Under the “Upgrade from openHAB 2” section in Guide: Installing and testing OH3 snapshots using APT and YUM, it seems to suggest that the installer is able to detect the system is an existing OH2 system and migrate the files automatically. Unless I’m understanding it wrong?
My query was more about openhabian being broken forever in the future from the manual update as I would like to reuse openhabian-config whenever it has been upgraded to support OH3.