Unreal Engine 4 is available for Win10 UWP app dev now

Thanks!

Any ideas why we have to apply this fix:

https://forums.unrealengine.com/development-discussion/engine-source-github/1400696-errors-when-run-generateprojectfiles-bat-in-uwp-unreal-release

when getting the following issues:
-warning MSB3245: Could not resolve this reference. Could not locate the assembly “Windows”
-error CS0246: The type or namespace name ‘Windows’ could not be found

while running GenerateProjectFiles.bat

Is there any side effects of changing <TargetPlatformVersion>8.0</TargetPlatformVersion> to 8.1?