A little feature I think might be nice is when you are on the screen where you can select scripts to export it might be nice to see the modified date so you can easily export only the scripts you have just modified.
You already capture the date when the script was modified and having it in the export screen would be quite nice.
Probably we can add such option in version 10.
On the other hand, there is "History" page: if you add short description for new version of the script, you may check history in "Export" window