Sometimes you delete a lesson but you actually want to keep that version. And sometimes you have people make changes but you need those changes undone. So now, every 30 minutes Mindsmith will check to see if a lesson has been edited. Mindsmith will then create a backup version of that lesson. You will be able to see the versions of your lesson and restore these versions. You can think of this as a first step into similar functionality to Google Docs where you can see/restore the history of a document.