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:

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

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

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

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

Migrate to Tasmota 9.1 (http://ota.tasmota.com/tasmota/release-9.1.0/tasmota.bin.gz)
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 v3.1.4.

Support of ESP8266 Core versions before 2.7.8 and ESP32 Core versions before v3.1.4 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

http://ota.tasmota.com/tasmota/release-15.1.0

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, ESP32-S3 and ESP32-P4 based

The following binary downloads have been compiled with ESP32/Arduino library core version v3.1.4.

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-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.
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

https://ota.tasmota.com/tasmota32/release-15.1.0

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 v15.1.0 Stella

Added

Commands LoRaWanDecoder " and LoRaWanName " to clear name #23394
Command I2sPause #23646
Support for RV3028 RTC #23672
Support for RX8030 RTC #23855
Extend state JSON message with functional hostname and ipaddress which could be WiFi or Ethernet
Internal function 'WSContentSendRaw_P' #23641
Universal display driver for ZJY169S0800TG01 ST7789 280x240 #23638
NeoPool add Redox tank alarm #19811
I2S additions #23543
ESP32 ROM SHA Hardware Acceleration to BearSSL #23819
ESP32 Extension Manager, replacing loading of Partition Wizard #23955
Support for ESP32-P4 #23663
Support for ESP32-C5 #23804
ESP32-P4 command HostedOta #23675
Berry f-strings now support ':' in expression #23618
Berry preview of animation framework #23816
Berry call() now works for classes #23744
Berry multiplication between string and int #23850
Berry animation framework web ui to compile DSL #23962

Breaking Changed

Berry animate framework is DEPRECATED, will be replace by animation framework #23854

Changed

ESP8266 platform update from 2025.05.00 to 2025.10.00 #23971
ESP32 Platform from 2025.05.30 to 2025.10.30, Framework (Arduino Core) from v3.1.3.250504 to v3.1.4 and IDF from v5.3.3.250501 to v5.3.4.250826 #23971
Epdiy library from v1.0.0 to v2.0.0
OpenTherm library from v0.9.0 to v1.1.5 #23704
JPEGDEC library from v1.5.0 to v1.8.3 #23883
Library names #23560
Web UI styles and HTML syntax #23847
Make GUI Timer parameters mobile phone friendly #23959
CSS uses named colors variables #23597
VEML6070 and AHT2x device detection #23581
Domoticz supports persistent settings for all relays, keys and switches when filesystem #define USE_UFILESYS is enabled
ESP32 LoRaWan decoding won't duplicate non-decoded message if SO147 0
Use HAL instead of ROM for SHA HW acceleration as used by TLS #23902
BLE updates for esp-nimble-cpp v2.x #23553
Berry raise webserver hooks from 16 to 32 #23748
Berry add argument to werbserver.content_send_style #23953

Fixed

Syslog RFC5424 compliance #23509
Unable to use default serial GPIOs by TasmotaSerial regression from v14.5.0 with IDF 5.3.2.250120 #23775
AHT30 sensor start with null values after deep sleep #23624
NeoPool reset to default settings #23734
Berry vulnerability in JSON parsing for unicode #23603
Berry security issues in int64 and improve documentation #23605
Berry security issues in berry_mapping and improve documentation #23606
Berry Hue regression from #23429 #23623
Berry calling setmember with a function #23825
Berry fixed 'be_top is non zero' warning when calling C mapped functions #23989
Berry fixed 'be_top is non zero' when Br command fails #23990
LVGL restore lv_chart.set_range removed in LVGL 9.3.0 in favor of lv_chart.set_axis_range #23567

Removed

user-scalable=no from HTTP HEADER #23798

arendst/Tasmota v15.1.0 Tasmota v15.1.0 Stella on GitHub