Applies to: Revit All Versions, all Disciplines
Question: Can I save my Revit file backwards to a previous version?
Answer: No, Revit does not have the ability (and has never had the ability) to save a version backwards to a previous version.
Before upgrading any project to a new version of Revit, be sure to:
You can run concurrent versions of Revit on the same machine. ie Revit 2011 and 2012 can run on the same machine.