April 14, 2026—KB5083768 (OS Build 28000.1836)
Applies To
Windows 11 version 26H1, all editions
Release Date:
4/14/2026
Version:
OS Build 28000.1836
This security update for Windows 11, version 26H1 (KB5082052), includes the latest security improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, Out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates.
To view the latest updates about this release, visit the Windows release health dashboard or the update history page for Windows 11, version 26H1.
This security update contains fixes and quality improvements from KB5079466 (released March 10, 2026). The following summary outlines key issues addressed by this update. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.
1836