All 3 flavours enable check-in/check-out/undo check-out/change history/change descriptions/quality bar enforcements etc. Using a version control system can dramatically improve the quality, predictability and productivity of your MorphX projects.
This channel 9 screencast gives a preview of the version control system integration options in the next release of MorphX - the IDE of Dynamics AX. It shows a side-by-side comparison of the integration options with Team Foundation Server, Visual Source Safe, and MorphX VCS. The last half of the screencast gives a demonstration of MorphX VCS.
Finally I want to wish everyone a "God Jul" (as you say this time of year where I live.)