.NET Core 2.1.6 is available for download and usage in your environment. This release includes .NET Core 2.1.6, ASP.NET Core 2.1.6 and .NET Core SDK 2.1.500. All fixes of note can be seen in the 2.1.6 commits list. 

The current plan is that C# 8.0 will ship at the same time as .NET Core 3.0. However, the features will start to come alive with the previews of Visual Studio 2019 that we are working on.  

Since we shipped .NET Standard 2.0 about a year ago, we’ve shipped two updates to .NET Core 2.1 and are about to release .NET Core 2.2. It’s time to update the standard to include some of the new concepts as well as a number of small improvements

ASP.NET Core Ditching .NET Framework, Will Be 'Part of .NET Core' Going Forward 

The future of JSON in .NET Core 3.0 

A first look at changes coming in ASP.NET Core 3.0 

.NET Application Architecture Guidance 

Building a .NET IDE with JetBrains Rider 

"So you shouldn't feel pressured to move off .NET Framework, but just know that it's going to be much more highly targeted compatible fixes kind of going forward and we recommend that all new development that you start on .NET is on .NET Core if possible,"