@c2f9cd0a I think the ability to rollback is _very_ difficult to overrate. Even if you never actually do it, just the ability takes away much of the fear of updating. This leads to updating more often. And that has a ton of other implications, e.g. that updates are in smaller, that you diverge less from current main,... . This has more transitive implications such as that updates that aren't as easy to rollback (eg involving state) become safer and easier to manage because they are smaller.