What is a first class .NET language?

Question

So I was listening to Hanselminutes Podcast 158 where Joel Spolsky mentions that Wasabi is a first class .NET language. What does that mean?

Answer 1

Describing a language as a first class .NET language is a subjective description. It refers to a .NET language which supports all of the .NET CLR features (in the real world I belive that this means it supports most of the features).

It has also traditionaly been used to describe a language that helps to shape the .NET CLR, meaning that I doubt Wasabi is a true first class language.

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Update

Quote from an article describing how F# is a first class .NET language.

"This means that F# runs on the CLR, embraces object-oriented programming, and has features to ensure a smooth integration with the .NET Framework."

Answer 2

As far as I know, there is no clear definition of "first class .NET language". I think it simply refers to those languages that support most of the features offered by the CLR.