AVFoundation watchOS 8.0 Beta 3 to Beta 4 API Differences

AVAssetResourceLoader.h

Modified -[AVAssetResourceLoadingRequest streamingContentKeyRequestDataForApp:contentIdentifier:options:error:]

	Availability	Replacement
From	Available	none
To	Deprecated	-[AVContentKeyRequest makeStreamingContentKeyRequestDataForApp:contentIdentifier:options:completionHandler:]

AVAssetVariant.h

Modified AVAssetVariant

	Protocols
From	NSSecureCoding
To	none

AVPlayerItem.h

Added -[AVPlayerItem copyWithZone:]

Added -[AVPlayerItem copy]