https://arstechnica.com/gadgets/2020/09/apple-releases-macos-catalina-10-15-7-possibly-the-last-catalina-update/

Earlier this week, Apple released updates for iOS, iPadOS, and watchOS—but nothing for macOS. Usually, Cupertino updates all its operating systems at once, but we're in an odd place right now with new annual releases of the former three making their way to users' devices while macOS Big Sur still sits an indeterminate amount of days away.