https://www.bleepingcomputer.com/news/microsoft/windows-11-kb5055523-and-kb5055528-cumulative-updates-released/

Microsoft has released Windows 11 KB5055523 and KB5055528 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues.

Today's updates are mandatory as they contain the April 2025 Patch Tuesday security patches for vulnerabilities discovered in previous months.