Git - If we want to take a snapshot - should we Branch our should we Commit?

Question

Let's say I'm working on this thing, and I want to preserve this state, so that, if something goes wrong, I can revert to it.

According to this, it's not clear to me:

What should we do when on this situation:

commit or create branch ?

Answer 1

I think Git Tag is what you are looking for.

http://git-scm.com/book/en/v2/Git-Basics-Tagging