Microsoft has an outdated technote listing the build numbers and release dates for MS Exchange. It is out of date as the Exchange 2010 Rollups and Service pack are not listed.
How to view the build numbers:
With Exchange Management Shell : get-exchangeserver
With Exchange Management Console : Expand till you see servers, right click , properties.
How to determine the version number, the build number, and the service pack level of Exchange Server
Exchange 2010 RTM 14.00.0639.21
Exchange 2010 Rollup 1 14.00.0682.1
Exchange 2010 Rollup 2 14.00.0689.0
Exchange 2010 Rollup 3 14.00.0694.0
Exchange 2010 Rollup 4 14.00.0702.1
Exchange 2010 SP 1 14.01.0218.15
Exchange 2010 SP 1 Rollup 1 14.01.0255.2
Exchange 2010 SP 1 Rollup 2 14.1.270.1
Exchange 2010 SP 1 Rollup 3 - was released them pulled.
Please post if you see any information missing.
From newest to oldest.
Description of Update Rollup 1 for Exchange Server 2010 Service Pack 1
The following file is available for download from the Microsoft Download Center:
Download the Exchange2010-KB2407028-EN-x64 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=a371fa96-e85b-4a4f-8242-15d56595d0ec)
Release Date: September 30, 2010
Exchange 2010 Service Pack 1
Description of Update Rollup 4 for Microsoft Exchange Server 2010 Release To Manufacturing
Download the Exchange2010-KB982639-EN-x64 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=09b4973e-3a80-4fb9-9f60-5c6e2b7a2727&displaylang=en)
Release Date: June 10, 2010
Description of Update Rollup 3 for Microsoft Exchange Server 2010 Release to Manufacturing
Download the Exchange2010-KB981401-EN package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=7dcf2390-dff7-4e3a-acca-03f4d43fb79a)
Release Date: April 13, 2010
Description of Update Rollup 2 for Exchange Server 2010: February 18, 2010
Download the Exchange2010-KB979611-EN-x64 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=6d3ae3e0-3982-46d6-9e9c-7d7d63fae565&displaylang=en)
February 18, 2010
Description of Update Rollup 1 for Exchange Server 2010
Download the Exchange2010-KB976573-EN-x64 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=371add31-d7a0-4c8b-8325-a6fced2d05e6&displaylang=en)
Release Date: December 9, 2009
Exchange 2010 hits RTM
Microsoft Exchange messaging server due for availability on Nov. 9
Build numbers and release dates for Exchange Server
other outdated listings ( as of 10/27/2010 ):
And of course as I completed this I found a completed list:
Also Blackberry maintains a list, along with some powershell commands to get build numbers from all of the Exchange servers on a network.
How to check the version of a Microsoft Exchange Server