Microsoft releases Net Core 3.0 on September 23, 2019 for general availability.  Long term Net Core will be an improved & open source based replacement for Framework “dot net” to host & provide advanced Microsoft communications handling & control for applications

https://redmondmag.com/articles/2019/09/23/microsoft-releases-net-core-3-0.aspx

Announcing .NET Core 3.0

Watch the team and the community talk about .NET at .NET Conf, live NOW!

You can download .NET Core 3.0, for Windows, macOS, and Linux:

ASP.NET Core 3.0 and EF Core 3.0 are also releasing today.