Release Notes Background

Unity 2021.3.53f1

Released on Jun 18, 2025

Manual installs

Component installers

Release

Known Issues in 2021.3.53f1

  • : Garbage Collector memory leak when allocating and deallocating memory in Web builds (UUM-86352)

  • : Graphics.RenderMeshIndirect does not issue multi-draw rendering commands when using a graphics API capable of multi-draw commands (UUM-91617)

  • : Increased Memory usage when Update Mode 'On Demand' Realtime lights are used and DX12 API is selected (UUM-90065)

2021.3.53f1 Release Notes

Changes

  • Build Pipeline: Build Pipeline: Allow building AssetBundles with both the DisableTypeTree and StripUnityVersion flags. Fix the ability to load these AssetBundles in the Runtime. (UUM-102575)

  • XR: Updated com.unity.xr.openxr package version to 1.15.0-pre.2.

Fixes

  • 2D: Fixed normal map preview in Sprite Editor Window's Secondary Texture module. (UUM-99022)

  • Android: Fixed AndroidJNI.ToBooleanArray not returning 0 when null. (UUM-90092)

  • iOS: Fixed QualitySettings handling (when AA is involved) in Split View. (UUM-61559)

  • Package Manager: Fixed an issue where installing a git package using Git LFS would not work with Git LFS 3.6.0 and higher. (UUM-91342)

  • Package Manager: Make GetPatckagesPath thread/serialization safe. (UUM-104998)

Package changes in 2021.3.53f1

Packages updated

Changeset: 5c710799360e

Third Party Notices

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