| Date | Framework | Visual Studio | C# | CLR |
| 2002.2 | 1.0 | Visual Studio 2002 | 1.0 | 1.0 |
| 2003.4 | 1.1 | Visual Studio 2003 | 1.2 | 1.1 |
| 2005.11 | 2.0 | Visual Studio 2005 | 2.0 | 2.0 |
| 2006.11 | 3.0 | (Extensions to 2005) | N/A | 2.0 |
| 2007.11 | 3.5 | Visual Studio 2008 | 3.0 | 2.0 sp1 |
| 2010.4 | 4 | Visual Studio 2010 | 4.0 | 4.0 (there was no version 3.0) |
| 2012.8 | 4.5 | Visual Studio 2012 | 5.0 | 4.0 or 4.5a |
a. This depends on your point of view. You‘ll find out more later.
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原文：http://www.cnblogs.com/wanghaibin/p/3764992.html