You can use the information in this article to verify the version of Microsoft Exchange Server that is running in your organization.
This article is organized in sections that correspond to the major releases of Exchange. Each section lists build numbers for each Service Pack (SP), Cumulative Update (CU), Security Update (SU), Hotfix Update (HU), or Update Rollup (RU) of the specific Exchange release.
Links for the available downloads are also included.
Note
Releases are listed from the latest release to the earliest release.
Starting in the March 2021 Security Update (SU), we also include build numbers for Security Updates.
RTM stands for "release to manufacturing" (the first version of the product).
View the build number of an Exchange-based server
This section describes the various methods that you can use to view the build number of servers that are running Exchange Server.
This option only indicates the Cumulative Update (CU) status and does not reflect the installed Security Update (SU) or Hotfix Update (HU). To confirm the updates, please utilize option 1 or 2.
Exchange Server 2019
The table in this section provides build numbers and general release dates for each version of Microsoft Exchange Server 2019.
Update Rollup 8 v1 for Exchange Server 2010 SP3 (recalled)
December 9, 2014
14.3.224.1
14.03.0224.001
Update Rollup 7 for Exchange Server 2010 SP3
August 26, 2014
14.3.210.2
14.03.0210.002
Update Rollup 6 for Exchange Server 2010 SP3
May 27, 2014
14.3.195.1
14.03.0195.001
Update Rollup 5 for Exchange Server 2010 SP3
February 24, 2014
14.3.181.6
14.03.0181.006
Update Rollup 4 for Exchange Server 2010 SP3
December 9, 2013
14.3.174.1
14.03.0174.001
Update Rollup 3 for Exchange Server 2010 SP3
November 25, 2013
14.3.169.1
14.03.0169.001
Update Rollup 2 for Exchange Server 2010 SP3
August 8, 2013
14.3.158.1
14.03.0158.001
Update Rollup 1 for Exchange Server 2010 SP3
May 29, 2013
14.3.146.0
14.03.0146.000
Exchange Server 2010 SP3
February 12, 2013
14.3.123.4
14.03.0123.004
Build numbers for previous releases of Exchange Server 2010
Product name
Release date
Build number (short format)
Build number (long format)
Update Rollup 8 for Exchange Server 2010 SP2
December 9, 2013
14.2.390.3
14.02.0390.003
Update Rollup 7 for Exchange Server 2010 SP2
August 3, 2013
14.2.375.0
14.02.0375.000
Update Rollup 6 Exchange Server 2010 SP2
February 12, 2013
14.2.342.3
14.02.0342.003
Update Rollup 5 v2 for Exchange Server 2010 SP2
December 10, 2012
14.2.328.10
14.02.0328.010
Update Rollup 5 for Exchange Server 2010 SP2
November 13, 2012
14.3.328.5
14.03.0328.005
Update Rollup 4 v2 for Exchange Server 2010 SP2
October 9, 2012
14.2.318.4
14.02.0318.004
Update Rollup 4 for Exchange Server 2010 SP2
August 13, 2012
14.2.318.2
14.02.0318.002
Update Rollup 3 for Exchange Server 2010 SP2
May 29, 2012
14.2.309.2
14.02.0309.002
Update Rollup 2 for Exchange Server 2010 SP2
April 16, 2012
14.2.298.4
14.02.0298.004
Update Rollup 1 for Exchange Server 2010 SP2
February 13, 2012
14.2.283.3
14.02.0283.003
Exchange Server 2010 SP2
December 4, 2011
14.2.247.5
14.02.0247.005
Update Rollup 8 for Exchange Server 2010 SP1
December 10, 2012
14.1.438.0
14.01.0438.000
Update Rollup 7 v3 for Exchange Server 2010 SP1
November 13, 2012
14.1.421.3
14.01.0421.003
Update Rollup 7 v2 for Exchange Server 2010 SP1
October 10, 2012
14.1.421.2
14.01.0421.002
Update Rollup 7 for Exchange Server 2010 SP1
August 8, 2012
14.1.421.0
14.01.0421.000
Update Rollup 6 for Exchange Server 2010 SP1
October 27, 2011
14.1.355.2
14.01.0355.002
Update Rollup 5 for Exchange Server 2010 SP1
August 23, 2011
14.1.339.1
14.01.0339.001
Update Rollup 4 for Exchange Server 2010 SP1
July 27, 2011
14.1.323.6
14.01.0323.006
Update Rollup 3 for Exchange Server 2010 SP1
April 6, 2011
14.1.289.7
14.01.0289.007
Update Rollup 2 for Exchange Server 2010 SP1
December 9, 2010
14.1.270.1
14.01.0270.001
Update Rollup 1 for Exchange Server 2010 SP1
October 4, 2010
14.1.255.2
14.01.0255.002
Exchange Server 2010 SP1
August 23, 2010
14.1.218.15
14.01.0218.015
Update Rollup 5 for Exchange Server 2010
December 13, 2010
14.0.726.0
14.00.0726.000
Update Rollup 4 for Exchange Server 2010
June 10, 2010
14.0.702.1
14.00.0702.001
Update Rollup 3 for Exchange Server 2010
April 13, 2010
14.0.694.0
14.00.0694.000
Update Rollup 2 for Exchange Server 2010
March 4, 2010
14.0.689.0
14.00.0689.000
Update Rollup 1 for Exchange Server 2010
December 9, 2009
14.0.682.1
14.00.0682.001
Exchange Server 2010 RTM
November 9, 2009
14.0.639.21
14.00.0639.021
Exchange Server 2007
The tables in this section provide build numbers and general release dates for each version of Microsoft Exchange Server 2007.
Note
The version information for Exchange Server 2007 SP1 is displayed correctly in the Exchange Management Console, in the Exchange Management Shell, and in the About Exchange Server 2007 Help dialog box. However, after you apply Exchange 2007 SP1 to an Edge Transport server that's running the RTM version of Exchange 2007, the version information for the Edge Transport server isn't updated in the Exchange Management Console unless the Edge Transport server is resubscribed to the Active Directory site. This is because the Edge Transport server doesn't directly update Active Directory by using any configuration information. Instead, the version information for Edge Transport servers is recorded in Active Directory during the creation of an Edge Subscription.
Product name
Release date
Build number (short format)
Build number (long format)
Update Rollup 23 for Exchange Server 2007 SP3
March 21, 2017
8.3.517.0
8.03.0517.000
Update Rollup 22 for Exchange Server 2007 SP3
December 13, 2016
8.3.502.0
8.03.0502.000
Update Rollup 21 for Exchange Server 2007 SP3
September 20, 2016
8.3.485.1
8.03.0485.001
Update Rollup 20 for Exchange Server 2007 SP3
June 21, 2016
8.3.468.0
8.03.0468.000
Update Rollup 19 forExchange Server 2007 SP3
March 15, 2016
8.3.459.0
8.03.0459.000
Update Rollup 18 forExchange Server 2007 SP3
December, 2015
8.3.445.0
8.03.0445.000
Update Rollup 17 forExchange Server 2007 SP3
June 17, 2015
8.3.417.1
8.03.0417.001
Update Rollup 16 for Exchange Server 2007 SP3
March 17, 2015
8.3.406.0
8.03.0406.000
Update Rollup 15 for Exchange Server 2007 SP3
December 9, 2014
8.3.389.2
8.03.0389.002
Update Rollup 14 for Exchange Server 2007 SP3
August 26, 2014
8.3.379.2
8.03.0379.002
Update Rollup 13 for Exchange Server 2007 SP3
February 24, 2014
8.3.348.2
8.03.0348.002
Update Rollup 12 for Exchange Server 2007 SP3
December 9, 2013
8.3.342.4
8.03.0342.004
Update Rollup 11 for Exchange Server 2007 SP3
August 13, 2013
8.3.327.1
8.03.0327.001
Update Rollup 10 for Exchange Server 2007 SP3
February 11, 2013
8.3.298.3
8.03.0298.003
Update Rollup 9 for Exchange Server 2007 SP3
December 10, 2012
8.3.297.2
8.03.0297.002
Update Rollup 8-v3 for Exchange Server 2007 SP3
November 13, 2012
8.3.279.6
8.03.0279.006
Update Rollup 8-v2 for Exchange Server 2007 SP3
October 9, 2012
8.3.279.5
8.03.0279.005
Update Rollup 8 for Exchange Server 2007 SP3
August 13, 2012
8.3.279.3
8.03.0279.003
Update Rollup 7 for Exchange Server 2007 SP3
April 16, 2012
8.3.264.0
8.03.0264.000
Update Rollup 6 for Exchange Server 2007 SP3
January 26, 2012
8.3.245.2
8.03.0245.002
Update Rollup 5 for Exchange Server 2007 SP3
September 21, 2011
8.3.213.1
8.03.0213.001
Update Rollup 4 for Exchange Server 2007 SP3
May 28, 2011
8.3.192.1
8.03.0192.001
Update Rollup 3-v2 for Exchange Server 2007 SP3
March 30, 2011
8.3.159.2
8.03.0159.002
Update Rollup 2 for Exchange Server 2007 SP3
December 10, 2010
8.3.137.3
8.03.0137.003
Update Rollup 1 for Exchange Server 2007 SP3
September 9, 2010
8.3.106.2
8.03.0106.002
Exchange Server 2007 SP3
June 7, 2010
8.3.83.6
8.03.0083.006
Build numbers for previous releases of Exchange Server 2007
Product name
Release date
Build number (short format)
Build number (long format)
Update Rollup 5 for Exchange Server 2007 SP2
December 7, 2010
8.2.305.3
8.02.0305.003
Update Rollup 4 for Exchange Server 2007 SP2
April 9, 2010
8.2.254.0
8.02.0254.000
Update Rollup 3 for Exchange Server 2007 SP2
March 17, 2010
8.2.247.2
8.02.0247.002
Update Rollup 2 for Exchange Server 2007 SP2
January 22, 2010
8.2.234.1
8.02.0234.001
Update Rollup 1 for Exchange Server 2007 SP2
November 19, 2009
8.2.217.3
8.02.0217.003
Exchange Server 2007 SP2
August 24, 2009
8.2.176.2
8.02.0176.002
Update Rollup 10 for Exchange Server 2007 SP1
April 13, 2010
8.1.436.0
8.01.0436.000
Update Rollup 9 for Exchange Server 2007 SP1
July 16, 2009
8.1.393.1
8.01.0393.001
Update Rollup 8 for Exchange Server 2007 SP1
May 19, 2009
8.1.375.2
8.01.0375.002
Update Rollup 7 for Exchange Server 2007 SP1
March 18, 2009
8.1.359.2
8.01.0359.002
Update Rollup 6 for Exchange Server 2007 SP1
February 10, 2009
8.1.340.1
8.01.0340.001
Update Rollup 5 for Exchange Server 2007 SP1
November 20, 2008
8.1.336.1
8.01.0336.01
Update Rollup 4 for Exchange Server 2007 SP1
October 7, 2008
8.1.311.3
8.01.0311.003
Update Rollup 3 for Exchange Server 2007 SP1
July 8, 2008
8.1.291.2
8.01.0291.002
Update Rollup 2 for Exchange Server 2007 SP1
May 9, 2008
8.1.278.2
8.01.0278.002
Update Rollup 1 for Exchange Server 2007 SP1
February 28, 2008
8.1.263.1
8.01.0263.001
Exchange Server 2007 SP1
November 29, 2007
8.1.240.6
8.01.0240.006
Update Rollup 7 for Exchange Server 2007
July 8, 2008
8.0.813.0
8.00.0813.000
Update Rollup 6 for Exchange Server 2007
February 21, 2008
8.0.783.2
8.00.0783.002
Update Rollup 5 for Exchange Server 2007
October 25, 2007
8.0.754.0
8.00.0754.000
Update Rollup 4 for Exchange Server 2007
August 23, 2007
8.0.744.0
8.00.0744.000
Update Rollup 3 for Exchange Server 2007
June 28, 2007
8.0.730.1
8.00.0730.001
Update Rollup 2 for Exchange Server 2007
May 8, 2007
8.0.711.2
8.00.0711.002
Update Rollup 1 for Exchange Server 2007
April 17, 2007
8.0.708.3
8.00.0708.003
Exchange Server 2007 RTM
March 8, 2007
8.0.685.25
8.00.0685.025
Exchange Server 2003
The following table lists the build numbers and general release dates for each version of Microsoft Exchange Server 2003. To view the build number of Exchange Server 2003, open the Properties dialog box of the server object.
Product name
Release date
Build number
Exchange Server 2003 post-SP2
August 2008
6.5.7654.4
Exchange Server 2003 post-SP2
March 2008
6.5.7653.33
Exchange Server 2003 SP2
October 19, 2005
6.5.7683
Exchange Server 2003 SP1
May 25, 2004
6.5.7226
Exchange Server 2003
September 28, 2003
6.5.6944
Exchange 2000 Server
The following table lists the build numbers and general release dates for each version of Microsoft Exchange 2000 Server. To view the build number of Exchange 2000 Server, open the Properties dialog box of the server object.
Product name
Release date
Build number
Exchange 2000 Server post-SP3
August 2008
6.0.6620.7
Exchange 2000 Server post-SP3
March 2008
6.0.6620.5
Exchange 2000 Server post-SP3
August 2004
6.0.6603
Exchange 2000 Server post-SP3
April 2004
6.0.6556
Exchange 2000 Server post-SP3
September 2003
6.0.6487
Exchange 2000 Server SP3
July 18, 2002
6.0.6249
Exchange 2000 Server SP2
November 29, 2001
6.0.5762
Exchange 2000 Server SP1
June 21, 2001
6.0.4712
Exchange 2000 Server
November 29, 2000
6.0.4417
Exchange Server 5.5
The following table lists the build numbers and general release dates for each version of Microsoft Exchange Server version 5.5.
Product name
Release date
Build number
Exchange Server version 5.5 SP4
November 1, 2000
5.5.2653
Exchange Server version 5.5 SP3
September 9, 1999
5.5.2650
Exchange Server version 5.5 SP2
December 23, 1998
5.5.2448
Exchange Server version 5.5 SP1
August 5, 1998
5.5.2232
Exchange Server version 5.5
February 3, 1998
5.5.1960
Exchange Server 5.0
Product name
Release date
Build number
Exchange Server 5.0 SP2
February 19, 1998
5.0.1460
Exchange Server 5.0 SP1
June 18, 1997
5.0.1458
Exchange Server 5.0
May 23, 1997
5.0.1457
Exchange Server 4.0
The following table lists the build numbers and general release dates for each version of Microsoft Exchange Server 4.0.