I guess crashing isn't a feature. I'm not trying to be a troll, but let's be honest -- There has never been a version of Flash that hasn't piece a complete piece of garbage when it comes to stability and performance. If Adobe "got it" this list of "What's new" would include words like "removed" and "deprecated" and "eliminated." Those words don't appear once. They've just thrown more stuff into the kitchen sink that…
If adobe "got it", Flash would compile into cross-platform HTML5 code. The world doesn't need another inner platform.
http://labs.adobe.com/technologies/wallaby/
It's woefully limited right now, but it's obvious Adobe's exploring that avenue.