Microsoft keeps marching .NET forward with an incredible amount of features on its journey to general availability. Some notable new offerings include:
.NET MAUI or Multi-platform App UI which allows developers to build applications for Windows, macOS, iOS and Android sharing a single codebase and tooling.
ASP.NET Blazor hybrid apps which helps developers build cross-platform web based desktop experiences that leverage native device capabilities.
Expanded ARM support for both Apple Silicon and ARM64.
To round it all up there are numerous performance improvements across the board. Quicker builds and smoother debugging experience are both very welcome changes to the platform.
For more information check out the official .NET Blog and Build portal.