Apple has released the first public beta of macOS 27—code‑named Golden Gate—after three developer betas. The update brings a host of changes, but testers should be aware that beta software can still contain bugs that range from minor annoyances to major crashes. macOS 27 has generally held up well, with only occasional performance hiccups in Safari and some stability issues with the Spaces feature. Because each beta iteration can alter functionality, install with care.

To install the beta, enroll your Mac in Apple’s public beta program at https://beta.apple.com. Then open System Settings → General → Software → Update, tap the ‘i’ beside Beta Updates, and from the dropdown choose macOS 27 Golden Gate Public Beta. Hit ‘Done’ to install it. The process is straightforward, but remember that updates may roll back or change in later releases.

The headline of this release is the new Siri app and AI experience, which now indexes Messages, Mail, and other apps to answer questions and act on requests. Search has also been overhauled; Spotlight’s previous unreliability on older macOS versions is largely resolved. Other tweaks include a refreshed Liquid Glass effect, a unified corner radius for windows, and enhanced Apple Intelligence tools—such as redesigned writing aids, better Visual Intelligence, and a Safari extension builder that creates extensions from natural‑language commands. Shortcuts can now be generated from prompts, simplifying automation. iPhone mirroring gains more flexible aspect ratios, hinting at future foldable‑phone support.

Because beta software is still in development, stability can fluctuate from one build to the next. If you encounter issues, report them through Apple’s feedback channels. Until the official release, consider keeping a backup of critical data คล