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BlackBerry Enterprise Server for Microsoft Exchange Upgrade Guide
In a mixed-version environment that includes BlackBerry Enterprise Server Version 3.6 and earlier and BlackBerry
Enterprise Server Version 4.0 or later, the BlackBerry Mobile Data Service push serve r must be Vers ion 4.0 or later.
The BlackBerry Enterprise Server Version 3.6 and earlier uses different locations to store the BlackBerry Mobile
Data Service files and uses different tables in the BlackBerry Configuration Database. You can only push
application data to user accounts on a BlackBerry Enterprise Server Version 4.0 or later from a BlackBerry Mobile
Data Service push server at Version 4.0 or later.
In a mixed-version environment that includes BlackBerry Enterprise Server Version 4.1 and earlier, the BlackBerry
MDS Connection Service central push server must be Version 4.1.
BlackBerry Enterprise Server Version 4.1.2 or later considerations
In a mixed-version environment that includes BlackBerry components at Version 4.1.2 or later, the BlackBerry
Manager must not be at a higher version than the BlackBerry Configuration Database.
Sample supported mixed-version environment
BlackBerry
Enterprise
Server
Version4.1.2
BlackBerry
Enterprise
Server
Version4.1.0
BlackBerry
Configuration
Database
Version4.1.2
BlackBerry
Manager
Version4.1.1
BlackBerry
Enterprise
Server
Version4.1.1