File menu no longer shows option to create snapshot. But project window still refers to snapshots.
How do I create a snapshot in Xcode 7?
Perhaps GIT is it, now...
I just noticed this as well, it's strange because there is an option under Preferences > Locations to set the directory for snapshots, where I found my snapshots from Xcode 6. There doesn't seem to be anything in the release notes about it and no sign of it anywhere else in preferences. Very strange...
For posterity - in the menu at the top select "SourceControl" then "Commit...", add a comment and "Commit X Files" then after you make additional changes and want to see the changes select "SourceControl" and "Commit" and select the file on the left.
All explained nicely in :
www (dot) raywenderlich (dot) com /51351/how-to-use-git-source-control-with-xcode-in-ios-7