so, the one thing that i wish i could determine with certainty is: exactly what feature set does v3 offer that v2 fails to offer? from what i can tell, it's just a UI (and, ok, a backend) redesign. but it looks like it provides the same (er, perhaps less?) functionality than previous versions.

also, this nonsense where you're requiring 10.9? that feels like a horrible mistake. i've used AH for around 8 or 9 years now.. but the machine that i run it on is 10.7, and i'm quite satisfied with that arrangement. the wish to get all existing users bumped up to the latest version falls a little flat given the OS requirements. actually kinda bummed about that.