For the .NET Framework:
| Version | Version Number | Release Date |
|---|---|---|
| 1.0 | 1.0.3705.0 | 2002-01-05 |
| 1.1 | 1.1.4322.573 | 2003-04-01 |
| 2.0 | 2.0.50727.42 | 2005-11-07 (C# 2.0 Released) |
| 3.0 | 3.0.4506.30 | 2006-11-06 |
| 3.5 | 3.5.21022.8 | 2007-11-19 (C# 3.0 Released) |
What can you do with C# 3.0?
Have a read on these links: