We can now replay the sequence of edits between two file versions. Just open File Edit History dialog and select some version in the list. If there are any edits between the selected version and subsequent one, you'll see "Play edits" button in the top-right corner of the dialog. You can replay edits one by one and see edits made by you or your collaborators. Inserts are highlighted with green, deletes are marked with red.
See how it works in this video: