their first contribution in #10122
• @BotSpace made their first contribution in #10134
• @francisduvivier made their first contribution in #10143
• @microbotsio made their first contribution in #10177
• @sylque made their first contribution in #10147
• @sblantipodi made their first contribution in #10128
• @RichardHeltec made their first contribution in #10198
• @konzen made their first contribution in #10171

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Thank you everyone for your contribution! 🎉