Long Term Support

We are happy to announce Unity 2017.4.0f1. The release notes and the corresponding issue tracker link for issues fixed in this release are as shown below.

Unity Editor Download Assistant

• Download (Win)
• Download (Mac)

Component Installers Windows

• Unity Editor 64-bit
• Cache Server
• Built in shaders
• Standard Assets
• Example Project
• Samsung TV Support Installer
• Torrent download (Win+Mac)

Component Installers Mac

• Unity Editor
• Cache Server
• Built in shaders
• Standard Assets
• Example Project
• Samsung TV Support Installer
• Torrent download (Win+Mac)

Component Installers Linux

Improvements

• 2D: Change Outline and Physics Shape module behaviour in Sprite Editor Window. The module will only show outlines only when user has customised it.
• 2D: TextureImporter Inspector has an option to enable default Physics Shape for Sprites
• Linux: Improved filesystem performance to handle large cache sizes.
• XR: Improved background rendering performance in ARCore by eliminating an unnecessary OpenGL state reset.
• XR: Updated Oculus to version 1.22.

Changes

• Asset Import: Adjusted messaging around Substance Designer import removal.
• XR: Android builds that enable ARCore no longer fail when the minimum Android SDK is less than 24.
• XR: Standalone UWP applications targeting Windows Mixed Reality will now cause the OS to notify the user if the Mixed Reality components are not installed or a headset is not connected, rather than silently falling back to non-VR desktop mode.

Fixes

• 2D: Fixed an issue that was causing the Physics Shape of a Sprite2D to not being properly set unless the 'Edit Physics Shape' tab was opened first. (990691)
• 2D: Fixed a crash after building and loading an Asset Bundle with Tilemap in the Editor. (976411)
• 2D: Fixed a crash when Tilemap is loaded with invalid Tiles in the Editor. (972214)
• 2D: Fixed an error message "A script behaviour has a different serialization layout when loading" when a Tilemap was loaded in players with code stripping. (969827)
• 2D: Fixed Physics2D.TilemapCollider.TileUpdate taking an extremely long time to update every time a script recompile happens. (966605)
• 2D: Fixed Tilemap not setting Tiles with the correct data in players with code stripping. (965608)
• Android: Fixed a bug causing the loading of native audio plugins to fail on Android. (992023)
• Android: Fixed an issue where the full-screen movie player didn't autorotate. (962450)
• Android: Fixed animation not played when screen sharing is enabled. (995841, 958223)
• Android: Fixed a crash when a compute shader is being used that did not compile/link on a device.
• Android: Fixed gyroscope lag issues that happen on some android devices. (912848)
• Android: Fixed an issues when trying to use jobified rendering on certain graphics devices like GLES. (985591)
• Android: Fixed a problem when there is no valid EGL context when running the player loop. (952769)
• Android: Fixed Skybox distortion on specific Android devices with Vivante GC1000/GC2000 GPU. (967646)(903140)
• Animation: Fixed a crash caused by invoking QueryComponentByType() when code stripping is enabled. (962745) (938640)
• Animation: Fixed an issue where AnimatorOverrideController.ApplyOverrides was executing unnecessary operations, causing performance issues. (996351)
• Animation: Fixed Animator Layer not deselected when clicking on the graph part of the UI. (996153)
• Animation: Fixed Animator.GetBehaviours returning an empty array after saving scene. (975824) (966082)
• Animation: Fixed a crash when calling Animator.MatchTarget without a controller. (975555)
• Animation: Fixed a crash when importing animator controller with null transitions. (986004)
• Animation: Fixed editor crashing on WalkTypeTree after removing any component while in Animation record mode. (978930)
• Animation: Fixed state deselection in the Animator State Machine. (950805)
• Animation: Fixed Timeline Sequence not firing Animation Events. (947918)
• Asset Bundles: Fixed a crash when loading meshes from asset bundles that contain both compressed and uncompressed meshes. (984070)
• Asset Bundles: Fixed packing AudioMixerController, AudioMixerGroup and AudioMixerSnapshot into bundles with disabled type trees. (976768)
• Asset Import: Fixed AssetPostprocessor.OnAssignMaterialModel not being called for all models when importing materials as sub-assets. (983321)
• Asset Import: Fixed a crash when importing fbx .meta files that contain references to non-existing scripts or when scripts ID was too large. (999833, 990267)
• Asset Importing: Fixed an issue with MonoScripts for StateMachineBehaviour derived classes not being extracted from managed plugins. (963958)
• Audio: Fixed a bug where AudioManager::Update was generating a small amount of garbage memory, if a spatializer was selected, that would later need to get garbage-collected. (991111)
• Cache Server: Fixed an issue where using a Cache Server and reimporting Assembly Definition files would fail to trigger rebuilding of the assembly. (975773)
• Cloud: Fixed exception when building in Cloud Build with Performance Reporting enabled. (996950)
• Editor: Fixed a Windows-specific crash in YAMLMerge when trying to merge files. (1001450)
• Editor: Fixed early flipping of login page in Mac by increasing the timeout. (980070)
• Editor: Fixed an editor crash when renaming GameObject with long name on Windows. (991619)
• Editor: Fixed an Editor hang when merging large changesets or large scene files with Collaborate. (971434)
• Editor: Fixed Editor window, Panel and all related managed object leaking. (996204, 988580)
• Editor: Fixed issue with "Rider 2017.2.1.app" not being recognized as Rider code editor. Now recognizes "Rider*.app".
• Editor: Fixed an issue with only assemblies whose name start with "Assembly" being debuggable on IL2CPP platforms.
• Editor: Fixed an issue with UWP build failing when using .asmdef assemblies. (979704)
• Editor: Fixed Skinned Mesh not being removed on undo. (925835)
• Editor: Fixed YAMLMerge performance issue when merging large files. (1001461)
• Fixed uninstalling Unity leaving sketchupapi.dll behind. (994283)
• GI: Fixed the intensity of baked and real-time emissive materials in Enlighten. (986160)
• Graphics: Fixed OpenGL ES crash due to problem with cached VertexAttribArray. (989484)
• IL2CPP: Added Windows runtime storage extensions. (992138)
• IL2CPP: Corrected a possible build failure with IL2CPP when an attribute constructor has two arguments of type object. (993422)
• IL2CPP: Enabled dead code stripping for clang toolchain. (976218)
• IL2CPP: Fixed a crash in Unity Linker (System.InvalidProgramException: Failed to resolve [UnityEngine]System.Resources.NeutralResourcesLanguageAttribute) when using a managed - DLL that has a non-existing attribute on it. (969958)
• IL2CPP: Fixed a hang on iOS devices when a socket operation is in progress and the app is put into the background with the new scripting runtime. (989536)
• IL2CPP: Fixed a problem with the decimal to double conversion implementation with the new scripting runtime. (959791)
• IL2CPP: Fixed an unlikely, but possible crash when default parameter values are used. (973052)
• IL2CPP: Fixed incorrect code generation for nullable types when they are passed to a virtual function. (995663)
• IL2CPP: Implemented sending of email via SmtpClient with .NET 4.6. (947208)
• IL2CPP: Implemented the EnsureSufficientExecutionStack method for .NET 4.6. (976623)
• IL2CPP: Improved the performance of code conversion when many nested generic types are used. (975496)
• IL2CPP: Improvedthe startup performance of Unity players built with IL2CPP. (989476)
• iOS: Fixed a problem preventing a user from being prompted to log into GameCenter. (1000658)
• iOS: Fixed Display.SetResolution to work during first frame. (1003875, 995079)
• iOS: Fixed UnityWebRequest instability when starting and aborting a lot of requests. (995992, 944301)
• iOS: Metal: Fixed MSAA behavior when using RenderPass.
• iOS: Metal: Fixed ReadPixels() crash when reading out of active textures bounds. (990595, 981074)
• Linux: Fixed a crash on player startup in GfxDeviceVKBase::GrabIntoRenderTexture. (1002211)
• Metal: Fixed an edge case crash when using grab-pass on metal. (973813)
• OSX: Fixed a crash on Editor panel close on select versions of macOS. (982435)
• OSX: Fixed a crash on Editor panel close on select versions of macOS. (982435)
• OSX: Fixed an editor crash on certain hotkeys and menu selections during project import. (988776)
• Package Manager: Fixed a project being stored on OneDrive resulting in a Package Manager error and preventing a project from being opened. (841172)
• Package Manager: Fixed building as local system user failing on Windows. (960093)
• Particles: Fixed flickering due to a floating point error when sorting by youngest/oldest. (988874)
• Physics: Ensured that "Collider2D.Distance" with very small distances produces a valid normal. (969960)
• Physics: Fixed Assert message being displayed when reparenting a Collider2D component that is using a CompositeCollider2D. (977687)
• Physics: Fixed crash during simulation after destroying Rigidbody2D that has a child Kinematic Rigidbody2D. (989323)
• Physics: Fixed disabling and enabling a collider on an inactive gameobject producing transform error messages. (977568, 968882)
• Physics: Fixed double full stop added to the dropdown boxes in the physics settings. (998183, 958814)
• Physics: Fixed issue where MeshCollider is added to prefab in Hierarchy when selected from the project folder. (998186, 960479)
• Physics: Fixed PhysX crash when calling Physics.OverlapBoxNonAlloc on Android devices. (878407)
• Physics: Increased the accuracy of rotating a tile clockwise/anti-clockwise by 90-degrees when tilemap painting. This ensures that TilemapCollider2D can be accurately composited using the CompositeCollider2D. (974119)
• Profiler: Fixed EndThreadProfiler crashing Unity when called from main thread. (980553)
• PS4: Fixed a crash when calling DateTime.Now whilst using il2cpp. (996508)
• PS4: Fixed a native rendering plugin GetContext() not returning correct value. (991969)
• Scene Management: Fixed BuildPipelineInterfaces.InitializeBuildCallbacks() being called on every scene load when loading the same scenes multiple times. (978564)
• Scripting Upgrade: Fixed a C# compiler bug which could result in "the type cannot be used as type parameter `T' in the generic type or method" errors. (991464)
• Scripting Upgrade: Fixed a crash on exit when script debugger is enabled. (974228)
• Scripting Upgrade: Fixed a crash when using named pipes. (942966)
• Scripting Upgrade: Fixed EntryPointNotFoundException when calling HTTPClient.GetAsync on Android. (935292)
• Scripting: Fixed a crash when using named pipes. (929984)
• Scripting: Fixed a crash when using unsafe code in an assembly built with VS2017. (990559)
• Scripting: Fixed an incorrect value when using Math.Round with MidpointRounding.AwayFromZero. (993302)
• Scripting: Fixed memory snapshot errors related to invalid GCHandle values. (977003)
• Scripting: Fixed memory snapshot naming for nested types. (974042)
• Scripting: Fixed memory snapshot naming for types without a namespace. (974031)
• Scripting: Fixed regression with Assembly-CSharp.dll and friends referencing editor only assemblies. (982271)
• Services: Performance Reporting: Report device model field for Managed Exceptions. (980815, 980816)
• Shaders: Fixed bad swizzles on GLSL & Metal shader image size queries. (938614)
• Timeline: Fixed ArgumentOutOfRangeException when shift-selecting a clip, if that clip was moved and the move operation was undo. (986871)
• Timeline: Fixed group tracks being saved under the wrong asset when copied to a different Timeline. (991434)
• Timeline: Fixed object binding when inline curves are opened. (998182)
• Timeline: Fixed Playing a Timeline causing GC allocations when using the 4.6 Scripting Runtime. (998642)
• UI: Fixed an issue where undoing the activation of a UI layout component did not undo the side effects to the children RectTransforms. (990752)
• UI: Fixed AspectRatioFitter not driving the RectTransform on the first frame. (999338)(988706)
• UI: Fixed crash in RectTransform::ShouldUpdateTransformBefore. (986584)
• UI: Fixed entering playmode with profiler open and UI in the scene crashes in UI::Canvas::CaptureBatchFrame. (984325) (966106)
• UI: Fixed instances where Font.textureRebuilt would not be called even though the internal texture was regenerated. (988311) (939853)
• UI: Fixed issue where a driven RectTransform could cause a scene to be constantly flagged as dirty. (988136) (966172)
• UI: Fixed issue where position and rotation specified when calling Object.Instantiate was not applied properly to a RectTransform. (992286, 980300)
• UI: Fixed issue with UI and prefab positioning. (977959)
• UI: Fixed OnEndDrag not being called when dragging as the app loses focus. (995452, 937370)
• UI: iOS Fixed incorrect processing of touch canceled events. (973437)
• UWP: Fixed .NET native compiler crash when using List or List in a serializable class. (979741)
• UWP: Fixed Application.isMobilePlatform results to be consistent with SystemInfo.deviceType. Also update API docs for these APIs. (991466)
• UWP: Fixed reference rewriter not fixing references for System.Net.Sockets.Socket when DLL where it's being referenced was compiled against .NET 3.5. (947209)
• UWP: Fixed keyboard input not distinguishing left/right shift keys. (968801)
• VR: Fixing crash involving VR Mock Device when using TrackedPoseDriver. (966990)
• Web: Fixed file URI with host component in UnityWebRequest. (991606, 971557)
• Web: Fixed handling special URIs in UnityWebRequest with colon in them, like blob:http. (995845, 992221)
• Web: Fixed native UnityWebRequest not destroyed until garbage collected even if explicitly disposed. (988818)
• WebGL: Added handling of playBuffer exception when there is no audio output on Safari. (994912, 960863)
• Windows: Fixed an assert when stopping and then immediately destroying DictationRecognizer. (986045)
• Windows: Fixed a crash on startup in case screen width/height player prefs in registry got corrupted. (979198)
• Windows: Fixed default width/height not honored for 'Windowed' mode. (968584)
• Windows: Player executable is once again large address aware. (990939)
• XR: Fixed a crash that would occur if an application used Unity's Spatial Mapping component without VR being enabled or without using Windows Mixed Reality. (973172)
• XR: Fixed an issue with lights failing to completely illuminate scene geometry during stereo rendering. (965494)
• XR: Fixed build crashes when using stereo display. (987306)
• XR: Fixed calling touch keyboard causing unhandled exception to be thrown and app closing. (993425)
• XR: Fixed calling XRSettings.LoadDeviceByName on an already loaded device causing issues. (998801)
• XR: Fixed a crash when connecting simulator device while running in editor. (998862, 980089)
• XR: Fixed a crash when holographic emulation set to remote with no device connected. (952777)
• XR: Fixed the documentation around XRSettings.LoadDeviceByName and add a warning message when we detect that a user is trying to reload an already loaded VR Device. (998801)
• XR: Fixed errors when building for Daydream and Cardboard with Proguard enabled. (991170, 946104)
• XR: Fixed frame rate throttling when Windows MR device loses tracking. (994652)
• XR: Fixed losing focus causing the thread to sleep causing fps to drop. (994652)
• XR: Fixed stabilization plane not getting set correctly via the SetFocusPointForFrame() API, resulting in poor hologram stabilization and color separation on HoloLens. (993880)
• XR: Ported missing properties on the Pose type, which broke user code for Windows Mixed Reality when porting from 2017.2. (988571)

Revision: b5bd171ee9ba