data Teslamate unavailable in HA after update to 2026.4

[wallb35]

My problem

After the HA 2026.4 update, the mqtt data of teslamate in HA are unavailable while present in mosquitto.
I rebooted HA, restarted the mqtt integration and my Teslamate docker, nothing does.
everything was working fine before 2026.4 update.
I hesitate to delete the entry in mqtt on HA...
I don't see what's wrong or how to troubleshoot. Can someone help me?

My configuration

HA 2026.4 on HAOS
Teslamate 3.0.0 in docker
mosquitto in a docker

[wallb35]

I saw this in the release note of HA 2026.4, can it be the reason and if yes how to fix it ?

Support for the object_id option has been removed after 6 months of deprecation. This option was used to suggest the entity ID for an MQTT entity and has been replaced by the default_entity_id configuration option.

If you used object_id in your MQTT YAML configuration, you were previously asked via a repair flow to update your configuration. If object_id is still part of a discovery message, the option will simply be ignored and will not break discovery.

[wallb35]

ok solution found by replacing my really old mqtt_sensors.yaml by the last one available in the teslamate documentation :
https://docs.teslamate.org/docs/integrations/home_assistant/