Apple has released macOS Big Sur 11.6.6 and a security update to macOS Catalina 10.15.7, bringing minor updates to the last-generation Mac operating systems likely focused on security fixes and under-the-hood improvements.
The macOS Big Sur 11.6.6 update was released alongside Apple’s current slate of software updates, including macOS Monterey 12.4 and iOS 15.5.
It isn’t yet clear what specific fixes or updates are included in macOS 11.6.6 or macOS 10.15.7, but they’re likely to be minor with no major user-facing features.
Read more at AppleInsider.com