Understanding Exchange 2007 Version and Build Numbers

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Última modificación del tema: 2007-08-13

When you look at the version and build numbers of Exchange servers in your Exchange organization, you may be confused by what you see.

The RTM build of Exchange Server 2007 is 685.25. When you view the Exchange version information in the Windows registry, the version appears as 685.25. However, the Exchange Management Console reports that the build is 685.24. This is the expected result even though the Exchange 2007 RTM build is 685.25. An exception to this version mismatch issue is present on the Edge Transport server, which will always display only 685.25 for the version. As a result, when you look at multiple Exchange servers in the Exchange Management Console that include one or more synchronized Edge Transport servers, the Version column will show both 685.24 (for non-Edge Transport servers) and 685.25 (for Edge Transport servers). Additionally, when you click Help on the Exchange 2007 management console, you will see a different version number altogether (685.018). This is consistent on all Exchange 2007 servers.

For example, when you use the Exchange Management Console to look at version and build information, the management console may display "Version 8.0 (Build 685.24)". The same result is displayed if you run this Exchange Management Shell cmdlet: Get-ExchangeServer -Identity ServerName | fl AdminDisplayVersion. However, if you run the cmdlet Get-ExchangeServer -Identity <ServerName> | fl ExchangeVersion, the result is "0.1 (8.0.535.0)". 

The ExchangeVersion attribute does not refer to the version of Exchange that is running on the server. Instead, it is the minimum version of Exchange that is able to read the specific object. In this case, 8.0.535.0 can read this object; for example, the last changes to the schema of this object were made in build 535. To learn which version of Exchange is currently installed, you should check the value of the AdminDisplayVersion attribute, not the value of the ExchangeVersion attribute.

Build Numbers and Release Dates for Exchange Server

Each version of Exchange has a different build number. The following list contains the build numbers and general release dates for each version.

Version build numbers and release dates for Exchange Server

  • Microsoft Exchange Server 2007 8.0.685.24 or 8.0.685.25 December 2006
  • Microsoft Exchange Server 2003 SP2 6.5.7638 October 2005
  • Microsoft Exchange Server 2003 SP1 6.5.7226 May 2004
  • Microsoft Exchange Server 2003 6.5.6944 October 2003
  • Microsoft Exchange 2000 Server post-SP3 6.0.6603 August 2004
  • Microsoft Exchange 2000 Server post-SP3 6.0.6556 April 2004
  • Microsoft Exchange 2000 Server post-SP3 6.0.6487 September 2003
  • Microsoft Exchange 2000 Server SP3 6.0.6249 August 2002
  • Microsoft Exchange 2000 Server SP2 6.0.5762 December 2001
  • Microsoft Exchange 2000 Server SP1 6.0.4712 July 2001
  • Microsoft Exchange 2000 Server (a) 6.0.4417 January 2001
  • Microsoft Exchange 2000 Server 6.0.4417 October 2000
  • Microsoft Exchange Server 5.5 SP4 5.5.2653 November 2000
  • Microsoft Exchange Server 5.5 SP3 5.5.2650 September 1999
  • Microsoft Exchange Server 5.5 SP2 5.5.2448 December 1998
  • Microsoft Exchange Server 5.5 SP1 5.5.2232 July 1998
  • Microsoft Exchange Server 5.5 5.5.1960 November 1997
  • Microsoft Exchange Server 5.0 SP2 5.0.1460 February 1998
  • Microsoft Exchange Server 5.0 SP1 5.0.1458 June 1997
  • Microsoft Exchange Server 5.0 5.0.1457 March 1997
  • Microsoft Exchange Server 4.0 SP5 4.0.996 May 1998
  • Microsoft Exchange Server 4.0 SP4 4.0.995 April 1997
  • Microsoft Exchange Server 4.0 SP3 4.0.994 November 1996
  • Microsoft Exchange Server 4.0 SP2 4.0.993 August 1996
  • Microsoft Exchange Server 4.0 SP1 4.0.838 May 1996
  • Microsoft Exchange Server 4.0 (a) 4.0.993 August 1996
  • Microsoft Exchange Server 4.0 4.0.837 April 1996