This table shows the version and build numbers for WSS 3.0 and MOSS 2007.
The version of the current installation can easily be looked up in the Central Administration: Operations > Topology and Services > Servers in farm.
| Build Number | Version String |
| 4518 | RTM / first release |
| 6219 | Service Pack 1 |
| 6318 | Infrastructure Update |
| 6327 | Cumulative Update October 2008 |
| 6335 | Cumulative Update December 2008 |
| 6341 | Cumulative Update February 2009 |
| 6421 | Service Pack 2 |
| 6504 | Cumulative Update April 2009 |
| 6510 | Cumulative Update June 2009 |
| 6520 | Cumulative Update October 2009 |
| 6524 | Cumulative Update December 2009 |
Latest Version: Service Pack 2 (English, German); CU December 09 (WSS, MOSS)
