It contains new features including Stereoscopic 3D Editing, Comprehensive Closed Captioning, GPU-Accelerated AVC. The 10.0 version was released in October 2010 and is the latest version of the software.
I have been running these same programs on 64 bit for three yrs without trouble. This quick Sony Vegas users guide presents an overview of how to create a simple teleportation effect in Sony Vegas Pro 9. The latest 9.0 version was released in May 2010 called 'Vegas Pro 9.0e' which includes a new white balance video effect. FWIW Sony along with a pile of other sofware manufactures will often state that their product is not supported running 64 bit systems. Vegas 8 already allowed for project nesting, if that's what you're talking about. Maybe the stabilizer in Vegas pro is different but the others dont impress me at all.