January 13, 2026—Baseline
Applies To
Note: Windows Server 2025 Datacenter & Standard machines that are connected to Azure Arc, now have the option to subscribe to hotpatch servicing. Hotpatch provides the ability to install OS security updates without restarting your machine. To learn more, see Hotpatch for Windows Server.
Baseline Month
The January 2026 security baseline will be available starting January 13, 2026. For more information, see KB5073379.
To learn more about release cadence, see Release notes for Hotpatch on Windows Server 2025 Datacenter Azure Edition.
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