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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 2.7.4.9 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 2.0.9.

Support of ESP8266 Core versions before 2.7.4.9 and ESP32 Core versions before 2.0.9 have been removed.

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 2.7.4.9.

  • 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-C3, ESP32-S2 and ESP32-S3 based

The following binary downloads have been compiled with ESP32/Arduino library core version 2.0.9.

  • tasmota32.bin = The Tasmota version with most drivers including additional sensors and KNX for 4M+ flash. RECOMMENDED RELEASE BINARY
  • tasmota32xy.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C3/S2/S3 and 4M+ flash.
  • tasmota32xycdc.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C3/S2/S3 with serial over embedded USB CDC only and 4M+ flash.
  • tasmota32solo1.bin = The Tasmota version with most drivers including additional sensors and KNX for single core ESP32 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 v12.5.0.3

Added

  • Command SetOption152 0/1 to select two (0 = default) pin bistable or one (1) pin latching relay control #18386
  • Command I2cScan0 to scan both busses on ESP32 with one command
  • Command WifiPower 0 to enable dynamic wifi power based on RSSI by @TD-er #15443
  • Command WifiPower 1 to restore default wifi power
  • Support for TC74 temperature sensor by Michael Loftis #18042
  • Support for GM861 1D and 2D bar code reader #18399
  • Support for PCA9557 8-bit I/O expander #18632
  • Zigbee support for air sensors #18665
  • ESP32 command Shuttersetup for "Shelly 2.5 pro" automatic calibration and setup (experimental)
  • ESP32 Enhanced Shutterbuttons functionality to control tilt position, additionally incr/decr possible to position and tilt.
  • Matter sensors Humidity, Pressure, Illuminance #18441
  • Matter allow Matter#Initialized rule once the device is configured #18451
  • Matter UI to change endpoints configuration #18498
  • Matter support for Shutters with Tilt #18509
  • Matter support for remote relays #18656
  • Berry tcpclientasync class for non-blocking TCP client

Breaking Changed

  • Change command FileUpload index binary data detection from >199 to >299

Changed

  • AdafruitFingerprint library from v2.0.4 to v2.1.0
  • IRremoteESP8266 library from v2.8.4 to v2.8.5
  • ESP32 Framework (Core) from v2.0.7 to v2.0.9
  • InfluxDb resolves DNS name before request #18015
  • Refactored Zero Cross Dimmer #18481
  • Energy power delta report delayed by two seconds allowing hardware to stabilize #17751
  • Shutter sliders in WEBGUI automatically appear and disappear during configuration and update during movement #18701

Fixed

  • ESP8266 no update on Energy Export Active regression from v12.3.1.3
  • NovaSDS GUI values #18444
  • LED PWM ac_dimmer curve was wrongly applied instead of Gamma regression from v12.2.0.5 #18666
  • Shutter bootloop using more than 4 shutters #18673
  • Inverted shutter now reflect status also in WEBGUI and several minor fixes to make "inverted" consistant #18701
  • ESP32 Partition_Manager.tapp
  • ESP32 InfluxDb initial connection delays using HTTPClient #18015
  • ESP32 AIThinker webcam issues #18652
  • ESP32 SPI initialization for MFRC522 #18711
  • Berry a rare condition when a GC causes a memory corruption
  • Berry rules for string comparisons #18464
  • Matter fix fabric provisioning from CASE session for iOS 16.5 #18709