### 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