Apple today released new iOS, iPadOS, and macOS updates that are aimed at iPhone, iPad, and Mac users who are still running older versions of operating systems and are not able to upgrade to iOS 17 or macOS Ventura.
The macOS Monterey 12.6.9 and macOS Big Sur 11.7.10 updates can be downloaded on all eligible Macs using the Software Update section of System Preferences.
iOS 15.7.9 and iPadOS 15.7.9 can be downloaded on eligible iPhones over-the-air by going to Settings > General > Software Update.
Read more at MacRumors.com