Issues That Are Fixed in Exchange 2010 SP2

Issues that are Fixed

Exchange 2010 SP2 includes the changes made in the following Exchange 2010 SP1 rollups:

Post Deployment Task of SP2

Mailbox Replicatiopn Proxy – You must manually enable MRSProxy after you upgrade to Exchange 2010 SP2 using Set-WebServicesVirtualDirectory

Outlook Web App – If you’re using redirection for Outlook Web App and aren’t requiring Secure Sockets Layer (SSL), redirection will fail after the Client Access server is upgraded to Exchange 2010 SP2. To avoid this problem, after you’ve completed the upgrade to Exchange 2010 SP2, modify the Outlook Web App web.config file.

More details for the post deployment of SP2 can be found here