So it seems like this has been an issue for a while but the first time it has hit me. I recently upgraded My NextCloud docker app and went from version 25 to 27. For some reason this is a giant no no and it throws the error “Can't start Nextcloud because the version of the data (25.0.5.1) is more than one major version behind the docker image version (27.0.1.2) and upgrading more than one major version is not supported.”
Any way to fix this?