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To upgrade Nextcloud 34 to 35 in Docker, back up the database and the volume, switch the image to nextcloud:35 and let the container start run occ upgrade. You can only move one major version at a time. What breaks are apps with no release for 35, and going back to 34 means restoring the backup.
MariaDB 13.0.2, stable since 15 September 2026, is a rolling release with community support until Q4 2026, not an LTS. It adds redo log archiving, UPDATE with RETURNING and implicit query block names for hints. I upgraded in Docker from 12.3 and 11.8: the server starts, but mariadb-upgrade misses broken stored routines.
restic is the encrypted, deduplicated, incremental backup tool I run in production on several servers. A practical guide to installing it on Debian, setting up an S3-compatible repository, automating daily backups with systemd, and verifying that restore actually works before you need it.
