2.4.2 here, no issues. Skipped 2.4.1 entirely.
I'm using the s/pdif and i have to say the difference between 2.4.2 and 2.4.0 was minimal if any. Maybe it's only on main outs? Maybe i'm just not playing my 'usual' profiles enough nowadays.
Anyway, about 37 seconds to boot! Shaving 15 seconds is impressive from a technical standpoint, and more importantly, it's that much shorter that turning the Profiler on is now a casual action.
I might be imagining things, but it seems that switching rigs in browse mode is faster as well. Weird.