DX12: Fixed constant buffer memory being overwritten in certain circumstances.

Build: Fixed a crash in BuildReporting::BuildReport::BeginBuildStep caused when BuildAssetBundles was being called from an OnPreprocessBuild callback.

Build: Fixed exceptions in OnPreProcessBuild not halting the build process correctly.

Audio: Quality of atrac9 clips can now be adjusted properly in the audio importer.

APIUpdater: Fixed unnecessary reference to mscorlib 4.0 being added to assemblies in some cases.

Animation: Fixed assert when loading AnimationClip asynchronously in AssetBundles.

Animation: Fixed an irrelevant assert in Animation Component.Android: Fixed header availability in UnityWebRequest when response uses chunked transfer.Android: Fixed symbols.zip not including symbols file.Android: Fixed android video player playback lagging after activating input field.Android: Fixed android video player stuttering and dropping frames.Android: Fixed permissions popup crash.Android: Fixed build with target sdk 21-23.Android: Fixed realtime HDR reflection probes being black on older Android devices.Android: Fixed player crash when profiler with GPU profiling was enabled and graphics API was not OpenGL ES 3.AI: Fixed unwanted gap in the NavMesh produced by a concave edge crossing a tile boundary.tvOS: Implement support for 4K AppleTV icons and splashscreens.Multiplayer: Increased send bandwidth for web sockets.iOS: Add support for iPhone X launch images.iOS: Add player setting to specify which device edges defer system gestures to the second swipe.iOS: Add player setting to specify whether the home button should be hidden on iPhone X.iOS: Add identification enums for iPhone 8, 8+ and X.Global Illumination: Added ATrous filter for the Progressive Lightmapper.

Apple TV: Added support for attitude data coming from new AppleTV remote.Android: Improve error messages from android sdk tools.

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