On the 25th February 2009, Research in Motion released the BES for Domino 4.1 SP 6 Maintenance Release #4.

Prior to installing this (or any Maintenance Release), you should backup your BES Management Database (see Backup the BESMgmt database script).

To download this maintenance release, please visit: http://na.blackberry.com/eng/support/downloads/#tab_ddetail_subtab_software

To install the maintenance release

1. While logged in to the computer that hosts the BlackBerry Enterprise Server, stop all IBM Lotus Domino services.
   
2. Close BlackBerry Manager and the BlackBerry Configuration Panel.
   
3. In the Windows Services, stop all BlackBerry Enterprise Server services.
   
4. Double-click besn416mr4.zip.
   
5. Extract the setup program files to a local drive on your computer.
   
6. Browse to the location of the setup program files.
   
7. Double-click besn416mr3.msp to run the executable.
   
8. Click Update.
   
9. Complete the configuration screens.
   
10. Click Finish.
    
11. In the Windows Services, restart all BlackBerry Enterprise Server services.