What year passenger/pillion seats fit 2014?

I’ve decided to go the route of mounting a top box on the pillion seat for now until I get a rear rack that works with the factory luggage. As expensive as the factory bags are, I don’t want anything happening to them as I split lanes in heavy traffic.

I know they changed the rear subframe on the 2014 & newer models. Did they change the seat design from previous years? So far I haven’t been able to find a 2014 or newer used seat anywhere and it isn’t worth it to buy a new one from the dealer.