No, it's up to the project. You can use Team Foundation Server on Codeplex, but not everyone has that, and although it's "supposed" to work with a subversion client, the support there sucks.
Re:Windows Store and the GPL
by nigelsampson on Thursday November 22, 2012 @02:30PM
(#4819757)
Codeplex supports Git, Mercurial, Subversion and TFS. Up the project owner, heck some MS projects are hosted on GitHub.
Is git now MSs recommended way of doing source control rather than whatever product they offer?