The biggest hiccup I'd seen in the first release was that nearly every session crashed after less than 30 minutes, and I'm guessing it was due to changes being made (aircraft, location, time, weather). But try as I might, I can't get the new release to crash. Great job!
T-38 gauges don't lock up anymore on the rare occasion when I try to fly vertically.
Sim-> rewind function is a good addition. However, if I stall out an engine and then rewind, the engine is still stalled. I'll report that separately as a bug.
Stall mechanics feel more realistic now, though I haven't taken much time to test them out.