Office 2016 for Mac – September 23, 2015 Update

Applies to: Office for Mac 2016


This article describes the Office 2016 for Mac update KB3098225 that was released on September 23, 2015. The update provides bug fixes and feature improvements to Microsoft Outlook 2016 for Mac. This update has a prerequisite.


This update provides the following fixes to improve Mac OS X El Capitan compatibility:

  • The Folder Pane, Message List, and Reading Pane now render correctly on startup and when you switch between views.
  • The green window button now performs the "zoom" behavior instead of entering Full Screen mode. Full Screen mode is not yet supported in Outlook. 

How to obtain the update


This update is available for manual download and installation from Microsoft AutoUpdate for Mac:

About Microsoft AutoUpdate for Mac

AutoUpdate is provided together with Office. It automatically keeps Microsoft software up-to-date. To use AutoUpdate, start a Microsoft Office program, and then click Check for Updates on the Help menu.


To apply this update, you must be using Mac OS X Yosemite (version 10.10) or a later version, and you must have a valid Office 365 Subscription. See more information about Office 365 Subscription options.

Note If you already have Office for Mac 2011 installed, you can run Office 2011 and Office 2016 side-by-side.

Restart requirement

You don't have to restart the computer after you install this update.

Update replacement information

This update replaces the Outlook 2016 for Mac release 15.14.