Looking for Visual Studio 2015 SDK download… wait, read this first?

As you know now Visual Studio 2015 is RTM-ed and you have started to use it for building applications. Recently I came across a query from a developer, from where they can download Visual Studio 2015 SDK – as they used it to create tool windows, menu commands, editor extensions, isolated shell projects, and other extensions for Visual Studio. Unlike the earlier versions, the Visual Studio 2015 Software Development Kit (SDK) is no longer offered as a separate download. Instead, Visual Studio Extensibility Tools (SDK and templates) are included as an optional feature in Visual Studio setup. For more information you can refer, https://msdn.microsoft.com/en-us/library/bb166441(v=vs.140).aspx