We are currently at Exchange version build which I believe is SP2. I have been trying to install Update Rollup 3 for Exchange Sp2. The roll up seems to install correctly with no error messages but the version number or build number of exchange does not change. It should be version build after the installation. Dec 02, · I took a chance and rebooted the Exchange server and all the Exchange services started and the version shows as Version (Build ) which is correct but I'm still concerned that it failed on the "Client Access Role" step and then cancelled out . Nov 06, · Exchange Version (Build ) BlackBerry® Enterprise Server Express Version (Bundle 38) Outlook Version 0 · ·.