In the planned Version 3.0 release of its ASP.Net open source web framework, Microsoft will tighten up .Net Core integration, with users advised to think of ASP.Net Core as part of the .Net Core development platform.
ASP.Net Core is Microsoft’s cross-platform open source web framework that works with .Net Core, an open source subset of the .Net Framework.
Where to download ASP.Net Core
You can download the ASP.Net Core SDK and runtimes from Microsoft’s website.
Future version: What’s new in ASP.Net 3.0
Limitations and removals in ASP.Net 3.0