MC1308857 – M365 Change Digest

One-line summary

Teams desktop on macOS 13 loses updates in May 2026, upgrade prompts start mid-June, and app access will be blocked mid-July unless OS is upgraded or Teams web is used.

Similar updates

Details

Summary

Microsoft Teams will stop desktop client updates for macOS 13 starting May 2026, with upgrade notifications in June and blocking access by mid-July. Users must upgrade macOS or use Teams on the web. Organizations should identify affected devices, plan upgrades, and prepare users and support teams accordingly.

Body (from Message Center)

[Introduction]

To maintain security, performance, and compatibility with newer macOS capabilities, Microsoft Teams will end support for desktop client updates on macOS 13 (Ventura). This ensures continued delivery of modern features and security updates on supported operating systems.

[When this will happen:]

May 2026: Updates stop for macOS 13
Mid-June 2026: Upgrade notifications begin
Mid-July 2026: Blocking experience introduced

[How this affects your organization:]

Who is affected:

Users on Teams desktop client on macOS 13
IT admins managing macOS devices

[What will happen:]

Teams desktop on macOS 13 will no longer receive updates starting May 2026.
Users will see in-app upgrade notifications beginning in mid-June 2026.
Users will encounter a blocking screen in mid-July 2026 preventing continued use of the desktop client.
Users must either:
- Upgrade to a supported macOS version, or
- Use Teams via a supported web browser
This change is automatic and cannot be disabled by admins.
Organizations that do not upgrade devices may experience temporary productivity or support impacts.

[What you can do to prepare:]

Identify devices running macOS 13.
Plan OS upgrades before mid-July 2026.
Communicate changes to users.
Prepare helpdesk teams.
Update compliance policies as needed.
Provide guidance to use Teams on the web if needed.

[Compliance considerations:]

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

Raw JSON (for debugging)

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{
  "snapshot_item": {
    "action_required_by": "2026-07-15T00:00:00Z",
    "ai_action_required_by": null,
    "ai_actions": [
      "Identify macOS 13 devices",
      "Plan OS upgrades",
      "Inform users",
      "Prepare helpdesk",
      "Update compliance policies"
    ],
    "ai_master_tags": [
      "User",
      "Admin"
    ],
    "ai_model": "gpt-4.1",
    "ai_summary": "Teams desktop on macOS 13 loses updates in May 2026, upgrade prompts start mid-June, and app access will be blocked mid-July unless OS is upgraded or Teams web is used.",
    "ai_topics": [
      "Teams"
    ],
    "category": "planForChange",
    "details_map": {
      "Summary": "Microsoft Teams will stop desktop client updates for macOS 13 starting May 2026, with upgrade notifications in June and blocking access by mid-July. Users must upgrade macOS or use Teams on the web. Organizations should identify affected devices, plan upgrades, and prepare users and support teams accordingly."
    },
    "id": "MC1308857",
    "importance": 5,
    "is_major_change": true,
    "last_modified": "2026-05-12T23:19:10Z",
    "ms_products": [
      "Teams"
    ],
    "platforms": null,
    "roadmap_ids": [],
    "services": [
      "Microsoft Teams"
    ],
    "severity": "normal",
    "tags": [
      "User impact",
      "Admin impact",
      "Retirement"
    ],
    "title": "Action required: Upgrade macOS 13 devices to maintain Teams desktop access"
  }
}