Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2
Topic Last Modified: 2010-07-29
When you're upgrading your existing Microsoft Exchange Server 2007 organization to Exchange Server 2010, there's a period of time when both Exchange 2007 and Exchange 2010 will coexist within your organization. This section discusses key points about both the upgrade process and coexistence as they apply to the Client Access, Transport, Mailbox, and Unified Messaging server roles. For more information, see the following topics:
Checklist: Upgrading from Exchange 2007
Upgrade from Exchange 2007 Client Access
Upgrade from Exchange 2007 Transport
Upgrade from Exchange 2007 Mailbox
Upgrade from Exchange 2007 SP3 to Exchange 2010 RTM Unified Messaging
For more information about the Exchange 2007 to Exchange 2010 planning and upgrade process, see the following topics:
Exchange 2007 - Planning Roadmap for Upgrade and Coexistence
Understanding Upgrade to Exchange 2010