### Improvements

*   Core: Added support for loading serialized files stored with versions >= 5.5.0a4
*   DX11: Improved texture upload performance for compressed, floating point ant RGBA32 formats ([812350](http://issuetracker.unity3d.com/issues/getnativetextureptr-and-creating-texture2d-got-slower-in-5-dot-3)).
*   Networking: Projects using UnityWebRequest from UnityEngine.Experimental.Networking should now be auto-upgraded to use its new location in UnityEngine.Networking.
*   VR: Mac version of the editor can now add OpenVR as a VR platform when targeting the Windows player.
*   VR: Stereo View and Projection Matrices can be set individually through scripting API.
*   VR: Updated Oculus to Version 1.7.
*   VR: Updated OpenVR DLL to version 1.0.2.

### Fixes

*   ([820608](http://issuetracker.unity3d.com/issues/navmesh-objects-without-double-sided-faces-are-still-wakable-if-raised-above-ground)) - AI: Fixed an issue where 'Not Walkable' objects close to the ground would not create a hole in the navmesh when baked.
*   ([822015](http://issuetracker.unity3d.com/issues/navmeshagent-agent-gets-teleported-to-the-destination)) - AI: Fixed an issue where NavMeshAgent remaining distance property would be wrong right after setting the agent destination to the same polygon.
*   ([822362](http://issuetracker.unity3d.com/issues/navmeshobstacle-carving-causes-navmeshagent-to-teleport)) - AI: Fixed an issue where NavMeshAgent would sometimes teleport right after NavMeshObstacle carving.
*   ([811880](http://issuetracker.unity3d.com/issues/android-calling-handheld-dot-playfullscreenmovie-crashes-on-some-android-devices)) - Android: Added fix for crash on returning from Handheld.PlayFullScreenMovie.
*   ([803481](http://issuetracker.unity3d.com/issues/error-when-instantiating-a-prefab-from-an-asset-bundle-that-contains-scripts-references-and-unloadunusedasset-is-called), [807275](http://issuetracker.unity3d.com/issues/dependencies-of-loading-asset-are-not-unloaded-if-unloadunusedassets-is-called-after-loadassetasync-has-finished-loading-asset)) - AssetBundles: Fixed an issue where calling Resources.UnloadUnusedAssets while loading an AssetBundle with AssetBundleRequest.LoadAssetAsync caused an error & stopped the asset from being loaded properly.
*   ([814152](http://issuetracker.unity3d.com/issues/camera-ignores-rect-if-settargetbuffers-is-used)) - Camera: Fixed an issue where rect was ignored when using SetTargetBuffers.
*   ([791721](http://issuetracker.unity3d.com/issues/wsa-il2cpp-socket-dot-asyncconnect-doesnt-work)) - IL2CPP/Windows Store: Allow non-blocking sockets to work properly on 64-bit builds.
*   (819647, [821614](http://issuetracker.unity3d.com/issues/assigning-null-to-nullable-type-assigns-default-value-on-ios)) - IL2CPP: Correct some calls to HasValue on nullable types, which could return true when the nullable does not have a value.
*   ([818966](http://issuetracker.unity3d.com/issues/il2cpp-android-build-fails-to-compile-with-il2cpp)) - IL2CPP: Generate proper C++ code for some cases involving array parameters passed by reference.
*   ([815185](http://issuetracker.unity3d.com/issues/unitywebrequest-downloadedbytes-property-is-always-zero)) - UnityWebRequest: Report downloaded bytes for asset bundle and properly report 1.0 progress when finished.
*   (none) - VR: Fixed crash when exiting VR in certain cases where the HMD was detected as not connected on the first frame.
*   (none) - VR: Fixed viewport scale issues with OpenVR.
*   ([804577](http://issuetracker.unity3d.com/issues/wsa-in-tablet-mode-application-starts-a-bit-shifted-deployed-in-portrait-mode)) - Windows Store: Generate code in exported the solution to enter full screen if "Default is full screen" is set in player settings.
*   ([804583](http://issuetracker.unity3d.com/issues/wsa-orientation-issues-on-tablets)) - Windows Store: Generate code in exported the solution to setup initial orientation.
*   ([817285](http://issuetracker.unity3d.com/issues/uwp-il2cpp-no-automatic-fullscreen-entering-on-il2cpp-backend-for-uwp)) - Windows Store: Suppress system overlays by default in il2cpp solutions (make consistent with .NET).

Revision: 38a9e1a3db04