VersionAlert for UnityVersionAlert for Unity

Unity 6000.0.66f2

LTS

Released Monday, January 26, 2026

✨

AI Summary

Premium

{ "summary": "Unity 6000.0.66f2 introduces a significant performance improvement for editor workflows by adding a 'Force GC on Scene Load' option in Project Settings, allowing developers to disable automatic garbage collection during scene loads. This release also brings a revamped Version Control interface with new panels for diffs and properties, alongside numerous editor and graphics stability fixes.", "highlights": [ "New 'Force GC on Scene Load' option in Project Settings to potentially improve editor performance by disabling automatic garbage collection on scene loads.", "Revamped Version Control interface with a new cset-by-cset diff panel, properties panel for

⚠️ Known Issues

  • UUM-132182 6000.0.55f1,6000.3.0a4: Crash on RaiseException when creating a multiplayer room while toggling UI
  • UUM-131104 6000.0.64f1: [DX12] [Win11 ARM64] Machine crashes and restarts while trying to create a new project
  • UUM-132342 6000.1.0a2,6000.0.64f1: Single-pass stereo rendering shows only Skybox when entering Play mode
  • UUM-131198 6000.3.0a1: Last selected asset before docking Animation window gets selected when a domain reload occurs
  • UUM-131962 6000.3.0b1,6000.0.65f1: Editor freezes when QualitySettings.maxQueuedFrames is set to 1 and DX12 is used
  • UUM-131071 6000.5.0a4: Profiler (Standalone) window doesn’t open
  • UUM-104889 DirectX12: [Intel] Crash on BufferD3D12::BeginWrite when opening a newly created URP project with DirectX12 set as the default graphics API
  • UUM-125284 IL2CPP: [iOS] [Android] External library generics fail during IL2CPP build
  • UUM-130881 iOS: Rendering freezes and UnityGfxDeviceWorker crash when Show Splash Screen is enabled and Project is built using Unity as a Library
  • UUM-125778 Metal: Game freezes after command buffer Timeout error
  • UUM-121453 Metal: [iOS] Screen flashing after the iOS splash screen
  • UUM-126803 Platform Audio: [Windows] Crash on AudioManager::InitFMOD when performing various actions in the Editor
  • UUM-132677 : Editor memory leak when entering and exiting Play Mode in a blank URP project
  • ### 6000.0.66f2 Release Notes

✨ Features

  • Editor: Added a new option "Force GC on Scene Load" to the Editor Scene Handling section of the Project Settings which when disabled will prevent a forced GC and unused asset unloading every time a scene is loaded in the editor. This can improve performance \(sometimes significantly\) although it may also affect exactly when managed object finalizers are called which in rare circumstances might be an issue depending on the project.
  • Version Control: Added a cset by cset diff panel in the branches view.
  • Version Control: Added a properties panel for the selected changeset/shelveset.
  • Version Control: Added branch name\(s\) to the branch deletion dialog.
  • Version Control: Added empty state in the history view.
  • Version Control: Added specific empty states for Pending/Incoming Changes with filters.

📈 Improvements

  • Graphics: Handle case where vulkan pipeline cache file could be corrupted and cause vkCreatePipelineCache to fail.

🔄 Changes

  • Editor: Changed previous fix to only happen in Editor outside of Play Mode.
  • Version Control: Displayed progress indicator overlaying the view.
  • Version Control: Implemented a "clever" truncation of paths.
  • Version Control: Moved incoming and shelves notifications to the top bar.
  • Version Control: Redesigned all the views and dialogs.
  • Version Control: Redesigned the main panel to include a top breadcrumb.
  • Version Control: Renamed toolbar dropdown to comply with a 120px max width limit in 6.5.
  • Version Control: Show real indeterminate progress bar.
  • Version Control: Updated deleted and moved overlay icons.

🔧 Bug Fixes

  • UUM-133005 Package Manager: Resolved a bug causing valid package signatures to be flagged as invalid if validated after the signing certificate expired.
  • UUM-130899 2D: Fixed SpriteAtlas.GetSprite/GetSprites methods return incorrect position when processing the sprites.
  • UUM-111037 Android: On Android XR devices, fixed a hang in FMOD shutdown when calling Application.Quit\(\).
  • UUM-78472 Documentation: Fixed documentation on GetPixelBilinear describing the behavior in detail.
  • UUM-129239 DX12: Make sure that custom scaled HDR backbuffer proxy RTV has the same format as the underlying resource. Now rendering to custom scaled HDR swapchain should not result in a crash.
  • UUM-125732 Editor: Allocator.Domain will print an error if over capacity, instead of crashing.
  • UUM-125732 Editor: Allocator.Domain will print an error if over capacity, instead of crashing.
  • UUM-128105 Editor: Changed docs for Accelerator and text in projectSettings.
  • UUM-127596 Editor: Fixed AddComponent menu not showing in certain multiple display layouts.
  • UUM-127533 Editor: Fixed certain Color fields not updating after the first click in UIToolkit Debugger.
  • UUM-104229 Editor: Fixed choppy animations in Player Settings embedded in the Build Profiles window.
  • UUM-127693 Editor: Fixed LinuxEditor accelerator key changes made by a context menu from persisting after the menu is closed.
  • UUM-131207 Editor: Fixed potentiel heap-buffer-overflow when applying prefabs modifications.
  • UUM-128744 Editor: Fixed prefab saving whilst still editing its field in the Prefab Stage.
  • UUM-88080 Editor: Fixed raycasting against a capsule collider for the situation where a ray enters the capsule from the top hemisphere and exits from the boundary between the cylinder side and bottom hemisphere. The distance returned from this hit is now the closest hit \(with the top hemisphere\) instead of the exiting hit.
  • UUM-128282 Editor: Fixed Some Build Profile settings do not remain checked when launching a project without the /Library folder through the command line.
  • UUM-107782 Editor: Fixed the Build Profile Build Button Dropdown to use `PointerDownEvent` instead of `ClickEvent`.
  • Editor: Fixed \| UGUI
  • UUM-99716 Fixed issue where Scroll Rect would lose inertia on some display resolutions.
  • UUM-102574 Editor: Make sure that vsync value specified in game view matches the real value with which the viewport is presented.
  • UUM-12996 Editor: Terrain trees : Fixed an issue where textures would be created for every non legacy trees, impacting memory.
  • UUM-119794 Editor: The developer console for XR projects has been disabled due to its very small and unreadable rendering.
  • UUM-91203 Graphics: Fixed freeze with particle systems when using Vulkan.
  • UUM-126235 HDRP: Fixed ClearDispatchIndirect not clearing all indirect arguments when thread count was not 64.
  • UUM-129367 iOS: Fixed iOS 26 logs appearing as <private> in Console app.
  • UUM-129085 Linux: Fixed New lines not registering in Multi-line UI text boxes.
  • Package Manager: Fixed an issue where `Client.Search` and `Client.SearchAll` returned incorrect `resolvedPath` values for uninstalled module packages.
  • Package Manager: Updated version validation message that contains unclear 'SemVer' abbreviation.
  • UUM-130353 Scene/Game View: Fixed the Camera Overlay that would break when camera name is too long.
  • UUM-114439 Shadergraph: Fixed a bug in UGUI Shaders Sample where Custom Toggles would not update properly when in a Toggle Group.
  • UUM-103082 Shadergraph: Fixed Toolbar Icons for Light Mode.
  • UUM-107865 Shadergraph: Fixed Toolbar Icons for Retina Display.
  • UUM-130102 Shaders: Fixed a crash in ShaderUtil.GetPassKeywords when called with ShaderType.RayTracing.
  • UUM-107314 Shaders: Fixed Prevent no keywords shader variant errors during DOTS material initialization.
  • UUM-114616 Shaders: Fixed the non deterministic build issue when building shader AssetBundle.
  • UUM-129416 URP: Removed unused DebugLevel field from URP asset.
  • UUM-128080 Version Control: Added instructions on how to disable the deep scan of local packages when a timeout occurs and the setting is enabled.
  • UUM-126026 Version Control: Fixed Editor freezes/hangs on "Reloading Domain" when entering Play Mode.
  • Version Control: Fixed Project Settings window moving to background when enabling or disabling Unity VCS in the Unity Version Control Settings.
  • Version Control: Fixed the delete shortcut not working on macOS.
  • Version Control: Fixed the menu references to Explorer instead of Finder when running on macOS.
  • Version Control: Fixed Version control icon disappearing when opening a scene or switching Play Mode.
  • UUM-129015 WebGL: WebGPU: Fix compressed texture mip levels having invalid texture data.
  • UUM-131803 WebGL: WebGPU: Fix maxComputeWorkGroupSize limit, which was previously set too high and could cause compute shaders to fail on some browsers.
  • UUM-128204 Windows: Fixed the copy pdb's option for WindowsStandalone to copy them next to the plugin.

📦 Packages Updated

    All Changes by Category

    🎮2D(1)

    fix

    UUM-130899 2D: Fixed SpriteAtlas.GetSprite/GetSprites methods return incorrect position when processing the sprites.

    🎬Animation(1)

    improvement

    UUM-131198 6000.3.0a1: Last selected asset before docking Animation window gets selected when a domain reload occurs

    📦Asset Pipeline(4)

    fix

    - UUM-133005 Package Manager: Resolved a bug causing valid package signatures to be flagged as invalid if validated after the signing certificate expired.

    fix

    Package Manager: Fixed an issue where `Client.Search` and `Client.SearchAll` returned incorrect `resolvedPath` values for uninstalled module packages.

    fix

    UUM-129085 Linux: Fixed New lines not registering in Multi-line UI text boxes.

    fix

    Package Manager: Updated version validation message that contains unclear 'SemVer' abbreviation.

    🏗️Build System(2)

    fix

    UUM-128204 Windows: Fixed the copy pdb's option for WindowsStandalone to copy them next to the plugin.

    improvement

    UUM-131071 6000.5.0a4: Profiler (Standalone) window doesn’t open

    🔧Editor(15)

    fix

    UUM-125732 Editor: Allocator.Domain will print an error if over capacity, instead of crashing.

    fix

    UUM-128105 Editor: Changed docs for Accelerator and text in projectSettings.

    fix

    UUM-127596 Editor: Fixed AddComponent menu not showing in certain multiple display layouts.

    fix

    UUM-127533 Editor: Fixed certain Color fields not updating after the first click in UIToolkit Debugger.

    fix

    UUM-104229 Editor: Fixed choppy animations in Player Settings embedded in the Build Profiles window.

    fix

    UUM-127693 Editor: Fixed LinuxEditor accelerator key changes made by a context menu from persisting after the menu is closed.

    fix

    UUM-131207 Editor: Fixed potentiel heap-buffer-overflow when applying prefabs modifications.

    fix

    UUM-126026 Version Control: Fixed Editor freezes/hangs on "Reloading Domain" when entering Play Mode.

    fix

    UUM-125732 Editor: Allocator.Domain will print an error if over capacity, instead of crashing.

    fix

    UUM-102574 Editor: Make sure that vsync value specified in game view matches the real value with which the viewport is presented.

    improvement

    UUM-126803 Platform Audio: [Windows] Crash on AudioManager::InitFMOD when performing various actions in the Editor

    improvement

    UUM-131962 6000.3.0b1,6000.0.65f1: Editor freezes when QualitySettings.maxQueuedFrames is set to 1 and DX12 is used

    feature

    - Editor: Added a new option "Force GC on Scene Load" to the Editor Scene Handling section of the Project Settings which when disabled will prevent a forced GC and unused asset unloading every time a scene is loaded in the editor. This can improve performance \(sometimes significantly\) although it may also affect exactly when managed object finalizers are called which in rare circumstances might be an issue depending on the project.

    fix

    UUM-128282 Editor: Fixed Some Build Profile settings do not remain checked when launching a project without the /Library folder through the command line.

    improvement

    - Editor: Changed previous fix to only happen in Editor outside of Play Mode.

    📝General(4)

    improvement

    UUM-131104 6000.0.64f1: [DX12] [Win11 ARM64] Machine crashes and restarts while trying to create a new project

    fix

    UUM-78472 Documentation: Fixed documentation on GetPixelBilinear describing the behavior in detail.

    improvement

    UUM-125778 Metal: Game freezes after command buffer Timeout error

    fix

    UUM-130102 Shaders: Fixed a crash in ShaderUtil.GetPassKeywords when called with ShaderType.RayTracing.

    🎨Graphics(18)

    fix

    UUM-103082 Shadergraph: Fixed Toolbar Icons for Light Mode.

    improvement

    UUM-132342 6000.1.0a2,6000.0.64f1: Single-pass stereo rendering shows only Skybox when entering Play mode

    improvement

    UUM-104889 DirectX12: [Intel] Crash on BufferD3D12::BeginWrite when opening a newly created URP project with DirectX12 set as the default graphics API

    improvement

    UUM-130881 iOS: Rendering freezes and UnityGfxDeviceWorker crash when Show Splash Screen is enabled and Project is built using Unity as a Library

    improvement

    UUM-132677 : Editor memory leak when entering and exiting Play Mode in a blank URP project ### 6000.0.66f2 Release Notes

    fix

    UUM-131803 WebGL: WebGPU: Fix maxComputeWorkGroupSize limit, which was previously set too high and could cause compute shaders to fail on some browsers.

    fix

    UUM-129015 WebGL: WebGPU: Fix compressed texture mip levels having invalid texture data.

    fix

    UUM-129416 URP: Removed unused DebugLevel field from URP asset.

    fix

    UUM-114616 Shaders: Fixed the non deterministic build issue when building shader AssetBundle.

    improvement

    - Graphics: Handle case where vulkan pipeline cache file could be corrupted and cause vkCreatePipelineCache to fail.

    fix

    UUM-107314 Shaders: Fixed Prevent no keywords shader variant errors during DOTS material initialization.

    fix

    UUM-107865 Shadergraph: Fixed Toolbar Icons for Retina Display.

    fix

    UUM-12996 Editor: Terrain trees : Fixed an issue where textures would be created for every non legacy trees, impacting memory.

    fix

    UUM-114439 Shadergraph: Fixed a bug in UGUI Shaders Sample where Custom Toggles would not update properly when in a Toggle Group.

    fix

    UUM-129239 DX12: Make sure that custom scaled HDR backbuffer proxy RTV has the same format as the underlying resource. Now rendering to custom scaled HDR swapchain should not result in a crash.

    fix

    UUM-126235 HDRP: Fixed ClearDispatchIndirect not clearing all indirect arguments when thread count was not 64.

    fix

    UUM-91203 Graphics: Fixed freeze with particle systems when using Vulkan.

    fix

    UUM-119794 Editor: The developer console for XR projects has been disabled due to its very small and unreadable rendering.

    📱Mobile(3)

    fix

    UUM-129367 iOS: Fixed iOS 26 logs appearing as <private> in Console app.

    improvement

    UUM-121453 Metal: [iOS] Screen flashing after the iOS splash screen

    fix

    UUM-111037 Android: On Android XR devices, fixed a hang in FMOD shutdown when calling Application.Quit\(\).

    🌐Networking(1)

    improvement

    - UUM-132182 6000.0.55f1,6000.3.0a4: Crash on RaiseException when creating a multiplayer room while toggling UI

    ⚡Physics(1)

    fix

    UUM-88080 Editor: Fixed raycasting against a capsule collider for the situation where a ray enters the capsule from the top hemisphere and exits from the boundary between the cylinder side and bottom hemisphere. The distance returned from this hit is now the closest hit \(with the top hemisphere\) instead of the exiting hit.

    📜Scripting(2)

    fix

    UUM-128744 Editor: Fixed prefab saving whilst still editing its field in the Prefab Stage.

    improvement

    UUM-125284 IL2CPP: [iOS] [Android] External library generics fail during IL2CPP build

    🖼️UI(3)

    fix

    Editor: Fixed \| UGUI<br> UUM-99716 Fixed issue where Scroll Rect would lose inertia on some display resolutions.

    fix

    UUM-107782 Editor: Fixed the Build Profile Build Button Dropdown to use `PointerDownEvent` instead of `ClickEvent`.

    fix

    UUM-130353 Scene/Game View: Fixed the Camera Overlay that would break when camera name is too long.

    📋Version Control(18)

    improvement

    Version Control: Renamed toolbar dropdown to comply with a 120px max width limit in 6.5.

    improvement

    Version Control: Updated deleted and moved overlay icons.

    improvement

    Version Control: Redesigned the main panel to include a top breadcrumb.

    improvement

    Version Control: Redesigned all the views and dialogs.

    improvement

    Version Control: Moved incoming and shelves notifications to the top bar.

    improvement

    Version Control: Implemented a "clever" truncation of paths.

    improvement

    Version Control: Displayed progress indicator overlaying the view.

    feature

    Version Control: Added specific empty states for Pending/Incoming Changes with filters.

    feature

    Version Control: Added empty state in the history view.

    fix

    UUM-128080 Version Control: Added instructions on how to disable the deep scan of local packages when a timeout occurs and the setting is enabled.

    feature

    Version Control: Added branch name\(s\) to the branch deletion dialog.

    fix

    Version Control: Fixed Project Settings window moving to background when enabling or disabling Unity VCS in the Unity Version Control Settings.

    fix

    Version Control: Fixed the delete shortcut not working on macOS.

    fix

    Version Control: Fixed the menu references to Explorer instead of Finder when running on macOS.

    fix

    Version Control: Fixed Version control icon disappearing when opening a scene or switching Play Mode.

    feature

    Version Control: Added a properties panel for the selected changeset/shelveset.

    feature

    Version Control: Added a cset by cset diff panel in the branches view.

    improvement

    Version Control: Show real indeterminate progress bar.

    View original release notes: Unity 6000.0.66f2 Release Notes