Release notes

Known Issues in 2021.3.4f1

  • Android: Editor is unable to find JAVA when building an application (UUM-2106)

  • Asset - Database: Texture size increased on first build when 'Compress Textures/Assets on Import' is enabled (1397965)

  • Asset Bundles: Textures are not compressed when building bundles (1412557)

  • Graphics Device Features: Random-write to UAV texture from shadowcaster shader causes GPU hang when filtering Scene Hierarchy objects (1417589)

  • HD RP: [HDRP][DXR] Temporal denoising is broken up to 2021.3 in punctuals raytraced shadows (UUM-2140)

  • IL2CPP: [Android] Build fails when building an exported project with Script Debugging enabled (1373278)

  • IMGUI: Impossible to change the Gradient's location value in the Visual Effects Graph when using the keyboard (1420954)

  • Inspector Framework: First array element expansion is broken for arrays that use Custom Property Drawers (1409773)

  • Kernel: Unity crashes on StackWalker::GetCurrentCallstack when rest-certificate.pem is corrupted (1423569)

  • Metal: Consistent EditorLoop 5-10ms spikes when using Metal API (1378985)

  • Mono: Crash with ScanAssemblyForAttributesAndInterfaceImplementations when opening a project (1376858)

  • Mono: Editor crashes intermittently on mono_object_isinst when closing it in batch mode or when building (1418292)

  • Package: Empty "StreamingAssets" folder gets created after building an empty project (1423325)

  • Physics: Crash on internalABP::ABP_PairManager::addPair when switching to ArticulationJointType.SphericalJoint during runtime (1418715)

  • Quality of Life: [Mac] ShortcutManager ignores Shift modifier (1424655)

  • Shader System: Editor crashes in Play mode when Groupshared memory and a constant buffer value is used in a compute shader on OpenGLES3 (1413012)

2021.3.4f1 Release Notes


  • Graphics: Added gaze foveated rendering (GFR) on Vulkan.


  • Android: Added the AssetBundle extension to the list of exceptions for gradle compression of StreamingAssets. (1405245)

  • Documentation: Added code snippet for Physics.ContactModifyEvent.

  • Services: Opting out of analytics within the editor is now available to all customers and will sync the settings with the Unity backend.


  • 2D: Fixed case where Lighting is incorrect when Sprite Atlas uses secondary Texture Normal Maps in Linear Color Space. (1378322)

  • 2D: Fixed Tile Palette window incorrectly preventing selection in Scene View when Tilemap Tools are inactive. (1365564)

  • Android: Fixed an issue to allow 2 segment package names. (1425979)

  • Android: Fixed app-freezing when an application changes into multi-window(split-screen) on Chrome OS tablet mode. (1361131)

  • Android: Fixed Screen.resolutions to return all supported refresh rates, not only 60Hz. (1426366)

  • Animation: Fixed an issue where the parameter preview of the animator did not work anymore. (1388833)

  • Editor: Sped up drag & drop in the Project view on large projects. (1314065)

  • GI: Strip shader variants with DIRLIGHTMAP_COMBINED keyword enabled when both LIGHTMAP_ON and DYNAMICLIGHTMAP_ON are disabled when building the player. Directional lightmap logic is always enclosed in the more general baked or dynamic lightmap blocks. (1307896)

  • Graphics: Fixed a crash when calling Graphics.RenderMesh for a Mesh that was destroyed. (1404273)

  • Graphics: Fixed flickering of particle system when using Vulkan. (1417289)

  • IL2CPP: Fixed a crash during liveness processing when asynchronous delegate invocation is used. (1417730)

  • IL2CPP: Fixed an issue where calls to GetHashCode on value types with no instance fields would not return a stable value. (1411455)

  • IL2CPP: Fixed builds failures when doing .NET Framework API builds and referencing types in System.Drawing. (1413051)

  • IL2CPP: Fixed code generation for Enum.HasFlag when its second argument is a System.Enum type. (1420369)

  • IL2CPP: Fixed function pointer bugs with integer casting and signature comparisons. (1391567)

  • IL2CPP: Fixed invalid C++ code for unmanged function pointer call in shared generic code. (1417082)

  • IMGUI: Removed hard-coded color space of the gradient picker. (1383095)

  • Input: Fixed keyboard not working on iOS 15. (1376970)

  • Kernel: Fixed VirtualFileSystem tests failing in the case of short paths being returned. (1402346)

  • Linux: Fixed a crash at the launch on systems that does not support Vulkan and OpenGL3.2. (1372651)

  • Linux: Fixed input system package drop down is a blank square issue. (1391850)

  • macOS: Enabled the Build and Run button for Apple Silicon builds in the Silicon Editor. (1415688)

  • Mono: Fixed a bug where the SmtpClient would ignore the ServicePointManager's SecurityProtocol level. (1389326)

  • Mono: Fixed a crash when de-serializing managed objects that have changed field types. (1378713)

  • Mono: Fixed a rare incremental GC crash on Windows. (1411601)

  • Mono: Fixed an incorrect exception being thrown via Process.Start when windows path contains '. (1387637)

  • Mono: Fixed an issue where callstacks would not be reported on OSX. (1411374)

  • Mono: Fixed default interface method crash when using mismatched generic arguments. (1394314)

  • Mono: Fixed PlatformNotSupportedException when calling System.Security.Cryptography.ProtectedData.Protect. (1397970)

  • Mono: Implemented ProcessStartInfo.ArgumentList which was introduced in .Net Standard 2.1. (1396842)

  • Mono: Improved error handling to throw a MarshalDirectiveException when marshaling generic instances as return types from pinvoke callbacks. (1390445)

  • Mono: Removed handling SIGINT when Mono is embedded in Unity and the Player. (1376434)

  • Physics 2D: Fixed an issue in the CustomCollider2D where a shapes bounds were not updating when replacing existing shapes with different vertices only. This resulted in an incorrect collision detection for that shape. (1425289)

  • Scene/Game View: Fixed possible argument exception when using Scene Visibility API. (1288443)

  • Scripting: Fixed a case where the type of generic fields inside generic classes would fail to get resolved when building the project. (1415422)

  • Scripting: Fixed filtering of assemblies by platform constraints not working and by defines. (1373388)

  • Serialization: Fixed a crash when deserializing a Prefab instance containing a resize on an array containing a nested type with a Fixed Buffer. (1400774)

  • Shaders: Fixed a crash when warming up a shader variant collection that had a shader with UsePass. (1407692)

  • Shaders: Fixed include dependencies being reported incorrectly when guarded by defines that depend on keywords. (1401580)

  • Shaders: Fixed redundant shader variant recompilation after Editor relaunch. (1425799)

  • Shaders: Fixed ShaderKeywordSet.Disable not disabling keywords. (1417644)

  • uGUI: Fixed RectMask2D using the wrong Canvas for calculations after it was reparented. (1395695)

  • UI Toolkit: Fixed the preview texture of linear gradients in gamma projects. (1369425)

  • Universal: Fixed an issue that preview cameras no longer spam errors on the first frame of rendering. (1393818)

  • URP: Fixed an issue of Renderer2D using the incorrect render path when lights are out of the scene view. (1400566)

  • URP: Fixed errors when using Native RenderPass and Render Objects feature after Post Processing.

  • URP: Fixed smooth material lighting banding issues on mobile platforms. (1375791)

  • VFX Graph: Fixed an issue that in Output Particle blocks, shader graph exposed properties order is now consistent with shader graph blackboard. (1398256)

  • Video: Fixed an issue that Video's Alpha not transparent when built with WebGL. (1397499)

  • WebGL: Fixed WebGL build in the Linux editor to include default resources. (1411380)

  • XR: Fixed Unity VR Splash screen not showing up on UWP.

Package changes in 2021.3.4f1

Packages updated

Packages added

Pre-release packages added

Changeset: cb45f9cae8b7

Unity 2021.3.4

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