As MT advertises itself to be more and more of a CMS, I was wondering if MT5 offers a way to edit an entry or page and save it as a draft without pulling down the current version. For instance, an editor might go in and make minor changes to a page but the edits need to be reviewed before it's posted. In MT4.X saving any edits will post it and update the live site. Will this change in MT5?
Reported on Movable Type 4.25

Hi Archie,
There was a plan to implement "Snapshot" feature that saves a draft into revision history without changing a published entry. But it requires more UI refinement and postponed to the future 5.x release. I heard this request frequently, please be patient for a while !