2D: Fixed an issue whereby Sprite packer caused Out of memory error.2D: Fixed an issue whereby blue line briefly flickers when moving mouse in Sprite Editor 'Edit Outline' mode in OSX Metal.2D: Fixed an issue where SpriteUtility.GetSpriteUvs returned invalid Uvs.

2D: Changed warning message 'MaterialPropertyBlock is used to modify these values' to info message.

2D: Added Sprite changes in play mode when using texture packing and high quality compression.

Backfaces bounce light using the same emission and albedo as frontfaces. Backface rendering is not controlled by this setting nor will backfaces be represented in the lightmaps. Backfaces do not count as invalid when seen from other objects. When enabled, both sides of the geometry get accounted for when calculating Global Illumination. Added a new material setting that causes lighting to interact with backfaces. GI: Support for double sided materials in Progressive Lightmapper.Light Probes are not necessary anymore when baking LODs using Progressive Lightmapper. GI: Added support for LOD baking in Progressive Lightmapper.Video: Skip-ahead functionality improvements.Video: Optimized video decoding directly into RenderTexture if it is the same size as the video stream.UI: CanvasRenderer::OnTransformChanged will not be called when object is inactive.Physics 2D:Update BoxCollider2D Sprite Tiling generation to produce cleaner shape.Physics 2D: SpriteRenderer's Sprite Tiling behavior changed when width/height is negative value.This gives coarse grain control over timeouts for webrequests.

Networking: Added a timeout property to UnityWebRequest.IOS: Added support for the 5th generation iPad.Improved Outline Editor module performance in Sprite Editor Window.Graphics: Added R8 and RG16 Texture formats, and RGBAUShort and RG16 Render Texture formats.Animation: Optimized evaluation of complex blend trees, and blend trees with empty child nodes.

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