Release information for updates to Office 365 ProPlus

Office 365 ProPlus is updated on a regular basis with new features, security updates, and non-security updates. These updates are released by using update channels. For each release in each update channel, there is a version and build number assigned to it.

The following table lists the supported version, and the most current build number, for each update channel. The build number links directly to the release notes for that release.

Channel Version Build Release date Current version until
July 10, 2018
Version 1807 is released
Semi-Annual (Targeted)
July 10, 2018
September 11, 2018
July 10, 2018
January 8, 2019
July 10, 2018
March 12, 2019

For information about the approximate download size when updating from a previous release of Office 365 ProPlus to the most current release, see Download sizes for updates to Office 365 ProPlus.


  • These version and build numbers also apply to Office 365 Business, Visio Pro for Office 365, and Project Online Desktop Client. Office 365 Business is the version of Office that comes with some Office 365 plans, such as Business Premium.
  • Versions of update channels that aren't listed in the table are no longer supported. For example, Version 1704 of Monthly Channel is no longer supported.

Update history for Office 365 ProPlus releases

For a complete list of releases, see the following articles:

Release notes for Office 365 ProPlus releases

For a complete list of release notes by update channel and year, see the following articles:

Office for Mac release information

For information about updates to Office for Mac, which is included with any Office 365 subscription plan that includes Office 365 ProPlus, see the following articles: