This may be a tech support biased request, but I think it would be highly useful in general, especially for people who receive files from other users. There should be an easy way to see a file's history. For example, a History selection in the File menu, or a History tab in the Summary Information. Here's what Composer provides for file History:

1. How many times the file has been saved

2. The version used to create the file

3. The version of each save

4. The last version it was saved in

5. The username of each save

6. The time and date of each save

7. A button to Clean the history which deletes all but the first and last saves

Some of us in TS still use Fielder's "TS Toolbox", which gives us some of this information, albeit somewhat cryptically: