Microsoft today released Windows 10 SDK Preview Build 17686 to developers. This SDK can be used with the recently released Windows 10 Insider Build 17686 or later. This SDK comes with support for MSIX file package format that can be installed and run on any device with Windows 10 17682 build or later. Developers can use the MakeAppx tool to package their application with MSIX.
And this release also includes bug fixes and under development changes to the API surface area. This Windows SDK will now formally only be supported by Visual Studio 2017 and greater. This release also contains the new LauncherOptions.GroupingPreference property to help your app in tailoring its behavior for Sets. Watch the presentation here for more details.