As far as I know only two things have changed in 1.5 for jets, but those two changes have made a ton of difference:
j-10 flies like a brick
The jet's MG now actually hits other jets incredibly well
I don't really give a shit about the j-10 but change #2 seems to have completely overhauled dogfighting. Just now I was taking down jets much more easily and from positions I wouldn't normally be able to. I get the feeling that this change might have done a lot to balance out other jets too (MiG vs. F35, for instance)
j-10 flies like a brick
The jet's MG now actually hits other jets incredibly well
I don't really give a shit about the j-10 but change #2 seems to have completely overhauled dogfighting. Just now I was taking down jets much more easily and from positions I wouldn't normally be able to. I get the feeling that this change might have done a lot to balance out other jets too (MiG vs. F35, for instance)