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MC294992 – Final Reminder: As previously announced (MC229143 – December ’20, MC274503 – July and MC288472 – September), to ensure that Microsoft meets performance expectations, they 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.
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Office and Microsoft 365 Apps | Outlook for Windows Version |
Office 2007 | All Versions |
Office 2010 | All Versions |
Office 2013 | Versions prior to 15.0.4971.1000 of Office 2013 (Service Pack 1 with the October 2017 Update) |
Office 2016 MSI | Versions 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 |
Key Points:
How this will affect your organization:
Versions that are newer than minimum version requirements listed above, but are not the currently supported version, may experience connectivity issues.
To see a list of the currently supported versions, visit Update history for Microsoft 365 Apps (listed by date) (for Microsoft 365 Apps) or Latest updates for versions of Office that use Windows Installer (MSI) (see “Latest Public Update” for Office 2013 and 2016).
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Supported versions of Outlook for Windows in Office and Microsoft 365 will continue to connect to Microsoft 365 services as expected.
What you need to do to prepare:
Microsoft recommends that all users upgrade to the supported versions of Office and Microsoft 365 Apps.
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