Deprication of MQTT version 3.x not mentioned in the main documentation

[eijlers]

Feedback

In release 2026.06.0b I get a message that MQTT version 3.1 is not supported starting from 2027.01. This is not mentioned in the main release notes.
https://rc.home-assistant.io/blog/2026/05/27/release-20266/#202654---may-22

In the details it is mentioned:
Deprecate MQTT protocol versions 3.x and migrate to version 5 (@jbouwh - #169759) ([mqtt docs]) (deprecation)

URL

https://rc.home-assistant.io/blog/2026/05/27/release-20266/#202654---may-22

Version

2026.06.0b0

Additional information

No response