07:03
SO, typically packages don't come with a config file
they come with an example config file you copy, and edit
so lets say there's a major change and things break, a well designed update script shouldn't overwrite it
What I tend to do is before doing a breaking change, or once I have something working, save a copy, say foo.config.failsafe so if things break, I can put that back
same thing works in most cases