Are there any differences between 6.1 and 6.5 when it comes to policies? I can't seem to find an updated list, just the classic http://technet.microsoft.com/en-us/library/dd261953.aspx and it says nothing about 6.5 changes, additions or any new ADM file.
There are no new policies in WM 6.5 to my knowledge. The main changes from 6.1 to 6.5 is the eyecandy, in addition to some tweaking (making it a bit more snappy than before), and some Exchange-related updates.
So with regards to SCMDM there's not much new really.