This morning (2026-10-11 07:10:00), I updated to Core 2026.10.1. After the update a few repairs showed up. One was for a Script that has been running for 3 years. Somehow an "Attribute" was inserted in the script, which was not there before the update. I fixed it by deleting the "Attribute". Then there are three devices which has been in my HA for more than 3 years and it is complaining on "... has area but no name on its own".

Edit: I think I know what these are: they are ghost devices which are now resurrected by the Update. The thing is there is no "delete" option when I go to their settings!