macOS Catalina build 19A583

19A583
Build of macOS Catalina
MacOS 10.15 19A583 Desktop.png
Architecturex64
Compiled
Timebomb
Works in
AboutMacOS Catalina About.png

macOS Catalina build 19A583 is the official GM2 and RTM build of macOS Catalina, which was released on 7 October 2019.