MacOS 12.6.1

macOS 12.6.1 (build 21G217) is an update to macOS 12 (Monterey) that was released on October 24, 2022 by Apple Inc. A revised updater became available on the following November 1st with the same build number.

Development history
This build included security updates to address vulnerabilities in file integrity, potential for arbitrary code execution in, and preventing an app with root privileges from accessing private information in a sandbox. After its initial release on October 24, 2022, some users noted issues during the installation process, and a new updater was posted on November 1, 2022 with the same exact build number.