Cumulative Update 18 for Exchange Server 2013

Applies to: Exchange Server 2013 EnterpriseExchange Server 2013 Service Pack 1Exchange Server 2013 Standard Edition

This update is no longer available because Cumulative Update 21 for Exchange Server 2013 (4099855) was released on June 19, 2018. You can install the latest Exchange Server 2013 update to fix the issues that are described in this article.

Cumulative Update 18 for Microsoft Exchange Server 2013 was released on September 19, 2017. Several nonsecurity issues are fixed in this cumulative update or a later cumulative update for Exchange Server 2013.

Get Cumulative Update 18 for Exchange Server 2013


  • The Cumulative Update 18 package can be used to run a new installation of Exchange Server 2013 or to upgrade an existing Exchange Server 2013 installation to Cumulative Update 18.
  • It's not necessary to install any previously released Exchange Server 2013 cumulative updates or service packs that were released before Cumulative Update 18 before you install Cumulative Update 18.

Cumulative update information


Prerequisites

The setup process for Exchange Server 2013 identifies any missing prerequisites.

Restart requirement

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

Registry information

You don't 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 can't uninstall the package to revert to an earlier version of Exchange Server 2013. If you uninstall this cumulative update package, Exchange Server 2013 is removed from the server.

More Information


For more information about the deployment of Exchange Server 2013, see Release Notes for Exchange 2013.

For more information about the coexistence of Exchange Server 2013 and earlier versions of Exchange Server in the same environment, see Exchange 2013 System Requirements.

For more information about other Exchange updates, see Exchange Server Updates: Build numbers and release dates.

References


Learn about the terminology that Microsoft uses to describe software updates.