Apple has rolled out macOS 27 Golden Gate beta 5 to developers, continuing its pre‑launch testing cycle. Three weeks after beta 4, the new build focuses on bug fixes and performance improvements. The update introduces the new Siri app with a revamped AI, and an AI‑powered Shortcuts app that accepts natural‑language prompts. Safari now includes a prompt‑based extension builder, and the OS features Golden Gate‑themed wallpapers and screensavers. Apple has also reverted to fixed‑radius corners for windows and apps, undoing the dynamic changes introduced in macOS 26.

The beta’s build number is 26A5406e. To install, back up your Mac, open System Settings, go to General → Software Update, tap the i‑icon next to Beta Updates, choose macOS Developer Golden Gate Beta, and click Done. Apple is continuing to refine the OS ahead of its official release later this year.

If you spot new features or bugs in the beta, share your findings in the comments. Stay tuned for further updates as Apple polishes the upcoming macOS release.