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MC1058266 Plan for changeMajor changeUser impactRetirement

Classic Microsoft Teams: The option to open files in Teams will retire

Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.
Microsoft Teams
Microsoft 365 admin center

What the notice says

Microsoft’s text, with source markup removed
We will retire the option to open a file in classic Microsoft Teams starting April 15, 2025, and ending April 30, 2025. Instead, we recommend opening the file in the appropriate app (Microsoft Word, Microsoft Excel, or Microsoft PowerPoint) in the desktop or web, where we will continue to invest our development resources. This retirement is to address certain security vulnerabilities that surfaced recently with classic Teams. NOTE: This retirement will not affect file open options for the new version of Microsoft Teams. This message applies to classic Teams for Windows desktop, classic Teams for Mac desktop, and classic Teams for the web. This change will happen automatically by the specified date. No admin action is required. Consider notifying your users about this change and updating relevant internal documentation.

What changed

Between archive captures, newest first

The archive supplies one version of this notice.

Linked documentation

Microsoft pages the notice links to

The notice links to no Microsoft Learn or Support page that this installation reads.

No related evidence found in this installation's recent collection. This does not establish that no announcement exists.

Not confirmed here

What this page cannot tell you
  • Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 26 Oct 07:24 UTC · 272 of 272 readable · 270 fully read · documentation 469/469 current

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