CRM 4 build and version numbers
| Version | Build Number | Released on | KB Article |
| RTM | 4.0.7333.3 | 12/19/2007 | |
| Rollup 1 | 4.0.7333.1113 | 11/24/2008 | |
| Rollup 2 | 4.0.7333.1312 or 4.0.7333.1316 | 1/15/2009, 2/8/2009 | |
| Rollup 3 | 4.0.7333.1408 | 3/12/2009 | |
| Rollup 4 | 4.0.7333.1551 | 5/7/2009 | |
| Rollup 5 | 4.0.7333.1644 or 4.0.7333.1645 | 7/2/2009 | |
| Rollup 6 | 4.0.7333.1750 | 9/27/2009 | |
| Rollup 7 | 4.0.7333.2138 | 10/22/2009 | |
| Rollup 8 | 4.0.7333.2542 | 12/17/2009 | |
| Rollup 9 | 4.0.7333.2644 | 02/11/2010 | |
| Rollup 10 | 4.0.7333.2741 | 04/08/2010 | |
| Rollup 11 | 4.0.7333.2861 or 4.0.7333.2862 | 06/03/2010 | |
| Rollup 12 | 4.0.7333.2935 | 08/02/2010 | |
| Rollup 13 | 4.0.7333.3018 | 09/23/2010 | |
| Rollup 14 | 4.0.7333.3135 | 11/18/2010 | |
| Rollup 15 | 4.0.7333.3231 | 01/13/2011 | |
| Rollup 16 | 4.0.7333.3335 | 03/10/2011 | |
| Rollup 17 | 4.0.7333.3414 | 05/05/2011 | |
| Rollup 18 | 4.0.7333.3531 | 06/30/2011 | |
| Rollup 19 | 4.0.7333.3628 | 09/25/2011 | |
| Rollup 20 | 4.0.7333.3732 | 11/10/2011 | 2550098 |
| Rollup 21 | 4.0.7333.3822 | 02/07/2012 | 2621054 |