macOS 10.15.0 (build 19A583) is the first public release of macOS 10.15 (Catalina) on October 7, 2019 by Apple Inc.
Development history[]
The first developer beta of macOS 10.15.0 was seeded on June 3 during the 2019 Worldwide Developers Conference.[1]
References[]
- ↑ Apple Seeds First Beta of macOS 10.15 Catalina to Developers by Juli Clover, MacRumors. 2019-06-03.