iOS 11 or higher required for Office 365 Apple mobile apps
In order to increase security and better protect information resources, Microsoft has stated that iOS 10 and lower will no longer be supported for Office 365 mobile apps. These applications may continue to run for now, but will no longer receive important security updates, placing your information at risk. Additionally, Outlook for iOS 10 and lower will stop synching mail in the near future.

The latest version of iOS, iOS 12, has been available since September, and provides the most up-to-date security features for mobile Apple users. In order to protect yourself and TTU’s information resources, we recommend updating your iOS device to the latest operating system as soon as possible. You may find information on updating your device at

Note that the requirements for Android (KitKat 4.4 or later) have not changed. You can find full requirements for Microsoft’s mobile apps on their website. For any questions or concerns, please contact IT Help Central at (806) 742-4357 (HELP) or via email at

IT Help Central