Microsoft Windows 10 SDK Preview Build 17682 is now available for download. The latest SDK contains bug fixes and changes to the API surface area. This build works in conjunction with previously released SDKs and Visual Studio 2017. The Windows SDK will now formally only be supported by Visual Studio 2017 and greater.
You can now package your applications as MSIX! These applications can be installed and run on any device with 17682 build or later. To package your application with MSIX, use the MakeAppx tool. To install the application – just click on the MSIX file. To understand more about MSIX, watch this introductory video.
The new build also made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler):
The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe.
You can read more details here.