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Description of Cumulative Update 1 for Exchange Server 2013

Summary
This article describes Cumulative Update 1 (CU1) for Microsoft Exchange Server 2013 that provides the latest fixes for Exchange Server 2013 and contains stability and performance improvements. This update enables you to install Exchange Server 2013 in your existing Exchange Server 2010 or 2007 organization. 

Note The CU1 package can be used to perform a new installation, or to update an existing Exchange Server 2013 installation to CU1.

For more information about coexistence of Exchange 2013 and earlier versions of Exchange Server, go to the following Microsoft Website:
Resolution

Cumulative update package information

For more information about how to upgrade Exchange 2013 to the latest cumulative update (CU1), go to the following Microsoft website:

Download information

The following file is available for download from the Microsoft Download Center:Release Date: April 2, 2013

Prerequisites

Exchange 2013 setup will identify any missing prerequisites.

Restart requirement

You have to restart the computer after you apply this cumulative update package.

Registry information

You do not have to make any changes to the registry after you apply this cumulative update package.

Removal information

After you install this cumulative update package, you cannot uninstall the cumulative update package to revert to an earlier version of Exchange 2013. If you uninstall this cumulative update package, Exchange 2013 is removed from the server.

References
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Properties

Article ID: 2816900 - Last Review: 04/02/2013 17:25:00 - Revision: 1.0

Microsoft Exchange Server 2013 Enterprise, Microsoft Exchange Server 2013 Standard

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