title: List of new features in C# 2.0, 3.0 and 4.0
body: <p>I worked on the .NET 1.1 project for a long time, and I was stuck at C# 1.0 and now I would like to catch up with the latest and greatest.</p>
  
  <p>Google returned a lot of information on new features in C# v2.0, but for the versions 3 and 4 I found only partial information.</p>
  
  <p>Is there somewhere on the Internet some list of all new features introduced in C# in v2.0, v3.0 and v4.0?</p>