Windows 11 release information

Note

Windows 11, version 26H1 is scoped to support new devices that come to market in early 2026 and is not designed as a feature update for existing devices. This version is not offered as an in-place update from 24H2 or 25H2 on existing devices.

Servicing channels

Enterprise and IoT Enterprise LTSC editions

Windows 11 release history

View a history of all monthly security and non-security preview updates released for Windows 11. Note that the Update type column references each monthly update by the year and the month of its release, followed by a letter indicating the week of the month (B is the second week of the month; D is the fourth week of the month). Out-of-band updates are referenced as OOB. This shorthand notation aligns with what you see in Microsoft Intune. For more information, see Type of update releases.

Visit the Windows 11 update history for details on the content of each release.

Windows 11 hotpatch calendar

View a calendar of hotpatch updates for Windows 11. With hotpatching, devices receive a baseline cumulative update the first month of each quarter in the calendar year. A restart is required to install that baseline update. During the next two months, devices receive a hotpatch update, which includes only security updates and can be installed without a restart. For details on what is included in each update, see the Release notes for hotpatch on Windows 11, version 25H2 Enterprise clients and Release notes for hotpatch on Windows 11, version 24H2 Enterprise clients.