Windows 11’s massive July 2026 update fixes 570 vulnerabilities and shows how AI is quietly reshaping Patch Tuesday itself
Microsoft released its largest Patch Tuesday security update in July 2026, fixing 570 vulnerabilities across its product suite—more than four times the 137 vulnerabilities addressed in July 2025. The update arrives as KB5101650, bringing Windows 11 version 25H2 to build 26200.8875 and version 24H2 to build 26100.8875.
While the sheer number of patched flaws is noteworthy, the update also marks a significant shift in how Microsoft handles security: the company is increasingly leveraging AI to identify and address vulnerabilities, reshaping the traditional Patch Tuesday process itself. This represents an early but notable example of AI’s expanding role in enterprise security operations.