How to use .NET 7 preview?

I am trying to use .NET7 (Version:

7.0.100-preview.7.22377.5

7.0.100-preview.7.22377.5

) and I am using VS 2022 (latest preview), but when I set my project to .net7 it uses the .NET7 RC1 as version? I wanna test the

IRouteHandlerFilter

IRouteHandlerFilter

which got merged past preview 3.

How to use .NET 7 preview? - C#