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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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Версия: 2017.4

LTS версии 2017.4.30f1

Выпущен: 5 July 2019

Мы рады анонсировать Unity 2017.4.30f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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2017.4.30f1 Release Notes

Improvements

  • XR: Added GPU Profiler support for Oculus Quest and Oculus Go.

Fixes

  • Android: Enabled NEON in PhysX to fix performance regression. (1120019)

  • Asset Bundle: Fixed an issue where an "Inconsistent asset" error was logged during BuildPipeline.BuildAssetBundles. (1138140, 1139332)

  • Asset Pipeline: Fixed an error introduced that caused assets with identical names that come after scriptable objects to become unloadable. (1140186, 1156155)

  • Editor: Added validation of host local address on GET HTTP request. (1146895, 1152792)

  • Graphics: Fixed a bug in batch mode on DX11 where render targets would be kept bound. (1141782, 1160442)

  • Graphics: Fixed baked shadow angle not taken into account for indirect bounce. (1132238, 1133438)

  • IL2CPP: Fixed the behavior of bidning Unix socket on Posix platforms. (1150549, 1155418)

  • MacOS: Fixed the icon at 128x128 being corrupt in MacOS build. (1038984, 1133768)

  • Mobile: Fixed crash/data corruption when loading multiple asset bundles concurrently. (1140019, 1156210)

  • Shaders: Fixed runtime shader load performance regression by removing randomish up-front warmup of all subshaders. (1105268, 1117413)

  • Windows: When exiting fullscreen mode, the window will now be centered instead of put in the top left corner of the monitor. (1067817, 1155176)

LTS версии 2017.4.29f1

Выпущен: 10 June 2019

Мы рады анонсировать Unity 2017.4.29f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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2017.4.29f1 Release Notes

Fixes

  • OSX: Fixed issue with Download Assistant failing on MacOS 10.15

LTS версии 2017.4.28f1

Выпущен: 3 June 2019

Мы рады анонсировать Unity 2017.4.28f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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Release Notes

  • Fixed hang due to job threads occasionally going idle even if they have jobs assigned to them.
  • 2D: Fixed crash on "SpriteAtlas::ReconcilePackedSprites" during AssetBundle build while repacking Sprite Atlases. (1142859)
  • Android: Fixed crash when upgrading an existing app to ARM64. (1157347)
  • Build Pipeline: Fixed Added a call to clean up high memory usage in BuildPipeline.BuildAssetBundles to avoid a crash due to out of memory. (1129899)
  • Editor: Changed editor preference behavior to only update modified values in the plist file on MacOS. (1146446)
  • Editor: Fixed Drag and dropping doesn't always work. (1136897)
  • Editor: Fixed Mouse move events affect Editor UI performance. (973842)
  • Editor: Fixed Restrict Editor debugging to clients on same machine. (1140292)
  • GI: Fixed the environment lighting and skybox are not updated. (1156360)
  • Graphics: Fixed crash in AssetBundle build while repacking Sprite Atlases. (1142855)
  • Graphics: Fixed issue where ETC Crunch decoder would crash on iOS. (1152384)
  • IL2CPP: Corrected an intermittent crash when a managed exception occurs on a back ground thread while the process is shutting down. (1152376)
  • iOS: Fixed AudioMixerPlayable and AudioPlayable crash while terminating iOS application. (1118388
  • iOS: Fixed player crashing at decode_alpha_selectors_etc when decoding crunched ETC texture. (1140135)
  • Mobile: Fixed [Razer Phone] TargetFPS and vSyncCount having no effect on the actual FPS. (1136329)
  • PS4: Fixed indirect draws sometimes resulting in softhang. (1148616)
  • Windows: Fixed issue where high-poll-rate mice were causing performance degradation in the Editor on Windows. (1146052)

LTS версии 2017.4.27f1

Выпущен: 10 Мaй 2019

Мы рады анонсировать Unity 2017.4.27f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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2017.4.27f1 Release Notes

Fixes

  • 2D: Fixed an issue where sprites could disappear while moving in the tile palette. (1133841, 1140232)

  • Android: Fixed an issue on Mali GPUs where font textures would occupy 4 times more memory than on other GPUs. (1132219, 1134228)

  • Android: Fixed an issue with ASTC compression on mobile. (1059665, 1141311)

  • Android: Fixed issue where Unity logo in splash screen was shown as a black rectangle on Android 4.4 devices. (1100390, 1129749)

  • Android: Fixing problem with detecting latest installed build tools version. (1094262, 1132183)

  • GI: Fixed generating UV2 with UnityEditor.Unwrapping.GenerateSecondaryUVS failing when generating for models with more than 64k vertices. (1131979, 1134708)

  • Graphics: Fixed Skybox field in Lighting Window not showing the correct value when working with multiple scenes. (916245, 1140744)

  • Particles: Fixed newly emitted particle sizes not being updated when using Simulate and the restart flag is true. (1104199, 1123852)

  • Particles: Fixed Simulate not updating sub-emitters particles when restart flag was false. (1104199, 1123852)

  • Player: Libpng library upgraded to version 1.6.36. (1141755, 1148312)

  • Unity Test Runner: Fixed filtering in the TestRunner while running tests from the batch mode. (1008728, 1051195)

  • Web: Fixed WebViewTests causing editor to crash on exit. (1038514, 1056726)

  • XR: Fixed a CPU core configuration issue on Oculus Quest that resulted in too many job threads spinning up. (1141670, 1141677)

LTS версии 2017.4.26f1

Выпущен: 24 April 2019

Мы рады анонсировать Unity 2017.4.26f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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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 версии 2017.4.25f1

Выпущен: 8 April 2019

Мы рады анонсировать Unity 2017.4.25f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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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 версии 2017.4.24f1

Выпущен: 22 March 2019

Мы рады анонсировать Unity 2017.4.24f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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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 версии 2017.4.23f1

Выпущен: 11 March 2019

Мы рады анонсировать Unity 2017.4.23f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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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 версии 2017.4.22f1

Выпущен: 4 March 2019

Мы рады анонсировать Unity 2017.4.22f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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Fixes

Changset: eb4bc6fa7f1d

LTS версии 2017.4.21f1

Выпущен: 21 February 2019

Мы рады анонсировать Unity 2017.4.21f1. Примечания к выпуску и ссылки на ошибки, исправленные в этом выпуске, показаны ниже.

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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

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