I haven't seen any major issues regarding this. BUT I don't have any fighters or AI ships on my side usually, and that seems to be where people have the issues/
I'm not quite at the point of the game where I need my own fleets. So as long as the enemy AI is challenging, I'm happy. :)
Think I might update to the beta branch then. All the new stuff and fixes are exciting!
Edit: Migrated to beta branch. Glad I did. I love the prograde and retrograde vectors. Flight controls feel good. Flight assistance toggle is awesome. Really happy with the new flight model!