title: What are the correct version numbers for C#?
body: <p>What are the correct version numbers for C#? What came out when? Why can't I find any answers about <strong><em>C# 3.5</em></strong>?</p>
  
  <p>This question is primarily to aid those who are searching for an answer using an incorrect version number, e.g. <strong><em>C# 3.5</em></strong>. The hope is that anyone failing to find an answer with the wrong version number will find <em>this</em> question and then search again with the right version number.</p>