Zigbee2MQTT down after add-on update

I recently updated Zigbee2MQTT from version 1.41.0-1to2.4.0-1. While the add-on would start, I wasn’t able to access the Zigbee2MQTT Web UI, it would launch briefly but then stop on its own as soon as I tried to open the interface.

I checked the SLZB-06 Z2M/ZHA status and saw that it wasn’t connecting.

I ended up rolling back to 1.41.0-1, and everything returned to normal.

For context, I’m currently running Core 2024.10.4 and OS 13.2 on a dedicated mini HP Elitedesk, which I know is a bit behind. I’m not sure if this was just a one-off issue, but given that everything else is stable, I’m hesitant to update Core or OS at this stage. A few automations are critical for the family (especially the kids), and I don’t have time right now to troubleshoot if something breaks.

I did manage to update Mosquitto broker from 6.4.1 to 6.5.1 and SLZB-06 firmware from 2.3.6 to 2.7.1.

Thinking of just leaving things as-is for now. Open to thoughts or suggestions.

There were breaking changes in 2.0, including the fact that with a CC2652 adapter (like the SLZB-06) you now have to add

adapter: zstack

to the configuration, where before it was assumed zstack if you did not have an adapter: key.

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