C# 12 features: ExperimentalAttribute

Part 7 in a series on new language features in C# 12.

Experimental attribute

Mark a type, method, or assembly with the ExperimentalAttribute and the compiler will generate a warning. You will need to explicitly suppress this warning to consume the experimental code.

[Experimental("DAVID01")]
public class ExperimentalClass
{
    public void Thing()
    {
        //
    }
}

In some ways, this feels to me like the opposite of the ObsoleteAttribute.

Further reading

https://learn.microsoft.com/dotnet/csharp/language-reference/attributes/general?WT.mc_id=DOP-MVP-5001655#experimental-attribute

Example source

https://github.com/flcdrg/csharp-12/blob/main/07-experimental/ExperimentalClass.cs