Microsoft today released a new Windows 10 SDK Preview build, which is 15003. No, that's not a typo; it's actually 15003, which was not an actual public Windows 10 Insider Preview build that was released.
Earlier this week, the company released 15002 to the Fast ring, and then offered up the ISO images today; however, you'll still need "15003 or greater" to use the SDK. This means that you'll need yesterday's Fast ring build, which was 15007.
Here's what's new:
This Windows SDK includes updates and additions to the Windows namespace. See section API Updates and Additions below for the list.
Note that there are quite a few API updates that you might want to be aware of (almost 1700 lines worth), so if you want to check them out, head over to the Windows Blog post.
There are also some known issues in this SDK:
There is no Emulator with this release
I cannot specify the new SDK version 15003 when creating a new project
This version of the SDK only works with Visual Studio 2017. You can download the Visual Studio 2017 Preview. If you install the latest version Visual Studio 2017, you will be able to specify the build 15003.
As stated in the known issues, you'll need to be running Visual Studio 2017 Preview in order to use the SDK. While anything could change between now and when the Creators Update is released in April, this could signify a Visual Studio 2017 release that coincides with the new feature update. It seems reasonable that it would be coming soon, as there has been a release candidate available since November.
You can download SDK build 15003 right here.