This applies for both Microsoft 365 for Mac and Office 2019 for Mac users. For example, if you’re on macOS 10.14, but later you don’t update your macOS to a supported version when macOS 10.14 is no longer supported, you won’t receive any updates of any kind.Īs new major versions of macOS are released and older versions become unsupported, we highly recommend you continue to update your macOS to a supported version in order to receive mainstream support such as security updates as well as new features (if you’re an Microsoft 365 for Mac subscriber). If you’re on an unsupported version of macOS, your Office apps will still work but you would no longer receive any updates including security updates. What if I don't update macOS to a supported version? Learn more about the latest macOS releases. Note that new installs of Microsoft 365 for Mac or Office 2019 for Mac will also require macOS 10.14 or later. Upgrading your operating system to macOS 10.14 or later will allow Office updates to be delivered for your apps. If you continue with an older version of macOS, your Office apps will still work, but you'll no longer receive any updates including security updates. As of the December 2020 (build 16.44) update for Microsoft 365 for Mac or Office 2019 for Mac, macOS 10.14 Mojave or later is required to receive updates to Word, Excel, PowerPoint, Outlook and OneNote.
