What's Changed

• IDF master by @me-no-dev in #11150
• Modify T-LoRa-Pager device PID by @lewisxhe in #11194
• fix(rmt): memset all config structs to zero before using by @SuGlider in #11203
• feat(zigbee): Add PM2.5 endpoint support by @P-R-O-C-H-Y in #11205
• fix(zigbeeEP): review of names and memory allocation by @SuGlider in #11199
• Add an option to force IDF's default UART clock source by @gonzabrusco in #11191
• fix(board): Alfredo NoU3 pins_arduino.h uses uint8_t but it causes error with esp32-hal-gpio.h by @SaintSampo in #11206
• feat(zigbee): Add battery voltage attribute support by @P-R-O-C-H-Y in #11210
• Use CONFIG_BT_BLUEDROID_ENABLED for enabling by @Jason2866 in #11214
• refactor(rmt): refactored RMT loopback example by @SuGlider in #11221
• fix(usb): uninitilized variable warning message by @SuGlider in #11222
• feat(usb): add a few more consumer control HID commands by @SuGlider in #11227
• fix(usb_hid): duplicated CONSUMER_CONTROL_PLAY_PAUSE by @SuGlider in #11242
• feat(logging): Arduino log redirection by @mathieucarbou in #11159
• check for CONFIG_BT_BLUEDROID_ENABLED in esp32-hal-misc.c by @Jason2866 in #11234
• fix(wifi): Workaround bug in esp_wifi_get_protocol() by @me-no-dev in #11239
• fix(esp32c5): Add proper RTC clock source to uartSetClockSource by @Jason2866 in #11255
• ci(pre-commit): Lock versions to SHA and apply fixes by @lucasssvaz in #11248
• fix(gpio): Fix GPIO warning message by @lucasssvaz in #11268
• docs(language): Enforce English on contributions and issues by @lucasssvaz in #11267
• IDF master by @me-no-dev in #11204
• feat(ledc): clear all fields added to ledc struct in IDF 5.4 by @SuGlider in #11276
• feat(uart): sets correct ESP32/S2 clock source for the example by @SuGlider in #11286
• ci(idf): Use included IDF examples in CI by @lucasssvaz in #11240
• ci(release): Add package JSON with chinese mirrors by @lucasssvaz in #11288
• Update LilyGo T-Watch-S3-Ultra and T-LoRa-Pager variants by @lewisxhe in #11299
• feat(rmt): fixes example to run correctly within IDF 5.x by @SuGlider in #11292
• Update boards.txt with updated CodeCell board variant by @microbotsio in #11313
• New SPI invert hardware SS function in hall-spi and SPI library by @UltimumControl in #11297
• Restore proper pin remapping functionality after 3.2.0 by @pillo79 in #11315
• feat(uart): simplifies UART example based on MODBUS standard by @SuGlider in #11309
• docs(mirror): Add Chinese mirror links by @lucasssvaz in #11317
• fix(spi): Add missing initializer for ss_invert by @lucasssvaz in #11320

New Contributors

• @UltimumControl made their first contribution in #11297

Full Changelog: 3.2.0...3.3.0-alpha1

What's Changed

System PR

• Arduino 3.2.0 based on ESP-IDF v5.4 by @me-no-dev in #10832
• IDF release/v5.4 by @me-no-dev in https://github.com/espressif/arduino-esp32/pull/10980##Chip Support
• IDF release/v5.4 by @me-no-dev in #10998
• IDF release/v5.4 by @me-no-dev in #11060
• IDF release/v5.4 by @me-no-dev in #11149

Chip Support

• fix(bt): Compile error on ESP32-P4 by @iranl in #11035

Peripherals

GPIO

• feat(gpio): allows mixing digital and analog read/write operations by @SuGlider in #11016

RMT

• fix(rmt): Fixed protocol name in RMTReadXJT examples by @tanakamasayuki in #11136

UART

• feat(LP_UART): Implements the ESP32-C6/ESP32-P4 Low Power UART as a possible HardwareSerial port by @SuGlider in #10967
• fix(uart): Fixes UART CI script to work with Arduino Core 3.2.x by @SuGlider in #11077
• fix(UART): sets the correct uart clock source when using begin(baudrate) by @SuGlider in #11122
• fix(uart): uart rx timeout validation with proper log message by @SuGlider in #11141
• fix HardwareSerial Config by @gonzabrusco in #11007

Libraries

Bluetooth & BLE

• fix: BLEAdvertising methods return error codes by @FidelSch in #11154

Ethernet

• fix(eth): Fix RMII Ethernet not being able to be restarted by @me-no-dev in #11048
• feat(eth): Add setters for negotiation, speed and duplex modes by @me-no-dev in #11053
• fix(eth): Set the ETH properties at the correct time by @me-no-dev in #11182

Matter

• fix(matter): commentaries and messages related to factory reset by @SuGlider in #10988
• feat(matter): necessary changes to insights version for esp_matter by @SuGlider in #11042
• fix(matter): removes a few matter 1.4 / IDF 5.4 compilation warning messages by @SuGlider in #11067
• fix(matter): examples must set pin to Digital Mode after analogWrite() and before digitalWrite() by @SuGlider in #11070

Network

• fix(network): fixes a macro name conflict warning by @SuGlider in #11068
• fix(net): Use network_event_handle_t for internal callbacks by @me-no-dev in #11179

WebServer

• fix(camera_webserver): Fix typo in OV2640 definition by @lucasssvaz in #11145

WiFi

• fix(wifi): Disable properly LR mode if it was enabled before by @me-no-dev in #11052
• fix(wifi_scan): Fix some edge cases where WiFi Scan may fail by @me-no-dev in #11188

Zigbee

• fix(zigbee): Update esp-zigbee-sdk to 1.6.3 + necessary fixes by @P-R-O-C-H-Y in https://github.com/espressif/arduino-esp32/pull/10890## Boards Additions & Updates
• feat(zigbee): Add range extender device endpoint by @P-R-O-C-H-Y in #10970
• feat(zigbee): Add Analog endpoint device (input, output, value clusters) by @pwclay in #10950
• fix(zigbee): use correct pressure cluster function in setTolerance by @oddlama in #11008
• feat(zigbee): Add ZigbeeGateway endpoint support + Time Cluster bugfix by @P-R-O-C-H-Y in #11009
• fix(zigbee): use correct carbon dioxide cluster function in setTolerance by @oddlama in #11015
• fix(zigbee): Fixed Guru Meditation crash with Zigbee Analog example by @oli-the-kitty in #11064
• fix(zigbee): Use correct attributeID in setAnalogInputReporting by @P-R-O-C-H-Y in #11065
• feat(Zigbee): Adding Zigbee Wind speed sensor endpoint by @lboue in #10455
• feat(zigbee): Save network channel after 1st joining for faster rejoin by @P-R-O-C-H-Y in #11123
• feat(zigbee): Add Illuminance sensor endpoint by @MikaFromTheRoof in #11171
• feat(zigbee): Add check, boolean returns, fix Analog, add optional reset on factoryReset by @P-R-O-C-H-Y in #11153

Boards Additions & Updates

• fix(board): Update pins_arduino.h for Geekble_ESP32C3 by @SooDragon in #11000
• fix(board): Update feathers3 wire1 pin definition by @ericlewis in #11001
• feat(boards): Add Geekble-nano-ESP32S3 by @SooDragon in #11005
• Update of Boards.txt & variants - Adding CYObot board - 3rd party board by @mhpham23 in #10947
• fix: Geekble Nano board setup update by @SooDragon in #11131
• fix(esp32s3usbotg) stdbool dependency in pins_arduino.h by @complxdbg in #11155
• fix: Add 16M flash option for xiao_esp32_s3_plus by @ackPeng in #11183
• fix(arduino_pins): fixes Lolin-C3-Pico and C3-Mini RGB LED pin + C3-Pico SPI SCK pin definition by @SuGlider in #11186
• Update LilyGo variants and add new variants by @lewisxhe in #11192

CI & testing

• test(wokwi): Add I2C Master test and enable GPIO and PSRAM tests by @lucasssvaz in #10848
• ci(report): Add runtime tests report by @lucasssvaz in #10764
• ci(runners): Bump runner images version by @lucasssvaz in #10960
• ci(esp32p4): Add missing options for P4 by @lucasssvaz in #11014
• ci(hw): Fix files being overwritten by @lucasssvaz in #11019
• ci(actions): Replace changed-files by @lucasssvaz in #11130
• ci(workflows): Lock actions to commits and improve readability by @lucasssvaz in #11147
• fix(ext_lib): Fix ESPAsyncWebServer URL and examples by @lucasssvaz in #11160
• test(i2c): Add test to scan bus by @lucasssvaz in #11022
• test(i2c): Do not use delta as Wokwi timing can be inconsistent by @lucasssvaz in #11080
• ci(zigbee): Check if Zigbee is enabled for CI tests by @lucasssvaz in #11012

Documentation

• docs(esp32p4): Add missing information and improve organization by @lucasssvaz in #11081

FreeRTOS

• fix(freertos_stats): remove volatile c++ 20 deprecated warning by @SuGlider in #11158

Others

• Add a Default 32MB partition by @Math0XK in #11143

New Contributors

• @pwclay made their first contribution in #10950
• @ericlewis made their first contribution in #11001
• @mhpham23 made their first contribution in #10947
• @oddlama made their first contribution in #11008
• @iranl made their first contribution in #11035
• @oli-the-kitty made their first contribution in #11064
• @Math0XK made their first contribution in #11143
• @complxdbg made their first contribution in #11155
• @ackPeng made their first contribution in #11183
• @FidelSch made their first contribution in #11154
• @MikaFromTheRoof made their first contribution in #11171

Full Changelog: 3.1.3...3.2.0

What's Changed

System PR

• IDF release/v5.4 by @me-no-dev in #11060

Chip Support

• fix(bt): Compile error on ESP32-P4 by @iranl in #11035

Peripherals

GPIO

• feat(gpio): allows mixing digital and analog read/write operations by @SuGlider in #11016

Ethernet

• fix(eth): Fix RMII Ethernet not being able to be restarted by @me-no-dev in #11048
• feat(eth): Add setters for negotiation, speed and duplex modes by @me-no-dev in #11053

Matter

• feat(matter): necessary changes to insights version for esp_matter by @SuGlider in #11042
• fix(matter): removes a few matter 1.4 / IDF 5.4 compilation warning messages by @SuGlider in #11067
• fix(matter): examples must set pin to Digital Mode after analogWrite() and before digitalWrite() by @SuGlider in #11070

Network

• fix(network): fixes a macro name conflict warning by @SuGlider in #11068

WiFi

• fix(wifi): Disable properly LR mode if it was enabled before by @me-no-dev in #11052

Zigbee

• fix(zigbee): Fixed Guru Meditation crash with Zigbee Analog example by @oli-the-kitty in #11064
• fix(zigbee): Use correct attributeID in setAnalogInputReporting by @P-R-O-C-H-Y in #11065
• fix(zigbee): Add manuf_code to report attribute commands by @P-R-O-C-H-Y in #11066
• feat(Zigbee): Adding Zigbee Wind speed sensor endpoint by @lboue in #10455

CI & testing

• test(i2c): Add test to scan bus by @lucasssvaz in #11022

New Contributors

• @iranl made their first contribution in #11035
• @oli-the-kitty made their first contribution in #11064

Full Changelog: 3.2.0-RC1...3.2.0-RC2

What's Changed

System PR

• Arduino 3.2.0 based on ESP-IDF v5.4 by @me-no-dev in #10832
• IDF release/v5.4 by @me-no-dev in #10980
• IDF release/v5.4 by @me-no-dev in #10998

GPIO

• fix HardwareSerial Config by @gonzabrusco in #11007

UART

• feat(LP_UART): Implements the ESP32-C6/ESP32-P4 Low Power UART as a possible HardwareSerial port by @SuGlider in #10967

Matter

• fix(matter): commentaries and messages related to factory reset by @SuGlider in #10988

Zigbee

• fix(zigbee): Update esp-zigbee-sdk to 1.6.3 + necessary fixes by @P-R-O-C-H-Y in #10890
• feat(zigbee): Add range extender device endpoint by @P-R-O-C-H-Y in #10970
• feat(zigbee): Add Analog endpoint device (input, output, value clusters) by @pwclay in #10950
• fix(zigbee): use correct pressure cluster function in setTolerance by @oddlama in #11008
• feat(zigbee): Add ZigbeeGateway endpoint support + Time Cluster bugfix by @P-R-O-C-H-Y in #11009
• fix(zigbee): use correct carbon dioxide cluster function in setTolerance by @oddlama in #11015

Boards Additions & Updates

• fix(board): Update pins_arduino.h for Geekble_ESP32C3 by @SooDragon in #11000
• fix(board): Update feathers3 wire1 pin definition by @ericlewis in #11001
• feat(boards): Add Geekble-nano-ESP32S3 by @SooDragon in #11005
• Update of Boards.txt & variants - Adding CYObot board - 3rd party board by @mhpham23 in #10947

CI & testing

• test(wokwi): Add I2C Master test and enable GPIO and PSRAM tests by @lucasssvaz in #10848
• ci(report): Add runtime tests report by @lucasssvaz in #10764
• ci(runners): Bump runner images version by @lucasssvaz in #10960
• ci(esp32p4): Add missing options for P4 by @lucasssvaz in #11014
• ci(zigbee): Check if Zigbee is enabled for CI tests by @lucasssvaz in #11012

New Contributors

• @pwclay made their first contribution in #10950
• @ericlewis made their first contribution in #11001
• @mhpham23 made their first contribution in #10947
• @oddlama made their first contribution in #11008

Full Changelog: 3.1.3...3.2.0-RC1

What's Changed

• Fix crash in String when using nullptr (#10971) by @TD-er in #10972

Full Changelog: 3.1.2...3.1.3

What's Changed

System PR

• IDF release/v5.3 by @me-no-dev in #10873

Peripherals

GPIO

• Bugfix/include order by @SuGlider in #10841

I2S

• Fix(i2s): Check if pin is used before clearing bus by @P-R-O-C-H-Y in #10833
• Fix(i2s): Add missing initializer for I2S CLK config by @me-no-dev in #10963

UART

• Fix(UART): ESP32-S2 UART baud rate detection CI test case by @SuGlider in #10926

USB

• Feat(cdc): Add support for two CDC ports at once by @me-no-dev in #10962

Libraries

FS

• Fix(littlefs): Converted core disableWDT functions to bool by @lbernstone in #10896
• Fix(SPIFFS): Use new disableWDT bool return value by @TD-er in #10909

Matter

• Fix(matter): serial print instead of log_i by @SuGlider in #10842

Network

• NetworkEvents allow stack size to be changed. by @thekurtovic in #10805
• Fix: Update the root certificate for the BasicHttpsClient example by @blueskyson in #10911

OTA

• Fix(ota): Make sure that ArduinoOTA.end() is called in the destructor by @me-no-dev in #10932

WIFI

• Fix(wifi): Make sure that esp-hosted events are propagated by @me-no-dev in #10939

Zigbee

• Fix(zigbee): Fixes in handlers, destructors and co2 sensor delta reporting by @P-R-O-C-H-Y in #10834
• Feat(zigbee): Add 2MB + 8MB partitions by @P-R-O-C-H-Y in #10864
• Add IAS Zone Notification Message service to ZigbeeHandlers and ZigbeeEP.h by @lsroka76 in #10821
• Feat(zigbee): Add Time cluster support + fix of duplicate indentify cluster by @P-R-O-C-H-Y in #10863
• Feat(zigbee): Add IAS Zone endpoints (Contact Switch + Door/Window Handle) by @P-R-O-C-H-Y in #10918
• Created Zigbee Endpoint for Window Covering. by @hennikul in #10914
• Fix(zigbee): Add default destructor to Window Covering and fix initialization of tm struct by @P-R-O-C-H-Y in #10943
• Feat(zigbee): Add OTA client cluster support by @P-R-O-C-H-Y in #10946
• Feat(zigbee): Add vibration sensor endpoint by @P-R-O-C-H-Y in #10944
• Feat(zigbee): Support HSV color commands for RGB light endpoint by @P-R-O-C-H-Y in #10959

Boards Additional & Updates

• Feat(esp32): Added a new device(xiao esp32s3 plus) by @is-qian in #10768
• Feat(board): Update 3rd party board Huidu HD-WF2/HD-WF4 by @vortigont in #10957

CI & testing

• Fix(ci): Disable some RainMaker examples on ESP32 by @me-no-dev in #10931
• Build(deps): bump cryptography from 43.0.1 to 44.0.1 in /tests by https://github.com/dependabot in #10961

Documentation

• Docs(discord): Replace Gitter links with Discord by @lucasssvaz in #10852
• Update README.md to add ESP-SR by @akdeb in #10925

Others

• Fix crash when using String::move on empty string (#10938) by @TD-er in #10945
• Fix(logging): incorrect FPS logging by @TNeutron in #10921

New Contributors

• @is-qian made their first contribution in #10768
• @lsroka76 made their first contribution in #10821
• @blueskyson made their first contribution in #10911
• @TNeutron made their first contribution in #10921
• @akdeb made their first contribution in #10925
• @thekurtovic made their first contribution in #10805
• @hennikul made their first contribution in #10914

Full Changelog: 3.1.1...3.1.2

What's Changed

System PR

• ESP32 Arduino v3.1.x by @me-no-dev in #10202
• Restore Arduino Client API by @pennam in #10776
• IDF release/v5.3 by @me-no-dev in #10816
• Fix(platform): Improve firmware size calculation by @me-no-dev in #10820

Libraries

Matter

• Feat(matter): new Matter Endpoint for Thermostat by @SuGlider in #10755
• Feat(matter): Changes Matter Temperature Sensor to report Celsius by @SuGlider in #10759
• Feat(matter): adds esp_matter:: namespace to attribute_t by @SuGlider in #10807

Network

• Fix(udp): Add missing LwIP locks to init multicast #10813
• ESPmDNS: Add method for querying discovered service name by @stefan-sherwood in #10819

WebServer

• Feat(webserver): Middleware with default middleware for cors, authc, curl-like logging by @mathieucarbou in #10750

WiFi

• Improving logging message while waiting for WiFi by @ramprasadg in #10739

Zigbee

• Fix(zigbee): Fixes of timeout, example, warnings and bounding + add a 2MB part scheme for Zigbee ED by @P-R-O-C-H-Y in #10817

Boards Additions & Updates

• Feat(board): Add custom board YB-ESP32-S3-ETH by @yellobyte in #10741
• Add two more Adafruit Boards (Sparkle Motion & Sparkle Motion mini) by @ladyada in #10809
• Feat(board): Add custom board Huidu HD-WF2/HD-WF4 - esp32-s3 HUB75 driver boards by @vortigont in #10779

CI & testing

• CI(debug): Compile once a week with verbose log level by @lucasssvaz in #10740
• Fix(component): Checkout proper branch for uploading component by @lucasssvaz in #10752
• Fix(component): Add check for workflow_run by @lucasssvaz in #10753
• CI : Allow push to the component registry from a given git ref by @me-no-dev in #10757
• CI(dangerjs): Fix and update settings by @lucasssvaz in #10770

Documentation

• Fix(readme): Update readme and fix badges by @lucasssvaz in #10745

Others

• Fix(camera): Update resolutions and remove face detection by @me-no-dev in #1081
• Docs(3rd-party): Add section for third party tools by @lucasssvaz in #10749

New Contributors

• @ramprasadg made their first contribution in #10739
• @pennam made their first contribution in #10776
• @stefan-sherwood made their first contribution in #10819

Full Changelog: 3.1.0...3.1.1

The Arduino ESP32 version 3.1.0 is stable release of new major release based on the ESP-IDF v5.3.2 (release notes).

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

Known Issues

• I2C Slave is currently not working in ESP32-P4. Ongoing investigation.
• RainMaker sketches are crashing in the current version. Pending fixes from RainMaker team.

What's Changed

System PR

• IDF release/v5.3 by @me-no-dev in #10258
• DF release/v5.3 by @me-no-dev in #10272
• IDF release/v5.3 by @me-no-dev in #10403
• IDF release/v5.3 by @me-no-dev in #10416
• IDF release/v5.3 by @me-no-dev in #10444
• IDF release/v5.3 by @me-no-dev in #10465
• IDF release/v5.3 by @me-no-dev in #10473
• IDF release/v5.3 by @me-no-dev in #10480
• IDF release/v5.3 by @me-no-dev in #10498
• IDF release/v5.3 by @me-no-dev in #10503
• IDF release/v5.3 by @me-no-dev in #10522
• IDF release/v5.3 by @me-no-dev in #10599
• IDF release/v5.3 by @me-no-dev in #10711
• IDF release/v5.3 by @me-no-dev in #10719

Chip Support

• feat(esp32p4): Add initial ESP32-P4 support by @lucasssvaz in #10358
• fix(esp32p4): Fix compilation errors by @lucasssvaz in #10371
• fix(esp32): ESP32-U4WDH chip detection by ESP.getChipModel() by @mstegen in #10696
• feat(chip): Add definition for BOOT_PIN for all chips by @me-no-dev in #10700

Peripherals

GPIO

• fix(HardwareSerial): fix pin remapping in begin() on master by @pillo79 in #10379

I2S

• fix(i2s): Use separate variables when reading and writing by @me-no-dev in #10509

LEDC

• fix(example): print correct fade direction by @P-R-O-C-H-Y in #10450

PSRAM

• fix(psram): Init PSRAM before app_main to fix mmu_map by @me-no-dev in #10390
• fix(psram): Do not abort if PSRAM is not found by @me-no-dev in #10395
• fix(spiram): Fix OPI PSRAM init by @me-no-dev in #10406
• test(psram): Add PSRAM test by @lucasssvaz in #10409

Touch

• feat(touch): Support NG touch driver for P4 by @P-R-O-C-H-Y in #10448

UART

• fix(uart): sleep retention by @SuGlider in #10248
• feat(uart) : 3.1.x Core: fixes serialEventRun() to avoid calling available() if serialEvent() is not declared by @SuGlider in #10428
• fix(uart): Add missing HP UARTs for ESP32-P4 by @lucasssvaz in #10447
• ESP32-P4 UART Pin Definitions by @SuGlider in #10521
• feat(uart): uart break example improvement by @SuGlider in #10525
• feat(uart): adds Serial4 as a keyword - used by ESP32-P4 by @SuGlider in #10619
• feat(uart): [IDF 5.3] fixes HardwareSerial::updateBaudRate() using a baud rate higher 230400 - checks UART Clock Source by @SuGlider in #10643
• refactor(uart): Refactor UART test to work with any number of UARTs by @lucasssvaz in #10593

USB

• feat(usb_hid_keyboard): Adds Keyboard Layout and Sends reports just for Modifier Keys by @SuGlider in #10591
• fix(hid): Fix OUTPUT report not received by @me-no-dev in #10398

Libraries

Bluetooth & BLE

• fix(ble): Fixed typos (or copy/paste issues) in comments for AD types in BLEAdvertising by @thomasw-mitutoyo-ctl in #10512
• BLECharacteristic optimization by @sylque in #10665
• fix(example):Update comment in BLE5_periodic_advertising.ino by @ASDosjani in #10538

Ethernet

• Add RMII Ethernet support for ESP32-P4 by @me-no-dev in #10479
• fix(eth): Set default clock in pin value to zero by @me-no-dev in #10513
• Guard ethernet parts to make it possible to use without by @Jason2866 in #10609

FS

• fix(littlefs): Add missing dependency by @clashman in #10496

Matter

• Update Matter Light README.md by @lboue in #10357
• feat(matter): initial commit with arduino matter lib by @SuGlider in #10467
• feat(Matter): New Matter Endpoint - Dimmable Light by @SuGlider in #10543
• Matter example patch by @SuGlider in #10618
• feat(matter): New Matter Endpoint by @SuGlider in #10628
• Adds a Minimum Code Matter Example by @SuGlider in #10639
• feat(Matter): add new MatterColorLight endpoint by @SuGlider in #10654
• feat(matter): New example => Wifi Prov within Matter as alternative for wireless network provisioning by @SuGlider in #10658
• feat(matter): Adds Matter Enhanced Color Light Endpoint (CW/WW/RGB) by @SuGlider in #10657
• feat(matter): Adds a new Matter Endpoint: Generic Switch (smart button) by @SuGlider in #10662
• feat(Matter): Creates New Matter Fan Controller Endpoint by @SuGlider in #10691
• feat(matter): adds new Temperature Sensor Matter Endpoint by @SuGlider in #10698
• feat(Matter): Adds New Matter Humidity Sensor Endpoint by @SuGlider in #10703
• feat(matter_examples): apply boot button change to all examples by @SuGlider in #10702
• feat(matter): adds a Pressure Sensor Matter Endpoint by @SuGlider in #10710
• feat(matter): creates a Matter Contact Sensor Endpoint by @SuGlider in #10712
• feat(matter): adds new Matter Occupancy Sensor endpoint by @SuGlider in #10717
• feat(matter): adds a new endpoint to Matter - On/Off Plugin (Power Relay) by @SuGlider in #10722
• feat(matter): General Review - remove while(!serial) ipv6(enable) and fixes some commentaries in the code by @SuGlider in #10732
• feat(matter): Adds Identification callback to all matter endpoints by @SuGlider in #10734

Network

• fix(asyncudp): Fixes and implements tcpip thread locking by @HamzaHajeir in #10415
• fix(NetworkEvents lib): remove checks for duplicated event handlers by @vortigont in #10376
• fix(sntp): Lock / Unlock LWIP if CONFIG_LWIP_TCPIP_CORE_LOCKING is set by @mathieucarbou in #10529
• fix(net): Allow to compile without IPv6 enabled by @me-no-dev in #10582
• fix(network): Avoid returning zero if connection is not dropped by @lucasssvaz in #10640
• Guard WPA Enterprise support by @Jason2866 in #10616
• fix(sntp): Lock / Unlock LWIP if CONFIG_LWIP_TCPIP_CORE_LOCKING is set by @mathieucarbou in #10725
• [NetworkClient] Init members of NetworkClient by @TD-er in #10737
• fix(WPS): Example config initialization by @me-no-dev in #10399
• fix(IPaddress): IPv6 restore zone id by @s-hadinger in #10546

OTA

• OTA Library adjust by @SuGlider in #10627

OpenThread

• feat(openthread): add license declaration ...

What's Changed

System PR

• fix(build): Allow Arduino to compile in IDF without components by @me-no-dev in #10597
• IDF release/v5.3 by @me-no-dev in #10599

Peripherals

USB

• feat(usb_hid_keyboard): Adds Keyboard Layout and Sends reports just for Modifier Keys by @SuGlider in #10591

Libraries

Bluetooth & BLE

• fix(example):Update comment in BLE5_periodic_advertising.ino by @ASDosjani in #10538

Matter

• feat(Matter): New Matter Endpoint - Dimmable Light by @SuGlider in #10543

Network

• fix(sntp): Lock / Unlock LWIP if CONFIG_LWIP_TCPIP_CORE_LOCKING is set by @mathieucarbou in #10529
• fix(net): Allow to compile without IPv6 enabled by @me-no-dev in #10582

WiFi

• fix(IPaddress): IPv6 restore zone id by @s-hadinger in #10546
• fix(wifi): Fix requirements and guards for hosted Wi-Fi by @lucasssvaz in #10579
• fix(wifi): fixes WiFi.isconnected() to return true when it is connected and it has an IP Addr by @SuGlider in #10595

Zigbee

• feat(Zigbee): Support for sleepy device + Power Source and battery level + Humidity sensor cluster by @P-R-O-C-H-Y in #10551
• fix(Zigbee): Fix typo in Zigbee_Temp_Hum_Sensor_Sleepy.ino by @lboue in #10581

Boards Additions & Updates

• fix(bm): Board Manager install will fail on Windows by @me-no-dev in #10533
• feat(boards): add Waveshare ESP32-S3-Touch-AMOLED boards by @wurongmin in #10549

CI & testing

• ci(workflows): General improvements and fixes by @lucasssvaz in #10544
• fix(wokwi): Delete generated diagram to avoid issues running locally by @lucasssvaz in #10567
• fix(esptool): Bump esptool version to 4.9.dev1 on 3.1.x by @lucasssvaz in #10570
• ci(json): Improve requirement checking by @lucasssvaz in #10554
• fix(tests): Fix wrong selection of tests and add debug flag for testing by @lucasssvaz in #10583

Documentation

• docs(lib-builder): Improve UI and Docker image sections by @lucasssvaz in #10535
• fix(typo): Fix typo in CDC DFU flash tutorial by @jurstu in #10584

Tooling

• fix(get.py): Check if win32 tools also exist when running on win64 by @lucasssvaz in #10565

New Contributors

• @ASDosjani made their first contribution in #10538
• @jurstu made their first contribution in #10584

Full Changelog: 3.1.0-RC2...3.1.0-RC3

The Arduino ESP32 version 3.1.0-RC2 is second release candidate of new major release based on the ESP-IDF v5.3.0 (release notes).

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

System PR

• IDF release/v5.3 by @me-no-dev in #10258
• IDF release/v5.1 by @me-no-dev in #10257
• IDF release/v5.3 by @me-no-dev in #10465

Peripherals

UART

• fix(uart): Add missing HP UARTs for ESP32-P4 by @lucasssvaz in #10447
• feat(uart): uart break example improvement by @SuGlider in #10525
• ESP32-P4 UART Pin Definitions by @SuGlider by #10521

PSRAM

• fix(psram): Init PSRAM before app_main to fix mmu_map by @me-no-dev in #10390
• fix(psram): Do not abort if PSRAM is not found by @me-no-dev in #10395
• test(psram): Add PSRAM test by @lucasssvaz in #10409
• fix(spiram): Fix OPI PSRAM init by @me-no-dev in #10406

SDMMC

• feat(sdmmc): Add SDMMC support for P4 + remove BUILTIN LED by @P-R-O-C-H-Y in #10460

Ethernet

• fix(eth): Set default clock in pin value to zero by @me-no-dev in #10513
• Add RMII Ethernet support for ESP32-P4 by @me-no-dev in #10479

I2S

• fix(i2s): Use separate variables when reading and writing by @me-no-dev in #10509

Touch

• feat(touch): Support NG touch driver for P4 by @P-R-O-C-H-Y in #10448

BLE

• fix(ble): Fixed typos (or copy/paste issues) in comments for AD types in BLEAdvertising by @thomasw-mitutoyo-ctl in #10512

Libraries

LittleFS

• fix(littlefs): Use VFSImpl::exists() to avoid false error log by @BlueAndi in #10217
• fix(littlefs): Add missing dependency by @clashman in #10496

Network Events

• fix(NetworkEvents): Don't skip event callbacks in NetworkEvents::remo… by @LeeLeahy2 in #10337
• fix (NetworkEvents lib): remove checks for duplicated event handlers by @vortigont in #10376

HTTP

• fix(http): Replace flush() with clear() in HTTPClient by @me-no-dev in #10269

ESPNow

• change(esp_now_serial): No teardown on retry limit by @ClockeNessMnstr in #10293

Arduino Stream

• fix(api): Update Arduino Stream class by @me-no-dev in #10328
• Fix missing virtual declarations in Stream.h by @TD-er in #10348

Zigbee

• feat(zigbee): Add Zigbee library by @P-R-O-C-H-Y in #10265
• fix(zigbee): Enable the internal pull-up resistor for BUTTON_PIN by @lboue in #10491

Tone

• Adds setToneChannel() implementation by @SuGlider in #10305

OpenThread

• OpenThread Example Improvement by @SuGlider in #10299

Matter

• feat(matter): initial commit with arduino matter lib by @SuGlider in #10467
• Update Matter Light README.md by @lboue in #10357

RTOS

• feature(rtos): Add Tasks status print function by @me-no-dev in #10515

Wire

• Wire library: Add conditional compilation for second I2C interface based on SOC_I2C_NUM by @sivar2311 in #10408

Boards Additions & Updates

• Added Unexpected Maker OMGS3 by @UnexpectedMaker in #10298
• Added Sparkfun ESP32-S3 Thing Plus board by @Vigeant in #10382
• Add Waveshare ESP32 Touch AMOLED 2.41 by @wurongmin in #10342
• Add IOXESP32-C6 and ATD3.5-S3 board by @maxpromer in #10471
• Add our new board "cezerio dev ESP32C6" by @DogushC in #10462
• Add Waveshare ESP32-S3-Touch-LCD-1.46 board by @Sail-211010 in #10482
• Added variant for Waveshare ESP32-S3-Touch-AMOLED-1.8 by @Y1hsiaochunnn in #10433
• Add the Waveshare ESP32-S3-Touch-LCD-1.85 board by @Sail-211010 in #10477
• fix(build): Fix sdkconfig copy for board manager by @lucasssvaz in #10484

CI & Testing

• ci(push): Use FQBN from ci.json by @lucasssvaz in #10267
• ci(release): Make workflows dependent on release completion by @lucasssvaz in #10260
• ci(tests): Add linpack FPU tests by @lucasssvaz in #10389
• fix(ci): Boards test - get correct file for the diff by @P-R-O-C-H-Y in #10507

Documentation

• docs(contrib): Add instructions on how to test changes by @lucasssvaz in #10221

Tooling

• feat(pre-commit): Add JSON formatter to pre-commit hooks by @lucasssvaz in #10324
• feat(esptool): Update esptool to v4.8.1 by @lucasssvaz in #10524

Full Changelog: 3.1.0-RC1...3.1.0-RC2

New Contributors

• @wurongmin made their first contribution in #10342
• @LeeLeahy2 made their first contribution in #10337
• @ClockeNessMnstr made their first contribution in #10293
• @Bharat-Pi made their first contribution in #10402
• @HamzaHajeir made their first contribution in #10415
• @H-sw123 made their first contribution in #10434
• @Sail-211010 made their first contribution in #10477
• @clashman made their first contribution in #10496
• @thomasw-mitutoyo-ctl made their first contribution in #10512
• @zinkett made their first contribution in #10510

Thank you for your contribution! 🎉