kb5089549

On May 12, 2026, Microsoft released KB5089549 for Windows 11 versions 25H2 and 24H2, raising them to builds 26200.8457 and 26100.8457, while KB5089548 updates Windows 11 version 26H1 to build 28000.2113. The notable part is not that Patch Tuesday arrived; it always does. The notable part is that...

Microsoft released KB5089549 on May 12, 2026, as the monthly cumulative security update for Windows 11 versions 25H2 and 24H2, moving systems to OS builds 26200.8457 and 26100.8457 while bundling security fixes, servicing-stack changes, and selected reliability improvements. The update looks...