Microsoft has released Windows 10 SDK Preview Build 16257 and Mobile Emulator Build 15235 for people developing on the Universal Windows Platform.

The Preview Build of the SDK and the Mobile Emulator are to be used in conjunction with Windows 10 Insider Preview Build 16257 or greater.

The Preview SDK Build 16257 contains bug fixes and under development changes to the API surface area.

A few things to note:

  • This build works in conjunction with previously released SDKs and Visual Studio 2017.  You can install this SDK and still also continue to submit your apps that target Windows 10 Creators build or earlier to the store.
  • The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.

The Preview SDK and Mobile Emulator can be downloaded from developer section on Windows Insider.