Message Preview for Channels, Mentions, and Reactions MC1191916

Message ID: MC1191916

[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.

Source: Microsoft