I recently tested landscape auto-orientation in my app (for iOS 9 beta) on iPad, iPad mini, and iPhone 6 plus. Auto-orientation works on every device except the iPhone 6 plus. Nothing happens when the device is turned upside down.
Flash CC
Windows 7 64-bit
Air 18.0.0.144
iOS 9 beta
Waiting for a fix, if there is one already.
Air for iOS setting tab screen shot:
