So far I have not had any problems by opening it up in a text editor and changing the r number. Works fine on my side, but I did not do many changes to the file when I was working with it in r98.
How often do new beta's get finalized?
Wicstar, did you open it up in notepad (PC)?
Should be towards the top(8th line down on my side), look something like: <saved-with-version>9800</saved-with-version>
Just change that 8 to a 5 ;)