Install this version with Unity Hub.
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Known Issues in 2019.4.31f1
Asset Bundles: Building process of the AssetBundles is slow when the file count is huge (1358059)
Audio: Crash on AudioCustomFilter::GetOrCreateDSP when recompiling scripts while in Play Mode (1354002)
Global Illumination: [LightProbes] Probes lose their lighting data after entering Play mode when Baked and Realtime GI are enabled (1052045)
Global Illumination: [macOS] BugReporter doesn't get invoked when the project crashes (1219458)
Graphics - General: RenderTextures break after switching window focus (1179935)
Linux: Linux Editor crashes at "_XFreeX11XCBStructure" when loading tutorials (1323204)
Metal: Performance in Game View is significantly impacted by Gfx.WaitForPresentOnGfxThread when a second monitor is connected (1327408)
Mobile: [Android] Build fails when there are 680 or more files in the Streaming Assets folder (1272592)
Packman: User can't easily configure location of both UPM and Asset Store package local cache (1317232)
Profiling: Profiler.GetTotalAllocatedMemoryLong increases when Scene is loaded and unloaded (1364643)
Shadows/Lights: Crash on ProgressiveRuntimeManager::GetGBufferChartTexture when entering UV Charts mode before baking lights (1309632)
uGUI: Poor performance when loading or unloading a large Scene (1360901)
Video: Crash on WindowsVideoMedia::StepAllStreams when reimporting a .m4v file (1340340)
WebGL: [iOS] Video is not playing (1288692)
2019.4.31f1 Release Notes
Android: Android: Added more complete support for running Android apps on the Chrome OS platform. These changes enable building and running Android on x86 and x86-64 CPUs, now officially supported on Chrome OS devices. These changes also include input-related and windowing improvements for Chrome OS.
Package: Updated ProBuilder 4.5.2. See the package change list for full list.
Version Control: Added ability to allow empty checkin messages.
Version Control: Added ability to modify assets without checkout.
Version Control: Added auto-login for SSO credentials handler.
Version Control: Added empty checking message localization.
Version Control: Added horizontal scroll bar to Changesets list for easier viewing.
Version Control: Added metrics for changeset tab usage.
Version Control: Added metrics for checkin actions.
Version Control: Added missing API documentation.
Version Control: Added new Undo icon.
Version Control: Added notification icon for incoming changes to Plastic toolbar button.
Version Control: Added Plastic toolbar button to Unity editor.
Android: Add property PlayerSettings.Android.optimizedFramePacing API (1329232)
Asset Import: Improved loading performances of import settings for models with a lot of animation clips. (1338096)
Audio: Increased stack size of audio streaming and async threads to avoid overflows when using managed read callbacks. (1352803)
Editor: Added support for duplicate component names to UnityEvent selection popup. (1309997)
Graphics: Reduced main thread hitching caused by Shader loading.
iOS: Reduce memory usage for small uploads in UnityWebRequest. (1355235)
Shaders: Enabling "Optimize mesh data" in player settings no longer makes the build process significantly slower. (1349093)
- Asset Bundles: Added: Added public API to specify the amount of memory reserved for the shared AssetBundle loading cache.
Android: Updated Android Logcat package to 1.2.3.
Code Editor: Updated com.unity.ide.vscode to 1.2.4.
Editor: Updated com.unity.cinemachine to 2.6.10.
Services: Updated analytics package. Constantly repopulating a list of strings was causing the inspector panel for the analytics tracker to spam autosave in some cases (1150985)
Version Control: Changed "Launch Plastic" to "Launch Plastic SCM" in options menu.
Version Control: Changed Launch branch explorer into an icon with tooltip.
Version Control: Improved refresh icon resolution.
Version Control: Moved changesets time period selector to the right corner of the window.
Version Control: Moved incoming change prompt and button into a status bar.
Version Control: Moved number of selected items next to "Item" metadata title on the Pending Changes tab.
Version Control: Moved refresh button to the toolbar at the top right corner of the window.
Version Control: Moved search bar to the top right global icon section in all tabs.
Version Control: Reduced default number of columns in changesets tab.
Version Control: Removed "Changes of changeset" header on the Changesets tab.
Version Control: Removed the hide changes button in changesets tab.
Version Control: Removed the unneeded refresh button from History Tab.
Version Control: Status bar visible across all tabs.
Version Control: The number of changesets is no longer displayed in changesets tab.
Version Control: Updated capitalization of options in the Settings context menu.
Version Control: Updated file status icons.
Version Control: Updated tab button styling to be consistent with Unity Editor conventions.
Version Control: Wording change for plastic installation.
2D: Fixed a potential crash caused by race condition when loading SpriteRenderer from multiple threads. (1351843)
2D: Fixed a vertices winding order for square polygonal Sprite generation issue. (1289069)
2D: Fixed an issue where all open Scenes would get dirty when editing a SpriteShape Spline. (1346430)
2D: Fixed an issue where Sprite outline in the Skinning Editor was not rendered based on Sprite's geometry. (1335586)
2D: Fixed an issue which prevented the bone order to be rearranged in the Bone Influence tool.
AI: Fixed issue where the NavMesh was generated over a mesh marked as "Not Walkable". (1109195)
Android: Fixed cameras with depth only clear flickering or not rendering on Adreno devices issue. (1314872)
Asset Import: Fixed an issue where textures could not be extracted when the FBX file is located in a writeable package. (1329339)
Audio: Fixed a crash when passing a null argument to AudioMixer.FindSnapshot. (1341752)
Editor: Fixed an issue that was spamming the Unity hub with infinite organization info requests from the Editor. (1358817)
Editor: Fixed an issue where the inspector did not displaying state and transition properties once duplicated. (1251586)
Editor: Fixed an issue with nested enumerator execution order.
GI: Fixed an issue when the Editor crashed on EnlightenSceneMapping::GetTerrainChunkUVST when loading a scene with a corrupt Lighting Data Asset. (1325758)
GI: Fixed an issue where the LightProbes.needsRetetrahedralization did not get invoked in IL2CPP builds. (1338514)
Graphics: Fixed a crash during import in very large projects. (1339246)
Graphics: Fixed an issue where Player: SRPBatcher was not increasing CBuffer size when material shader was changed. (1353368)
Graphics: Fixed for Validation error when running game in HDR.
IL2CPP: Avoid possible memory corruption when a generic field is of a type which has an explicit layout, and the generic type has another type with explicit layout as a field. (1337921)
IL2CPP: Corrected the behavior of Marshal.Offset so that it properly accounts for the alignment requirements of fields that occur after a struct field. (1346805)
Input System: Fixed an issue where the Y coordinate was being flipped in Windows Player when WarpCursorPosition in Input System. (1355722)
iOS: Fixed an issue where analytics temporary data was stored in a user accessible folder. (1211659)
iOS: Fixed an issue where Bluetooth keyboards did not handle input outside of text entry again. (1355543)
iOS: Fixed an issue where presentation controller dismissal resulting in black screen when allowed orientations were changed while showing it. (1304313)
iOS: Fixed an issue where there was missing iPad Air 3rd gen and iPad Mini 5th gen enums. (1354041)
iOS: Fixed an issue where UaaL was notdisplayed properly if embedded in app with SceneDelegate support. (1266702)
Linux: Fixed an issue where the Assets menu might be disabled after using the right-click context menu, or items in the context menu are unexpectedly disabled. (1346205)
Mono: Fixed a crash in mono_thread_get_undeniable_exception. (1308625)
Particles: Fixed occasional corrupt particle colors when using a Skinned Mesh Renderer in the Shape Module. (1332410)
Prefabs: Fixed a crash when apply GameObjects or Components to Prefab while the Asset Pipeline was paused. (1324978)
Profiler: Fixed an issue where there was no error message when trying to load old profiler data format and direct users to load the data in unity 2018.4. (1341972)
Scene/Game View: Fixed Hierarchy not allowing drag and drop references to be placed between root objects marked as not editable. (1337512)
Scripting: Fixed a crash in UnityLinker while processing the assembly override version of UnityEngine.UIElementsModule.dll. (1328995)
Scripting: Fixed an issue where "Stop Playing and Recompile" mode (Editor Preferences -> Script Changes while Playing) was not waiting for playmode to be fully disabled before compiling scripts. (1326820)
Scripting: Fixed performance regression when activating/deactivating panels in a canvas. (1348763)
Universal Windows Platform: Fixed a race-condition when using TouchScreenKeyboard's "text" or "selection" properties immediately after calling Open. (1345877)
Universal Windows Platform: Fixed TouchScreenKeyboard on HoloLens2 closing a few seconds after focusing a TextMeshPro input field (1360514)
Version Control: Fixed a workspace NullReferenceException issue.
Version Control: Fixed an issue when context menu would sometimes disappear.
Version Control: Fixed an issue where the Texture2D error would pop up after downloading a project.
Version Control: Fixed auto login errors not showing up for users.
Version Control: Fixed notification icon not showing on Plastic window.
Version Control: Fixed small textbox on checkin dialog when launched from context menu.
Version Control: Fixed unexpected error message after user switched workspace to a label
WebGL: Fixed an error with prevViewport upon full screen resize.
WebGL: Fixed Keyboard.current and Mouse.current to be immediately available in MonoBehaviour.Start() functions, instead of returning null. (1239007)
XR: Fixed an issue with camera depth normals pass in XR. (1284715)
OS: Windows 7 SP1+, 8, 10, 64-bit versions only; macOS 10.12+. (Server versions of Windows & OS X are not tested.)
CPU: SSE2 instruction set support.
GPU: Graphics card with DX10 (shader model 4.0) capabilities.
The rest mostly depends on the complexity of your projects.
Additional platform development requirements:
iOS: Mac computer running minimum macOS 10.12.6 and Xcode 9.4 or higher.
Android: Android SDK and Java Development Kit (JDK); IL2CPP scripting backend requires Android NDK.
Universal Windows Platform: Windows 10 (64-bit), Visual Studio 2015 with C++ Tools component or later and Windows 10 SDK
For running Unity games
Generally content developed with Unity can run pretty much everywhere. How well it runs is dependent on the complexity of your project. More detailed requirements:
- OS: Windows 7 SP1+, macOS 10.12+, Ubuntu 16.04+
- Graphics card with DX10 (shader model 4.0) capabilities.
- CPU: SSE2 instruction set support.
iOS player requires iOS 10.0 or higher.
Android: OS 4.4 or later; ARMv7 CPU with NEON support; OpenGL ES 2.0 or later.
WebGL: Any recent desktop version of Firefox, Chrome, Edge or Safari.
Universal Windows Platform: Windows 10 and a graphics card with DX10 (shader model 4.0) capabilities
Exported Android Gradle projects require Android Studio 3.4 and later to build