The Arduino ESP32 release candidate version 3.0.0-RC1 is based on the ESP-IDF v5.1 (release notes) and is major release supporting new version of ESP-IDF 5.1.

This release introduce breaking changes and support for new SoCs, ESP32-H2 and ESP32-C6. ESP32-C2 support added, for usage you need to build the libraries using ESP32 Arduino Lib builder.

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

Major changes

• IPv6 Support for ESP32 Arduino by @me-no-dev in #9016
• 3.0.0 Network Refactoring by @me-no-dev in #8760
• Implement official Arduino IDE debugger API by @pillo79 in #9116
• Feature: New Class MacAddress similar to IPAddress by @P-R-O-C-H-Y in #9304
• Add ESP-NOW Arduino library by @P-R-O-C-H-Y and @me-no-dev in #9395

Peripherals updates

UART

• UART: fixes begin() after a previous begin() :: deleting previous RX/TX buffers and its data by @SuGlider in #9095
• HardwareSerial Available For Write by @SuGlider in #9319
• HardwareSerial:begin() changes RTS and CTS pins preventing detaching those pins by @SuGlider in #9353
• Fixes HW Serial attaching pins, PHY initialization, crash after end() by @SuGlider in #9365

I2C

• Fix i2c compilation when #define CONFIG_DISABLE_HAL_LOCKS=1 by @P-R-O-C-H-Y in #9164
• Fix ambiguous for TwoWire::requestFrom() methods and align API with Arduino.cc by @safocl in #8817

RMT

• Adds RMT End of Transmission Level API by @SuGlider in #9238
• Update new RMT function rmtSetEOT(pin, EOT_Level) in the pin remap macros by @SuGlider in #9266

LEDC

• Add missing include for SemaphoreHandle_t to LEDC header file by @sgryphon in #9134
• LEDC - Allow custom channel selection by @P-R-O-C-H-Y in #9031
• feature(ledc): Add output invert option for LEDC pin + minor fixes by @P-R-O-C-H-Y in #9257

SPI

• SPI - Allow detaching of some SPI pins without stopping SPI by @P-R-O-C-H-Y in #9117
• SPI (fix): Adds SPI 3 to the ESP32-S2 and adds comments about it by @SuGlider in #9216
• Fix spiTransaction not updating clock line immediately (#9221) by @and3rson in #9333
• Fix spiTransaction not updating clock line immediately (C2,C6,H2) by @P-R-O-C-H-Y in #9335

GPIO

• Add methods to enable/disable GPIOs interrupt by @P-R-O-C-H-Y in #9025
• Improve Log Messages in GPIO HAL by @SuGlider in #9011
• Add: make digitalRead() for RGB_BUILTIN work by @holgerlembke in #9419

HWCDC

• Fixes the hardware cdc jtag plugged/unplugged status and related timeout/delay by @SuGlider in #9275
• fixes default 100ms delay with HWCDC write() is CDC is not connected by @SuGlider in #9307
• fix: perimgr + begin by @SuGlider in #9331
• fix: HW CDC write() by @SuGlider in #9401

Other peripherals changes

• Fixes sigmaDeltaAttach() when another peripheral is already attached using the same pin by @SuGlider in #9268
• Fixed the String::lastIndexOf bug by @a1ext in #9003
• Fixes EspClass::deepSleep(64 bits) by @SuGlider in #9077
• change(esp32): Added clearing of queue with unTone() by @tanakamasayuki in #9055
• change(MD5Builder): Const-correctness. by @StefanOberhumer in #9104
• Rework cbuf to use FreeRTOS Ringbuffer by @me-no-dev in #7860
• Update binary.h by @Jason2866 in #9323
• core Server class back to Arduino Core API version by @JAndrassy in #9447

Libraries updates

WiFi (Network) related

• Fix race condition in WiFiGenericClass::hostByName by @MattiasTF in #8672
• ESPLwIPClient::setTimeout conflict fix with Stream::setTimeout by @P-R-O-C-H-Y in #6676
• Remove setTimeout from WifiClientSecure by @P-R-O-C-H-Y in #8998
• WiFiClients.setConnectionTimeout added by @JAndrassy in #8863
• Add v6 support to IPAddress to match ArduinoCore-API by @sgryphon in #7174
• Fix IPv6-only DNS by checking IPv6 first if have a public scope address by @sgryphon in #9443
• Revert "WiFiSTA - allow using DHCP again after disconnecting static IP" by @JAndrassy in #8873
• undeprecate WiFiServer::available() by @SuGlider in #9027
• WiFi.disconnect() "aligned with Aduino.cc". waiting for status change. by @JAndrassy in #9062
• WiFiClient - assignment shouldn't stop connection by @JAndrassy in #9029
• Revert "undeprecate available() (#9027)" by @JAndrassy in #9165
• WiFiServer - don't inherit from Print and Server by @JAndrassy in #8930
• Improves WiFiMulti by @SuGlider in #9139
• Add support for hidden networks in WiFiMulti by @lucasssvaz in #9202
• feat(wifi): Add support for NAPT to WIFI AP by @me-no-dev in #9478
• fix(ethernet): move event listener earlier to avoid missing event ETH_CONNECTED by @s-hadinger in #9481
• fix(tls): Enable IPv6 support in ssl_client connect by @sgryphon in #9470
• feat(dns): Check type of IP addresses and clear DNS cache if they changed by @sgryphon in #9476
• WiFi.config handle Arduino parameters ordering and auto dns,gw,mask by @JAndrassy in #9425
• Ensure that Static IP configuration for network interfaces is kept until STOP by @me-no-dev in #9445
• WiFi BSSID getter fix by @JAndrassy in #9434
• Use WiFi.mode to enable/disable the Network Interfaces by @me-no-dev in #9436
• WiFiClient - rename flush() to clear() by @JAndrassy in #9453
• ETH: Support physical address auto detection by @P-R-O-C-H-Y in #9313
• Network refactoring - fix some IPv6 DNS issues by @sgryphon in #9439
• Add option to specify AP auth mode and cipher by @me-no-dev in #9454
• Add MacAddress string constructor by @lucasssvaz in #9400
• Add method to set the WiFi radio channel by @lucasssvaz in #9405
• Support for STARTLS/STARTSSL in-band transport upgrades/renegotation by @dirkx in #9100
• [Enhancement] Support no-IRQ for SPI Ethernet W5500 by @TD-er in #9251
• Fix NetworkManager compilation warning by @lucasssvaz in #9452
• feat(net): Add support for selecting the default network interface by @me-no-dev in #9457
• feat(net): Add support for esp_netif flags by @me-no-dev in #9460

Bluetooth & BLE related

• fix(esp32): Added a timeout option to the BLEClient's connect function by @LiveSparks in #9005
• Fixes Pointer and Call using Serial BT callback by @SuGlider in #9245

USB

• Enable USB Serial only if selected by @me-no-dev in #9294
• Fixes ESP32-S2 CDC Debug Logging by @SuGlider in #7284
• fix: USB HID Keyboard raw report by @SuGlider in #9473
• Add ...

The Arduino ESP32 version 2.0.15 is based on the ESP-IDF v4.4.7 (release notes) and is bug fix release for Arduino ESP32 Core version 2.X.X.

Known Issues

• UART pins definition changed (breaking change) - (related issue with workaround)

Major changes & fixes

• IDF 38eeba213a by @me-no-dev in #9339 (update to ESP-IDF v4.4.7)
• backports HWCDC to v2.0.15 by @SuGlider in #9462
• Fixes set pins return value in 2.0.13 by @SuGlider in #8644
• feat: adds baudrate detection to S3 and C3 using LL API for all SoC by @SuGlider in #9261
• feat(uart): backports UART pin attachment from 3.0.0 to 2.0.15 by @SuGlider in #9176

Peripherals

• fix(adc): Always use default read resolution in __analogReadMilliVolts by @bkari02 in #9006
• Fixes issue related to writing RGB LED fast in a row by @SuGlider in #9374
• fix: UART0 boot pin setup by @SuGlider in #9373
• fix: HWCDC removed clearing USB Serial/JTAG interrupts during begin (#9316) by @kiran-desilva in #9344

Libraries

• SD library: Fix format by @Jason2866 in #9124
• Backport for v2.x : fix(sd): AquireSPI lock in sdcard_uninit by @P-R-O-C-H-Y in #9469
• Adjust Update Library license by @SuGlider in #9448
• Backport fix linker failure by @Jason2866 in #9121
• Add and init new LittleFS options by @Jason2866 in #9122
• WebServer: use MD5Builder instead of mbedtls by @Jason2866 in #9123
• Backport: simplifying webserver file uploads via form POST by @Jason2866 in #9211
• Backport: ArduinoOTA upload intermittent failure fixed by @Jason2866 in #9215
• Backport: Fix ESP32-Solo WDT on HTTP OTA update by @Jason2866 in #9223
• Handle large octet-stream by @nathannau in #9430

Boards additions and updates

• Rename variants/heltec_wifi_kit_32_V3 to match entry in boards.txt. by @audiophyl in #8886
• Add support for the MotorGo Mini board by @SwapnilPande in #9269
• MotorGo Mini 1 - Update LED_STATUS to match latest board revision by @SwapnilPande in #9298
• add senseBox MCU-S2 by @mariopesch in #9263
• ESP32-S3 PowerFeather Support for v2.x by @powerfeatherdev in #9325
• Define Wire1 pins for ESP32-S3 PowerFeather by @powerfeatherdev in #9398
• backport: variants from 3.0.0 + fixes by @SuGlider in #9381

Tooling

• Support relative paths in UNIX search PATH by @me-no-dev in #8622
• fix(platform): use numbers in all recipe hooks (on 2.x) by @pillo79 in #9219
• Implement official Arduino IDE debugger API on 2.x by @pillo79 in #9118

Documentations

• Added isKey documentation for the Preferences library by @Viproz in #9142

Full Changelog: 2.0.14...2.0.15

New Contributors

• @audiophyl made their first contribution in #8886
• @SwapnilPande made their first contribution in #9269
• @kiran-desilva made their first contribution in #9344

Thanks for your contribution! 🎉

The Arduino ESP32 pre-release version 3.0.0-aplha 3 is based on the ESP-IDF v5.1 (release notes) and is major release supporting new version of ESP-IDF 5.1. This release introduce breaking changes and support for new SoCs, ESP32-H2 and ESP32-C6.

ESP32-C2 support was added, for usage you need to build the libraries using ESP32 Arduino Lib builder.

Major changes

• Add ESP32-C2 support by @Jason2866 in #8881
• [I2S][SR] Add new I2S library and Sound Recognition support by @me-no-dev in #8714
• Zigbee protocol support by @P-R-O-C-H-Y in #8844
• Fixes Rainmaker to be a Managed Component by @SuGlider in #8842
• IDF release/v5.1 by @me-no-dev in #8865
• IDF release/v5.1 by @me-no-dev in #8943

Peripherals updates

UART

• UART: Change default Serial1/2 pins and move definition to header by @lucasssvaz in #8800
• Fixes uart attach/detach by @SuGlider in #8820
• Serial as a #define by @SuGlider in #8798
• HardwareSerial::end(bool) review + Baud Rate detection review and example by @SuGlider in #8762

I2S

• Makes MP3 header files public for I2S code by @SuGlider in #8868
• Add support for I2S Slot Mask by @me-no-dev in #8936
• I2S fix missing perimanSetBusDeinit() by @P-R-O-C-H-Y in #8782

I2C

• Fully guard I2C Slave in preparation for C2 support by @me-no-dev in #8882
• Add lock in Wire.cpp to protect concurrent i2c transactions performed by different tasks by @mircopz in #8127

ADC

• Fix ADC detach bus calibration handle error when not existing. by @P-R-O-C-H-Y in #8932

RMT

• Update RMT initialization code by @diplfranzhoepfinger in #8927
• RMT: Fix RMT TX interrupt level by @lucasssvaz in #8813

Other peripherals changes

• Neopixel fix by @SuGlider in #8845
• fix S3 cannot reset to bootrom with USB OTG due to new gpio deinit() by @hathach in #8880

Libraries updates

WiFi related

• WiFiSTA - allow using DHCP again after disconnecting static IP by @JAndrassy in #8848
• WiFiSTA - new status constant WL_STOPPED by @JAndrassy in #8849
• WiFi.BSSID and scan result BSSID with parameter as in WiFi libraries by Arduino by @JAndrassy in #8853
• WiFiSTA - method setDNS as in WiFi libraries by Arduino by @JAndrassy in #8854
• WiFiServer - deprecate available(), use accept() everywhere by @JAndrassy in #8860
• Added WiFi Bandwidth Setting Methods for AP and STA modes. by @gonzabrusco in #7619
• Add missing function getSocketOption by @rtpmsys in #7807

Bluetooth & BLE related

• Bluetooth-classic: release BLE memory when BT classic only is requested by @ferbar in #8051
• Added methods to remove service UUID from BLEAdvertising by @dpnebert in #8747
• Kernel panic when delete BLEClient object with descriptor characteristic by @chesterkwan in #8010
• Fixes BLEScanResults to be used by reference by @SuGlider in #8759
• BluetoothSerial: Fix SPP service mode by @lucasssvaz in #8806
• Fix linker failure when using BluetoothSerial on latest release with Arduino as Component. by @blackhack in #8784
• Increase BT SPP task priority by @SuGlider in #8859

USB

• Added KEY_SPACE to USBHIDKeyboard.h by @lbernstone in #8920
• Absolute mouse support (was #6331) by @tobozo in #8831
• Make USBHIDKeyboard work at boot by @RefactorFactory in #6964
• Add USB MIDI support to libraries/USB by @EleotleCram in #8166

Other libraries changes

• Fix linker failure when using SPIFFS or LittleFS with Arduino as component by @blackhack in #8768
• provide LittleFS feature grow_on_mount by @Jason2866 in #8769
• Supporting ETag http headers on static files by @mathertel in #7687
• feat: adding possibility to manually set MD5 checksum and authorization for HTTP update by @vlastahajek in #7629
• UpdateClass::setMD5 store expected md5 in lowercase by @P-R-O-C-H-Y in #8959

Other general changes

• Add platform specific flash speed to magicFlashChipSpeed by @TD-er in #8864
• Add 120Mhz cpu frequency option to setCpuFrequencyMhz() by @P-R-O-C-H-Y in #8956
• Remove unsupported DOUT and QOUT options by @lucasssvaz in #8805
• Fix compilation when NO_GLOBAL_SERIAL is defined. by @everslick in #8933
• Support relative paths in UNIX search PATH by @me-no-dev in #8938
• Fix Wire.setClock() causing assert by @me-no-dev in #8777
• Fix "fatal error: esp_partition.h: No such file or directory" by @Msq001 in #8787

Peripheral Manager improvements

• Extend bus types and structure for Peripheral Manager by @P-R-O-C-H-Y in #8888
• PeriMan: Improve log messages by @lucasssvaz in #8812
• fix: pin_remap: make periman APIs private and non-remapped by @pillo79 in #8940

Boards additions and updates

• Add new uPesy boards as variant by @uPesy in #8778
• Add the DFRobot Beetle ESP32C6 and the DFRobot FireBeetle2 ESP32C6 as two development boards by @wxzed in #8793
• Added entry for octal flash S3 by @lbernstone in #8660
• Add new UM TinyC6 board and re-ordered UM boards in boards.txt file. by @UnexpectedMaker in #8814
• Set M5Stack Core2 Flash Mode to QIO by @me-no-dev in #8937
• Update Adafruit boards by @hathach in #8897
• correct adafruit metro esp32s3 pins for rev B by @hathach in #8903
• Add support for ESP32-S3 PowerFeather by @powerfeatherdev in #8889
• Adds support for missing Olimex boards by @Stanimir-Petev in #8896
• add tinyuf2 partitions csv by @hathach in #8894
• Added arduino uno backward compatibility pins by @alexceltare2 in #8833
• Add senseBox MCU-S2 with ESP32S2 by @mariopesch in #8891
• Fix Heltec boards build.board to be uppercase by @P-R-O-C-H-Y in #8958
• Add support for the Arduino Nano ESP32 on 3.x branch by @pillo79 in #8909

Tools improvements

• [REDO] Update espota.py by @me-no-dev in #8797

Documentation & Examples

• [Docs] Add Migration guide + some API updates by @P-R-O-C-H-Y in #8716
• Removed YML file and changed the YAML file structure by @pedrominatel in #8785
• [Docs] Fixed the RTD theme and core version by @pedrominatel in #8794
• [Docs] Add ESP32C6 + ESP32H2 by @P-R-O-C-H-Y in #8799
• Fix of Readme by @VojtechBartoska in #8852
• Update/upgrade OTAWebUpdater.ino example by @lbernstone in #8839
• Update boards.rst by @VojtechBartoska in #8851
• Update warning note about PlatformIO related issues by @VojtechBartoska in #8866
• Added troubleshoot...

The Arduino ESP32 pre-release version 3.0.0-aplha 2 is based on the ESP-IDF v5.1 (release notes) and is major release supporting new version of ESP-IDF 5.1. This release introduce breaking changes and support for new SoCs, ESP32-H2 and ESP32-C6.

Major changes

• Fixes installation on ArduinoIDE 1.x and RV toolchain on Windows
• Update toolchains to use the tar.gz format for IDE1 compatibility by @me-no-dev in #8757
• Rename the RV32 toolchain on release to fit paths in GCC limit by @me-no-dev in #8750

Other changes

• Fix standalone component build and enable CI check for it by @me-no-dev in #8743
• Add the sketch folder as the first include search path by @me-no-dev in #8734
• IDF release/v5.1 by @me-no-dev in #8758

Boards additions and updates

• Add SparkFun ESP32-C6 Qwiic Pocket Development Board Variant by @sfe-SparkFro in #8754
• Fixed bug for LilyGo T-display on boards.txt by @thebear132 in #8744

Full Changelog: 3.0.0-alpha1...3.0.0-alpha2

New Contributors

• @thebear132 made their first contribution in #8744

Thanks for your contribution! 🎉

The Arduino ESP32 pre-release version 3.0.0-aplha is based on the ESP-IDF v5.1 (release notes) and is major release supporting new version of ESP-IDF 5.1. This release introduce breaking changes and support for new SoCs, ESP32-H2 and ESP32-C6.

Known issues of this release

• If you are a Linux or MacOS user, it is mandatory to use Arduino IDE v2 or arduino-cli for the package installation. Arduino IDE v1 currently fails due to limitations related to archive compression.

Breaking changes of 3.0.0 Release

This version introduce breaking changes in this particular APIs:

• ADC
• BLE
• Hall Sensor (not supported)
• I2S
• LEDC
• RMT
• SigmaDelta
• Timer
• UART (HardwareSerial)

For more details please refer to Migration Guide from version 2.x to 3.0.

Major changes

• ESP-IDF v5.1 by @me-no-dev in #7733
• Initial support for ESP32-H2
• Initial support for ESP32-C6 by @me-no-dev in #8337
• API drivers refactoring to support ESP-IDF v5.1 APIs
• Implementations of Peripheral Manager

APIs changes & updates

• ADC refactoring by @P-R-O-C-H-Y in #7827
• TIMER refactoring by @P-R-O-C-H-Y in #7904
• [Arduino Core 3.0.0] RMT IDF5.1 Refactoring #7994 by @SuGlider in #7994
• [Arduino Core 3.0.0] Fixes UART to work with any APB Freq by @SuGlider in #8097
• LEDC Refactoring - Peripheral manager implemented by @P-R-O-C-H-Y in #8126
• TIMER - add timer_started flag, fix timerEnd() + timer HW test by @P-R-O-C-H-Y in #8135
• DAC - Added missing deinit of previous bus by @P-R-O-C-H-Y in #8180
• Update esp32-hal-rmt.c by @SuGlider in #8216
• LEDC - Memory fix by @P-R-O-C-H-Y in #8264
• LEDC Fade implementation by @P-R-O-C-H-Y in #8338
• ESP32-C6 Fixes Settings for RMT and UART source clock by @SuGlider in #8340
• Fixes RMT filter & idle timing and setup by @SuGlider in #8359
• SPI fix for C6 branch by @P-R-O-C-H-Y in #8367
• Removed duplicate TX1 define for ESP32H2 by @PilnyTomas in #8402
• Fixing UART1 pins for esp-idf-v5.1-libs by @petergjoel in #8477
• [ETH] Implement SPI support, multiple interfaces and more by @me-no-dev in #8575
• Analog Continuous mode API by @P-R-O-C-H-Y in #8715
• BLE upgrades by @me-no-dev in #8724

Peripheral Manager implementations

Description of Peripheral Manager is available here.

• TOUCH - Peripheral manager implementation by @P-R-O-C-H-Y in #8129
• GPIO - Peripheral manager implementation by @P-R-O-C-H-Y in #8179
• I2C - Peripheral manager implementation by @P-R-O-C-H-Y in #8220
• SPI - Peripheral manager implementation by @P-R-O-C-H-Y in #8255
• SPI - Peripheral manager fix by @P-R-O-C-H-Y in #8279
• SDMMC - Peripheral manager implementation by @P-R-O-C-H-Y in #8289
• ETHERNET - Peripheral manager implementation by @P-R-O-C-H-Y in #8297
• Adds USB to Peripheral Manager - Arduino Core 3.0.0 by @SuGlider in #8335
• Adds HardwareSerial to Peripheral Manager - Arduino 3.0.0 by @SuGlider in #8328
• Enforces more consistency into Peripheral Manager by @SuGlider in #8188
• 3.0.0 - UART Peripheral Manager + Detach UART pins on begin()/setPins() by @SuGlider in #8719

Other changes

• Makes F_CPU generic for all SoC by @SuGlider in #8007
• Fixes APLL/PLL with RTC Frequency by @SuGlider in #8025
• Add workflow to build executables from python scripts by @me-no-dev in #8290
• Add checks for SOC defines by @P-R-O-C-H-Y in #8351
• Updated FreeRTOS names by @PilnyTomas in #8418
• MD5 memory leak fix by @SuGlider in #8486
• Add support for custom panic handler by @me-no-dev in #8574
• HTTPClient - Fix case sensitiveness for header keys by @lucasssvaz in #8630
• Fix memory leak and undefined behavour in Updater.cpp (UpdaterClass) by @MathewHDYT in #8671
• Serial reorganization code for RS-485 Mode, Flow Control Mode and Serial Mode by @SuGlider in #8718
• Add support for custom panic handler by @me-no-dev in #8711
• Add printf method with FlashStringHelper argument by @lucasssvaz in #8677
• WebServer: use MD5Builder instead of mbedtls by @Staars in #8667
• BT serial: SSP improvements, added missing events by @me-no-dev in #8723
• fix flash mode read out for C6 by @Jason2866 in #8517
• Update PlatformIO scripts for the upcoming 3.0 core by @valeros in #8183
• WiFiGeneric CrashFix 5.1-libs by @mrengineer7777 in #8044
• include ctime by @Jason2866 in #8722

Boards additions and updates

• Master5.1 s3 gpio48 and platform txt review by @SuGlider in #8726
• Fix pin attachInterrupt(digitalPinToInterrupt(48)) on all S3 based SOCs by @SuGlider in #8600
• added namino bianco board + other fix on menus by @a-sapuppo in #8730

Examples

• Adds missing pinMode by @SuGlider in #8312
• fixes preprocessor test by @SuGlider in #8485
• [All Arduino Cores] Adds HardwareSerial Example by @SuGlider in #8095
• SD_MMC update by @PilnyTomas in #8298
• Add TFLite Micro examples by @me-no-dev in #8717

Documentation and CI

• [Docs] ADC and Timer API Update (+some docs fixes) by @P-R-O-C-H-Y in #7906
• HW Testing - Pytest update by @P-R-O-C-H-Y in #8389
• HW Testing - ESP32-C6 + ESP32-H2 fixes by @P-R-O-C-H-Y in #8404
• Update README.md to add new SoCs by @SuGlider in #8727
• Add Arduino lib to arduino as IDF component by @me-no-dev in #8721
• Update of documentation link on readme.md for WifiClientSecure by @benlye in #8441
• Add Arduino lib to arduino as IDF component by @me-no-dev in #8721
• Update release script for 3.0.0 by @me-no-dev in #8728
• Print full chip report when log level is sufficient by @me-no-dev in #8282
• Backport some fixes from esp-idf-v5.1 by @me-no-dev in #7762

Note:
Due to merging development branch into master branch, the changelog does not include all the changes.

Full Changelog: 2.0.14...3.0.0-alpha1

New Contributors

• @MathewHDYT made their first contribution in #8671
• @benlye made their first contribution in #8441
• @Staars made their first contribution in #8667

Thanks for your contribution! 🎉

The Arduino ESP32 version 2.0.14 is based on the ESP-IDF v4.4.6 (release notes) and is bug fix release for Arduino ESP32 Core version 2.X.X.

Major changes & fixes

• Update ESP-IDF to v4.4.6 (with I2S Rollback) by @me-no-dev in #8701
• WiFiClient - Properly initialize and check _rxBuffer by @lucasssvaz in #8699

Minor changes

• Fix BTAdvertisedDeviceSet::toString() method output by @lucasssvaz in #8691

Boards additions and updates

• Corrected pins_arduino.h for Lolin_s3 by @f-io in #8659
• Add IOXESP32 board family and ATD1.47-S3 board by @maxpromer in #8646
• Add Additional Adafruit boards including the new Qualia ESP32-S3 and Camera ESP32-S3 by @makermelissa in #8696

Documentations

• Update of "Arduino Style Guide" link on contributing.rst by @supcik in #8695
• Fix Markdown table format error in SD_MMC's documentation by @raspiduino in #8639
• Fix Mardown table format error in SD library by @raspiduino in #8640
• Documentation - Update supported IDEs and general improvements by @lucasssvaz in #8606

Full Changelog: 2.0.13...2.0.14

New Contributors

• @f-io made their first contribution in #8659
• @raspiduino made their first contribution in #8639
• @makermelissa made their first contribution in #8696

Thanks for your contribution! 🎉

The Arduino ESP32 version 2.0.13 is based on the ESP-IDF v4.4.5 (release notes) and is bug fix release for Arduino ESP32 Core version 2.X.X.

Major changes

• Set ref to 2.0.13 by @SuGlider in #8615
• Uart detach 2.0.13 by @SuGlider in #8629
• removes delay(10) from HardwareSerial::end() by @SuGlider in #8634

Minor changes

• Disable Ethernet library if CONFIG_ETH_ENABLED not defined in sdkconfig.h by @arkhipenko in #8595
• v2.x - HTTPClient - Fix case sensitiveness for header keys by @lucasssvaz in #8632

Boards additions and updates

• lilygo-t-display : rename pins_arduino.h.txt to pins_arduino.h by @PBrunot in #8608
• M5CoreS3 board and partitions update by @tobozo in #8276

Full Changelog: 2.0.12...2.0.13

Thanks for your contribution! 🎉

The Arduino ESP32 version 2.0.12 is based on the ESP-IDF v4.4.5 (release notes) and is last planned bug fix release for Arduino ESP32 Core version 2.X.X.

Major changes

• Fixes ESP32 BT Memory Releasing by @SuGlider in #8551
• Fix I2S crackling in 2.x by @lucasssvaz in #8583
• Allows changing HW CDC Buffer Size after or before begin() by @SuGlider in #8559
• Fix pin attachInterrupt(digitalPinToInterrupt(48)) on all S3 based SOCs by @SuGlider in #8600

Other minor changes

• Removed duplicate MDNS.begin() call in example by @PilnyTomas in #8513
• Reimplemented flush in WiFiClient by @PilnyTomas in #8541
• SD lib - AcquireSPI on ff_sd_status by @P-R-O-C-H-Y in #8536
• When FFat is mounted before SD, then filesystem reports wrong system sizes by @holgerlembke in #8520
• ledc.c: Fix analogWrite() last channel available verification by @rlipas in #8509
• GPIO - make pin mode output_open_drain state readable by @P-R-O-C-H-Y in #8592

Boards additions & updates

• Added a partition table for 32MB ESP32-S3 (4.8/4.8/24) by @lbernstone in #8498
• Nano ESP32: add debug support by @pillo79 in #8567
• Nano ESP32 file system option by @pillo79 in #8566
• Nano ESP32: add pin numbering option by @pillo79 in #8565
• added lilygo t-display (esp32-based) board definition by @PBrunot in #8533
• Update partition_table.rst with Variants Folder detail by @James-4DSystems in #8531
• New 3rd Party Boards - 4D Systems by @James-4DSystems in #8530
• Small pin updates for MatrixPortal S3 by @ladyada in #8521
• Added new UM NanoS3 board. by @UnexpectedMaker in #8487
• add Adafruit metro S3 16MB Flash, 8MB PSRam by @hathach in #8478
• add 'NO_GLOBAL_UPDATE' define to disable global UpdateClass instance by @vortigont in #8500
• feature(m5stack-atom): allow events and loop on core0 in boards.txt by @GautierAtWork in #8462
• Fix for issue #8185 (added SPI default pins for M5Stack Stamp S3 board) by @bsergei in #8187
• new industrial boards namino rosso / namino arancio by @a-sapuppo in #8582
• Adding New Lion:Bit STEM Board by @PradeepKotu in #8569
• Added support for the Aventen S3 Sync by @avencan in #8587

Documentation & CI

• Update adc.rst by @w3jc in #8493
• Doc update: Troubleshooting + SD libs by @PilnyTomas in #8241
• [CI] Fix allboards.yml workflow to use selected branch by @P-R-O-C-H-Y in #8594

Full Changelog: 2.0.11...2.0.12

Thanks everyone for contributing! 🎉

The Arduino ESP32 version 2.0.11 is based on the ESP-IDF v4.4.5 (release notes) and includes quick bug fixes release.

Major change

• Fix for build path (2.0.10 escaping fix by @pillo79 in #8433)

Other minor changes

• Add .readthedocs.yaml configuration file by @pedrominatel in #8352
• Add v2.0.10 into issue template by @VojtechBartoska in #8425

Full Changelog: 2.0.10...2.0.11

The Arduino ESP32 version 2.0.10 is based on the ESP-IDF v4.4.5 (release notes) and includes mainly bug fixes and new boards support.

Changes

Here is a summary of the major changes.

Main fixes

• Fixes HWCDC::end() by @SuGlider in #8247
• Fixes crash when calling twice HWCDC::end() by @SuGlider in #8332
• fixes ESP32-C3 WiFiProv and btInUse() by @SuGlider in #8243
• Provisioning fix and upgrades by @PilnyTomas in #8209
• rainmaker: multiple device callbacks not getting registered by @sanketwadekar in #8249
• Fix for timeout issues on WebServer.cpp by @supersjellie in #8319

New Boards support & boards updates

• Add Arduino Nano ESP32 target by @facchinm in #8417
• Added support for M5Stamp Pico from M5Stack by @MWolfahrt in #8301
• Create M5CoreS3 pins_arduino.h and board by @Tinyu-Zhao in #8161
• add Adafruit QT PY S3 with 4MB flash 2 MB PSRAM by @hathach in #8370
• Add board: Adafruit MatrixPortal ESP32-S3 by @PaintYourDragon in #8230
• I have added support for the DFRobot Romeo ESP32-S3 board. by @fary99 in #8195
• Add board: Nebula S3 by @DocMonster7 in #8257
• Olimex ESP32-GATEWAY fixes in boards.txt and pins_arduino.h by @DanKoloff in #8395

Examples & Documentation

• Updated preferences and FAQ documentation (added SPIFFS) by @PilnyTomas in #8150
• Add TWAI transmit example by @designer2k2 in #8360
• Fixes Serial Example and Adds a new std:func Serial Example by @SuGlider in #8409
• Functional interrupt fix by @PilnyTomas in #8175

Here is a complete list of all changes.

What's Changed

• Add v2.0.9 into Issue Template by @mrengineer7777 in #8156
• Functional interrupt fix by @PilnyTomas in #8175
• Create M5CoreS3 pins_arduino.h and board by @Tinyu-Zhao in #8161
• Updated preferences and FAQ documentation (added SPIFFS) by @PilnyTomas in #8150
• HardwareSerial: fix begin() lock issue on error path by @pillo79 in #8182
• Fixes HWCDC::end() by @SuGlider in #8247
• fixes ESP32-C3 WiFiProv and btInUse() by @SuGlider in #8243
• I have added support for the DFRobot Romeo ESP32-S3 board. by @fary99 in #8195
• Add board: Adafruit MatrixPortal ESP32-S3 by @PaintYourDragon in #8230
• Add board: Nebula S3 by @DocMonster7 in #8257
• Provisioning fix and upgrades by @PilnyTomas in #8209
• rainmaker: multiple device callbacks not getting registered by @sanketwadekar in #8249
• Update ledc.rst by @w3jc in #8218
• Fixes crash when calling twice HWCDC::end() by @SuGlider in #8332
• Fix for timeout issues on WebServer.cpp by @supersjellie in #8319
• add Adafruit QT PY S3 with 4MB flash 2 MB PSRAM by @hathach in #8370
• Added support for M5Stamp Pico from M5Stack by @MWolfahrt in #8301
• Update gpio.rst Documentation: typo in function name 'attachInterrupt' by @schrolli in #8336
• Add TWAI transmit example by @designer2k2 in #8360
• Olimex ESP32-GATEWAY fixes in boards.txt and pins_arduino.h by @DanKoloff in #8395
• Fixes Serial Example and Adds a new std:func Serial Example by @SuGlider in #8409
• set _use_insecure back to false in setCACert method on WiFiClientSecure.cpp by @tuan-karma in #8386
• Set MATRIX_DETACH_* values based on TRM by @colincross in #8345
• Soft-AP: get subnet mask by @rstephan in #8358
• Add Arduino Nano ESP32 target by @facchinm in #8417

Thanks to all new Contributors 🎉

New Contributors

• @pillo79 made their first contribution in #8182
• @fary99 made their first contribution in #8195
• @PaintYourDragon made their first contribution in #8230
• @DocMonster7 made their first contribution in #8257
• @w3jc made their first contribution in #8218
• @supersjellie made their first contribution in #8319
• @MWolfahrt made their first contribution in #8301
• @schrolli made their first contribution in #8336
• @designer2k2 made their first contribution in #8360
• @DanKoloff made their first contribution in #8395
• @tuan-karma made their first contribution in #8386
• @colincross made their first contribution in #8345
• @rstephan made their first contribution in #8358
• @facchinm made their first contribution in #8417

Full Changelog: 2.0.9...2.0.10