Take advantage of default interface methods in C# 8.0 to add new methods to an interface without breaking existing implementations.

Default interface methods are included in a new feature proposal for C# 8, which will allow developers to use the traits programming technique on the .NET platform.

Microsoft unveiled a preview of authoring support in an update to the C#/WinRT tool used to help C# developers more easily work with interfaces to the Windows Runtime, the underlying infrastructure ...