There are various versions of C# language, CLR and .Net framework.
| C# Version | CLR Version | .Net Framework Version | Visual Studio Version |
| 1.0 | 1.0 | 1.0 | Visual Studio.Net |
| 1.1 | 1.1 | 1.1 (SP 1) | Visual Studio.Net 2003 |
| 2.0 | 2.0 | 2.0 (SP 2) | Visual Studio 2005 |
| 3.0 (SP 2) | |||
| 3.0 | 2.0 | 3.5 (SP 1) | Visual Studio 2008 |
| 4.0 | 4.0 | 4.0 | Visual Studio 2010 |
| 5.0 | 4.5 | 4.5 | Visual Studio 2012 |
Thanks,
Bimal
