Office 2016 for Windows will get security updates until October 14, 2025.Unlike the Windows version, Office 2019 for Mac does not receive extended support. Office 2019 for Mac will get security updates until October 10, 2023.The mainstream support end date is October 10, 2023, while the extended support end date is October 14, 2025. Office 2019 for Windows will get security updates until October 14, 2025.Office 2021 for both Windows and Mac will get security updates until October 13, 2026.Office 365, available through a Microsoft 365 subscription, is always kept up-to-date with the latest software.These versions of Office are still getting security updates, as of December 2021: RELATED: What It Means When Microsoft Stops Supporting Your Version of Windows How Long Will Microsoft Support Your Version of Office? Organizations may also be able to buy Extended Security Updates after the period, just as they can with Windows 7.Īs long as your version of Microsoft Office is still receiving at least extended support, it’s still getting security updates.