Yesterday, August 17, 2021, officially marked the end of support for Microsoft 365 applications and services on Internet Explorer 11 (IE11). Anyone who tries to use Microsoft 365 apps and services on an outdated browser may have a degraded experience or be unable to sign in. We’ve known about the end of support for these apps on IE11 for months, but the deadline has now passed.
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Microsoft updated a tech community article with the following on July 23, 2021:
As of August 17, 2021, Microsoft 365 apps and services will no longer support Internet Explorer 11 (IE11) and users may have a degraded experience or be unable to sign in to these apps and services. These apps and services will be phased out over weeks and months to ensure a smooth end of support, with each app and service phased out on independent schedules.
If you have issues accessing Microsoft 365 apps and services from IE11 after August 17, 2021, support will not be available. Additionally, you shouldn’t expect any new features and your daily use experience to gradually worsen over time until apps and services go offline.
Microsoft also describes the specific experiences that will be affected by the change that took place on August 17, 2021:
- Outlook Web App: Users signing in with AAD accounts will still get the full OWA experience, but will not receive new features as of August 17, 2021, while users signing in with Microsoft (MSA) accounts will be redirected to the Outlook Web App Light experience.
- Open with Explorer / View in File Explorer (SharePoint): We understand that some customers may continue to use Open with Explorer and View in File Explorer (only accessible in IE11) to access the libraries of documents. To avoid disruption, these clients will be able to use these features for the time being when they access a document library in IE11. These features remain in maintenance mode and are not the subject of further development. We encourage all customers to upgrade to a modern browser and OneDrive sync for a better user experience and easier access to files. For more information on preparing your SharePoint environment for end of support on IE11, please read this Docs article.
- All other apps and services will be phased out over weeks and months to ensure a smooth end of support, with each app and service phased out on independent schedules.
Fortunately, there is no shortage of modern browsers on Windows 10. Microsoft Edge, Google Chrome, Mozilla Firefox and many other browsers support Microsoft 365 applications and services.
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