Oliver has presented on topics around Functional Programming in C# for over 15 years. In 2008 there was C# 3.0, and it brought lots of functional concepts to the language. In recent years we have seen new C# language versions with a similar focus, and so it is time to reevaluate: how good is C# in 2024 and beyond, when viewed through Functional Programming glasses? Of course this is about language features you may have seen elsewhere - but the kind of assessment and classification Oliver applies to those features on the basis of his extended FP experience is unique to this talk. As usual, loads of code examples!