Microsoft releases the next preview build of Visual Studio 2019. The latest version of Visual Studio 2019 (version 16.1 Preview 3) comes with IntelliCode. Addition to other improvements, it also includes an early preview of the XAML Designer for developers building .NET Core 3.0 WPF applications.
If you are on Preview channel, you wouldn't like to miss the IntelliCode and other improvements before anyone on the Release channel.