I use etckeeper for this, automatic daily commits if something changes, also does pre and post apt commits. I use that for potential personal foot shots. Upgra

I use etckeeper for this, automatic daily commits if something changes, also does pre and post apt commits. I use that for potential personal foot shots. Upgrades are almost always straight forward, just read the notes. I have been upgrading in place 6-12 systems since at least 2002.