Apple releases macOS Catalina 10.15.1 and watchOS 6.1
https://arstechnica.com/gadgets/2019/10/apple-releases-macos-catalina-10-15-1-and-watchos-6-1/
Apple's habit of late has been to release most of its operating system updates for each platform all on the same day. But in one recent instance, though, macOS and watchOS came a single day after iOS, iPadOS, and tvOS updates.