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Upgrading the BlackBerry Enterprise Server
using a phased process
Phased upgrades
You can upgrade your BlackBerry Enterprise Servers to Version 4.1.4 in phases while maintaining BlackBerry
Enterprise Servers at versions earlier than 4.1.4.
When you upgrade your BlackBerry environment gradually, you must use different administrative tools to manage
the different versions of the BlackBerry Enterprise Server. When you upgrade to BlackBerry Enterprise Server
Version 4.1.4 and your environment contains BlackBerry components at Version 4.1.1 and earlier, you must verify
which BlackBerry component version combinations are supported. You must also consider how changes to the
configuration and user access information impact existing versions of the BlackBerry Mobile Data Service
(BlackBerry MDS Connection Service).
Managing a mixed-version environment
The administrative tools that you use to manage a mixed-version environment depend on the versions of the
BlackBerry Enterprise Server that you continue to operate.
You can create a BlackBerry Domain—multiple BlackBerry Enterprise Servers sharing a single BlackBerry
Configuration Database—with BlackBerry Enterprise Servers Version 4.0 and Version 4.1 so that you can move user
accounts easily and limit their service interruption.
After you upgrade the BlackBerry Configuration Database to Version 4.1, you must administer all BlackBerry
Enterprise Servers in that BlackBerry Domain using BlackBerry Manager Version 4.1. You must also use the
BlackBerry Manager Version 4.1 for MMC to perform some administrative tasks on BlackBerry Enterprise Servers
earlier than Version 4.1. See the Managing multiple versions of the BlackBerry Enterprise Server for Microsoft
Exchange in a BlackBerry Domain guide for more information.
BlackBerry Mobile Data Service (BlackBerry MDS Connection Service)
considerations
After you upgrade the BlackBerry Mobile Data Service to Version 4.1 or later, the service name becomes the
BlackBerry MDS Connection Service.
Phased upgrades
Example 1: Upgrade BlackBerry Enterprise Servers at Version 4.0.3 using a phased process
Example 2: Upgrade BlackBerry Enterprise Servers at Version 4.0 and earlier using a phased process