https://www.bleepingcomputer.com/news/microsoft/windows-7-gets-final-monthly-rollup-update-before-end-of-life/

Windows 7 has just received its last set of security updates. After today, Windows 7 won't receive any security or non-security updates from Microsoft, and it is now considered an unsupported operating system.

The new monthly rollup and non-security update for Windows 7 come with a couple of security fixes. Microsoft says KB4534310 for Windows 7 has resolved security issues affecting Windows Cryptography, Windows Input and Composition, Windows Management, and other components.