Message preview for channels, mentions, and reactions notifications

[Introduction]

Microsoft Teams is improving the notification experience by adding message previews to more types of notifications, including channels, mentions, and reactions. This enhancement helps users quickly assess the importance of a notification without switching context, prioritize responses more effectively, and enjoy a consistent experience across platforms.

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

Screenshot: @mention notification with message preview

[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:]

• 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.

[Compliance considerations:]

No compliance considerations identified; review as appropriate for your organization.