These release notes address the most critical issues and information about the Windows Developer Preview operating system. For information about by-design changes, new features, and fixes in this release, see documentation and announcements from the specific feature teams. For further information about this release, including less serious issues you may encounter that are not included in this document, see http://go.microsoft.com/fwlink/?LinkId=227234. Unless otherwise specified, these notes apply to all editions and installation options of the Windows Developer Preview.
Because this is a pre-beta release, many drivers may not be available yet. Check with the OEMs of your devices for the availability of updated drivers.
Windows 11 Patch Tuesday January 2026 (KB5074109, KB5073455)
Microsoft Finally Releases the November Week D Preview Update for Windows 11