http://technet.microsoft.com/en-us/library/hh135098%28v=exchg.141%29.aspx
Exchange Server 2010 SP2 build numbers
| Product name | Release date | Build number |
|---|---|---|
| Update Rollup 4 v2 for Exchange Server 2010 Service Pack 2 | October 9, 2012 | 14.02.0318.004 |
| Update Rollup 4 for Exchange Server 2010 Service Pack 2 | August 13, 2012 | 14.02.0318.002 |
| Update Rollup 3 for Exchange Server 2010 Service Pack 2 | May 29, 2012 | 14.02.0309.002 |
| Update Rollup 2 for Exchange Server 2010 SP2 | April 16, 2012 | 14.02.0298.004 |
| Update Rollup 1 for Exchange Server 2010 SP2 | February 13, 2012 | 14.02.0283.003 |
| Exchange Server 2010 SP2 | December 4, 2011 | 14.2.247.5 |
Exchange Server 2010 SP1 build numbers
| Product name | Release date | Build number |
|---|---|---|
| Update Rollup 7 v2 for Exchange Server 2010 SP1 | October 10, 2012 | 14.01.0421.002 |
| Update Rollup 7 for Exchange Server 2010 SP1 | August 8, 2012 | 14.01.0421.000 |
| Update Rollup 6 for Exchange Server 2010 SP1 | October 27, 2011 | 14.01.0355.002 |
| Update Rollup 5 for Exchange Server 2010 SP1 | August 23, 2011 | 14.1.339.1 |
| Update Rollup 4 for Exchange Server 2010 SP1 | July 27, 2011 | 14.1.323.6 |
| Update Rollup 3 for Exchange Server 2010 SP1 | April 6, 2011 | 14.01.0289.007 |
| Update Rollup 2 for Exchange Server 2010 SP1 | December 9, 2010 | 14.01.0270.001 |
| Update Rollup 1 for Exchange Server 2010 SP1 | October 4, 2010 | 14.1.255.2 |
| Exchange Server 2010 SP1 | August 23, 2010 | 14.01.0218.015 |