Got red popup message with the error:
Error: control/version.json | New app version check is disabled by user | 500
Screenshot:

Docker?
Docker?
Yes, sorry, missed that info.
Yep, same issue here on the Hass.io Add-on

I'm holding off release of the add-on for this, it would cause a flood of questions for me.
Yeah, we'll publish a hotfix next week for this. We'll see how it goes, maybe there will be more things to fix after the weekend.
Don't worry, I'm focussing on the API changes first (Home Assistant depends on the API), trying to get that processed before the beta cutoff upcoming Wednesday.
Same problem here using in Docker on a Synology NAS. Let me know how I can help.
Auto-update is disabled on Docker, so we should probably show the appropriate message and the link to https://github.com/AdguardTeam/AdGuardHome/wiki/Docker#update
@szolin or simply suppress the message
Auto-update is disabled on Docker, so we should probably show the appropriate message and the link to https://github.com/AdguardTeam/AdGuardHome/wiki/Docker#update
Yes, disable for Docker containers but still let users know that a new version is available.