This is an older version. The current version is 2021.3.45f2. Unity 2021 2021.3.45f2 · Released:
2021.3.20f1 is part of the 2021.3 line, which reached its end of life on February 18, 2025. It no longer receives security fixes. endoflife.date
Installer files 2021.3.20f1
| Architecture | Type | Scope | File size | Download | SHA256 |
|---|---|---|---|---|---|
| 64-bit | EXE (NSIS) | All users | — | download.unity3d.com | VirusTotal |
Link and SHA256 come from the Windows Package Manager community manifest. Compare the hash of the downloaded file before running it.
Release notes
Improvements
- Editor: Improved performance of Transform.Find() API especially when working with large numbers of children.
Changes
- Version Control: Updated branding from "Plastic SCM" to "Unity Version Control"Markdig.Syntax.Inlines.HtmlInline Improved offline experience by disabling the plugin when there is no internet connection
Fixes
- 2D: Store directory path instead of file path as the last used asset path when doing a drag and drop to create a Tile Asset ("UUM-25250")
- Android: Build will fail, if custom asset pack does not have a valid structure. ("UUM-25501")
- Android: Fixed an issue where Network.OperationalStatus would always return Unknown for Android. ("UUM-19683")
- Android: Fixed the Time.deltaTime values so they are now stable on Android devices. ("UUM-10244")
- Asset Pipeline: Fixed indeterministic output for any asset containing script types. ("UUM-22077")
- Build System: Fixed a BuildPipeline issue for the Android platform and MacStandalone builds which asks for a name and directory, despite having the last saved location details. This is triggered by using Ctrl+B (Windows) or Cmd+B (macOS). ("UUM-19897")
- Editor: Fixed a regression that changed the default behaviour of animators on disabled. (UUM-27229)
- Editor: Fixed an issue copying hideflags to the cloned object when instantiating a GameObject. (UUM-22863)
- Editor: Fixed component added twice when dragging script asset on inspector window from project window ("UUM-26276")
- Editor: Fixed Crash on GUIView::ProcessInputEvent when switching Editor layout ("UUM-12892")
- Editor: Fixed drag and drop crashes the editor if the window is docked. ("UUM-23241")
- Editor: Fixed error when opening the "Select Preset" window while having a user defined Preset class assets ("UUM-11334")
- Editor: Fixed Overlays not preserving enabled state through domain reloads. ("UUM-20070")
- Editor: Fixed Slowdown spikes when moving an object in the scene caused by the PropertyDatabase. ("UUM-22631")
- Editor: Fixed the size of the editor window being smaller than the wrongly set default ("UUM-24686")
- Editor: Fixed Unity Event callback list calculating its height incorrectly ("UUM-9380")
- Editor: The Focused Inspector window cannot be opened for multiple different Assets via the Inspector window ("UUM-19504")
- Editor: Unsaved changes made to assets are now preserved when renaming an asset while using Perforce ("UUM-17896")
- Editor: Using "Synchronous" flag with search expressions hangs Unity (UUM-14546)
- GI: Fixed the help link at the top of the Lighting Window. ("UUM-25787")
- IL2CPP: Emitted code that compiles for array element access from null in a non-development player build. ("UUM-597")
- IL2CPP: Enabled proper handling of the unbox opcode when the result is used across IL basic blocks. ("UUM-21101")
- IL2CPP: Fixed a compile error when you enable bitcode for an Android build. ("UUM-25113")
- IL2CPP: Fixed the InvalidCastException being thrown when you serialize jagged arrays using BinaryFormatter. ("UUM-23156")
- IL2CPP: Fixed UnintializedDataAccessException when processing a function pointer that has a function pointer as a parameter. ("UUM-9030")
- Kernel: Fixed broken RECORD_ALLOCATION_SITES functionalit. (UUM-26702)
- Kernel: Fixed crash resulting from UnityDefaultAllocator not tracking all allocations. (UUM-23090)
- Kernel: Fixed potential crash at app shutdown. (UUM-26528)
- macOS: Fixed Display systemWidth and systemHeight being wrong until window is moved to another display ("UUM-501")
- Mono: Enabled proper handling of the unbox opcode when the result is used across IL basic blocks. ("UUM-21101")
- Mono: Fixed a crash when using ConditionalWeakTable. ("UUM-25411")
- Package Manager: Packages are deleted after changing the My Assets cache location to non-default when the asset is updated in Package Manager. ("UUM-25376")
- Prefabs: Disabled IMGUI ReorderableList elements when previewing overridden values PrefabMode InContext. ("UUM-13618")
- Scripting: Fixed possible Editor hang while it waits for AssemblyUpdater when importing assemblies ("UUM-7944")
- Shaders: Fixed asset bundle backwards compatibility regression on material keywords. (UUM-26498)
- SRP Core: Fixed a Render Graph bug where culled passes would be delegated to releasing a resource, resulting in unwanted leaking. (UUM-20800)
- uGUI: Fixed CanvasRenderer color reset on Clear ("UUM-3527")
- UI Toolkit: Fixed the ListView itemsRemoved event being invoked after the items were removed from the serializedObjectList. They are now removed after the callback. ("UUM-10786")
- Universal RP: Fixed a missing keyword in ParticlesSimpleLit for Lightmap shadow mixing. ("UUM-26403")
- Universal RP: Fixed an issue so that deferred rendering now works correctly in builds with Accurate GBuffer Normals enabled. ("UUM-25112")
- URP: 2D - Fixes 2D Sprite Light Markdig.Syntax.Inlines.HtmlEntityInline Freeform Light fast normal map quality setting to correctly use normal map (UUM-4613)
- URP: 2D - Fixes a bug with ShadowCaster2D's shadow mesh bounds which was causing shadows to disappear ("UUM-19090")
- VFX Graph: Fixed enum fields could be cropped when text is too long (UUM-4420)
- Windows: Fixed a potential crash during Windows Player cleanup. ("UUM-25383")
- Windows: Fixed Build to source folder when the project build dir is deleted. (UUM-25240)
