June 9, 2026—KB5094125 (OS Build 26100.32995)

June 9, 2026—KB5094125 OS Build 26100.32995 ​​​​​This cumulative update for Windows Server 2025 KB5094125, 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—KB5073450 (OS Build 25398.2092)

January 13, 2026—KB5073450 OS Build 25398.2092 This cumulative update for Windows Server, version 23H2 KB5073450, 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...

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...