Is there a proper, definitive list of whats new/changed in Metal in iOS for iOS9? At the WWDC "Whats new in Metal 1" talk they briefly put up a slide with a ton of features listed. e.g. Layer Select, Counting Occlusion Queires, Depth Clipping Support, Texture Barriers etc etc.
Where is any of this documented? Best I found was the "Whats new in IOS9" document
which is unhelpfully vague.