ASP.NET Core and Visual Studio 2015
ASP.NET Core and Visual Studio 2015 include the following new features:
New flexible and cross-platform runtime
New modular HTTP request pipeline
Cloud-ready environment configuration
Unified programming model that combines MVC, Web API, and Web Pages
Ability to see changes without re-building the project
Run multiple .NET Framework versions side-by-side
Ability to self-host or host on IIS
New tools in Visual Studio 2015, including Grunt, Gulp, Bower, and NPM integration
Open source in GitHub
For more information, see ASP.NET Core on the ASP.NET site.