ASP.NET Core is a new open-source and cross-platform framework for building modern cloud based internet connected applications, such as web apps, IoT apps and mobile backends. ASP.NET Core apps can run on .NET Core or on the full .NET Framework.
To try ASP.NET Core, download Visual Studio 2017 and install the ASP.NET and web development workload. Review our known issues page for an up to date list of problems and workarounds. If you encounter any issues not already listed, report them through our Developer Community site, where you can track the status and see issues reported by others as well.