MC666969 · Microsoft 365 Apps & Suite, Microsoft 365 Experts
From Microsoft Corporation
Technical Bulletin MC666969 · Published Aug 11, 2023
ACTION REQUIRED: dropping support for iOS 15 in mid-September 2023 and iOS 17 expected to be released fully by late September 2023
Message Summary
Outlook for iOS is supported on the two most recent versions of iOS. When a new version of iOS is released, Outlook’s Operating System requirement becomes the two most recent versions: the current version and the previous version of iOS, iPadOS and watchOS.
Outlook for iOS is preparing to drop support for iOS 15 when iOS 17 is released.
When this will happen:
Outlook for iOS will drop support for iOS 15 in mid-September 2023 and iOS 17 expected to be released fully by late September 2023.
How this will affect your organization:
After iOS 17 is released, Outlook devices running iOS 15, or lower will no longer receive Office app updates. The system requirements for Outlook for iOS will be updated to reflect support for iOS 17. Microsoft will update the minimum system requirements for Outlook for iOS app from iOS 15 to iOS 16.
At that time, customers will be able to continue to use the older version of Outlook for iOS. Once they update their device to iOS 16 or above, they will receive the newest version of Outlook.
Over time, Outlook for iOS on iOS 15 devices will eventually stop synchronizing email and calendar data, unless they have a supported version of iOS.
This change does not affect anyone using Outlook for iOS apps on iOS 16 or above.
Microsoft will retire support for iPadOS 15 and watchOS 8. iPadOS 16 and 17, watchOS 9 and 10 will be the only supported versions for iPad and Apple Watch.
What you need to do to prepare:
We recommend that you communicate this change to your users to ensure they update their device operating system.
Please visit this link to refer to the current minimum system requirements for Office 365.
