VersionInsight in RAD Studio XE8 has been extended further, with deeper Git integration and also support for Mercurial (in addition to Git and Subversion). In this article I want to quickly highlight the new Git features, as that’s what I mostly use, but you can see more about the Mercurial support here.
As an aside, if you’re not familiar with VersionInsight, I did some videos quite awhile ago that showed how to use it against Subversion, and then another video which shows it working against Git.