If a user is experience lighting coruption they be may required to reimport due to a fix to which correctly fixes a Uv unwrapping issue (1330830).
GIKnown issueCaution
[URP] Reflection Probe is black after baking when using the Blit Renderer Feature
Universal RPKnown issueCautionUUM-2631open 2020.3.47f1
Mac computer running minimum macOS 10.13+ and Xcode 9.0 or higher.
iOSmacOS
Android SDK and Java Development Kit (JDK); IL2CPP scripting backend requires Android NDK.
Android
Windows 10 (64-bit), Visual Studio 2015 with C++ Tools component or later and Windows 10 SDK
Universal Windows PlatformWindows
Desktop:
System Requirements
Windows 7 SP1+, macOS 10.13+, Ubuntu 18.04+
OSWindowsmacOS
Graphics card with DX10 (shader model 4.0) capabilities.
System Requirements
SSE2 instruction set support.
CPU
iOS player requires iOS 11.0 or higher.
System RequirementsiOS
OS 4.4 or later; ARMv7 CPU with NEON support; OpenGL ES 2.0 or later.
Android
Any recent desktop version of Firefox, Chrome, Edge or Safari.
WebGL
Windows 10 and a graphics card with DX10 (shader model 4.0) capabilities
Universal Windows PlatformWindows
Exported Android Gradle projects require Android Studio 3.4 and later to build
System RequirementsAndroid
Added Web3 as a Filter Category in My Assets.
Package ManagerFeature
Improved performance of Transform.Find() API especially when working with large numbers of children.
EditorImprovement
Fixed BuildPipeline issue for Android platform which asks for a name and directory even when it has the last saved location details, when triggered using Ctrl+B (Windows) or Cmd+B (macOS) keyboard shortcut.
Build SystemFixAndroidWindowsmacOSUUM-19897fixed 2021.3.20f1
Fixed an issue that the asset import workers will not inherit open handles from the main editor causing trouble rebinding network sockets.
Fixed an issue so that the macOS Player no longer contains an empty area gap on each vertical side of the screen when rendering fullscreen on Macs with a notch.
Fixed an issue to block the ability to apply components marked with HideFlags.DontSaveInEditor to Prefab.
Fixed Camera.stereoEnabled when SRP is used and fixed the Camera.stereoSeparation value.
EditorFix
Fixed a display issue and now only one GPU is available to select as the "GPU Baking Device" when multiple identical GPUs are installed.
Fixed an issue where emission color was erroneously reused for different renderers using the same material when they have similar lightmap UVs.
Fixed a bug with Cubemap.GetPixel(CubemapFace face, int x, int y) not passing its parameters correctly.
Throw an ArgumentNullException if null is passed in as a parameter to Unwrapping.GeneratePerTriangleUV.
Fixed Display systemWidth and systemHeight being wrong until window is moved to another display.
Fixed an issue where the API updater was not able to apply changes to internal packages when the project controlled by Perforce.
Fixed possible Editor hang while it waits for AssemblyUpdater when importing assemblies.
Added the slider's direction property not marking the scene dirty once this is changed when in prefab's isolation/context mode.
Fixed an issue that the Physics2DRaycast will now use SortingGroups when determining the sorted order of its results.
Fixed Alt + Enter does not scale resolution/aspect ratio when going from windowed to fullscreen mode.
Updated branding from "Plastic SCM" to "Unity Version Control" Improved offline experience by disabling the plugin when there is no internet connection.
Version ControlChange

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