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Unity 2020 LTS provides a stable foundation for projects that are in production or about to ship. Unity 2020 LTS stream release has the same feature set as the 2020.2 Tech stream release.

We’re committed to supporting 2020.3 LTS releases with biweekly updates until mid-2022, after which updates will be monthly until March 2023 (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 2019.4 is now the legacy LTS; it will be updated monthly until it reaches the end of its support cycle in spring 2022.

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Version: All

LTS Release 2019.4.0f1

Released: 9 June 2020

We are happy to announce Unity 2019.4.0f1. 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 2019.4.0f1

  • Animation: [macOS] Inconsistent crash in objc_msgSend/objc_retain when previewing Animations with Animator window open (1242026)

  • Global Illumination: [URP] Transparencies are ignored because URP uses _BaseMap as main texture identifier (1246262)

  • Global Illumination: [macOS] BugReporter doesn't get invoked when the project crashes (1219458)

  • IAP: Disabling and re-enabling IAP in services window throws multiple errors about failing to find assemblies (1193774)

  • IAP: Unity purchasing gives error on project upgrade due to failing to find UnityEngine.UI assembly (1193773)

  • Mono: Crash with various stack traces when exiting Play Mode after recompiling scripts (1238859)

  • Physics: Crash after "[Physics.PhysX] Foundation: Invalid registration detected" errors show up when using Physics.BakeMesh (1200588)

  • Scene/Game View: Line Renderer Edit Points in Scene View gizmo is not responsive in the Scene View (1244789)

  • Scripting: Entering Playmode with Scene Reload disabled crashes when DestroyImmediate is used in OnDisable (1250550)

  • Scripting: [SerializeReference] non-serialized Initialized fields lose their values when entering and during play mode. (1193322)

  • Scripting: [SerializedField] fields produce "Field is never assigned to..." warning (1080427)

  • Version Control: Temp/Package files are added to VCS after installing any package and having Automatic Add on (1250933)

  • Vulkan: Crash on vk_optimusGetInstanceProcAddr when double clicking shader's Compiled Code drop down arrow (1248909)

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

2019.4.0f1 Release Notes (since 2019.3.15f1)

Fixes

  • 2D: Use correct starting Z depth for IsometricZAsY Grids when calculating camera bounds for TilemapRenderer (1237963)

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

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

  • Animation: Fixed a bug where selected GameObjects are deleted when entering Play Mode and "Failed to unpersist" error is thrown (1222757)

  • Asset Import: Adding multiple MonoBehaviour scripts on the same GameObject using OnPostprocessModel during a ModelImporter import does not log uniqueness warning on new assets. It still does log the message on already imported assets because all references to it would be lost otherwise. (1176912)

  • Asset Import: Fixed an issue where files authored in earlier versions, which reference objects imported by scripted importers, might lose the link to those files (1189088)

  • Asset Import: Fixed an issue where upgrading a project to Asset Database v2 could throw 'unknown script' errors

  • Editor: Fixed an Editor issue on Windows where while in playmode and paused one or more CPUs would be utilized at 100%. (1219619)

  • Editor: Fixed an issue where Editor crashes when Undo is performed. (1242926)

  • GI: Fixed GI baking in batchmode when using Scriptable Render Pipelines. (1211448)

  • GI: Fixed the lightmapper sometimes getting stuck, especially on undo after moving instances or changing resolutions. (1144403)

  • Graphics: Fixed crash on VFXParticleSystem::RenderQuadIndirectCommand right before playing a Particle Quad in Play mode (1232862)

  • Graphics: Fixed crash when trying to load RenderDoc while using OpenGL / DirectX12 Graphics API Backend. (1149494)

  • Graphics: Fixed Graphics.DrawProcedural crash on old (pre-SSE4.2) CPUs, when using DX11 or DX12. (1241288)

  • Graphics: Fixes a crash when requesting read back into NativeArray multiple times, or using a very small NativeArray. (1194440)

  • IL2CPP: Fix JSON exception when building project with large number of scenes (1240780)

  • IL2CPP: GetIPProperties().GatewayAddresses now properly runs on MacOS (1226597)

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

  • Linux: Fixed Linux Editor's main window incorrectly scrolling the main window's contents when the mouse scrollwheel is used. (1130242)

  • Linux: Fixed scroll mouse events not being parsed in the editor when the mouse cursor lock mode is set to locked. (1219781)

  • macOS: Resolved crash that would happen when baking lighting using the GPU progressive lightmapper. (1160419)

  • Scripting: Fix issue with AnimatorController not included when strip engine code is enabled (1156093)

  • Scripting: Prevent statistics logging errors from impacting customers (1241238)

  • Serialization: Make sure that we create managed instances that have empty classes when deserializing YAML data (1183547)

  • Shaders: Fixed an issue with local keywords when using fallback shaders. (1238838)

  • Shaders: Fixed broken shader variant tracking in the editor. (1169786)

  • XR: Set the appropriate Vulkan usage flag for the fragment density map.

Changes

  • Multiplayer: Updated com.unity.multiplayer-hlapi package version from 1.0.4 to 1.0.6, automatically added when upgrading older projects (1152421, 1243934)

  • XR: XRDevice.isPresent has been flagged as Obsolete and will be removed in the future. (1215467)

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 2017.4.40f1

Released: 19 May 2020

We are happy to announce Unity 2017.4.40f1. 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 2017.4.40f1

  • Asset Bundles: Loading.LockPersistentManager object lock impacts performance during AssetBundle.LoadAssetAsync operation (827299)

2017.4.40f1 Release Notes

Fixes

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

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

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

  • iOS: Fixed UIApplicationExitsOnSuspend is deprecated in iOS 13.

  • macOS: Fixed case where notarization would complain about mono being compiled with a older macOS SDk thus not allowing you to notarize your game.

  • macOS: Fixed issue where projects with UnityScript would not compile on macOS 10.15 (1191344)

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

Improvements

  • iOS: Changed builtin xib launch screens to storyboard

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 2017.4.39f1

Released: 3 April 2020

We are happy to announce Unity 2017.4.39f1. 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 2017.4.39f1

  • Asset Bundles: Loading.LockPersistentManager object lock impacts performance during AssetBundle.LoadAssetAsync operation (827299)

  • iOS: Apps with UIApplicationExitsOnSuspend in info.plist failing to pass Apple Store validation (1160614)

  • uGUI: RectTransofrm resets it's coordinates to zero when selecting "Apply" on prefab even if no changes were made (964111)

2017.4.39f1 Release Notes

Fixes

  • Android: Fixed on-screen keyboard being closed when focusing different InputField. (1180393)

  • Asset Import: Fixed issue where setting EditorCurveBinding.type to a custom component binds to "MonoBehavior" instead of the derived class. (1201584)

  • iOS: Fixed an iOS 8 player startup crash in CreateSystemRenderingSurfaceMTL.

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 2017.4.38f1

Released: 20 March 2020

We are happy to announce Unity 2017.4.38f1. 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 2017.4.38f1

  • Asset Bundles: Loading.LockPersistentManager object lock impacts performance during AssetBundle.LoadAssetAsync operation (827299)

  • iOS: Apps with UIApplicationExitsOnSuspend in info.plist failing to pass Apple Store validation (1160614)

  • uGUI: RectTransofrm resets it's coordinates to zero when selecting "Apply" on prefab even if no changes were made (964111)

2017.4.38f1 Release Notes

Fixes

  • Android: Fixed an issue where a settings.gradle file in the Unity project folder could cause build errors. (1164013)

  • Android: Fixed poor physics performance on ARM64 on certain devices with power mode disabled. (1186295)

  • Android: Fixed problem with platformBuildVersionCode and platformBuildVersionName in manifest (1118325)

  • Audio: Fixed TempJob allocation warnings when using Timeline with AudioSource. (1141919)

  • Graphics: Fixed issue where "GetGfxDevice() should only be called from main thread" errors are thrown and crashes in Play Mode later on. (1181825)

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

  • iOS: Launch Screen storyboards are validated to ensure that they have the correct settings to be used as a launch screen. (1212014)

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

  • Player: Fixed a crash caused by unloading a GameObject whose transform has a persistent parent. (1169647)

  • XR: Fixed crash due to missing WorldAnchor store managed class in non-UWP players. (1212118)

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

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.

LTS Release 2018.4.18f1

Released: 28 February 2020

We are happy to announce Unity 2018.4.18f1. 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 2018.4.18f1

  • 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.

  • 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.

  • tvOS: "Menu" button on Siri Remote returns "Joystick1Button19" instead of "Joystick1Button0" (1214948)

2018.4.18f1 Release Notes

Fixes

  • 2D: Fixed a crash when selecting SpriteRenderer with tiling enabled in SceneView. (1211482)

  • 2D: Fixed an exception when accessing ISpriteEditorDataProvider during AssetPostProcessor on new asset. (1215686)

  • Analytics: Fixed a deprecated warning issue on WebGL platform. (1190301)

  • Android: Added maxAspectRatio to manifest only when targetting API 26 or higher. (1215022)

  • Android: Fixed an issue causing minimum and target API levels UI to get stuck at "Getting API levels...". (1214796)

  • Android: Fixed an issue where on screen keyboard is closed when focusing different InputField. (1180393)

  • Asset Bundles: Fixed an issue with assertion when building multiple scene asset bundles with data analytics enabled. (1203242)

  • Asset Import: Fixed an issue where setting EditorCurveBinding.type to a custom component binds to "MonoBehavior" instead of the derived class. (1201584)

  • Asset Pipeline: Fixed an issue where asset bundles could fail to load when using async loading methods. (1215446)

  • Asset Pipeline: Fixed an issue where calling SaveAssets() in play mode could cause an exception to be thrown. (1215975)

  • Editor: Fixed a crash which happens when the editor is launched in -nographics mode. (1199974)

  • Editor: Fixed a Unity crash for enum popup. (1209597)

  • Editor: Fixed an issue with Update Check dialog to avoid recommending an older version than the one is used. (833402)

  • Editor: Fixed an issue with Update Inspectors when using 'Recompile After Finished Playing'. (1196494)

  • GI: Fixed an issue where rendering of light-probed GI contributors not receiving any occlusion from probes outside of the configured shadow distance. (1174524)

  • Graphics: Fixed an issue were on one camera CullingGroup.QueryIndices doesn't work. Cameras are in the same location and using two CullingGroups with the same settings. (1181967)

  • Graphics: Fixed an issue where remove stall in Canvas.BuildBatch profile marker waiting for Geometry Jobs to finish. (1178300)

  • Graphics: Fixed an issue with GPU instancing on PowerVR devices. (1156362)

  • IL2CPP: Corrected the behavior of the InitMessage icall. (1208473)

  • IL2CPP: Fixed a crash with message box "GetThreadContext failed" when using .NET 4.x scripting runtime.

  • IL2CPP: Fixed an issue with invoking public static methods and instantiating public classes that were defined in managed .winmd files.

  • IL2CPP: IL2CPP will now automatically initialize when calling into converted managed .winmd files from native code even if Unity engine hasn't been initialized yet. (1200489)

  • iOS: Launch Screen storyboards are validated to ensure that they have the correct settings to be used as a launch screen. (1212014)

  • MacOS: Fixed an issue where targeting .Net 3.6 would fail notarization on macOS because of mono being compiled with too old of an SDK.

  • Mobile: Added iPod Touch 7th Generation to the iOS.DeviceGeneration API. (1185468)

  • Mobile: Added profiler and remote support for iPhone 11, 11 Pro and 11 Pro Max, Apple TV 4K, iPod Touch 7th Generation.

  • Package Manager: Fixed an issue where scoped registry packages not listed when the registry backend did not provide the content-type header in the response. (1217800)

  • Package Manager: Fixed an issue where Unity could not connect to the UnityPackageManager process due to misconfigured proxy settings. (1213556)

  • Particles: Ensure sub-emitter rotation takes GameObject Transform into account. (1168251)

  • Prefabs: Fixed an issue with the position of prefab instances in the hierarchy, both in the scenes and prefabs with nesting. (1213249)

  • Profiler: Fixed an issue where it was unable to control to which PC the Player connects when using 'Autoconnect Profiler. (1141872, 1149416, 1182142)

  • Profiler: Fixed an issue where the Profiler window did not always refresh its content after loading a capture file. (1213449)

  • Profiler: Fixed an issue where windows editor slowdown when there was a lot of players in the network. (1193875)

  • SceneManager: Fixed a regression bug, where LoadSceneAsync would not cache the asyncOperations callbacks. (1049526)

  • Scripting: Fixed an issue where project throw package errors if it is located on root of a drive. (1196161)

  • Timeline: Fixed an issue with building for iOS if there is no videoplayer in the scene.

  • Version Control: Fixed an issue where modified scenes in some rare cases not getting checked out under Perforce (AssetDatabase.IsOpenForEdit paths array variant had a bug). (1217833)

  • Video: Fixed an issue where asset bundles which include VideoClip have different CRC values when built from a different directory. (1152507)

  • Video: Fixed an issue with memory leaks when in Play mode. (1168659)

  • Windows: Fixed an issue where certificate validation failing on machines with certain intermediate certificate authority certificates installed. (1215665)

  • Windows: Fixed an issue where Unity Crash Handler opens the game process with PROCESS_ALL_ACCESS flag upon the game launch. Unity Crash Handler does it only if the game crashes. (1204191)

  • XR: Fixed a NULL De-Ref exception due to WorldAnchorStore reload. (1165639)

  • XR: Fixed am issue where Hololens 2 pausing when UserPresence is lost with RunInBackground enabled.

  • XR: Fixed an issue with stereo rendering on Gear VR and Oculus Go. (1209695)

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