Apple rolls out 16 patches addressing a wide range of Catalina bugs in its MacOS Catalina operating system. The security fixes are exclusively for MacOS 10.15; so pre-Catalina releases will have to wait for fixes. Apple also released patches for Apple s iCloud software for Windows 7.14 and 10.7 versions of iCloud. Apple notified customers that its iTunes for Windows (12.10.1) also received multiple patches also impacting UIFoundation and WebKit.
Source: https://threatpost.com/apple-tackles-a-dozen-bugs-in-catalina/148988/