Autorevision

Did you ever got into situation where you have multiple content editors and thousands of content pages and very pages being edited and pieces of content being accidentally removed, because editor forgot to create revision, or even worse, they don't even know they can.

This module enables auto revisioning functionality, by allowing for site administrator to preselect which content types will be revisioned by default every time content editor make changes on the node.

If you concern that Autorevision can create a lot of revisions with time, there is another module called Node Revision Delete that can help remove old revisions and clean-up database.