Exchange Server 2013 Cumulative Update 5

The team is announcing today the availability of our most recent quarterly servicing update to Server 2013. Cumulative Update 5 for Exchange Server 2013 and updated UM Language Packs are now available on the Download Center.

Cumulative Update 5 represents the continuation of our Exchange Server 2013 servicing and builds upon Exchange Server 2013 Service Pack 1. The release includes fixes for customer reported issues, minor product enhancements and previously released security bulletins. A complete list of customer reported issues resolved in Exchange Server 2013 Cumulative Update 5 can be found in Knowledge Base Article KB2936880.

Attention for a couple of items in particular about the Cumulative Update 5 release:

  • Based upon customer feedback, Exchange Team introduced improvements to OAB management for distributed environments. You can read more about this in a post by Ross Smith IV on the Exchange Team blog. Customers who have deployed Multiple OAB Generation Mailboxes are advised to read this post to help avoid unnecessary OAB downloads.
  • Cumulative Update 5 includes a Managed Availability probe configuration that is frequently restarting the Microsoft Exchange Shared Cache Service in some environments. The service is being added to provide future performance improvements and is not used in Cumulative Update 5. More information is available in KB2971467.

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