#### Improvements

*   Version Control: Added "Overwrite Failed Checkout Assets" editor setting, turning it off makes unity not overwrite files that can't be checked out ([1010999](https://issuetracker.unity3d.com/issues/perforce-unity-writes-to-exclusive-checkout-scriptable-objects), 1159203)

#### Fixes

*   2D: Fixed compositing of Collider2Ds with CompositeCollider2D when CompositeCollider2D is added after. ([1156794](https://issuetracker.unity3d.com/issues/colliders-are-not-merged-when-using-compositecollider2d), 1163336)
    
*   2D: Fixed the offset of a Tile's Collider shape when a Grid Collider type is used with an Isometric Grid. ([1148573](https://issuetracker.unity3d.com/issues/tilemaps-collider-is-offset-on-the-x-axis-when-using-isometric-tilemap), 1163380)
    
*   Android: Fixed subsystems not being found when using Android app bundles. ([1162654](https://issuetracker.unity3d.com/issues/xr-subsystems-are-not-found-when-using-android-app-bundles), 1162657)
    
*   Animation: Fixed issue where TextMesh with just a empty quad would crash. ([1158732](https://issuetracker.unity3d.com/issues/mesh-recalculatesubmeshboundsinternal-crashes-when-writing-material-equals-1-in-the-text-field-of-text-mesh-component), 1166853)
    
*   Asset Import: Fixed compression quality issue found with some textures using DXT1/BC1 and DXT5/BC3 compressed texture formats. ([1132906](https://issuetracker.unity3d.com/issues/normal-quality-texture-compression-in-unity-2019-causes-significantly-more-color-banding-than-in-unity-2018-dot-3), 1148708)
    
*   Asset Import: Fxed not use FILE\_SHARE\_READ | FILE\_SHARE\_WRITE | FILE\_SHARE\_DELETE share mode when opening file for read on Windows. ([1037669](https://issuetracker.unity3d.com/issues/temp-files-generated-by-excel-or-similair-applications-fail-to-be-read-and-imported), 1158653)
    
*   Editor: Fixed clickable stacktrace not handling parentheses in path. ([1139181](https://issuetracker.unity3d.com/issues/console-window-breaks-when-console-log-that-has-path-containing-parentheses-is-clicked), 1150437)
    
*   HDRP: Fixed editor crash while importing a model with bad mesh data which has 0 triangle. ([1153037](https://issuetracker.unity3d.com/issues/editor-crashes-on-gfxdeviced3d11base-drawbuffersbatchmode-when-selecting-imported-fbx-while-hdrp-is-set-as-srp), 1160014)
    
*   OSX: Fixed focus issues between multiple visible game views. ([1145433](https://issuetracker.unity3d.com/issues/macos-osx-native-plugin-works-only-after-refocusing-unity), 1153164)
    
*   WebRequest: Fixed handshake renegotiation requests by the server are now supported (UnityWebRequest & .Net Apis). ([1141642](https://issuetracker.unity3d.com/issues/rest-request-to-ssl-server-failed-to-receive-data), 1146142)
    

#### System Requirements

##### For development

**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:

*   Desktop:
    
    *   OS: Windows 7 SP1+, macOS 10.12+, Ubuntu 12.04+, SteamOS+
    *   Graphics card with DX10 (shader model 4.0) capabilities.
    *   CPU: SSE2 instruction set support.
*   iOS player requires iOS 9.0 or higher.
    
*   Android: OS 4.1 or later; ARMv7 CPU with NEON support or Atom CPU; 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