At the keynote presentation for Google I/O 2014, Google announced a new feature called Suggested Edits for Google Docs. There was several other updates that came to Google Drive, but this one may have been the most exciting for Docs users.
The lack of redline editing in Docs has been a major issue for many users, especially those attempting the switch from Microsoft. Also known as tracked changes, redline editing is one of the best ways to collaborate while also making sure that all changes are accounted for. With Suggested Edits, users have access to a very similar feature, making it even easier to get off of Word.