Home Assistant Core 2025.12.0 → 2026.1.0

Coolmaster

The climate entities provided by the Coolmaster integration now use medium for the medium fan mode; before this change, it was med. If your automations are using med when setting or querying the fan speed, you'll have to change it to medium.

(@tan-lawrence - #157253) (coolmaster docs)

Tailscale

The "Supports hairpinning" binary sensor has been removed from the Tailscale integration. According to the official Tailscale API documentation, this information is no longer tracked and will always return null.

(@CraigCallender - #156728) (tailscale docs)

UniFi Protect

Select entity state values have been changed from their original mixed-case format to snake_case format with proper translations. This improves consistency and enables proper localization support.

Affected select entities include: chime type, recording mode, infrared mode, status light mode, HDR mode, doorbell text, LCD message, and others.

Example changes:

• Chime type: Mechanical → mechanical, Digital → digital
• Recording mode: Always → always, Detections → detections, Never → never
• Infrared mode: Auto → auto, On → on, AutoNoLEDsOn → auto_no_leds_on
• Status light mode: On → on, Off → off, OnWhenDark → on_when_dark
• HDR mode: Auto → auto, On → on, Off → off

If you have automations, scripts, or templates that check or set the state of UniFi Protect select entities, you need to update them to use the new snake_case values. The UI will continue to display properly translated, human-readable text.

(@RaHehl - #159284) (unifiprotect docs)

Telegram bot

Allowing extra/unused parameters has been removed from the action for Telegram bot. Only users who have used undefined parameters for Telegram bot actions are affected. If you are affected, remove such parameters from your automations and scripts. Supported parameters can be found in the Telegram bot notification actions documentation.

(@hanwg - #158886) (telegram_bot docs)

VeSync

The advancedSleep fan mode has been changed to advanced_sleep. If you have automations or scripts using this fan mode, please update them accordingly.

(@cdnninja - #158956) (vesync docs)