Exchange 2010 Build Numbers

You can use the Exchange Management Console to view the build number for an Exchange 2010 server. This is visible in the Server Configuration node.

Unfortunately, there is no easy pattern to know what service packs or rollup updates have been installed. Fortunately, a list of build numbers and the corresponding service packs and rollup updates is maintained in the Exchange Server documentation.

Exchange Server Build Numbers and Release Dates

• http://technet.microsoft.com/library/hh135098.aspx

 There is also a Technet Wiki article with similar information that seems to be updated a bit faster

• http://social.technet.microsoft.com/wiki/contents/articles/240.exchange-server-and-update-rollups-build-numbers-en-us.aspx