Failed plugin update? Mistakenly deleted post? Just undo it. Also, painless staging for WordPress (finally!), great backup & team workflows, all powered by Git.
Working on this next-gen thing for you, you can get Early Access and support us: http://versionpress.net/
This seems to be something you could use for Version Control, BUT it seems like it's "early access program": http://docs.versionpress.net/en/getting-started/about-eap