Xp transmission

Does anybody know if a 2011 or newer tranny will fit in a 2010 machine? I know they are different part numbers but I am thinking it is due to the internals being different. I think the 10s have something like the 09s like a spike load damper. I know they did away with all of that in 11. Also wondering if my 10 clutches would f it the newer tranny?

Thanks