What happens if you’re working on a document and you realize you screwed it up? Maybe you deleted a few paragraphs without realizing. Or you’ve just been writing a bunch of nonsense for the past half-hour and wish you could go back to where you were before? On the Mac, you can easily do just that. It’s called versions, and it’s automatic.
Using versions, you can easily browse and restore previous versions of any document. Some apps have this built in, so you can do it right there inside the app itself. But the Finder also supports versions, so you can revert to a previous state of almost anything.