Core not updating due to supervisor has incompatible update

Configuration
1

I have
Supervisor: 2025.11.5
Core: 2025.7.3

Unfortunately, I cannot update the Core to the latest version: “Error: ‘HomeAssistantCore.update’ blocked from execution, supervisor needs to be updated first” - but the supervisor also cannot be updated (because it’s not HAss OS). Actually, I wanted to update both to the maximum supported version, then back up, and then install HAss OS, because the Supervisor is deprecated…

How do I get my Core to version 11 now?

2

Open one of the ssh add-ons, then starting with the version 1 newer than you are currently on…


ha os update --version 12.0
ha os update --version 13.0
ha os update --version 14.0
ha os update --version 15.0
Keep going until you get to the current version, then include major and minor in the last one

(like... ha os update --version 16.3)

Or whatever you need. Go in steps because newer versions often rerquire the prior one to update sucessfully.

and

Otherwise, if this isn’t working in the UI, try the CLI version. Both are shown here.

3

I was able to install HomeAssistant OS - old backup did work perfectly from cloud. Installation process was really smooth (just replaced the OS on NVMe directly). Kudos to the Dev team!