Not the only thing missing in the online documentation! IOS 6 has three deprecated AVPlayer methods:
airPlayVideoActive allowsAirPlayVideo usesAirPlayVideoWhileAirPlayScreenIsActive
It seems they have been replaced by:
externalPlaybackActive allowsExternalPlayback usesExternalPlaybackWhileExternalScreenIsActive
Information derived from this set of differences . (Hi, Apple? You could do it better!)
source share