Was October 27, 2026 the day a new macOS came out?
NO
No — macOS 27 Golden Gate shipped on September 14, 2026, 43 days ago.
Why
- macOS 27 Golden Gate released Monday, September 14, 2026
- Yesterday brought macOS 27.2 (build 26B123), an update, not a new OS
- Announced at WWDC on June 8, 2026