60-Day Reminder: Windows Server 2022 will reach end of mainstream support on October 13, 2026

🚨 The Signal: Windows Server 2022 mainstream support ends October 2026, transitioning to extended support. Upgrade to Windows Server 2025 is recommended to maintain full support and security posture, ensuring timely access to non-security updates and new features.

The Impact

Server administrators are affected, facing increased security risk from unpatched non-security vulnerabilities if not upgraded.

  • Server administrators: Must plan and execute server upgrades.
  • Security teams: Risk exposure from unpatched non-security vulnerabilities.
  • Compliance teams: Potential non-compliance with patching policies.
  • IT operations: Increased operational overhead for managing unsupported systems.

The Action

  1. Review current Windows Server 2022 deployments and identify upgrade candidates.
  2. Download and evaluate Windows Server 2025 from the Microsoft Evaluation Center.
  3. Develop an upgrade plan, including testing and rollback procedures.
  4. Schedule and execute the upgrade of Windows Server 2022 instances to Windows Server 2025.
  5. Update internal documentation and asset registers to reflect new server versions.

Domain: Other · Impact: medium · Workload: Other · Essential Eight: Patch Operating Systems · ISM: ISM-1407, ISM-1501, ISM-1621, ISM-1622, ISM-1623, ISM-1654, ISM-1655, ISM-1694, ISM-1695, ISM-1696, ISM-1701, ISM-1702, ISM-1877, ISM-1889, ISM-1902