Take advantage of default interface methods in C# 8.0 to add new methods to an interface without breaking ... He was a speaker at the Spark IT 2010 event and at the Dr. Dobb’s Conference 2014 ...

However, from C# 8.0 onward, an interface can contain default implementations for its members, i.e. methods and properties. No instantiation: You can use both abstract classes and interfaces to ...