Unity 2021.1.2

Install this version with Unity Hub.

Additional downloads

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.

Update now

New to Unity? Get started

Release notes

Known Issues in 2021.1.2f1

• Addressable Assets: Performance bug reported by the DOTS team in PreloadManager::WaitForAllOperationToComplete (1322086)

• 2D: [Skinning Editor] Vertex can't be created after modifying Vertexes weight and when Sprite is from the .psb file (1322204)

• Windows: [Windows 7] "WindowsVideoMedia error 0xc00d36b4" error is thrown when loading a video with the VideoPlayer (1306350)

• Scripting: Increased Script Assembly reload time (1323490)

• Asset Bundles: Synchronous Asset Loading Does Not Correctly Load Preload Dependencies (1321141)

• Linux: Linux Editor crashes at "_XFreeX11XCBStructure" when loading tutorials (1323204)

• Asset Importers: [Performance Regression] Importing an fbx model is noticeably slower when the model contains Animations (1265275)

• 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)

• 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)

• XR: OpenXR + URP + UWP rendering stuck (1323833)

• MacOS: [macOS] "build is damaged and cannot be opened" error when downloading Unity build from internet (1323501)

• Packman: Package Manager incorrectly shows that there are no packages in a new project (1319205)

• Scripting: Crashes on mono_class_init when entering Play Mode after recompiling scripts (1262671)

• 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)

• Polybrush: [PolyBrush] Something went wrong saving brush settings Warning is thrown when Saving a Brush after opening the PolyBrush Window (1315475)

2021.1.2f1 Release Notes

Improvements

• Graphics: Add control to independently clear stencil buffer in CommandBuffer api.

• Scripting: CompiliationPipeline.GetAssemblies will now correctly include Roslyn analyzers in ScriptCompilerOptions.

• XR: Removed "Preview" text from UI display element.

API Changes

• Graphics: Added: New API functions with no side effects in DynamicResolutionHandler, to retrieve resolved drs scale and to apply DRS on a size.

• Graphics: Added: New API in DynamicResolutionHandler to handle multicamera rendering for hardware mode. Changing cameras and resetting scaling per camera should be safe.

Changes

• HDRP: Updated Wizard to better handle RenderPipelineAsset in Quality Settings

• Package: Updates com.unity.cinemachine to 2.7.3

• Shadergraph: Fixed a bug where property deduplication was failing and spamming errors (1317809)

• Timeline: Updated Timeline package to version 1.5.4.

• XR: The Oculus XR Plugin package has been updated to 1.9.0.

Fixes

• Animation: Fixed issue where Timeline would stay stuck after going to Play Mode. (1315060)

• Asset Import: Fixed issue where OnAssignedMaterialModel is not called for meshes that get a default material assigned. (1307374)

• Asset Pipeline: : Fixed asset that could get reported when projectsetting.asset file is modified directly. (1270162)

• Build Pipeline: Fixed excessive garbage collection occurring during the build process. (1318468)

• Editor: Fixed "Lightmap Static" being displayed instead of "Contribute GI" in the editor Static flags dropdown. (1298221)

• Editor: Fixed "TLS Allocator" error when using Asset Store Tools. (1303631)

• Editor: Fixed for Window with 'hasUnsavedChanges' set to true not being saved when closed with Middle Mouse Button. (1307671)

• Editor: Fixed IsArrayReorderable method producing errors in Reflect package (1321782)

• Editor: Fixed multi-target ReorderableLists that have more than the maximum allowed multi-edit number of elements appearing as empty (1317103)

• Editor: Fixed ReorderableList allocating memory when getting multi-target array size (1297993)

• Editor: Fixed reordering lists with Gradient elements being visually outdated after reorder (1315679)

• Editor: On Windows, a maximized instance of Unity on a second, lower resolution display will now remain maximized on that display when the Editor is restarted. (1314966)

• Editor: Removed EditorGUIUtility.GetSkinnedIcon and EditorGUIUtility.GetSkinnedIconForDpi to fix unloading of unused textures. Moved part of the implementation in C++ while keeping the features provided by the removed functions. (1308097)

• Editor: Using an unsupported keyCode in a shortcut attribute no longer throws any exceptions. (1303144)

• GI: Fixed a null pointer bug in graphics bindings. (1310875)

• GI: Fixed progressive updates not working for the first bake of an editor session. (1300926)

• Graphics: Calculating correct rtHandleScale by considering the possible pixel rounding when DRS is on

• Graphics: First Material data is used for Shadowmap rendering when using multiple Materials with the same Shader and different properties (1304644)

• Graphics: Fix for async texture deletion to make sure graphics commands have completed first. (1280073)

• Graphics: Scissor test was automatically disabled when changing render-targets. It is not the case anymore and is consistent with other platforms.

• HDRP: Fixed missing Update in Wizard's DXR Documentation

• HDRP: Fixed multicamera rendering for Dynamic Resolution Scaling using dx12 hardware mode. Using a planar reflection probe (another render camera) should be safe.

• HDRP: Fixed pixelated appearance of Contrast Adaptive Sharpen upscaler and several other issues when Hardware DRS is on

• IMGUI: Fixed an issue where clearing search field using 'x' button does not register changed event. (1306036)

• iOS: Fixed a UnityWebRequest issue that caused freezing on background/resume when the device is offline. (1315244)

• iOS: Fixed FixedUpdate being called on startup more times than should be to account for Time.deltaTime on first Update. (1318647)

• Particles: Fixed incorrect error check in SetParticles that would cause an exception to be thrown when the offset value was equal or greater than the particles array length. (1313413)

• Physics: Ensure that a Kinematic Rigidbody2D continues to accept MovePosition and/or MoveRotation commands when nested as a child of another Rigidbody2D. (1320783)

• Physics: Fixed Collision.relativeVelocity being calculated incorrectly when an ArticulationBody was part of the contact pair. (1310485)

• Scene Manager: This change prevents Unity from crashing when the asset of the current opened scene has been deleted, a new scene asset is imported, with same GUID, and the user chooses "reload". (1309393)

• Scripting: Fixed Filename/Line extraction in logs not working correctly in some edge cases. (1300479)

• Scripting: Fixed a problem when adding UI Toolkit pkg to a project where a scripted imported from the pkg would get rejected and exceptions would be reported to the user. (1269167)

• Scripting: Fixed ScriptUpdater crash when Editor is installed in a folder with spaces in the path. (1309831)

• Serialization: Fixed regression where Event code could be stripped from build when using il2cpp. (1301147)

• Services: Fixed a bug where the crash reporting symbol uploader process would crash on Apple M1 hardware.

• Services: Fixed a bug where the crash reporting symbol uploader process would crash on parsing certain dSYM files.

• Shaders: Fixed #pragma once directive not working correctly with the caching preprocessor (1322879)

• Shaders: Fixed a rare crash when upgrading shaders. (1299790)

• Shaders: Fixed incorrect code generated by HLSLcc for textureQueryLod GLSL function (1314040)

• Shaders: Fixed incorrect line numbers reported for errors in shader files when using Caching preprocessor (1318689)

• Shaders: Fixed shader compilation regression on Win 7 (1318359)

• Shaders: Fixed shader keyword overflow when doing a build (1297800)

• Shaders: Fixed sprites using default sprite material not rendering in the Editor when build target is set to console (1318066)

• Timeline: Fixed error message when playing an audio track from its last sample. (1319163)

• Video: Calling VideoPlayer.Prepare and VideoPlayer.StepForward produces a frame on a Render Texture (1318270)

• WebGL: Added support for detecting Chrome and Firefox browsers on iOS devices. Fixes an issue that Chrome and Firefox browsers would fail to load on iOS 14.4. (1316861)

• WebGL: Changed behavior of Application.OpenURL() for the WebGL platform to open an URL in a new browser tab instead of opening the URL in the current browser tab and thus navigating away. (1320393)

• Windows: Setting a custom cursor now respects Windows DPI and Ease of Access settings related to the cursor size. (1305480)

• XR: Always disable optimized frame pacing when using XR. (1288764)

• XR: Fixed rect used by scissor test on Vulkan (1203183)

• XR: Fixed URP Vulkan shows low perf on stress test when running development build. (1299445)

• XR: Updated XR Interaction Toolkit to 1.0.0-pre.3.