Rotax Max SS Barrel Year

I have found a “Junior” Rotax Engine and i am not sure about the barrel year.
I’m thinking of buying but im not sure.
Anything helps

Don’t think the Junior has the power valve, thus less horsepower than Senior. If you’re OK with that, then that’s fine. Don’t even think about switching to Senior from a Junior engine, it’s cost prohibitive. The new Senior engine (in the US) is like $2600 right now, which is a very good deal.