(Off-topic) Recommend emacs library for git?

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

The emacs VC mode claims to support git, but vc-git.el isn't included in
any emacs install I've checked.

Google search isn't turning up vc-git more recent than 2006, which seems a
bit of a stretch.  I've seen reference to magit but with the caveat that it
is best "if you don't need to use any other version control system" (which
I do need to do).

I'd like to be able to continue to use e.g C-x v g for annotate, etc., if
feasible.  Suggestions?