MC1302903 – M365 Change Digest

One-line summary

Teams meeting templates will require updated Teams and Outlook clients by June 30, 2026; older versions lose support for creating meetings with templates.

Similar updates

Details

Summary

Microsoft is upgrading Teams meeting templates backend for better security, requiring supported Teams and Outlook versions by June 30, 2026. Meeting templates function remains unchanged but need Teams Premium license. Users must update to specified minimum versions; no admin action needed. Communicate changes and ensure app restarts for updates.

Body (from Message Center)

[Introduction]

Microsoft is upgrading the backend service that powers Teams meeting templates to improve security and reliability. As part of this change, meeting templates will require supported versions of Microsoft Teams and Outlook clients. Meeting templates functionality and user experience remain unchanged.

Meeting templates is a Teams Premium feature and requires the appropriate license to be enabled for users.

[When this will happen:]

Worldwide, GCC, GCCH and DoD: Support for meeting templates feature in older versions will stop by June 30, 2026.

[How this affects your organization:]

Who is affected:

Meeting organizers who create Teams meetings using meeting templates
This includes webinars and town halls that rely on meeting templates

What will happen:

Users on unsupported versions of Microsoft Teams or new Outlook for Windows may experience issues when accessing or applying meeting templates
Meeting templates functionality remains unchanged for supported clients
This change is enforced automatically; no admin configuration is required

[What you can do to prepare:]

To ensure a smooth transition, please confirm users are on the minimum supported versions listed below:

Microsoft Teams (Windows): 26015.1706.4351.4392 or later
Microsoft Teams (Mac): 26015.1706.4351.4392 or later
Outlook (classic) with Teams add-in: Teams version 26015.1706.4351.4392 or later (no separate Outlook update required)
New Outlook for Windows: 20260320002.20 or later

Recommended actions:

Verify users are running supported versions before the applicable deadline.
Communicate this change to helpdesk and support teams.
Encourage users to restart Teams and Outlook applications to ensure updates are applied.

Update guidance:

Review how Teams updates automatically and how to manually check for updates: Update Microsoft Teams | Microsoft Support
Learn how updates are managed in the new Outlook for Windows: Manage updates in new Outlook for Windows | Microsoft Learn

[Compliance considerations:]

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

Raw JSON (for debugging)

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    "ai_action_required_by": "2026-06-30T00:00:00Z",
    "ai_actions": [
      "Ensure all users update Teams and Outlook clients to supported versions",
      "Notify helpdesk and support teams",
      "Encourage application restarts to complete updates"
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    "ai_master_tags": [
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    "ai_model": "gpt-4.1",
    "ai_summary": "Teams meeting templates will require updated Teams and Outlook clients by June 30, 2026; older versions lose support for creating meetings with templates.",
    "ai_topics": [
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      "Outlook"
    ],
    "category": "preventOrFixIssue",
    "details_map": {
      "Summary": "Microsoft is upgrading Teams meeting templates backend for better security, requiring supported Teams and Outlook versions by June 30, 2026. Meeting templates function remains unchanged but need Teams Premium license. Users must update to specified minimum versions; no admin action needed. Communicate changes and ensure app restarts for updates."
    },
    "id": "MC1302903",
    "importance": 2,
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    "last_modified": "2026-05-06T22:51:41Z",
    "ms_products": [
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    "roadmap_ids": [],
    "services": [
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    "severity": "normal",
    "tags": [
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    "title": "Teams meeting templates: Fundamentals and security upgrade"
  }
}