MC1454978 – M365 Change Digest

One-line summary

Windows Server 2022 mainstream support ends October 13, 2026; upgrade to Windows Server 2025 to maintain full mainstream support and protection.

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Body (from Message Center)

On October 13, 2026, Windows Server 2022 will reach end of mainstream support. The October 2026 security update will be the last mainstream support update available for this version. After this date, Windows Server 2022 will transition to extended support, which includes security updates at no additional cost, and will continue to receive monthly security updates through October 14, 2031. For more information, see the Fixed Lifecycle Policy.

Windows Server 2025 is now the latest Long-Term Servicing Channel (LTSC) release for Windows Server. To help keep your environment protected and supported, plan to upgrade to Windows Server 2025 for full mainstream support. To download a free 180-day evaluation, visit the Microsoft Evaluation Center. Evaluate upgrade options and begin deployment testing early to help ensure a smooth transition.

For detailed lifecycle dates, see the Windows Server 2022 lifecycle page. For servicing timelines and related resources, see Windows Server release information, Lifecycle FAQ - Windows Server, and Microsoft Lifecycle Policy search tool.

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{
  "snapshot_item": {
    "action_required_by": null,
    "ai_action_required_by": "2026-10-13T00:00:00Z",
    "ai_actions": [
      "Plan upgrade from Windows Server 2022 to Windows Server 2025",
      "Evaluate upgrade options",
      "Begin deployment testing for Windows Server 2025"
    ],
    "ai_master_tags": [
      "Admin"
    ],
    "ai_model": "gpt-4.1",
    "ai_summary": "Windows Server 2022 mainstream support ends October 13, 2026; upgrade to Windows Server 2025 to maintain full mainstream support and protection.",
    "ai_topics": [
      "Windows",
      "Windows Server"
    ],
    "category": "stayInformed",
    "details_map": {},
    "id": "MC1454978",
    "importance": 2,
    "is_major_change": false,
    "last_modified": "2026-08-14T21:01:55Z",
    "ms_products": [
      "Windows"
    ],
    "platforms": null,
    "roadmap_ids": [],
    "services": [
      "Windows"
    ],
    "severity": "normal",
    "tags": [
      "Admin impact"
    ],
    "title": "60-Day Reminder: Windows Server 2022 will reach end of mainstream support on October 13, 2026"
  }
}