In Visual Studio 2015 Preview, I see the following vNext templates in the \"New Project\" window:
In Visual Studio 2015 Preview Microsoft has renamed ASP.NET vNext
to ASP.NET 5
If you open http://www.asp.net/vnext, in every article vNext
is metioned as ASP.NET 5
VS 2015 Preview is going under ASP.net Core web application. If you cant see that one under templates you may go to this site and download .NET Core 1.0 for Visual Studio then install.