2021.3.10f1

Creating a new vertex or an edge outside of the main geometry is now handled correctly. (1398541)

Fixed editor crash when calling SpriteAtlasUtility.PackAtlases.

Fixed the isolate behavior in the Sprite tab in the Visibility panel. (DANB-67)

When a recursive depth from instantiating GameObjects using a Tilemap Tile reaches a threshold, an error message is logged and the recursive loop is stopped in the Editor or in Development Players.

When modifying Sprite Library's Category name after user presses apply, the changes to the name are saved. (DANB-6)

Added mono audio output support.

Fixed a possible crash on many PowerVR based devices.

Asset preview thumbnails in the Editor's project window would sometimes be missing reflection probe lighting, this has been fixed and re-baking reflection probes (after making some change, such as to the material) will update thumbnails.

Fixed 'learn more' online documentation links for asset import workers and Unity Accelerator in the editor UI, so they target the currently loaded version of Unity.

Fixed an issue where assets with dots in the filename (other than the extension) could incorrectly invoke a warning about mismatched main object names.

Fixed an issue where the asset database might fail to detect that custom postprocessing of assets had produced an infinite loop during project import.

Fixed AudioClipPlayable.IsDone is false when AudioClipPlayable.Seek is used to reset the time.

Fixed a deadlock in Accelerator upload while using '-quit'.

Fixed an issue with too many open files when downloading from Accelerator.

Fixed crash when OnDemand scheduler tries to upload previews without accelerator connection.

Fixed package manager dropdown position sometimes is not fixed below it. Fix some GUIDepth errors.

Installing Linux mono and IL2CPP support on mac will no longer keep only the most recently installed of the two.

Timestamp for boot.config in user project is now only updated when changed.

Fixed an issue where environment lighting is missing from player builds when the scene hasn't been baked.

Fixed APV Partial Baking when using GPU Lightmapper.

Fixed denoising issues with OIDN and OptiX denoisers on GPULM when using different values for direct lighting sample count and indirect lighting sample count.

Fixed for prefab assets showing in Light Explorer when Show Inactive Objects is checked.

Fixed crash in Vulkan Editor on Windows when using XR Mock HMD.

Disabled capitalization, autocorrection and others when soft keyboard is secure and input is hidden.

Fixed a texture leak when UnityWebRequest is used with DownloadHandlerTexture and a texture is never queried.

Skip draw call for gpu instanced mesh particle trails if using same material as particles.

Fixed context menu does not appear when holding Ctrl and pressing left mouse button in the Project window on Mac.

Increased performance by not casting Mathf.Abs to float when passing a float value.

Properly track managed-only classes so they are not stripped by the il2cpp linker.

Fixed a crash when calling GetShaderKeywords on a user-constructed ShaderKeywordSet.

Unity Game Services projects no longer creates a dropdown when the project names contains a slash in the Editor Project Linking UI.

Fixed warning caused by unprocessed focus events sometimes happening when detaching a UIDocument containing a focused element from its parent panel.

A "Can't play movie" error is now thrown when setting VideoPlayer.url to an invalid url through a script.

Fixed an issue so that the UnityPlayer.dll properties sheet is now more complete.

Fixed incorrect scan codes that are exposed through KeyControl.scanCode of New Input System.