How are you guys tracking changes? Do you use git?
Changes to what? The code for proseMirror is @ https://github.com/ProseMirror/prosemirror/
See http://prosemirror.net/demo_track.html for a demo of how you can keep track of changes within the editor. I haven’t read the code for that demo yet but I assume it uses the prosemirror history and transform APIs.
I think ahmetcetin is talking about the track changes demo. That does not use git, but ProseMirror’s own representation of document changes.