Other SCM options

Git and SVN are not the only available options, by any means. The next most popular options are the following:

• Mercurial: A free, open source SCM, written in Python, that uses a distributed structure like Git, but doesn't require the change staging operation that Git does. Mercurial has been adopted for internal use by Google and Facebook.

• Perforce Helix Core: A proprietary, distributed SCM that is at least somewhat compatible with Git commands, targeted for Enterprise clients and use.