Message preview for channels, mentions, and reactions notifications

Originally posted by Microsoft Dec 3, 2025 Uncategorized 0 Comments

Microsoft Teams will add message previews to channel, mention, and reaction notifications on Windows, Mac, and web starting mid-December 2025. Users can disable previews via notification settings. No admin action or policy changes are needed; the feature activates with client updates.

This message applies to Teams for Windows desktop, Teams for Mac desktop and Teams for the web.

Screenshot: @mention notification with message preview

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When this will happen:

• Targeted Release (Worldwide): Rollout begins mid-December 2025; expected to complete by mid-December 2025
• General Availability (Worldwide): Rollout begins mid-January 2026; expected to complete by mid-January 2026
• General Availability (GCC, GCC High, DoD): Rollout begins mid-January 2026; expected to complete by late January 2026

How this affects your organization:

• Who is affected: All users of Microsoft Teams on Windows and Mac desktop clients and Teams on the web.
• What will happen:
  • Notifications for channels, mentions, and reactions will include a message preview, unless the message preview is disabled by users.
  • Users can disable previews:
    • On Windows and Web: via Teams Notification Settings.
    • On Mac: via OS Notification Settings.
  • No changes to existing admin policies; no policy updates required.

What you can do to prepare:

Compliance considerations:

• No admin action is required; the feature will be available automatically once users update to the supported Teams client build.
• Consider notifying your users about this update and how they can manage notification settings.

Message ID: MC1191916