Microsoft Exchange Server Versions



What version of Exchange Server do I have?

This unofficial build chart lists all of the known KB articles, hotfixes, update rollups and other builds of MS Exchange Server 2013, 2010, 2007, 2003, 2000, 5.5, 5.0 and 4.0 that have been released.

Useful articles:

Quick summary:

↓ Click for detail view RTM (no SP) SP1 SP2 SP3 SP4 SP5
Exchange Server 2013
codename Exchange 15
15.0.516.32
December 3, 2012
15.0.847.32
February 25, 2014
Exchange Server 2010
codename Exchange 14
14.0.639.21
November 9, 2009
14.1.218.15
August 24, 2010
14.2.247.5
December 4, 2011
14.3.123.4
February 12, 2013
Exchange Server 2007
codename E12/Exchange 12
8.0.685.24/25
March 8, 2007
8.1.240.6
November 29, 2007
8.2.176.2
August 24, 2009
8.3.83.6
June 20, 2010
Exchange Server 2003
codename Titanium
6.5.6944233
September 28, 2003
6.5.7226
May 25, 2004
6.5.7638
October 19, 2005
Exchange 2000 Server
codename Platinum
6.0.4417
November 29, 2000
6.0.4712
June 21, 2001
6.0.5762
December 5, 2001
6.0.6249
July 18, 2002
Exchange Server 5.5 5.5.1960
February 3, 1998
5.5.2232
August 5, 1998
5.5.2448
December 23, 1998
5.5.2650
September 9, 1999
5.5.2653
November 1, 2000
Exchange Server 5.0 5.0.1457
May 23, 1997
5.0.1458
June 18, 1997
5.0.1460
February 19, 1998
Exchange Server 4.0 4.0.837
April 1, 1996
4.0.838
May 1, 1996
4.0.993
July 19, 1996
4.0.994
October 29, 1996
4.0.995
March 28, 1997
4.0.996
May 5, 1998

All ExchangeServer service packs are cumulative, meaning that each new service pack contains all the fixes that are included with previous service packs and any new fixes.

You can comment here. If you know of a hotfix build or KB that we don't have listed here, please use the comments.