Writing is a process. You are never really done. You are just at your current version of whatever you are working on.
This is also true for students and the writing they do in school. At least it should be true. Students should not just write their essay, paper, report, or story once, then turn it in and be finished with it. A critical part of writing is getting feedback, making changes, adding new content, and trimming out what is not needed. And then doing it again. And again.
Thankfully Google Docs has always made it easy for students to write, and then for teachers and peers to leave feedback (text, voice, video, and handwritten), and then for students to make changes to their work.
Now though, it is even easier for teachers and students to keep track of those big mile markers when a paper goes from rough draft to revised draft to final copy. Recently Google gave Revision History a face lift, renaming it to Version History and adding the new ability to name specific versions.
See below how this new process works, and how you and your students can use this to improve the clarity of the editing process.