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Unity 2021 LTS provides a stable foundation for projects that are in production or about to ship. Unity 2021.3 LTS stream release has the same feature set as the 2021.2 Tech stream release.

We’re committed to supporting 2021 LTS releases with biweekly updates until mid-2023, after which updates will be monthly until April 2024 (two years after the initial release date). These updates will only cover fixes aimed at improving the stability of the product to enable users to ship their projects.

Unity 2020.3 is now the legacy LTS; it will be updated monthly until it reaches the end of its support cycle in mid-2023.

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LTS Release 2017.4.26f1

Liberado: 24 April 2019

Estamos felizes em anunciar a Unity 2017.4.26f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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2017.4.26f1 Release Notes

Fixes

  • Android: Fixed crash when AndroidJavaProxy is invoked while app is in background. (1126040, 1141478)

  • Android: Fixed keyboard not opening when an InputField is touched in API Level 28. (1143344)

  • Cache Server: Fixed duplicate downloads of assets from Cache Server. (1084628)

  • Physics: Fixed Root Motion slowdown introduced in 2017.2. (984547, 1033423)

  • SceneManager: Fixed a Race condition in TransformAccessArray. (1133800)

  • Scripting: Fixed crash when a MonoBehaviour contains any serializable string attribute that contains malformed utf16. (1134364)

LTS Release 2017.4.25f1

Liberado: 8 April 2019

Estamos felizes em anunciar a Unity 2017.4.25f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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2017.4.25f1 Release Notes

Fixes

  • Android: Fixed accessibility warning when publishing to Google Play. (1094743)

  • Android: Fixed binary shaders not being cached on Android devices with Adreno GPUs. (1129357)

  • Editor: Fixed crash due to double Dispose call in a TextGenerator. (1129463)

  • Graphics: Fixed editor crash when illegal position is introduced to graphics engine. (1115965)

  • iOS: Fixed occasional crash when destroying WebCamTexture. (1090053)

  • Package Manager: Fixed missing Editor folder in PackageManager directory if installed through DownloadAssistant. (1133409)

  • Package Manager: Removed unnecessary files packaged with the Unity installer. (1131025)

  • Particles: Fixed a crash in the ParticleGeomWrite function. (1136510)

  • Scripting: Improved performance when calling GameObject.AddComponent for a nested MonoBehaviour class inside a namespace. (1085304, 1118038)

  • Shaders: Fixed shader compiler emitting the same struct definition each time it sees it, regardless of whether it was emitted already or not. (1099165)

  • UI: Fixed API inconsistency with no support of uv2 and uv3 inside the VertexHelper class. (1117237)

LTS Release 2017.4.24f1

Liberado: 22 March 2019

Estamos felizes em anunciar a Unity 2017.4.24f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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2017.4.24f1 Release Notes

Fixes

  • Android: Fixed an issue loading assets from OBBs when a Unity generated AndroidManifest.xml is reused in a project. (1061304, 1069217)

  • Android: Fixed an issue where using AndroidJavaProxy multiple times per frame could cause a global reference table overflow. (1044728)

  • Android: Fixed Environment.TickCount returning negative value on Android 8.0+. (1108927)

  • Android: Updated JNI Bridge to correctly handle VideoPlayer buffers after SDK version upgrade. (1121718)

  • Build Pipeline: Prevented crash when invoking the build pipeline from a build pipeline user callback. (1129944)

  • Camera: Fixed case where editor would crash when rendering with an invalid occlusion camera. (1089008)

  • Graphics: Fixed deletion of external texture not clearing internal texture binding caches. (1094803)

  • Graphics: Optimised cluster rendering by reducing network packet send latency. (965251, 1131275)

  • iOS: Fixed an issue where visual artifacts could appear when using the Deferred Rendering Path on Metal. (996086, 1129492)

  • Mobile: Fixed Android development build keyboard display over the locked screen. (946796, 1076660)

  • Scripting: Added support for events in Script Updater. (1069340)

  • WebGL: Fixed audio not working in Safari after Apple added auto-play restrictions (requires clicking on content to enable audio). (1089060)

LTS Release 2017.4.23f1

Liberado: 11 March 2019

Estamos felizes em anunciar a Unity 2017.4.23f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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2017.4.23f1 Release Notes

Fixes

  • Android: Fixed problems with manifest file and gradle templates after updating gradle plugin to 3.2. (1118286)

  • Android: Un-deprecate AndroidTargetDevice.

  • Animation: Fixed crash when playing a playable graph and setting an override controller. (1087755)

  • Asset Bundles: Fixed error when loading an object from an asset bundle on the first frame of a scene load operation under certain conditions. (1094045)

  • Asset Database: Fixed an issue where scenes with a period in the name could not be loaded by asset bundles. (1022819)

  • Asset Pipeline: Fixed Asset Bundles not loading scenes if the scene had a period in its name. (1022819, 1104962)

  • Asset Pipeline: Fixed non-deterministic data in asset bundle when using Prebake Collision Mesh. (1116173)

Changeset: f80c8a98b1b5

LTS Release 2017.4.22f1

Liberado: 4 March 2019

Estamos felizes em anunciar a Unity 2017.4.22f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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Fixes

Changset: eb4bc6fa7f1d

LTS Release 2017.4.21f1

Liberado: 21 February 2019

Estamos felizes em anunciar a Unity 2017.4.21f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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2017.4.21f1 Release Notes

Fixes

  • Android: Fixed hang at exit if submitting AndroidJavaProxy/Runnable to UI thread. (1124902)

  • Asset Pipeline: Fixed race condition where unloading an asset bundle immediately after loading a texture from it can result in a failed texture load. (986673, 1081768)

  • Audio: Fixed Microphone.Start selecting the first device regardless of desired device in some cases. (962106, 1062000)

  • Build Pipeline: Fixed crash on AddBuildAssetInfoChecked when building project with scene that contains "Super Text Mesh" component. (1031313)

  • iOS: SafeArea returns either smaller or the same size as Screen.width & Screen.height on iOS devices in any view. (1027960)

  • OSX: Fixed Mac Editor crashing when clicking on MenuItem during recompile after renaming it in script. (996485)

  • Shuriken: Fixed MaterialPropertyBlocks not being applied to particle trails. (1059140)

  • Substance: Fixed ProceduralMaterial.ClearCache() on "Do Nothing" triggers RebuildTextures. (941423)

Changeset: de35fe252486

LTS Release 2017.4.20f2

Liberado: 11 February 2019

Estamos felizes em anunciar a Unity 2017.4.20f2. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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Fixes

  • Fixed a console support module issue.

Changeset: 413dbd19b6dc

LTS Release 2017.4.19f1

Liberado: 28 January 2019

Estamos felizes em anunciar a Unity 2017.4.19f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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Fixes

  • 2D: Fixed Unity Editor crash during Sprite Atlas packing. (1029266)

  • Android: Fixed for Android Dynamic feature crashes the application when running the build via Android Studio. (1100785)

  • Android: Fixed instancing not working in some situations on Adreno GPUs (1053324, 1102804)

  • Android: Fixed instancing not working in some situations on PowerVR GPUs (1109159)

  • Animation: Fixed avatar preview pan position being reset whenever editing animation events. (1067998)

  • Editor: Fixed curve editor and dopesheet controls disappearing when entering play mode in the editor. (1035934, 1040997)

  • Editor: Fixed issue where specifying frustum view point would actually use it as base for the near plane. (1081967)

  • Editor: Fixed this issue by restricting the insertion of menu items into a given submenu to a prescribed limit of 1000 items and displays a warning about the same. (1039181)

  • Graphics: Fixed JobTempAlloc memory leak and random crash when rendering a scene with a SpriteRenderer when using Graphics Jobs. (1100859)

  • Graphics: Fixed submitting non-instanced property arrays via DrawMeshInstanced. (1010738, 1108825)

  • IL2CPP: Fixed crash when using the Environment.MachineName property on some machines when targeting UWP and make it return results consistent with the Standalone Player. (1093953)

  • IL2CPP: Fixed InvalidCastException that can sometimes happen when passing managed object that derives from a native Windows Runtime class to native code. For instance, this happens when deriving from Windows.UI.Xaml.Control.ContentDialog and trying to show it. (1104540)

  • Mobile: Fixed crash that happens if native library initialization fails for any reason (1097013)

  • Scripting: Fixed an issue with static members such as generic classes with their argument being an array type not being reported the memory snapshot API. (984330)

  • Scripting: Fixed random crash in Asset GC. (1091878)

  • Shuriken: Fixed Renderer.bounds returning the wrong bounds when multiple renderers were on the same GameObject. (1088716, 1089020)

  • UI: Fixed InputField gets corrupted and ArgumentOutOfRangeException is thrown when using certain emojis. (1050713)

  • UI: Fixed material being made dirty when rendering with a RectMask2D. (967024)

  • UI: Fixed performance regression with RectTransform animation (1104878)

  • Unity Test Runner: Fixed non-printable characters in native test name output are now printed correctly. (1044529)

Changeset: 47cd37c28be8

LTS Release 2017.4.18f1

Liberado: 10 January 2019

Estamos felizes em anunciar a Unity 2017.4.18f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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Fixes

  • 2D: Fixed a crash when packing certain Sprite Atlas on Android. (1017666, 1101608)

  • Android: Fixed Android Gradle manifest merging when plugins are missing SDK target version in manifest. (1084622, 1090922)

  • Android: Texture2DArray and Texture3D now check if the filtering mode is supported by the GPU and downgrade when necessary. (1066181)

  • IL2CPP: Fixed crash when using StructLayout attribute and specifying a Pack value. (1099207)

  • iOS: Fixed a crash when using using static const std::string in Xcode 9. (1050875, 1102753)

  • iOS: Fixed AudioClips with future timestamps import issue. (951169, 1104104)

  • Kernel: Fixed an issue which could cause an error when reading files from disk. (1092419)

  • Mobile: Android gradle daemons are now killed when the editor is shut down instead of after every build. (1041385)

  • Package Manager: Fixed an issue where errors were not handled in a consistent manner when a package cannot be found on the registry.

  • Shaders: Allow loading shaders from AssetBundles that were created in 2017.2. (1091064)

  • WebGL: Fixed camera viewport rect bug in WebGL + Linear color space. (957652)

  • WebGL: Fixed canvas resize when using Linear color space. (977579)

Changeset: a9236f402e28

LTS Release 2017.4.17f1

Liberado: 7 December 2018

Estamos felizes em anunciar a Unity 2017.4.17f1. As Notas da Edição e o link correspondente à Gestão de problemas para os problemas corrigidos nesta edição aparecem abaixo.

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Fixes

  • AI: Fixed NavMesh baking issue that appears when an Obstacle is at a certain proximity to another mesh (1044247, 1098887)

  • Android: Fixed a crash for Android 9 (Pie) where ServiceConnection.onNullBinding() does not exist. (1091766)

  • Android: Fixed case of white flash when starting a Unity android app. (929955, 1087299)

  • Audio: Fixed FMOD shutdown to avoid a deadlock (1046752, 1086869)

  • Build Pipeline: Fixed an issue where Scene Asset Bundles could not influence managed and native code stripping. (1052180)

  • Editor: Fixed Null reference Exceptions occurring while typing in the project window search bar (1077389, 1092366)

  • Editor: Unity Editor will no longer automatically unlock assembly reload (960397)

  • IL2CPP: Fixed calls to native functions from delegates using stdcall calling convention, even if explicitly marked as cdecl. Caused problems on windows x86 (and UWP x86), leading to rare crashes in code using SSLStream (1044485)

  • IL2CPP: Fixed IL2CPP build failing if Visual Studio 2019 is installed on the machine.

  • Licenses: Fixed an issue where licence activation didn't work when using the -nographics command line flag (1043511, 1088048)

  • Physics: Fixed RaycastHit.textureCoord performance issue, was internally copying whole mesh index buffer for no good reason (1065218)

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