See [migration path](https://tasmota.github.io/docs/Upgrading#migration-path) for instructions how to migrate to a major version. Pay attention to the following version breaks due to dynamic settings updates:
**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.
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**.
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.
In addition to TLS using fingerprints now also user supplied CA certs, AWS IoT and Azure IoT is supported. Read [full documentation](https://tasmota.github.io/docs/AWS-IoT)
For initial configuration this release supports Webserver based **WifiManager** or **Serial** based command interface only. Support for **WPS** and **SmartConfig** has been removed.
- **tasmota.bin** = The Tasmota version with most drivers for 1M+ flash. **RECOMMENDED RELEASE BINARY**
- **tasmota-AF.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.
- **tasmota32solo1.bin** = The Tasmota version with most drivers including additional sensors and KNX for single core ESP32 and 4M+ flash.
- **tasmota32-AF.bin** to **tasmota32-VN.bin** = The Tasmota version in different languages 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-display.bin** = The Display version without Energy Monitoring but adds display support for 4M+ flash.