Two aircraft with - so far - a single version have been added, the COMAC C919 and Mil V-12. This first page is likely to be extended in the future, with the C919-100 being announced recently, but the V-12 will remain the prototype of the world's largest helicopter ever.
I also added the Piper M700 Fury to the PA-46 page. Unfortunately we don't know any external differrences compared to the previous versions yet, in particular the M600.