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Unity 2019.4 LTS provides a stable foundation for projects that are in production or about to ship. Unity 2019 LTS stream release has the same feature set as the 2019.3 TECH stream release.

We’re committed to supporting 2019.4 LTS releases with biweekly updates until mid-2021, after which updates will be monthly until May 2022 (two years after the initial release date). These updates will only cover usability fixes aimed at improving the stability of the product to enable users to ship their projects.

Unity 2018.4 is now the legacy LTS; it will be updated monthly until it reaches the end of its support cycle in spring 2021.

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Version: 2018.4

LTS Release 2018.4.28f1

Released: 8 October 2020

We are happy to announce Unity 2018.4.28f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.28f1

  • AI: A NavMeshAgent GameObject teleports to a near NavMeshSurface when collided with a moving NavMeshObstacle (1072945)

  • Audio: Unity crashes in Play Mode at FMOD_Resampler_Linear (928576)

  • Linux: Focus cannot be properly gained on play mode, making keyboard input switch screens (1109908)

  • MacOS: [Mac] Many artifacts can be seen in Scene View when Scene Light is enabled and HDR is on with Metal API and Mac OS X 10.15.4 (1240265)

  • MacOS: [OSX] Shader import in an external exFAT drive crashes Unity (727114)

  • Mobile: [Android] Keyboard doesn't show up when trying to input text in an Input Field with Hide Mobile Input checked on Android 11 (1258071)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Scene Management: Building project when two identical scenes are open crashes the editor (1266194)

  • Scene/Game View: Logging errors from background thread crashes the Editor when Error Pause is enabled (1173657)

  • Shadows/Lights: [Regression] Directional light shadow artefacts in 2020.2.0a21 (1271048)

  • Windows: Cannot activate license within a docker container (1193364)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.28f1 Release Notes

Fixes

  • Asset Bundles: Fixed an edge case with AssetBundle.Contains not returning true for case sensitive paths. (1253270)

  • Build Pipeline: Fixed regression crash with serialized PropertyName field. (1267271)

  • GI: Fixed the issue of progressive lightmapper leaks memory upon subsequent scene switches and bakes. (1178584)

  • Graphics: Fixed an issue with compilation errors for unsupported functions when switching to OpenGLES3. (1203708)

  • Graphics: Fixed to correctly fall back to CPU skinning on feature level D3D10.x. (1269149)

  • Licenses: Fixed an issue where Unity installers could display out-of-date terms of service on Windows. (1271930)

  • Particles: Fixed opaque particle lighting in deferred rendering. (1193339)

  • Profiler: Fixed issue with continuous clicking not working on the profiler timeline gui scroll bars. (1238871)

  • Shaders: Fixed HLSLcc doing bad precision downgrading on some cases. (1228687)

  • Video: Fixed WindowsVideoMedia errors being thrown on standalone builds. (1212382)

  • XR: Removed Android build step to check compatible APIs when ARCore is enabled.

LTS Release 2018.4.27f1

Released: 10 September 2020

We are happy to announce Unity 2018.4.27f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.27f1

  • AI: A NavMeshAgent GameObject teleports to a near NavMeshSurface when collided with a moving NavMeshObstacle (1072945)

  • Audio: Unity crashes in Play Mode at FMOD_Resampler_Linear (928576)

  • MacOS: [Mac] Many artifacts can be seen in Scene View when Scene Light is enabled and HDR is on with Metal API and Mac OS X 10.15.4 (1240265)

  • MacOS: [OSX] Shader import in an external exFAT drive crashes Unity (727114)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Scene Management: Building project when two identical scenes are open crashes the editor (1266194)

  • Scripting: Building a project crashes when a Script Component has serialized array of a type that contains a serialized PropertyName field (1267271)

  • Shader System: [Bug] "min16f as def32" modifier in FXC bytecode not honored when converting to SPIR-V/ESSL (1228687)

  • Windows: Cannot activate license within a docker container (1193364)

  • Windows: Crash on D3D12SwapChain::CreateHWND when CreateSwapChainForHwnd returns E_INVALIDARG (1223896)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.27f1 Release Notes

Fixes

  • Android: Fixed an issue where Utils.ForceCrash() might cause apps to freeze during crashing, and not exit cleanly. (1142726)

  • Android: Fixed Android application freezes when ProgressBar appears on the screen. (1053736)

  • Android: Fixed failing texture compression in Linux Editor. (1222219)

  • Audio: Fixed Streaming AudioClip file handle leaks on sounds that are stopped before having finished the initial buffering of the stream. (1251581)

  • Audio: Fixed to prevent rescale already-scaled rolloff curves when setting. (1152137)

  • Build Pipeline: Fixed an edge case where Textures attempt to load data from an invalid path during build. (1268719)

  • Editor: Added null protection when iterating using ExtendVisibleAsChild. (1083254)

  • Editor: Fixed crash on drag and drop from a closing window. (1221016)

  • Editor: Fixed EventType.MouseDrag events being triggered when cancelling a contextual menu by right clicking or left clicking in a custom window area. (1209976)

  • Graphics: Fixed missing memory barrier when image is repeatedly bound for writing between dispatch calls.

  • Graphics: Fixed SkinnedMeshRenderer.BakeMesh to bake cloth changes into the target Mesh. (1232822)

  • Graphics: Fixed SkinnedMeshRenderer.BakeMesh to bake cloth changes into the target Mesh. (1239074)

  • Graphics: Fixed SplashScreen logo and background textures not being deallocated. (1186265)

  • Graphics: Fixed texture streaming not loading correct mips and not respecting QualitySettings.masterTextureLimit for shadow mask textures. (1254505)

  • IL2CPP: Fixed crash on startup with script debugging enabled with deeply nested generics. (1226831)

  • IL2CPP: Fixed crash on unresolved security attr type. (1251023)

  • IL2CPP: Fixed to avoid warnings from IL2CPP generated code when struct prototype warnings are enabled for C files. (1247033)

  • IL2CPP: Fixed to support IPv6 addresses in Dns.GetHostAddress on Windows. (1258695)

  • IMGUI: Fixed an issue where UGUI Components receive MouseOver events when the Player is in Windowed Mode, focused and the mouse is outside the window. (1250718)

  • iOS: Fixed an issue with the loading of the system font on iOS 13. (1246465)

  • iOS: Fixed to correctly implement touch reset when app resigns active. (1253537)

  • iOS: Fixed unintended storyboard rotation if device changes orientation during initial application loading and autorotate is enabled. (1269547)

  • iOS: Fixed validation errors when creating and using RenderTexture with AA sample count not supported by the device. (1274764)

  • Package Manager: Fixed an outdated parameter name in the UnityEditor.PackageManager.Client.Remove API. (1272162)

  • Prefabs: Fixed crash when using the logging functionality before instantiating prefabs in an enumerator. (1257683)

  • Profiler: Fixed profiler not counting number of draw calls correctly when using CommandBuffer. (1115727)

  • Scripting: Fixed an issue where adding multiple precompiled assemblies with the same name could cause script compilation to get stuck in a loop. (1217707)

  • Shaders: Fixed to allow Shaders with GrabPass to be added to ShaderVariantCollection. (1264467)

  • Universal Windows Platform: Fixed incorrect warning saying that BC7 texture format is not supported on UWP when in fact it is. (1264626)

  • Universal Windows Platform: Fixed Unity crashing after initializing it second time if splashscreen is enabled. (1231532)

LTS Release 2018.4.26f1

Released: 12 August 2020

We are happy to announce Unity 2018.4.26f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.26f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Asset Importers: Crash on VertexDeclarationD3D11::GetInputLayout when importing a broken FBX file (1239074)

  • MacOS: [Mac] Many artifacts can be seen in Scene View when Scene Light is enabled and HDR is on with Metal API and Mac OS X 10.15.4 (1240265)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.26f1 Release Notes

Fixes

  • AI: Resolves an issue where NavMeshQuery::Raycast could get stuck in an infinite loop if the NavMesh contains degenerate polygons. (1254813)

  • Android: Fixed an issue when using blend shapes with GPU skinning on older Adreno devices with OpenGL ES. (1253349)

  • Android: Fixed memory leak when resolving stacktraces on ARM64, for ex., when calling Debug.Log. (1235461)

  • Animation: Fixed animation does not play correctly when Optimized Game Object functionality is used. (1185568)

  • Asset Import: Fixed an issue where clips did not fill the entire timeline in the Animation Inspector. (1202394)

  • Asset Pipeline: Prevent PluginImporter importing from root folders in registered asset folders. (1193341)

  • Audio: Fixed editor crash on changing 'System Sample Rate' when Audio track preview is being played in Timeline window. (1232743)

  • Build Pipeline: Reduce amount of garbage collection performed inside the ContentBuildInterface.

  • Editor: Fixed crashing when loading a project with duplicate scenes. (1069650)

  • Editor: Fixed editor performance regression due to too many GetTreeViewFolderSelection calls. (1244193)

  • Editor: Fixed issue causing clicking on Debug.Log(...) entries in the console window to fail to open source files in various situations. (1181364)

  • Editor: Fixed issue with RuntimeInitializeOnLoadMethodAttribute not working in players builds inside player-only code blocks and inside player-only .asmdef assemblies. (1071599)

  • Editor: Fixed tab dragging on Windows from a secondary monitor where the taskbar is on the left edge of the screen. (1233409)

  • Graphics: Fixed Editor view repaint causing geometry explosion randomly. (1267126)

  • Graphics: Fixed occasional "Invalid memory pointer" error when a GPU instanced mesh particle system is visible. (1256196)

  • Graphics: Fixed warmup of shaders with instancing variant crashing on some graphics api. (1245347)

  • Graphics: Solved performance issues with reflection probe anchors when reloading scenes.

  • IL2CPP: Added handling for enum types with more than 32784 fields. (1258202)

  • IL2CPP: Corrected Array.CreateInstance(Type, int[], int[]) to create an SZ_ARRAY when passed rank of {1} and lower bounds of {0}. (1217556)

  • IL2CPP: Fixed ArgumentException thrown in Socket constructor when using Windows SDK 10.0.19041.0. (1251011)

  • IL2CPP: Fixed ARM64 release build failure that could occur in some circumstances. (1251628)

  • IL2CPP: Fixed managed stacktrace resolving on old Android devices (5.0 and lower), previously stacktrace resolving would fail and would show zero frames, now it should show proper managed stacktrace. (1242285)

  • iOS: Fixed crash in WebCamTexture when permission has been denied to the cameras. (1217018)

  • iOS: Fixed occasional crash on exit coming from iOS calling [UIViewController prefersHomeIndicatorAutoHidden] or [UIViewController preferredScreenEdgesDeferringSystemGestures] after unity have been killed.

  • iOS: Fixed storyboards sometimes still rotating to forbidden orientations on iOS 13+. (1266961)

  • iOS: Fixed unintended storyboard rotation if device changes orientation during initial application loading. (1190428)

  • iOS: Fixed xcode archive validation error when using custom storyboard. (1264496)

  • iOS: On iOS13 it is now possible to customize launchscreen viewcontroller, so it will adhere to unity settings for statusbar appearance and enabled orientations. (1253671)

  • macOS: Fixed issue where a system dialog pops up in batch mode after a previous crash. (1183783)

  • macOS: Hide dock icon in batchmode. (1183783)

  • Particles: Fixed crash when using ParticleSystemRenderer.BakeMesh with Mesh particles and GPU instancing. (1262125)

  • Physics: Fixed an issue with cloth not updating its skinned mesh properly on the first frame it becomes visible. (1254174)

  • Physics: Fixed an issue with cloth where having all particles pinned would cause the the bounds of its related SkinnedMeshRenderer to get corrupted. (1224213)

  • Physics: Fixed an issue with Cloth.SetSelfAndInterCollisionIndices where setting a 0 length List would cause cloth to not clear it's internal array of indices. (1153027)

  • Profiler: Fixed an issue that could cause the Editor to crash when selecting batch thumbnails in the UI Details Profiler module. (1241230)

  • Profiler: Optimized frame stats calculation when selecting a sample in Profiler Window. (967289)

  • Scripting: Debugger improvements and crash fixes. (1249172)

  • Scripting: Fixed an error for async debug of a generic method. (1241280)

  • Scripting: Fixed case where ArrayTypeMismatchException was being thrown incorrectly. (1235903)

  • Scripting: Fixed crash that was occurred when the managed debugger would attempt to load a pdb that had zero sequence points. (1241344)

  • Scripting: Fixed illegal modification of components on GameObject. (1022204)

  • Shaders: Fixed a shader compiler crash when two cbuffers with the same name are declared within the same shader. This now results in a compilation error. (1242162)

  • Shaders: Fixed an issue which was causing Shaders build on newer versions of Unity not to load on an older version within the same Minor Version patch set. (1252232)

  • Shaders: Fixed an issue which would causes shader requirements not to be serialised correctly.

  • Text: Fixed for GetPathsToOSFonts() not returning any valid font file paths on iOS. (1262883)

  • TextCore: Fixed potential Array Out Of Bounds error when fetching Glyph Pair Adjustment records. (1262879)

  • TextMeshPro: Fixed for GetPathsToOSFonts() not returning any valid font file paths on iOS. (1262883)

  • TextMeshPro: Fixed potential Array Out Of Bounds error when fetching Glyph Pair Adjustment records. (1262879)

  • UI: Fixed the issue where the vertices were not stripped for rich text in multi line. (1182818)

  • XR: Added build error when attempting to build ARCore with invalid Graphics API targets. (1129305)

  • XR: Fixed PhotoCaptureFrame apis when using Hololens 2. (1207427)

  • XR: Recenters the Headset when Oculus' Reset View is called from the OS. (1159322)

LTS Release 2018.4.25f1

Released: 24 July 2020

We are happy to announce Unity 2018.4.25f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.25f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Asset Importers: Crash on VertexDeclarationD3D11::GetInputLayout when importing a broken FBX file (1239074)

  • Audio: Editor crashes on changing 'System Sample Rate' when Audio track preview is being played in Timeline window (1232743)

  • MacOS: [Mac] Many artifacts can be seen in Scene View when Scene Light is enabled and HDR is on with Metal API and Mac OS X 10.15.4 (1240265)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Profiling: Performance issue in "Profiler" UI with increasing number of events (967289)

  • Scene Management: Unity crashes when opening a project with two identical scenes, one of them being unloaded (1069650)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.25f1 Release Notes

Fixes

  • Android: Allow Android's OS setting to force rendering outside safe area. (1223467)

  • Android: Fix Cutout is calculated incorrectly when device is not in full screen mode. (1204141)

  • Android: Fixed an issue where Gradle builds could fail if a settings.gradle file exists in the root of the project (1164013)

  • Animation: Fixed crash when using binary2text on *.bundle with Playable Director (1184027)

  • Asset Bundles: Fixed handling of shaders in Asset Bundles to make them more deterministic (1255960, 1255970)

  • Asset Import: Fixed assert errors of memory leak when EditorSceneManager.NewScene is called in OnPostprocessAllAssets. (1249386)

  • Editor: Fire SceneOpening/SceneOpened callbacks when scene reloaded (1147043)

  • Editor: Fixed game view flickering when resizing it while frame debugger is enabled. (1231978)

  • Editor: Fixed not being able to build with Linear Color Space after resetting Player Settings (1163436)

  • Editor: Fixed the Shuriken Icon issue in inspector. (1198543)

  • Graphics: Fix incorrect uploading of builtin shader parameters such as view, proj, viewProj matrices in some rare situations on Nintendo Switch.

  • Graphics: Fix issue where SRP would allocate memory each frame (1165372)

  • Graphics: Fixed crash when using lines/trails with command buffers. (1216216)

  • Graphics: Fixed Visible AO artifact on XBOX ONE (1167455)

  • IL2CPP: Fixed crash when null is thrown in a try block (1248335)

  • IL2CPP: Generate less source code for managed debugging. (1205136)

  • IL2CPP: Throw a System.IO.FileNotFoundException exception when a file is not found for UWP builds. (1248611)

  • iOS: Fixed iPhone bluetooth controller buttons not registering input (1241180)

  • macOS: Fixed issue where the color picker would select the wrong color when using a non-sRGB color profile on your monitor. (1218845)

  • Mobile: Prevent iOS/tvOS simulator builds from being appended with device builds (1216005)

  • Particles: Disabled Particle System "Open In Editor" button when editing a preset. (1198545)

  • Particles: Fixed deselect when clicking a preset ParticleSystem icon. (1198545)

  • Particles: Fixed sub-emitters using the wrong position when first emitting. (1247219)

  • Scripting: Fixed the editor crash with popup "The file 'MemoryStream' is corrupted!" (1244125)

  • Switch: Fixed an issue where tightly packed neighboring compute constants overwrite each other when set. (1225604)

  • Switch: Fixed support for rendering into cubemap faces (1171657)

  • UI: Dirty the canvas batch when a element is enabled. This will ensure it gets put back into the render order (1077708)

  • UI: Fixed UI Flickers in Game View when Camera.Render is Selected in the Frame Debugger (1172637)

  • XR: Fixed order of single-pass instancing shader variables for gles3 (1187259)

Changes

  • Package Manager: Updated the Package Manager UI package to 2.0.13.

LTS Release 2018.4.24f1

Released: 3 July 2020

We are happy to announce Unity 2018.4.24f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.24f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Asset Importers: Crash on VertexDeclarationD3D11::GetInputLayout when importing a broken FBX file (1239074)

  • Cloth: Cloth has graphical artifacts when an object moves out of the camera (1254174)

  • Mono: Crash on buffer_add_value_full when debugging with code editor attached (1249172)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Shuriken: Crash on CreateDirect3D11SurfaceFromDXGISurface when calling DrawRenderer with a Trail Renderer (1216216)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.24f1 Release Notes

Fixes

  • 2D: [Windows] Unity crashes when packing big amount of atlases. (1219643)

  • Android: Fix occasional crash when aborting UnityWebRequest. (1240281)

  • Android: Fix the issue that DIR_UNITYPROJECT/DIR_GRADLEPROJECT are using the wrong '\' director separator on windows. (1088160)

  • Android: Fixed an issue where master sprite atlases did not use the specified ETC2 fallback format. (1175291)

  • Android: Fixed freeze on Galaxy S20 when using OpenGL ES GPU skinning with blend shapes. (1236183)

  • Android: Fixes Screen.currentResolution reporting incorrect values after change in orientation. (1246822)

  • Android: Unity analytics does not get advertising ID anymore.

  • Animation: Fixed a crash when disconnecting an animation playable and reconnecting it later in a playable graph. (1223570)

  • Asset Import: Fixed SpriteAtlas packing issue when texture importers having been badly migrated from old version of Unity and have a compression quality of -1 in their settings. (1222441)

  • Asset Import: Significantly reduces import time of FBX models, particularly for those containing large meshes. (1219764)

  • Build Pipeline: Added support for baked collision mesh writing in the Scriptable Build Pipeline. (1234924)

  • Build Pipeline: Fixed cache miss due to non-deterministic hash generation for BuildReferenceMap and BuildUsageTagSet classes. (1227574)

  • Build Pipeline: Fixed rare race condition causes error message when calling AssetBundle.LoadAsset and then immediately unloading the bundle. (1181323)

  • Build Pipeline: Fixed the incorrect file header size outputted in the Editor.log after a build. (1209767)

  • CodeEditor: Built-in attributes for JetBrains Annotations have been modernized and include all new annotations (minus ASP/Razor attributes which have no relevance to Unity).For more info on these attributes, see https://www.jetbrains.com/help/resharper/Code_Analysis__Code_Annotations.html. (1208183)

  • Editor: Fixed an issue where a console error is thrown when holding the control/command key and dragging objects in the hierarchy window. (1222971)

  • Editor: Fixed an issue with Screen Space and World Space Cameras not rendering when frame debugger is enabled for Standalone player. (1222579)

  • Editor: Fixed issue where you could have invalid characters in your bundle id. (1140627)

  • Editor: Stop sending gyro settings to Unity Remote if nothing's changed. (1206221)

  • Graphics: Fixed issue where a Canvas in Screen space camera mode has a 0 height when a non standard custom projection matrix is set. (1203097)

  • Graphics: Fixed memory leak when using -batchmode command line argument and particles, lines or trails. (1224501)

  • Graphics: Fixed necessary memory barriers generated when UAVs are bound as read-only on Nintendo Switch.

  • IL2CPP: Correct the implementation of ConcurrentBag so that it works with ETW managed code stripping. (1230447)

  • iOS: Check for Application.RequestAdvertisingIdentifierAsync too when determining if ads api is used. (1242276)

  • iOS: Deleted LaunchImage folder when doing iOS build. (1240800)

  • iOS: Fixed an issue that prevents native windows from overlapping the Unity view. (1247256)

  • iOS: Fixed iOS Achievements Callback GameCenter Crash. (1087475)

  • iOS: fixed ReplayKit.APIAvailable returning false on the first call. (1233569)

  • iOS: Fixed showing Broadcasting ViewController on phones in landscape orientation. (1232967)

  • iOS: Fixed UnauthorizedAccessException: Access to the path '/Applications/2019.1/Unity 2019.1.0a12/PlaybackEngines/iOSSupport/Trampoline/build/SharedPrecompiledHeaders' is denied. (1108549)

  • iOS: Launch Images are no longer supported, as per new Apple guidelines. (1194762)

  • macOS: Fixed issue where a system dialog pops up in batch mode after a previous crash. (1183783)

  • macOS: Fixed unreadable text in macOS installer in dark mode. (1210046)

  • Mobile: Fixed CoreLocation framework being falsely shown as "default" in plugin importer (moved to "frequent" list). (1222455)

  • Mobile: Fixed horizontal axis input from MFI controllers on iOS 13. (1239980)

  • Mobile: Fixed iPad Spotlight icon name label in PlayerSettings. (1239020)

  • Package Manager: Fixed a security issue.

  • Particles: Fix crash/visual corruption when using GPU Instanced mesh particles. (1230566)

  • Particles: Fixed applying a preset in the MinMaxCurve pop-out editor window. (1237306)

  • Physics: Fixed an issue where calling SetEnabledFading(false) for the first time would cause the cloth instance to immediately snap into place and not disable properly. (1170627)

  • Physics: Fixed an issue where cloth constraints would reset when applying a mesh with the same number of vertices. (1242446)

  • Prefabs: Fixed references could be lost if a prefab was edited and saved after a player build. (1238280)

  • Prefabs: References following an array of a class that only contains a single boolean is now correctly remapped when the prefab is instantiated. (1199466)

  • Prefabs: Self-reference to variant via property overrride is now correctly mapped to an internal reference. (1233462)

  • Scripting: Changed behavior on debugger-agent, if we can't parse new behavior we now return invalid_argument instead of asserting. (1197204)

  • Scripting: Fixed - Added support for dialects of Chinese language in Application.systemLanguage. (1206732)

  • Scripting: Fixed an issue where FileSystemWatcher was not working on Windows when targeting .NET Standard 2.0 API Compatibility Level. (1066732)

  • Scripting: Fixed Catalina OSX returning 0 for disk space on read only drives. (1221933)

  • Scripting: Fixed crash in debugger during enter playmode. (1013579)

  • Scripting: Fixed crash that occurred during domain reload that was caused by image set data being stored in the wrong image. (1224837)

  • Scripting: Fixed intermittent "TypeLoadException: Recursive type definition detected" that was being thrown on playmode start. (1191002)

  • Scripting: Fixed race condition that would cause a hang when using threaded C# sockets. (1028819)

  • Scripting: Fixed unnecessary allocation in Enum.HasFlags. (1211643)

  • Scripting: [Debugger] Fixed crash when there is a generic struct with a field that is an enumerator. (1210416)

  • Services: Fix crash in CrashReporting::LogBuffer::RecordLogMessage when called from multiple background threads simultaneously. (1228264)

  • TextCore: Added Multi-Threading to Font Asset Creation process in the Editor.

  • TextCore: Fixed incorrect Vertical Alignment of Glyphs when using SDF8, SDF16 and SDF32 modes. (1249493)

  • TextCore: Fixed kerning values incorrect when using SDF8, SDF16 and SDF32 Render modes. (1249497)

  • TextCore: Fixed memory allocation issue when retrieving glyph pair adjustment records. (1249491)

  • TextCore: FontEngine.GetGlyphPairAdjustmentTable OutOfMemoryException. (1249491)

  • TextCore: Incorrect Vertical Alignment of Glyphs when using SDF8, SDF16 and SDF32 modes. (1249493)

  • TextMeshPro: - Updated FontEngine to improve performance as well as reduce memory allocations.

    • Fixed Font Asset Creation process not using Multi-Threading in the Editor when using SDF8, SDF16 and SDF32 modes.
    • Fixed memory allocation issue when retrieving glyph adjustment pairs.
    • Fixed PairAdjustmentRecords returning a value of infinity with certain font files.
    • Fixed incorrect PairAdjustmentValues when using SDF8, SDF16 and SDF32 modes.
    • SDF, SDF8, SDF16 and SDF32 modes no longer use hinting to improve glyph sampling at low point size.

  • Video: Reorganized looping logic to avoid frame reordering that was leading to confusion when deciding what frame is closest to current player clock time. (1198586)

  • XR: Fixed a crash during shutdown on Android apps using Google's ARCore SDK for Unity. (1197049)

  • XR: Fixed latency increase caused by prediction fixes. (1254226)

  • XR: Linux Editor no longer attempts to load Resonance Audio library when running on machines that don't support SSE 4.1 instructions. (1207680)

Improvements

  • Android: Documentation clarified for Application.targetFrameRate behavior on mobile devices.

Features

  • Android: Allow to use a custom Gradle version.

LTS Release 2018.4.23f1

Released: 19 May 2020

We are happy to announce Unity 2018.4.23f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.23f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Graphics - General: 'task.rasterData.vertexBuffer == NULL' errors when using a Particle System (1226357)

  • OpenGL: Crash on BufferManagerGLES::AcquireBuffer when in Play Mode (1230566)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Scene Management: Prefab Variant Transform fileId changes (1238280)

  • Shuriken: Crash on CreateDirect3D11SurfaceFromDXGISurface when calling DrawRenderer with a Trail Renderer (1216216)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.23f1 Release Notes

Fixes

  • Android: Fixed an issue where Android keyboard not reporting LostFocus state correctly. (1229827)

  • Asset Import: Changed ProcessAssetBundleEntries() to batch load assets using PersistenceManager rather than loading individually using PPTRs. (1184551)

  • Asset Import: Fixed an issue where shadows appear segmented at specific angles when using physical camera with a large difference between sensor aspect ratio and screen aspect ratio. (1211431)

  • Asset Import: Fixed an issue where TextureImporter was dirtied when creating a preset. (1242249)

  • Asset Import: Texture Importer builds all targets before first enable. (1231227)

  • Asset Pipeline: Fixed a sorting issue that was causing indeterminism in Content Update Pipeline. (1197035)

  • Editor: Fixed an issue where smart rounding was causing problems with large scale values with the Rect tool. (1225799)

  • Editor: Fixed an issue where SyntaxTree namespace cannot be referenced. (1205800)

  • Graphics: Fixed a memory leak when disabling texture mip streaming (after enabled). (1227997)

  • Graphics: Fixed a race condition when using Dynamic Batching and Graphics Jobs together. (1221653)

  • Graphics: Fixes an issue where graphics settings were written to boot.config incorrectly. (1236936)

  • Physics: Fixed an issue where having a cloth as part of a prefab would endlessly attempt to update the prefab. (1195095)

  • Physics: Fixed an issue with cloth where it would corrupt transform changed state. (1187252)

  • Prefabs: Fixed a slow scene deserialization, when scene contains broken prefab instances with many duplicate overrides. (1228147)

  • Prefabs: Fixed an issue where the Hierarchy window Create ([+]) dropdown menu item "Create Empty Child" would, in Prefab Mode, place the created child under the Prefab root rather than under the selected object. (1185434)

  • Profiler: Fixed inability to select reoccurring samples in Raw Hierarchy. (1093368)

  • Scripting: Fixed a batch mode issue, where a repeating or infinite loop coroutine does not resume execution after a period of time. (1201708)

  • Security: Fixed UNET vulnerabilities. (CVE-2020-12630) (CVE-2020-12631)

  • Video: Fixed an issue where video-heavy project does not get successfully imported when launching the project in batchmode. (1172957)

Improvements

  • Shaders: UNITY_OLD_PREPROCESSOR macro is now defined for all shader stages except for ray tracing.

LTS Release 2018.4.22f1

Released: 24 April 2020

We are happy to announce Unity 2018.4.22f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.22f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Graphics - General: 'task.rasterData.vertexBuffer == NULL' errors when using a Particle System (1226357)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Scene Management: Prefab Variant Transform fileId changes (1238280)

  • Scene Management: Unity Editor freezes/crashes when opening a specific Scene (1228147)

  • Shuriken: Crash on CreateDirect3D11SurfaceFromDXGISurface when calling DrawRenderer with a Trail Renderer (1216216)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.22f1 Release Notes

Fixes

  • Android: Fixed a crash after executing Application.Quit() when using IL2CPP.

  • Build Pipeline: Fixed an issue which was preventing mesh compression on iphone when building with the scriptable build pipeline. (1222846)

  • Graphics: Removed some unnecessary warnings. (1193536)

  • iOS: Fixed an issue where a custom storyboard might not be found at runtime. (1225171)

  • MacOS: Fixed an issue that prevented the Game Center UI from showing on macOS. (1215479)

  • Profiler: Fixed an Editor crash when loading corrupted profiler data. (1131782)

  • Universal Windows Platform: Enabled the Lightmap Encoding options for UWP player settings. (1225842)

LTS Release 2018.4.21f1

Released: 9 April 2020

We are happy to announce Unity 2018.4.21f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.21f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Profiling: Editor crashes when loading profiler file with memcpy stacktrace (1131782)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.21f1 Release Notes

Fixes

  • Android: Fixed a crash when using GraphicsJobs with Vulkan on Adreno 5xx. (1167283)

  • Android: Fixed an issue where warning was being logged if app aborted during a UnityWebRequest. (1223723)

  • Android: Fixed an issue with overwriting gradle.properties file with a gradle template file in Plugins/Android. (1141877)

  • Audio: AudioSource.GetSpatializerFloat and AudioSource.SetSpatializerFloat can now be called successfully before an AudioSource is first played. (1226913)

  • Graphics: Fixed a crash where instancing properties are absent from the MaterialPropertyBlock object sent to DrawMeshInstanced calls. Fixed path-finding bug in which floating point errors would cause agents to take potentially large, spurious detours. (1115627)

  • Graphics: Fixed an exception while baking light, when the scene objects are being moved. (1128734)

  • Graphics: Fixed an issue with DX11 blit operations crashing when shader recompilation is triggered. (1221358)

  • IL2CPP: Corrected set the value of by reference parameters in the caller for some generic virtual method call cases. (1212919)

  • IL2CPP: Fixed an error while processing the Unity.Entities assembly due to incorrect handling of a generic virtual method on a generic type. (1176672)

  • IL2CPP: Generate less source code for managed debugging. (1205136)

  • iOS: Fixed an issue where the crash reporter was crashing when you breakpoint an iOS crash. (1168277)

  • iOS: Fixed a crash when trying to use metal on simulator (this is supported starting with unity 2020.1). (1227049)

  • iOS: Fixed an issue with copy across referenced images from the launch screen storyboard during build times. (1187103)

  • iOS: Screen.SafeArea should be reported correctly after the app is paused and it's orientation is changed. (1190735)

  • iOS: Screen.SafeArea should no longer reset to zeros after custom view is presented on iOS 13. (1190454)

  • Particles: Fixed an issue where particle lights being re-rendered over multiple frames. (1233190)

  • Prefabs: Fixed a null reference exception is thrown when applying modified Button UI component property to prefab. (1172835)

  • Profiler: Fixed an issue where Profiler Window not remembering the view type of CPU module across sessions. (1231941)

  • Profiler: Fixed Performance decrease in EditorOverhead using Deep Profile. (1051094)

  • Scripting: Fixed a possible crash caused by race condition during startup when the script debugger and profiler systems are enabled.

  • Video: Application.Quit hangs the application after VideoPlayer.prepare is called on a disabled GameObject. (1185216)

  • Video: Fixed an issue where disabled VideoPlayer warning shows up when VideoClip field gets set to null in OnDestroy() method. (1206210)

  • Video: Fixed an issue where hang on quit after failing to load large number of Video Clips from URL at once. (1197716)

  • XR: Fixed an issue where unstable video and texture buffer resources when using Windows Mixed Reality. (1209909)

LTS Release 2018.4.20f1

Released: 27 March 2020

We are happy to announce Unity 2018.4.20f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.20f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • MacOS: [Lighting]Errors in console on changing editor visualization mode to realtime GI if there is a particle system in scene. (1106901)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Profiling: Editor crashes when loading profiler file with memcpy stacktrace (1131782)

  • Profiling: Performance decrease in EditorOverhead using Deep Profile (1051094)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.20f1 Release Notes

Fixes

  • AI: Fixed a path-finding bug in which floating point errors would cause agents to take potentially large, spurious detours. (977653)

  • Android: Fixed a crash during shutdown when starting a Java thread with a C# thread. (1224810)

  • Android: Fixed activity pause timeout warnings. (1223705)

  • Asset Import: Added AssetDatabase.DisallowAutoRefresh and AssetDatabase.AllowAutoRefresh to the C# API. (1173031)

  • Asset Pipeline: Fixed an issue where AssetBundle Recompression not verifying the CRC of bundle contents when requested. (1195075)

  • Asset Pipeline: Optimised copying an asset, so that a refresh of the asset database is not triggered. (1179856)

  • Editor: Fixed a crash when calling MonoImporter.GetExecutionOrder(null). (1181615)

  • Graphics: Avoid rebinding the texture and polute state if the texture target is unknown. (1199990)

  • Graphics: Fixed a crash in SkinnedMeshRenderer: make sure the cached mesh is valid before using it. (1183992)

  • Graphics: Fixed an issue loading shaders from a 2017.4 authored asset bundle into more recent Unity versions. (1195317)

  • Graphics: Fixed an issue that can cause increased draw call count when using static batching. (1098752)

  • iOS: Fixed an issue with profiler support for iPhone XR/XS/XS Max and above. (1133479)

  • iOS: Fixed Unity Remote errors when using iPhone XR/XS/XS Max and above. (1184243)

  • macOS: IME works in both editor and player is the proper location. (1178930)

  • Prefabs: Fixed an issue where editor entering infinite loop on certain bad prefabs. The bad prefabs are now patched during load. (1196082)

  • Prefabs: Fixed an issue with applying prefab override from a scene where the MonoBehaviour lives in a namespace and has FormerlySerializeAs on the fields. (1114464)

  • Profiler: Added message indicating that Profiler Modules need to be activated to profile. (1197721)

  • Scripting: Fixed an issue that raised on iOS where the player would crash when shutting down. (1145982)

  • UI: Fixed an issue with IME properly. (1178930)

  • Version Control: Fixed an issues with Unity auto refresh and version control. (1191378)

  • XR: Fixed a crash when you connect to a Hololens 2 using the HolographicRemoting scripting api and then enable Windows Mixed Reality.

API Changes

  • 2D: Added: Added SortingGroup.UpdateAllSortingGroups to allow users to immediately update SortingGroups instead of waiting for LateUpdate. (1202432)

Improvements

  • Asset Import: Added AssetDatabase.DisallowAutoRefresh and AssetDatabase.AllowAutoRefresh to the C# API. (1173031)

LTS Release 2018.4.19f1

Released: 13 March 2020

We are happy to announce Unity 2018.4.19f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

Component Installers Windows

Component Installers Mac

Component Installers Linux

Known Issues in 2018.4.19f1

  • Animation: Animator.Update CPU time spikes when multiple animations are playing (1184690)

  • Package Manager: Immutable packages altered by the API Updater are reverted to their original state when packages are resolved, which can lead to slower import performance in that context.

  • Profiling: Editor crashes when loading profiler file with memcpy stacktrace (1131782)

  • Profiling: Performance decrease in EditorOverhead using Deep Profile (1051094)

  • Scene Management: Prefabs lose their values if scripts are removed then reintroduced (1216914)

  • macOS: If the Android Tools are not installed through the Hub, macOS 10.15 (Catalina) default security settings will prevent the Android NDK binaries being executed. These settings have to be changed or a signed Android NDK (r16b) will be needed to build Android. More information here: https://developer.android.com/ndk/downloads/older_releases.

2018.4.19f1 Release Notes

Fixes

  • Apple TV: Fixed an issue where "Menu" button on Siri Remote returns "Joystick1Button19" instead of "Joystick1Button0". (1214948)

  • Editor: Fixed an issue where Console Window was not receiving Logs from a built Player until the connection drop-down is clicked. (1224614)

  • Editor: Fixed an issue where for event drawer not finding the event types present on data members parent types. (1211380)

  • Editor: Improved performance over large numbers of objects with RectTransforms, scene navigation is now very smooth. However actual picking is still very slow (no change). (1165982)

  • iOS: No longer include code using AdSupport unless user explicitly uses APi that needs it. (1219457)

  • Particles: Added NativeArray overloads to SetParticles and GetParticles.

  • Particles: Fixed a crash that occurred when loading asset bundles containing legacy particles in Unity 2018 or newer. (1223000)

  • Profiler: Fixed a crash that occurred when loading Profiler data captured in newer Unity versions. (1124534)

  • Profiler: Fixed an issue where charts not drawing data for the last 2 frames. (1206861)

  • Profiler: Fixed an issue where current frame being inaccessible via keyboard arrow navigation. (1206860)

  • Shaders: Fixed an issue where surface shader writes into o.Emission channel were ignored in some cases. (1217823)

  • UI Elements: Fixed a crash that occurred when importing prefabs with broken Canvas. (1041934)

  • Windows: Fixed an issue where race condition in plugin loading code when P/Invoking into libraries from multiple threads at once. (1192915)

  • XR: Fixed a crash that occurred when exiting Play Mode in XR related to particle system with mesh instances. (1163721)

  • XR: Fixed a frame timing issue causing incorrect poses on Windows Mixed Reality. (1221956)

  • XR: Updated minimum version of Windows Mixed Reality package.

API Changes

  • Particles: Added: Added NativeArray overloads to SetParticles and GetParticles

Improvements

  • Editor: Greatly improves performance over large numbers of objects with RectTransforms, scene navigation is now very smooth. However actual picking is still very slow (no change). (1165982)

  • XR: Updated minimum version of Windows Mixed Reality package.

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