Incredible, Apple released an OS full of bugs.
I downgraded to 8.4.1 because 50% of the apps on the store will not work with it.
AGK is working but you need to shut down the bitcode in compiler.
Also you can't use some performSelectorInBackground ... and this is the most crash cause!!!
Some animations make app crash for constraints...
iAD will not work on iOS 9...
and much, much other.
I think Apple will release a 9.0.1 in less than 1 day, or this will be really a BAD APPLE!!!
TGC, if you read this post, you need to know there will be much new changes on iOS 9...
so please come back to the forum!!!