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RELEASE NOTES

Migration Information

This version removes support for direct migration from versions before v8.1.0 (Doris)

See migration path for instructions how to migrate to a major version.

Do not upgrade from minimal to minimal version. It will most likely fail at some point and will require flashing via serial. If you do have to use minimal versions, always OTA to a full version of the same release before applying next minimal version.

Pay attention to the following version breaks due to dynamic settings updates:

  1. Migrate to Sonoff-Tasmota 3.9.x
  2. Migrate to Sonoff-Tasmota 4.x
  3. Migrate to Sonoff-Tasmota 5.14 (http://ota.tasmota.com/tasmota/release_5.14.0/sonoff.bin) - NOTICE underscore as a dash is not supported in older versions
  4. Migrate to Sonoff-Tasmota 6.7.1 (http://ota.tasmota.com/tasmota/release_6.7.1/sonoff.bin) - NOTICE underscore as a dash is not supported in older versions
  5. Migrate to Tasmota 7.2.0 (http://ota.tasmota.com/tasmota/release-7.2.0/tasmota.bin)

--- Major change in parameter storage layout ---

  1. Migrate to Tasmota 8.5.1 (http://ota.tasmota.com/tasmota/release-8.5.1/tasmota.bin)

--- Major change in internal GPIO function representation ---

  1. Migrate to Tasmota 9.1 (http://ota.tasmota.com/tasmota/release-9.1.0/tasmota.bin.gz)
  2. Upgrade to latest release (http://ota.tasmota.com/tasmota/release/tasmota.bin.gz)

While fallback or downgrading is common practice it was never supported due to Settings additions or changes in newer releases. Starting with release v9.1.0 Imogen the internal GPIO function representation has changed in such a way that fallback is only possible to the latest GPIO configuration before installing v9.1.0.

Supported Core versions

This release will be supported from ESP8266/Arduino library Core version 2.7.7 due to reported security and stability issues on previous Core version. This will also support gzipped binaries.

This release will be supported from ESP32/Arduino library Core version 3.0.4.

Support of ESP8266 Core versions before 2.7.7 and ESP32 Core versions before 3.0.4 have been removed.

Known issues with v14.1.0

Due to the change from ESP32 Arduino Core2/IDF4 to Arduino Core3/IDF5 not all functionality has been restored. The following features are known not to work on ESP32:

Support of TLS

In addition to TLS using fingerprints now also user supplied CA certs, AWS IoT and Azure IoT is supported. Read full documentation

Initial configuration tools

For initial configuration this release supports Webserver based WifiManager or Serial based command interface.

Initial installation

Easy initial installation of Tasmota can be performed using the Tasmota WebInstaller.

Provided Binary Downloads

ESP8266 or ESP8285 based

The following binary downloads have been compiled with ESP8266/Arduino library core version 2.7.7.

  • tasmota.bin = The Tasmota version with most drivers for 1M+ flash. RECOMMENDED RELEASE BINARY
  • tasmota-4M.bin = The Tasmota version with most drivers and filesystem for 4M+ flash.
  • tasmota-AD.bin to tasmota-VN.bin = The Tasmota version in different languages for 1M+ flash.
  • tasmota-lite.bin = The Lite version without most drivers and sensors for 1M+ flash.
  • tasmota-knx.bin = The Knx version without some features but adds KNX support for 1M+ flash.
  • tasmota-sensors.bin = The Sensors version adds more useful sensors for 1M+ flash.
  • tasmota-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features for 1M+ flash.
  • tasmota-display.bin = The Display version without Energy Monitoring but adds display support for 1M+ flash.
  • tasmota-zbbridge.bin = The dedicated Sonoff Zigbee Bridge version for 2M+ flash.
  • tasmota-zigbee.bin = The dedicated cc25xx Zigbee Bridge version for 4M+ flash.

Above binaries are also available as gzipped version allowing faster uploads.

Latest released binaries can be downloaded from

Historical binaries can be downloaded from

The latter links can be used for OTA upgrades too like OtaUrl http://ota.tasmota.com/tasmota/release/tasmota.bin.gz

ESP32, ESP32-C2, ESP32-C3, ESP32-C6, ESP32-S2 and ESP32-S3 based

The following binary downloads have been compiled with ESP32/Arduino library core version 3.0.4.

  • tasmota32.bin = The Tasmota version with most drivers including additional sensors and KNX for 4M+ flash. RECOMMENDED RELEASE BINARY
  • tasmota32solo1.bin = The Tasmota version with most drivers including additional sensors and KNX for single core ESP32 and 4M+ flash.
  • tasmota32s2.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S2 with serial and 4M+ flash.
  • tasmota32s2cdc.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S2 with serial over embedded USB CDC only and 4M+ flash.
  • tasmota32s3.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-S3 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32c2.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C2 with serial and 4M+ flash.
  • tasmota32c3.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C2 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32c6.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C6 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32-AD.bin to tasmota32-VN.bin = The Tasmota version in different languages for 4M+ flash.
  • tasmota32-bluetooth.bin = The Bluetooth version adds BLE support for 4M+ flash.
  • tasmota32-display.bin = The Display version without Energy Monitoring but adds display support for 4M+ flash.
  • tasmota32-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features for 4M+ flash.
  • tasmota32-lvgl.bin = The LVGL version adds Light and Versatile Graphics Library (LVGL) display support for 4M+ flash.
  • tasmota32-nspanel.bin = The Sonoff NSPanel Smart Scene Wall Switch version with HASPmota display support.
  • tasmota32-webcam.bin = The Webcam version adds webcam support for 4M+ flash.
  • tasmota32-zbbridgepro.bin - The Sonoff Zigbee Bridge Pro version with CC2652P firmware load support.

Latest released binaries can be downloaded from

Historical binaries can be downloaded from

The latter links can be used for OTA upgrades too like OtaUrl https://ota.tasmota.com/tasmota32/release/tasmota32.bin

Additional information

List of embedded modules.

Complete list of available feature and sensors.

Changelog v14.2.0.4

Added

  • Command SetOption69 1 to enable Serial Bridge inverted Receive #22000
  • HX711 optional calibration precision option on command Sensor34 2 <weight in gram> <precision> where <precision> is 1 to 20 #13983
  • Support for I2C M5Unit (Mini)Scales using HX711 driver
  • Support for RX8010 RTC as used in IOTTIMER #21376
  • Energy command PowerSet 60,230 to calibrate both Current and Power with known resistive load of 60W at 230V using calibrated Voltage
  • Energy command CurrentSet 60,230 to calibrate both Power and Current with known resistive load of 60W at 230V using calibrated Voltage
  • MQTT warning if trying to connect without TLS on a port that normally uses TLS #22175
  • Energy Log level 4 message when (Calculated) Apparent Power is less than Active Power indicating wrong calibration #20653
  • Support nexus protocol and calculation of separation limit to rc-switch library #21886
  • KNX additional KnxTx functions and define KNX_USE_DPT9 #22071
  • SML multi TRX line #22056
  • ESP8266 experimental support for second I2C bus
  • Zigbee Koenkk firmware 20240710 for Sonoff Zigbee ZBPro #22076
  • Berry Zigbee improvements to prepare Matter #22083
  • Berry virtual Energy driver #22134
  • Berry improve int64 constructor #22172
  • Matter support for Zigbee Temperature, Humidity and Pressure sensors #22084
  • Matter support for Zigbee Occupancy and Light 0/1/2 (OnOff / Dimmer / White Color Temperature) #22110

Breaking Changed

  • Berry make energy modules changes from #21887 backwards compatible #22046

Changed

  • ESP32 platform update from 2024.08.10 to 2024.09.10 and Framework (Arduino Core) from v3.0.4 to v3.0.5 #22163
  • ESP32 LVGL library from v9.1.0 to v9.2.0 #22031
  • GPIOViewer from v1.5.5 to v1.5.6
  • Add command entered to command error and command unknown message
  • Energy BL09xx command CurrentSet input changed from Ampere to milliAmpere
  • Energy force Apparent Power equals Active Power when (Calculated) Apparent Power is less than Active Power #20653
  • Refactored I2C drivers HTU21, BH1750, SHT3x, iAQ and HYT
  • Refactor and fix PID sensor (PID_USE_LOCAL_SENSOR) read race condition #22162
  • SCD30 Lowered I2C clock from 100k to 50k #15438

Fixed

  • Compilation exception when metrics not found #22170
  • Crash when calling TasmotaSerial destructor when initialized with incorrect arguments #22036
  • Energy calculation #20653
  • SML trx pin error #22119
  • Shutter timing registers overflow #21966
  • Shutter missing HOLD on shutterbutton #22108
  • Shutter remaining issues on shutterinvert #22120
  • PZEM continue energy monitoring when one phase fails #21968
  • BearSSL panic on ESP8266 in rare conditions #22017
  • ModbusBridge request and response logic #22075
  • Autoconf prevent 'init.bat' from stopping on empty lines #22158
  • Zigbee extend timeout for MCU reboot from 5s to 10s #22009
  • Zigbee avoid disabling console serial on ESP32 and improved log messages #22082
  • Zigbee flashing CC2562P with latest firmware #22117
  • Berry avoid readbytes() from crashing when file is too large #22057
  • Berry energy missing attributes #22116
  • Berry I2C to prepare M5Stack I2C STM32 based devices #22143
  • LVGL Added OpenHASP icons to font montserrat-28 #22048
  • Matter fixed UI bug when no endpoints configured #22008
  • Matter fix when Rules are disabled #22016
  • Matter fail to report Shutter status if no shutter is configured in Tasmota #22049
  • Matter fix Waterleak broken after Berry solidification optimisation #21885 #22052

Removed

  • ESP8266 Analog input support using energy driver as only one channel is available
  • Berry remove reuse of methods for interface-like code reuse #21500 #22055