It depends on your type of software. I use it all the time for mathematical software. I have an input I keep around, which checks "is the program, very basical

It depends on your type of software. I use it all the time for mathematical software. I have an input I keep around, which checks "is the program, very basically, doing what it should?", which is compatible with all previous versions. I use that when to 'git bisect skip' commits which don't build, or if when built aren't functioning at all. It's not 100% perfect, but works well for me.