MC1139493 – M365 Change Digest

One-line summary

Teams Copilot will default to running without transcription in meetings, with conversation history persisting; admins can update policies to retain transcription if needed.

Similar updates

Details

RoadmapIds

478611

Summary

Microsoft Teams Copilot will default to running without transcription for new meetings starting mid-January 2026, with conversation history persisting during meetings. Transcription must be manually enabled for post-meeting queries. Tenants with policies updated after June 2024 are unaffected; admins can adjust policies to retain current behavior.

Platforms

Android, Desktop, iOS, Mac, Web

Body (from Message Center)

Updated October 30, 2025: We have updated the timeline and the content. Thank you for your patience.

Introduction

We’re updating the default behavior of Microsoft Teams Copilot in meetings. Copilot without transcription will become the default mode for newly scheduled Teams meetings where Copilot is allowed. Additionally, conversation history will now persist during meetings, improving multitasking and continuity of insights.

This update is associated with Microsoft 365 Roadmap ID 478611.

When this will happen

General Availability (Worldwide): We will begin rolling out in mid-January 2026 (previously early November 2025) and expect to complete by early February 2026 (previously mid-November 2025).

[What's changing?]

Who is affected:

Affected tenants: If your TeamsMeetingPolicy was created or modified before the Copilot without transcription policy option was introduced (June 2024), your tenant will be affected by this change.
Not Affected: If your TeamsMeetingPolicy was created or modified after June 2024 when the Copilot without transcription option was introduced, your tenant will not be affected.

What will happen:

The default Copilot policy will change from EnabledWithTranscript to Enabled for both new and existing Teams meetings where Copilot is allowed.
Copilot and Facilitator will no longer automatically start transcription for meetings in affected tenants.
Users must manually enable transcription to use post-meeting Copilot or Facilitator queries.
Conversation history will persist during meetings for Copilot without transcription.
Tenants with TeamsMeetingPolicy created or modified after June 2024 are not affected.

[What you can do to prepare:]

If adopting the new defaults:

Review TeamsMeetingPolicy for transcription dependencies.
Update internal documentation and training.
Communicate to users how to enable transcription when needed.

Optional admin steps to retain current behavior:

Update Global and Custom TeamsMeetingPolicy settings via TAC or PowerShell.
TAC UI Portal: Navigate to Teams Admin Center and set the Copilot policy default value as required. For example, if the current default value is desired, update it to a different value, then set it back. Please ensure both TeamsMeetingPolicy and all Custom Policies are updated.

PowerShell example to set Copilot policy to EnabledWithTranscript for all relevant meeting policies:

get-csteamsmeetingpolicy | ? {
  $_.Identity -ne "Tag:AllOn" -and
  $_.Identity -ne "Tag:AllOff" -and
  $_.Identity -ne "Tag:Default" -and
  $_.Identity -ne "Tag:Kiosk" -and
  $_.Identity -ne "Tag:RestrictedAnonymousAccess" -and
  $_.Identity -ne "Tag:RestrictedAnonymousNoRecording"
} | % {
  $_.Identity;
  set-csteamsmeetingpolicy -identity $_.Identity -Copilot EnabledWithTranscript
}

Learn more:

Compliance considerations

Question	Answer
Does the change alter how existing customer data is processed, stored, or accessed?	Conversation history is now retained during the meeting instead of being cleared when switching panels.
Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data?	Copilot behavior is updated to persist conversation history, enhancing AI-driven meeting insights.
Does the change provide end users any new way of interacting with generative AI?	Users can now maintain a continuous Copilot interaction during meetings without transcription.
Does the change include an admin control and, can it be controlled through Entra ID group membership?	IT admins can enforce or override defaults via Teams meeting policy.
Does the change allow a user to enable and disable the feature themselves?	Users can manually enable transcription during meetings to retain Copilot insights post-meeting.

Raw JSON (for debugging)

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{
  "snapshot_item": {
    "action_required_by": null,
    "ai_action_required_by": "2026-01-15T00:00:00Z",
    "ai_actions": [
      "Review TeamsMeetingPolicy for transcription needs",
      "Update internal documentation",
      "Communicate manual transcription steps to users",
      "Adjust TeamsMeetingPolicy settings if retaining transcription is required"
    ],
    "ai_master_tags": [],
    "ai_model": "gpt-4.1",
    "ai_summary": "Teams Copilot will default to running without transcription in meetings, with conversation history persisting; admins can update policies to retain transcription if needed.",
    "ai_topics": [
      "Teams",
      "Copilot"
    ],
    "category": "stayInformed",
    "details_map": {
      "Platforms": "Android, Desktop, iOS, Mac, Web",
      "RoadmapIds": "478611",
      "Summary": "Microsoft Teams Copilot will default to running without transcription for new meetings starting mid-January 2026, with conversation history persisting during meetings. Transcription must be manually enabled for post-meeting queries. Tenants with policies updated after June 2024 are unaffected; admins can adjust policies to retain current behavior."
    },
    "id": "MC1139493",
    "importance": 3,
    "is_major_change": false,
    "last_modified": "2025-10-31T16:47:57Z",
    "ms_products": [
      "Teams"
    ],
    "platforms": "Android, Desktop, iOS, Mac, Web",
    "roadmap_ids": [
      "478611"
    ],
    "services": [
      "Microsoft Teams"
    ],
    "severity": "normal",
    "tags": [
      "Updated message",
      "Feature update",
      "User impact",
      "Admin impact"
    ],
    "title": "(Updated) Microsoft Teams Copilot without transcription becomes default for meetings - conversation history now persists"
  }
}