Install this version with Unity Hub.
Select the runtime platforms of your choice from the list below (the desktop runtime is included as standard) or, to install the full complement of runtime platforms, use the download assistant installer above.
Known Issues in 2021.1.3f1
Metal: Performance in Game View is significantly impacted by Gfx.WaitForPresentOnGfxThread when a second monitor is connected (1327408)
Terrain: All the textures are cleared when creating Texture array (1323870)
Animation: [Perfomance Regression] AnimationWindowState:get_allCurves takes approximately 5000ms to load animation in the Animation window (1320250)
HD RP: The camera doesn't rotate in HDRP Template with the SimpleCameraController.cs script (1326816)
Scene Management: Crash on BuildPrefabInstanceCorrespondingObjectMap when overriding nested prefab inside AssetDatabase.StartAssetEditing() block (1324978)
WebGL: "SharedArrayBuffer will require cross-origin isolation as of M91" warning is thrown when launching Player on Chrome (1323832)
2D: [Skinning Editor] Vertex can't be created after modifying Vertexes weight and when Sprite is from the .psb file (1322204)
Scripting: Increased Script Assembly reload time (1323490)
Linux: Linux Editor crashes at "_XFreeX11XCBStructure" when loading tutorials (1323204)
Terrain: Crash on TreeRenderer::WillRenderTrees when being in Play Mode for several seconds (1317966)
IMGUI: Contents of a ModalUtility window are invisible when it is launched from a Unity Context Menu (1313636)
Global Illumination: Reflection probes doesn't contain indirect scene lighting after the on-demand GI bake from the Lighting window (1324246)
Packman: User can't easily configure location of both UPM and Asset Store package local cache (1317232)
Serialization: Crash in SerializedProperty::IsValid when reordering a SerializedProperty list (1320319)
Global Illumination: [GPUPLM] Crash in RadeonRaysMeshManager::RemoveGeometry while baking Terrain game object with 4k lightmaps on certain GPU (1255993)
Terrain: Terrain Lit Opacity as Density option causes alpha'd areas on the 5th layer or greater to appear with artifacts (1283124)
Asset Bundles: Synchronous Asset Loading Does Not Correctly Load Preload Dependencies (1321141)
Addressable Assets: Performance bug in PreloadManager::WaitForAllOperationToComplete (1322086)
Packman: Package Manager incorrectly shows that there are no packages in a new project (1319205)
Windows: [Windows 7] "WindowsVideoMedia error 0xc00d36b4" error is thrown when loading a video with the VideoPlayer (1306350)
Scripting: Crashes on mono_class_init when entering Play Mode after recompiling scripts (1262671)
Global Illumination: Wintermute::Geometry::Verify errors are spammed when baking a Mesh with Mesh Compression set to Medium/High (1319133)
Cloth: Cloth is broken when parent GameObject scale is lower than 1 and Surface Penetration constraints are set 0 (1319488)
MacOS: [macOS] "build is damaged and cannot be opened" error when downloading Unity build from internet (1323501)
Asset Importers: Wintermute::Geometry::Verify errors are spammed when baking a Mesh with Mesh Compression set to Medium/High (1313968)
2D: [URP] The Camera renders black screen when Post Processing is enabled in the 2D Renderer and in the Camera Component (1318500)
2021.1.3f1 Release Notes
Web: Updated UnityWebRequest's libCurl backend (used on most platforms).
XR: Updated Windows MR Package to 5.2.2.
2D: Animation Package 6.0.0 as verified package.
2D: Pixel Perfect 5.0.0 as verified package.
2D: PSDImporter 5.0.0 as verified package.
2D: Sprite Shape 6.0.0 as verified package.
2D: Tilemap Extras 2.0.0 as verified package.
Audio: Don't shut down audio output device in edit mode when DSPGraph is running. (1310050)
DX12: Fixed black screen that would show when using a non-native resolution in fullscreen. (1318666)
Editor: Fixed Material Editor large thumbnails not showing up correctly for material texture properties when the texture type is Texture2DArray or Texture3D. (1288995)
Editor: Fixed Texture3DPreview InfoString incorrectly displaying: Texture dimensions as Z-Y-Z instead of X-Y-Z & very small resolutions. (1321095)
Graphics: Fixed DrawProcedural reporting incorrect triangle counts to FrameStats.
Graphics: Fixed performance issue when loading textures direct to GPU memory from LZ4 compressed packages. (1307820)
IL2CPP: Fixed possible ArgumentException when converting a call to a type that implements multiple variations of the same generic interface. (1319313)
IL2CPP: Redist dlls copied from MSVC & Windows SDK for Windows Games platforms. (1299856)
iOS: Fixed a performance issue where Microphone.Start would cause CPU spikes on iOS. If the user selects the player setting "Prepare iOS for Recording", these spikes have been eliminated. They will now only occur when switching back-and-forth between a built-in microphone and a Bluetooth microphone. When using "Prepare iOS for Recording", most projects will also want to set "Force iOS Speakers when Recording". (1281833)
iOS: Leaderboards now return the non deprecated player ID on appropriate OS versions. (1312882)
Linux: Install sysroot packages automatically only when Linux IL2CPP is present. (1325982)
macOS: Fixed failing to resign binaries after Unity has signed them with error: "file not in an order that can be processed (code signature data out of place):". (1324168)
macOS: Fixed Windows and Linux native plugins getting included into the generated Xcode project. (1321049)
Package Manager: Fixed an issue where adding packages from a registry which returned invalid publish dates would fail. (1318975)
Package Manager: Fixed an issue where the
UnityEditor.PackageManager.Client.SearchAllmethod would result in a connection error despite using
offlineMode = true. (1319585)
Package Manager: Fixed an issue which could sometimes cause package resolution errors due to
EMFILEerrors in projects with a large number of packaged assets.
Package Manager: Fixed an issue which could sometimes lead to missing files in successfully resolved packages in projects with a large number of packaged assets.
Package Manager: Fixed an issue which prevented starting
UnityPackageManager.exeon Windows when its path contained non-ANSI Unicode characters. (1317244)
Particles: Fixed invalid AABB error when using Rate over Distance and Limit Velocity. (1317418)
Scene/Game View: Fixed Physics Debugger not selecting collider debug volumes first when clicking. (1309768)
XR: Fixed depth buffer sharing support. (1242142)
XR: [Lumin] : Fixed some improper temp string usage that was causing the allocator to spam the system logs. (1284830)