Hi guys,
Don't if you have access but I saw Thomas Jung presenting this topic explaning very well what exist before, on SP6 and what is predicted to future:
https://open.sap.com/videos/77?module_item_id=174
In short: all history changes are stored on server but currently studio doesn't provide a view of it. It's planned for future releases to "teach" Studio to branch all the changes showing the version.
Regards, Fernando Da Rós
