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

Migrate to Sonoff-Tasmota 3.9.x
Migrate to Sonoff-Tasmota 4.x
Migrate to Sonoff-Tasmota 5.14
Migrate to Sonoff-Tasmota 6.7.1 (http://ota.tasmota.com/tasmota/release-6.7.1/)
Migrate to Tasmota 7.2.0 (http://ota.tasmota.com/tasmota/release-7.2.0/)

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

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

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

Migrate to Tasmota 9.1 (http://ota.tasmota.com/tasmota/release-9.1.0/)

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.

Support of Core versions before 2.7.1 has been removed.

Support of TLS

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

Initial configuration tools

For initial configuration this release supports Webserver based WifiManager or Serial based command interface only. Support for WPS and SmartConfig has been removed.

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. RECOMMENDED RELEASE BINARY
tasmota-BG.bin to tasmota-TW.bin = The Tasmota version in different languages.
tasmota-lite.bin = The Lite version without most drivers and sensors.
tasmota-knx.bin = The Knx version without some features but adds KNX support.
tasmota-sensors.bin = The Sensors version adds more useful sensors.
tasmota-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features.
tasmota-display.bin = The Display version without Energy Monitoring but adds display support.
tasmota-zbbridge.bin = The dedicated Sonoff Zigbee Bridge version.
tasmota-minimal.bin = The Minimal version allows intermediate OTA uploads to support larger versions and does NOT change any persistent parameter. This version should NOT be used for initial installation.

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

The binaries can be downloaded from either https://github.com/arendst/Tasmota/tree/release-firmware or http://ota.tasmota.com/tasmota/release. The latter links can be used for OTA upgrades too like OtaUrl http://ota.tasmota.com/tasmota/release/tasmota.bin.gz

ESP32 based

The following binary downloads have been compiled with ESP32/Arduino library core version 1.0.6.

tasmota32.bin = The Tasmota version with most drivers including additional sensors and KNX. RECOMMENDED RELEASE BINARY
tasmota32solo1.bin = The Tasmota version with most drivers including additional sensors and KNX for single core ESP32.
tasmota32-BG.bin to tasmota32-TW.bin = The Tasmota version in different languages.
tasmota32-ir.bin = The InfraRed Receiver and transmitter version allowing all available protocols provided by library IRremoteESP8266 but without most other features.
tasmota32-display.bin = The Display version without Energy Monitoring but adds display support.
tasmota32-webcam.bin = The Webcam version adds webcam support.
tasmota32-bluetooth.bin = The Bluetooth version adds BLE support.
tasmota32-odroidgo.bin = The Odroid-Go version is specifically tailored to Odroid_go hardware.
tasmota32-core2.bin = The Core2 version is specifically tailored to M5Stack Core2 hardware.

The binaries can be downloaded from either https://github.com/arendst/Tasmota/tree/release-firmware or http://ota.tasmota.com/tasmota32/release. The latter links can be used for OTA upgrades too like OtaUrl http://ota.tasmota.com/tasmota32/release/tasmota32.bin

List of embedded modules.

Complete list of available feature and sensors.

Changelog v9.4.0 Leslie

Added

Command Sensor80 1 <0..7> to control MFRC522 RFID antenna gain from 18dB (0) to 48dB (7) #11073
Command SerialBuffer 256..520 to change hardware serial receive buffer size from default (256) to max local buffer size (520) #11448
Command SetOption126 1 to enable DS18x20 arithmetic mean over teleperiod for JSON temperature based on #11472
Command Backlog0 to allow execution of following commands without delay
Command TuyaTempSetRes 0..3 to control Tuya Temperature Set Resolution #11781
Command Wifi 0/1 for ESP8266 to turn wifi Off and On. When wifi is Off it is always returned On after a restart except for a wake-up from deepsleep #11839
Commands MqttKeepAlive 1..100 to set Mqtt Keep Alive timer (default 30) and MqttTimeout 1..100 to set Mqtt Socket Timeout (default 4) #5341
Commands DisplayType to select sub-modules where implemented and DisplayInvert to select inverted display where implemented
Support for SML VBUS #11125
Support for NEC and OPTOMA LCD/DLP Projector serial power control by Jan BubÃƒÂk #11145
Support for XPT2046 touch screen digitizer on ILI9341 display by nonix #11159
Support for zigbee lumi.sensor_wleak #11200
Support for dummy energy monitor using user values set by commands VoltageSet, CurrentSet, PowerSet and FrequencySet. Enable by selecting any GPIO as Option A2 #10640
Support for CSE7761 energy monitor as used in ESP32 based Sonoff Dual R3 Pow #10793
Support for Frequency monitoring and zero-cross detection on CSE7761 (Sonoff Dual R3)
Support for TM1638 seven segment display by Ajith Vasudevan #11031
Support for MAX7219 seven segment display by Ajith Vasudevan #11387
Support for MPU6886 on primary or secondary I2C bus
Support for multiple CCS811 sensors with baseline control (USE_CCS811_V2) by clanganke #10858
Allow MCP230xx pinmode from output to input #11104
Berry improvements #11163
Extent compile time SetOptions support #11204
Tasmota discovery as alternative to Home Assistant discovery using define USE_TASMOTA_DISCOVERY
Optional GUI file editor enabled with define GUI_EDIT_FILE by barbudor #11668
Initial support for universal display driver UDisplay by Gerhard Mutz. Enable by selecting any GPIO as Option A3 #11665
ESP32 Extent BLE #11212
ESP32 support for WS2812 hardware driver via RMT or I2S
ESP32 support for secondary I2C controller
ESP32 support for internal Hall Effect sensor connected to both GPIO36 and GPIO39 only
ESP32 support for LVGL 7.11 with Berry binding by Stephan Hadinger #11789

Breaking Changed

ESP32 partition layout changed to accomodate more file space on most and more code space on core2 and odroid-go #11746

Changed

TasmotaSerial library from v3.2.0 to v3.3.0
PubSubClient library from EspEasy v2.7.12 to Tasmota v2.8.12
IRremoteESP8266 library from v2.7.15 to v2.7.16
ESP32 core library from v1.0.5-rc6 to v1.0.6
TuyaMcu dimmer timeout #11121
Rename epaper 42 commands #11222
DeepSleep announcement topic #11223
Limit number of relay/button columns in GUI to 8 #11546
ADC range result from int to float using command FreqRes for decimal resolution selection #11545
Removed overtemp detection on external energy monitoring devices #11628
Redesigned initial GUI wifi configuration by Adrian Scillato #11693
Redesigned GUI by moving non-configuration buttons from Configuration to new submenu Consoles
In tasmota-sensors.bin enabled support for VL53L0X and disabled TSL2561 #11711
Add HLW8012/BL0937 average pulse calculation by Alex Lovett #11722
Zigbee refactored storage for device configuration and device last known data #11838

Fixed

PN532 on ESP32 Serial flush both Tx and Rx buffers #10910
Light scheme related color changes #11041
Refactor acceleration function for shutter stepper and servo #11088
LM75AD detection on different addresses #11096
Timer loop when console is scrolled up regression from v9.3.0 #11108
Display exception when no file system is present #11125
Scripter and SML fixes #11150
Zigbee exception when bad frame is received #11192
ESP32 flash script for Odroid and Core2 #11227
ESP32 WS2812 bitbang support #11248
DS18x20 driver timing issue #11270
Alexa discovery in hue emulation #11415
HC-SR04 on ESP32 release serial interface if not used #11507
Alexa discovery for ZBBridge #11576
Telegram chat id incorrect size #11660
KNX energy yesterday #11718
Command Power should not reset pulsetime #11805
Teleperiod rule handling regression from v9.3.1.2 #11851

Noted

ESP32 single core tasmota32solo1.bin binary can only be uploaded using the GUI as OTA upload will trigger the watchdog timer

arendst/Tasmota v9.4.0 Tasmota v9.4.0 Leslie on GitHub