The platform detection module now identifies the version control system in use. It checks for .git (git), .hg (Mercurial), .svn (SVN), .p4config/P4PORT (Perforce), and $tf/.tfvc (TFS). This information is included in environment telemetry.
Evidence
VCS detection map (search for "mercurial", "perforce")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
