It’s .NET’s 20th birthday: 20 years since Microsoft released v1.0 of their managed runtime, a Base Class Library, a couple of application frameworks, and the C# programming language. So I thought I’d do a retrospective of my 20 years working with .NET, because I’m extraordinarily vain and I assume people want to read stuff like this.1.0 beta It was some time in late 2001 when Microsoft released the beta version of their new framework. I’d just returned to programming after a brief stint as a professiona...