Microsoft today released Windows 10 SDK Preview Build 17677 to developers. This SDK can be used with the recently released Windows 10 Insider Build 17677 or later. This release includes bug fixes and underdevelopment changes to the API surface area. This Windows SDK will now formally only be supported by Visual Studio 2017 and greater.
This release contains the new LauncherOptions.GroupingPreference property to help your app in tailoring its behaviour for Sets. Watch the presentation here for more details.
The release also includes some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler).
Read about the known APIs and known issues at Microsoft here.
The updated Preview SDK can be downloaded here.