RELEASE: Exchange Server 2013 RTM Cumulative Update 1

Posted by: kurtsh | May 14, 2013

RELEASE: Exchange Server 2013 RTM Cumulative Update 1

We know a lot of you have been waiting for this, and so it is with great excitement that we announce that Exchange Server 2013 RTM Cumulative Update 1 (CU1) has been released to the web and is available for immediate download! This is the first release using the new servicing model for Exchange Server 2013. In addition to this article, the Exchange 2013 RTM CU1 release notes are also available.

Note: Article links that may not have been available at the time of this post’s publishing are now available. Updated Exchange 2013 documentation, including Release Notes, is now available on TechNet.

CU1 is the minimum version of Exchange 2013 required for on-premises coexistence with supported legacy Exchange Server versions. The final build number for CU1 is 15.0.620.29. For more information on coexistence, check out the Planning and Deployment documentation, and this Ignite webcast covering deployment of and coexistence with Exchange Server 2013.

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