You can read more about this features on the official webpage.
The following features are available in the 6.0.200 version of the .NET SDK. They’re available in Visual Studio 2022 version 17.2.
These are currently preview features and any feature may change before its final release.
- generic attributes;
- static abstract members in interfaces;
- list patterns;
- newlines in string interpolation expressions;
- improved method group conversion to delegate;
- raw string literals.
Basically not all of these features may not all be released in C# 11.