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Tasmota/RELEASENOTES.md
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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 2.7.8 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 v3.3.8.

Support of ESP8266 Core versions before 2.7.8 and ESP32 Core versions before v3.3.8 have been removed.

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 2.7.8.

  • 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-C5, ESP32-C6, ESP32-P4, ESP32-S2 and ESP32-S3 based

The following binary downloads have been compiled with ESP32/Arduino library core version v3.3.8.

  • 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.
  • 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-C3 with USB HWCDC and fallback to serial and 4M+ flash.
  • tasmota32c5.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-C5 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.
  • tasmota32p4.bin = The Tasmota version with most drivers including additional sensors and KNX for ESP32-P4 with USB HWCDC and fallback to serial 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.
  • 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 v15.4.0.3

Added

  • Command SetOption [0..2] to display SetOption values
  • Command WcResolution 0..24 increasing camera max resolution from 14 to 24
  • Support for hostname generation using single-specifier Format() patterns #24731
  • Support for Modbus RX Enable GPIO #24726
  • Support for multi-byte chars like emojis (💡) in light device toggle buttons #24482
  • Support for M5Stack Atom S3R drivers #24747
  • Support for uDisplay ST7305 #24738
  • Support for Modbus Relays #24812
  • Support for hosted MCU other than esp32c6
  • Serial console support for Backspace when enabling #define USE_SERIAL_BACKSPACE #24830
  • Trigger events to Berry when USE_RULES is not enabled #24796
  • MiElHVAC extend support of AirDirection control #24675
  • ESP32 VID6608 hardware RMT support for Automotive gauge driver #24759
  • Berry add support for pre-processor #24679
  • Berry transpose C defines to Berry in tasmota_defines_for_berry.be #24680
  • Berry RGBW white blend and 10-bit gamma support to Berry LED pixel rendering #24750
  • Berry manual tool to compare and verify solidification between C and Python #24754

Breaking Changed

Changed

  • ESP32 Platform from 2025.04.30 to 2026.05.50, Framework (Arduino Core) from v3.1.11 to v3.3.8.260506 and IDF from v5.3.4.260127 to v5.5.4.260407 #24718
  • Sensirion_Core library from v0.7.2 to arduino-core v0.7.3
  • SCD30 library FrogmoreScd30 to Sensirion arduino-i2c-scd30 v1.1.1
  • SCD4x library FrogmoreScd40 to Sensirion arduino-i2c-scd4x v1.1.0
  • SPS30 library Sensirion arduino-i2c-sps30 v1.0.1
  • Increase security by inverting state of define DISABLE_REFERER_CHK controlling remote HTTP access which is now default off
  • ESP8266 wrap printf and replace with stubs reducing flash size by 6k #24714
  • Move autoconf repository to ota.tasmota.com #24754
  • Berry format() now uses internal ext_snprintf_P() for floating point formatting #24725
  • LVGL splash screen uses default Montserrat-14 instead of Montserrat-20 on small screens #24735

Fixed

  • Crash when MQTT-TLS when tcp connection failed #24798
  • SPS30 not detected on ESP8266 #24780
  • I80 pushColors swap logic for parallel displays #24766
  • MiElHVAC sensor and settings out of sync #24813
  • NeoPool possible overflow/div-zero errors and Hydrolysis module detection #24724
  • Seesaw encoder position tracking in light control mode #24730
  • Berry write(value:int | s:string) -> nil internal argument parsing #24800

Removed

  • USE_UNIVERSAL_TOUCH no more forced when USE_UNIVERSAL_DISPLAY is enabled #24743
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