Microsoft announce that hotpatching for Windows Server 2025 is now free for Azure Arc-enabled servers. Previously this was free for servers running natively in Azure and cost $1.50 per core per month for Azure Arc-enabled servers. However, the costs stopped on May 15, 2026 for all servers currently enrolled in Hotpatch.
Find the announcement with some useful FAQs here: https://bit.ly/4dAKkOu.
Microsoft announce that hotpatching for Windows Server 2025 will be generally available as a subscription service on 1 July, 2025, costing $1.50 per CPU core per month. This new way of installing updates that doesn’t require a reboot after installation has been available for the Azure Edition of Windows Server Datacenter, but is now available to servers running outside of Azure, as long as they’re connected to Azure Arc.
Find the (excellent) announcement article here: https://bit.ly/4k0GGPJ.
Microsoft announce that Hotpatching is now available for Windows 11 Enterprise. It’s designed to help protect organisations from cyberattacks, while minimising user disruptions since Hotpatch updates don’t require a PC to be restarted.
Find the announcement article here: https://bit.ly/4jfQPrC, along with details on how the technology works and how to get started.
Windows Server and System Center 2025 were made generally available by Microsoft on November 1, 2024. This is a useful article (https://bit.ly/3CaBgAO) which gives more information on the new features of Windows Server 2025 including the fact that hotpatching (installing security updates without a reboot) will be available as a monthly subscription for Windows Server 2025 Standard and Datacenter editions.
Find out more about the public preview of Windows Server Hotpatch here: https://bit.ly/40AX1Eb.