check before: 2021-11-13
Exchange, Microsoft 365 Apps, Outlook
Mac, Online, Windows Desktop, World tenant
Admin impact, Retirement
Final Reminder: As previously announced (MC229143 - December '20, MC274503 - July and MC288472 - September), to ensure that we meet performance expectations, we are updating the supported versions of Outlook for Windows that can connect to Microsoft 365 services.
Note: Effective November 1, 2021, the following versions of Outlook for Windows (starting with Outlook 2007, in a phased rollout), will not be able to connect with Office 365 and Microsoft 365 services.
Additional Apps and Versions have been added since last communication.
Office and Microsoft 365 AppsOutlook for Windows Version
Office 2007All Versions
Office 2010All Versions
Office 2013Versions prior to 15.0.4971.1000 of Office 2013 (Service Pack 1 with the October 2017 Update)
Office 2016 MSIVersions prior to 16.0.4600.1000 of Office 2016 (With the November 2017 Update, KB 4051890)
Microsoft 365 Apps for enterprise;(formerly Office 365 ProPlus)1705 and older
Microsoft 365 Apps for business(formerly Office 365 Business)1705 and older
Timing: November 1, 2021
Action: Ensure Outlook for Windows client are updated accordingly
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Last updated 9 months ago