What are you referring to as updated latches????
Far as I know they are all the same except some are one piece and some are laminated. Still takes a 1 tooth and 2 tooth to make a set. Try Florin Tractor for a source.
I took the pinion sleeve latches apart and put in the new spring that I received from Florin. And my replacement latches are both 2 tooth except one is a female and the other a male. So unless someone advises me otherwise, I am going with what I have.