Microsoft Extends Hotpatching for Windows Server 2022 Until October 2027, Providing Additional Year of No-Restart Security Updates
In a move aimed at minimizing downtime and reducing security risks, Microsoft has extended its hotpatching support for Windows Server 2022 Datacenter: Azure Edition until October 2027. This means that organizations using this edition will continue to receive monthly security updates without requiring a restart, providing an additional year of uninterrupted service.
Hotpatching is a feature that allows Windows to deploy security updates by patching the in-memory code of running processes without restarting them after each installation or rebooting the device. While hotpatching provides significant benefits, such as reduced downtime and improved response times to vulnerabilities, it’s worth noting that servers still require a restart after installing updates delivered through the regular (non-Hotpatch) Windows update channel.
Microsoft has been testing and refining hotpatching for several years, starting with its general availability in February 2022 for Windows Server Azure Edition core virtual machines. The company also began testing hotpatching in public preview for Windows Server 2025 in September 2024, and for Windows 11 24H2 and Windows 365 two months later.
The extension of hotpatching support is effective immediately and applies only to systems running Windows Server 2022 Datacenter: Azure Edition that are enrolled in hotpatch updates. The existing hotpatch cadence will remain unchanged through October 2027, providing a seamless experience for organizations using this feature.
Microsoft’s decision to extend hotpatching support reflects the growing importance of minimizing downtime and reducing security risks in today’s fast-paced IT environment. By allowing organizations to continue benefiting from hotpatching capabilities without interruption, Microsoft is acknowledging the value of this feature in maintaining uptime, reducing servicing disruptions, and shortening response times to vulnerabilities.
As organizations continue to rely on Windows Server 2022 for their critical infrastructure needs, the extended support for hotpatching provides additional peace of mind. With this announcement, Microsoft reinforces its commitment to delivering innovative solutions that meet the evolving security needs of its customers.
For those using Windows Server 2022 Datacenter: Azure Edition, it’s essential to ensure that your systems are enrolled in hotpatch updates and take advantage of this extended support period. By doing so, you can continue to enjoy the benefits of hotpatching without worrying about restarts or downtime, providing a more resilient and secure infrastructure for your organization.
To get the most out of this feature, it’s crucial to test every layer of your security controls regularly, including your SIEM and EDR rules. By doing so, you can ensure that your systems are protected against emerging threats and minimize the risk of successful attacks slipping through detection.
Source: Bleeping Computer — 2026-06-29