Microsoft .NET Framework full changelog

What’s new in .NET 5:
NET 5.0 is the next major release of .NET Core following 3.1. We named this new release .NET 5.0 instead of .NET Core 4.0 for two reasons:
We skipped version numbers 4.x to avoid confusion with .NET Framework 4.x.
We dropped “Core” from the name to emphasize that this is the main implementation of .NET going forward. .NET 5.0 supports more types of apps and more platforms than .NET Core or .NET Framework.
ASP.NET Core 5.0 is based on .NET 5.0 but retains the name “Core” to avoid confusing it with ASP.NET MVC 5. Likewise, Entity Framework Core 5.0 retains the name “Core” to avoid confusing it with Entity Framework 5 and 6.
.NET 5.0 includes the following improvements and new features compared to .NET Core 3.1:
C# updates
F# updates
Visual Basic updates
System.Text.Json new features
Single file apps
App trimming
Windows ARM64 and ARM64 intrinsics
Tooling support for dump debugging
The runtime libraries are 80% annotated for nullable reference types