# Tasmota v15.6.0 — Tasmota v15.6.0 Sylvie

- Product: Tasmota (https://whatsnew.fyi/product/tasmota)
- Vendor: Theo Arends
- Date: 2026-08-25
- Version: v15.6.0
- Original notes: https://github.com/arendst/Tasmota/releases/tag/v15.6.0
- Permalink: https://whatsnew.fyi/product/tasmota/releases/v15.6.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **removed** — Removed support for direct migration from versions before v8.1.0 (Doris)
- **changed** — Minimum supported ESP8266/Arduino library Core version is now 2.7.8
- **changed** — Minimum supported ESP32/Arduino library Core version is now v3.3.8
- **removed** — Removed support for ESP8266 Core versions before 2.7.8
- **removed** — Removed support for ESP32 Core versions before v3.3.8

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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](https://tasmota.github.io/docs/Upgrading#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 ---

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

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

7. Migrate to **Tasmota 9.1** (http://ota.tasmota.com/tasmota/release-9.1.0/tasmota.bin.gz)
8. 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](https://tasmota.github.io/install/).

##### 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

_[Truncated at 4000 characters — full notes: https://github.com/arendst/Tasmota/releases/tag/v15.6.0]_