Exchange Server Release dates
| Product name | Build number | Date |
| Microsoft Exchange Server 2003 | 6.5.6944 | 9/28/2003 |
| Microsoft Exchange Server 2003 SP1 | 6.5.7226 | 5/25/2004 |
| Microsoft Exchange Server 2003 SP2 | 6.5.7638 | 10/19/2005 |
| Microsoft Exchange Server 2007 | 8.0.685.24 | 12/9/2006 |
| Microsoft Exchange Server 2007 | 8.0.685.25 | 12/9/2006 |
| Microsoft Exchange Server 2007 SP1 | 8.1.240.6 | 11/29/2007 |
| Microsoft Exchange Server 2007 SP2 | 8.2.176.2 | 8/24/2009 |
| Microsoft Exchange Server 2007 SP3 | 8.3.083.6 | 6/20/2010 |
| Microsoft Exchange Server 2010 | 14.0.639.21 | 11/9/2009 |
| Microsoft Exchange Server 2010 SP1 | 14.1.218.15 | 8/24/2010 |
| Microsoft Exchange Server 2010 SP2 | 14.2.247.5 | 12/4/2011 |
| Microsoft Exchange Server 2010 SP3 | 14.3.123.4 | 2/12/2013 |
| Microsoft Exchange Server 2013 | 15.0.516.32 | 10/11/2012 |
| Microsoft Exchange Server 2016 | 15.1.225.42 | 10/01/2015 |
Exchange Server 2007 Service Pack 1
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2007 SP1 | 8.1.240.6 | 11/29/2007 | |
| Update Rollup 1 for Exchange Server 2007 SP1 | 8.1.263.1 | 2/28/2008 | KB945684  |
| Update Rollup 2 for Exchange Server 2007 SP1 | 8.1.278.2 | 5/8/2008 | KB948016 |
| Update Rollup 3 for Exchange Server 2007 SP1 | 8.1.291.2 | 7/8/2008 | KB949870 |
| Update Rollup 4 for Exchange Server 2007 SP1 | 8.1.311.3 | 10/7/2008 | KB952580 |
| Update Rollup 5 for Exchange Server 2007 SP1 | 8.1.336.1 | 11/20/2008 | KB953467 |
| Update Rollup 6 for Exchange Server 2007 SP1 | 8.1.340.1 | 2/10/2009 | KB959241 |
| Update Rollup 7 for Exchange Server 2007 SP1 | 8.1.359.2 | 3/18/2009 | KB960384 |
| Update Rollup 8 for Exchange Server 2007 SP1 | 8.1.375.2 | 5/19/2009 | KB968012 |
| Update Rollup 9 for Exchange Server 2007 SP1 | 8.1.393.1 | 7/17/2009 | KB970162 |
| Update Rollup 10 for Exchange Server 2007 SP1 | 8.1.436.0 | 4/9/2010 | KB981407 |
Exchange Server 2007 Service Pack 2
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2007 SP2 | 8.2.176.2 | 8/24/2009 | |
| Update Rollup 1 for Exchange Server 2007 SP2 | 8.2.217.3 | 11/19/2009 | KB971534 |
| Update Rollup 2 for Exchange Server 2007 SP2 | 8.2.234.1 | 1/22/2010 | KB972076 |
| Update Rollup 3 for Exchange Server 2007 SP2 | 8.2.247.2 | 3/17/2010 | KB979784 |
| Update Rollup 4 for Exchange Server 2007 SP2 | 8.2.254.0 | 4/9/2010 | KB981383 |
| Update Rollup 5 for Exchange Server 2007 SP2 | 8.2.305.3 | 12/7/2010 | KB2407132 |
Exchange Server 2007 Service Pack 3
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2007 SP3 | 8.3.083.6 | 6/20/2010 | |
| Update Rollup 1 for Exchange Server 2007 SP3 | 8.3.106.2 | 9/9/2010 | KB2279665 |
| Update Rollup 2 for Exchange Server 2007 SP3 | 8.3.137.3 | 12/10/2010 | KB2407025 |
| Update Rollup 3 for Exchange Server 2007 SP3 | 8.3.159.0 | 3/2/2011 | KB2492691 |
| Update Rollup 3-v2 for Exchange Server 2007 SP3 | 8.3.159.2 | 3/30/2011 | KB2530488 |
| Update Rollup 4 for Exchange Server 2007 SP3 | 8.3.192.1 | 7/7/2011 | KB2509911 |
| Update Rollup 5 for Exchange Server 2007 SP3 | 8.3.213.1 | 9/21/2011 | KB2602324 |
| Update Rollup 6 for Exchange Server 2007 SP3 | 8.3.245.2 | 1/25/2012 | KB2608656 |
| Update Rollup 7 for Exchange Server 2007 SP3 | 8.3.264.0 | 4/16/2012 | KB2655203 |
| Update Rollup 8 for Exchange Server 2007 SP3 | 8.3.279.3 | 8/13/2012 | KB2734232 |
| Update Rollup 8-v2 for Exchange Server 2007 SP3 | 8.3.279.5 | 10/9/2012 | KB2756497 |
| Update Rollup 8-v3 for Exchange Server 2007 SP3 | 8.3.279.6 | 11/13/2012 | KB2778154 |
| Update Rollup 9 for Exchange Server 2007 SP3 | 8.3.297.2 | 12/10/2012 | KB2746157 |
| Update Rollup 10 for Exchange Server 2007 SP3 | 8.3.298.3 | 2/11/2013 | KB2788321 |
| Update Rollup 11 for Exchange Server 2007 SP3 | 8.3.327.1 | 8/13/2013 | KB2873746 |
| Update Rollup 12 for Exchange Server 2007 SP3 | ?8.3.342.4 | 12/10/2013 | KB2903911 |
| Update Rollup 13 for Exchange Server 2007 SP3 | 8.3.348.1 | 2/25/2014 | KB2917522 |
| Update Rollup 14 for Exchange Server 2007 SP3 | 8.3.379.2 | 8/26/2014 | KB2936861 |
| Update Rollup 15 for Exchange Server 2007 SP3 | 8.3.389.2 | 12/9/2014 | KB2996150 |
| Update Rollup 16 for Exchange Server 2007 SP3 | 8.3.406.0 | 3/17/2015 | KB3030086 |
| Update Rollup 17 for Exchange Server 2007 SP3 | 8.3.417.1 | 6/16/2015 | KB3056710 |
| Update Rollup 18 for Exchange Server 2007 SP3 | 8.3.445.0 | 12/10/2015 | KB3078672 |
| Update Rollup 19 for Exchange Server 2007 SP3 | 8.3.459.0 | 3/14/2016 | KB3141352 |
| Update Rollup 20 for Exchange Server 2007 SP3 | 8.3.468.0 | 6/12/2016 | KB3184728 |
| Update Rollup 21 for Exchange Server 2007 SP3 | 8.4.485.1 | 9/12/2016 | KB3184711 |
| Update Rollup 22 for Exchange Server 2007 SP3 | 8.3.502.0 | 12/13/2016 | KB3184712 |
| Update Rollup 23 for Exchange Server 2007 SP3 | 8.3.517.0 | 3/20/2017 | KB4011325 |
Exchange Server 2010
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2010 RTM | 14.0.639.21 | 11/9/2009 | |
| Update Rollup 1 for Exchange Server 2010 RTM | 14.0.682.1 | 12/9/2009 | KB976573 |
| Update Rollup 2 for Exchange Server 2010 RTM | 14.0.689.0 | 3/4/2010 | KB979611 |
| Update Rollup 3 for Exchange Server 2010 RTM | 14.0.694.0 | 4/9/2010 | KB981401 |
| Update Rollup 4 for Exchange Server 2010 RTM | 14.0.702.1 | 6/17/2010 | KB982639 |
| Update Rollup 5 for Exchange Server 2010 RTM | 14.0.726.0 | 12/13/2010 | KB2407113 |
Exchange Server 2010 Service Pack 1
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2010 SP1 | 14.1.218.15 | 8/24/2010 | |
| Update Rollup 1 for Exchange Server 2010 SP1 | 14.1.255.2 | 10/4/2010 | KB2407028 |
| Update Rollup 2 for Exchange Server 2010 SP1 | 14.1.270.1 | 12/9/2010 | KB2425179 |
| Update Rollup 3 for Exchange Server 2010 SP1 | 14.1.289.3 | 3/7/2011 | KB2492690 |
| Update Rollup 3-v3 for Exchange Server 2010 SP1 | 14.1.289.7 | 4/1/2011 | KB2529939 |
| Update Rollup 4 for Exchange Server 2010 SP1 | 14.1.323.1 | 6/22/2011 | KB2509910 |
| Update Rollup 4-v2 for Exchange Server 2010 SP1 | 14.1.323.6 | 7/27/2011 | KB2579150 |
| Update Rollup 5 for Exchange Server 2010 SP1 | 14.1.339.1 | 8/23/2011 | KB2582113 |
| Update Rollup 6 for Exchange Server 2010 SP1 | 14.1.355.2 | 10/27/2011 | KB2608646 |
| Update Rollup 7 for Exchange Server 2010 SP1 | 14.1.421.0 | 8/13/2012 | KB2743248 |
| Update Rollup 7-v2 for Exchange Server 2010 SP1 | 14.1.421.2 | 10/9/2012 | KB2756496 |
| Update Rollup 7-v3 for Exchange Server 2010 SP1 | 14.1.421.3 | 11/12/2012 | KB2778158 |
| Update Rollup 8 for Exchange Server 2010 SP1 | 14.1.438.0 | 12/10/2012 | KB2787763 |
Exchange Server 2010 Service Pack 2
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2010 SP2 | 14.2.247.5 | 12/4/2011 | |
| Update Rollup 1 for Exchange Server 2010 SP2 | 14.2.283.3 | 2/13/2012 | KB2645995 |
| Update Rollup 2 for Exchange Server 2010 SP2 | 14.2.298.4 | 4/16/2012 | KB2661854 |
| Update Rollup 3 for Exchange Server 2010 SP2 | 14.2.309.2 | 5/29/2012 | KB2685289 |
| Update Rollup 4 for Exchange Server 2010 SP2 | 14.2.318.2 | 8/13/2012 | KB2706690 |
| Update Rollup 4-v2 for Exchange Server 2010 SP2 | 14.2.318.4 | 10/9/2012 | KB2756485 |
| Update Rollup 5 for Exchange Server 2010 SP2 | 14.2.328.5 | 11/13/2012 | KB2719800 |
| Update Rollup 5-v2 for Exchange Server 2010 SP2 | 14.2.328.10 | 12/10/2012 | KB2785908 |
| Update Rollup 6 for Exchange Server 2010 SP2 | 14.2.342.3 | 2/11/2013 | KB2746164 |
| Update Rollup 7 for Exchange Server 2010 SP2 | 14.2.375.0 | 8/13/2013 | KB2874216 |
| Update Rollup 8 for Exchange Server 2010 SP2 | 14.2.390.3 | 12/10/2013 | KB2903903 |
Exchange Server 2010 Service Pack 3
| Product name | Build number | Date | KB |
| Microsoft Exchange Server 2010 SP3 | 14.3.123.4 | 2/12/2013 | KB2808208 |
| Update Rollup 1 for Exchange Server 2010 SP3 | 14.3.146.0 | 5/29/2013 | KB2803727 |
| Update Rollup 2 for Exchange Server 2010 SP3 | 14.3.158.1 | 8/13/2013 | KB2866475 |
| Update Rollup 3 for Exchange Server 2010 SP3 | 14.3.169.1 | 11/25/2013 | KB2891587 |
| Update Rollup 4 for Exchange Server 2010 SP3 | 14.3.174.1 | 12/10/2013 | KB2905616 |
| Update Rollup 5 for Exchange Server 2010 SP3 | 14.3.181.6 | 2/25/2014 | KB2917508 |
| Update Rollup 6 for Exchange Server 2010 SP3 | 14.3.195.1 | 5/23/2014 | KB2936871 |
| Update Rollup 7 for Exchange Server 2010 SP3 | 14.3.210.2 | 8/26/2014 | KB2961522 |
| Update Rollup 8-v2 for Exchange Server 2010 SP3 | ?14.3.224.2 | 12/12/2014 | KB2986475 |
| Update Rollup 9 for Exchange Server 2010 SP3 | ?14.3.235.1 | 3/17/2015 | KB3030085 |
| Update Rollup 10 for Exchange Server 2010 SP3 | 14.3.248.2 | 6/16/2015 | KB3049853 |
| Update Rollup 11 for Exchange Server 2010 SP3 | 14.3.266.1 | 9/11/2015 | KB3078674 |
| Update Rollup 12 for Exchange Server 2010 SP3 | 14.3.279.2 | 12/10/2015 | KB3096066 |
| Update Rollup 13 for Exchange Server 2010 SP3 | 14.3.294.0 | 3/14/2016 | KB3141339 |
| Update Rollup 14 for Exchange Server 2010 SP3 | 14.3.301.0 | 6/15/2016 | KB3151097 |
| Update Rollup 15 for Exchange Server 2010 SP3 | 14.3.319.2 | 9/13/2016 | KB3184728 |
| Update Rollup 16 for Exchange Server 2010 SP3 | 14.3.339.0 | 12/12/2016 | KB3184730 |
| Update Rollup 17 for Exchange Server 2010 SP3 | 14.3.352.0 | 3/20/2017 | KB4011326 |
| Update Rollup 18 for Exchange Server 2010 SP3 | 14.3.361.1 | 7/6/2017 | KB4018588 |
Exchange Server 2013
The Exchange Server 2013 table has been moved to Wiki page Exchange Server 2013 and 2016 Build Numbers (with Cumulative Updates)
Exchange Server 2016
The Exchange Server 2016 table has been moved to Wiki page Exchange Server 2013 and 2016 Build Numbers (with Cumulative Updates)