March 10, 2026—KB5078883 (OS Build 22631.6783)

March 10, 2026—KB5078883 OS Build 22631.6783 ​​​​​This cumulative update for Windows 11, version 23H2 KB5078883, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security update...

February 10, 2026—KB5075941 (OS Build 22631.6649)

February 10, 2026—KB5075941 OS Build 22631.6649 ​​​​​This cumulative update for Windows 11, version 23H2 KB5075941, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security...

February 10, 2026—KB5075899 (OS Build 26100.32370)

February 10, 2026—KB5075899 OS Build 26100.32370 ​​​​​This cumulative update for Windows Server 2025 KB5075899, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates...

January 13, 2026—KB5074109 (OS Builds 26200.7623 and 26100.7623)

January 13, 2026—KB5074109 OS Builds 26200.7623 and 26100.7623 ​​​​​This cumulative update for Windows 11, version 25H2 and 24H2 KB5074109, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about...

June 26, 2025—KB5060826 (OS Builds 22621.5549 and 22631.5549) Preview

June 26, 2025—KB5060826 OS Builds 22621.5549 and 22631.5549 Preview End of servicing After June 26, 2025, Windows 11 version 22H2 Enterprise and Education editions will no longer receive non-security preview updates. However, monthly security updates will continue until October 14, 2025. After th...