(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]
Posted inMicrosoft Teams

(Updated) New file protection in Teams chat and channels blocks unsafe content [MC1148540]

Message ID: MC1148540 (Updated) Updated October 30, 2025: We have updated the content. Thank you for your patience.IntroductionMicrosoft Teams is introducing a new protection feature that blocks messages containing weaponizable file types—such as executables—in chats and channels. This helps reduce…
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Action Required – Configure Browser Policy to Preserve OneDrive and SharePoint Web Performance and Offline Capability [MC1150662]
Posted inSharePoint Online

Action Required – Configure Browser Policy to Preserve OneDrive and SharePoint Web Performance and Offline Capability [MC1150662]

Message ID: MC1150662 (Updated) Updated October 20, 2025: We have updated the content to correctly reference Chromium 142. Thank you for your patience. [Introduction]Upcoming privacy-related changes in Chromium-based browsers (Google Chrome and Microsoft Edge) will increase restrictions on local network access.…
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Reminder: Support for the Word Mobile, Excel Mobile, and PowerPoint Mobile UWP applications ended on October 14, 2025 [MC1173198]
Posted inMicrosoft 365 apps

Reminder: Support for the Word Mobile, Excel Mobile, and PowerPoint Mobile UWP applications ended on October 14, 2025 [MC1173198]

Message ID: MC1173198 [Introduction]Reminder: Support for the mobile Universal Windows Platform (UWP) apps (Microsoft Word, Microsoft Excel and Microsoft PowerPoint) ended on October 14, 2025. No further updates, security fixes, or technical support will be available for these applications. We…
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Action Required – Configure Browser Policy to Preserve OneDrive and SharePoint Web Performance and Offline Capability [MC1150662]
Posted inSharePoint Online

Action Required – Configure Browser Policy to Preserve OneDrive and SharePoint Web Performance and Offline Capability [MC1150662]

Message ID: MC1150662 (Updated) Updated October 3, 2025: We have updated the timeline. Thank you for your patience. [Introduction]Upcoming privacy-related changes in Chromium-based browsers (Google Chrome and Microsoft Edge) will increase restrictions on local network access. When enforcement begins, users accessing…
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Retirement of “When Sending a Message” Group Policy in Classic Outlook for Windows [MC1164375]
Posted inMicrosoft 365 apps

Retirement of “When Sending a Message” Group Policy in Classic Outlook for Windows [MC1164375]

Message ID: MC1164375 [Introduction] We’re retiring the When Sending a Message Group Policy in Classic Outlook for Windows to improve administrative flexibility and respond to customer feedback. This legacy policy grouped several mail-sending behaviors under one setting. Moving forward, these…
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