MacOS 12.6.3

macOS 12.6.3 (build 21G419) is an update to macOS 12 (Monterey) that was released on January 23, 2023 by Apple Inc.

Features
This build included security updates to address vulnerabilities which could allow an app to gain root privileges, execute arbitrary code, and access user-sensitive data.

Development history
The first developer beta appeared on December 14, 2022. A release candidate became available to developers on January 18, 2023.