Apple shipped the first developer beta of macOS 27 "Golden Gate" after WWDC 2026, and an early hands-on look surfaces five additions that reveal where the platform is heading.
The update brings automatic tab grouping to Safari — organizing open tabs by topic or source site — plus broader ultrawide monitor support with persistent layout memory so connected displays no longer scramble icons on reconnect. iPhone mirroring gains a dual-pane iPad-style layout on supported apps and direct access to iOS Control Center from the Mac menu bar. A Liquid Glass intensity slider lands under System Settings > Appearance, letting users dial down the translucency Apple introduced last year. And a rebuilt Siri integrates into Spotlight, ships with its own dedicated app, syncs chat history across devices for the first time, and leans on Google's AI models to compete more directly with ChatGPT and Gemini. Developer beta access is now free with an Apple Account registration, down from $99 per year; the public beta arrives in July and the full release is expected this fall.
Two details stand out. The Liquid Glass slider arrives a full year after Apple debuted the aesthetic to widespread grumbling — a sign that user criticism does eventually reach Cupertino, just on Apple's schedule. More strategically, acknowledging Google's AI models as a component is an unusual disclosure for a company that typically treats its supply chain as proprietary; it also puts Apple in direct competition with two platforms it is simultaneously partnering with.
The writer was still on the Siri waiting list at beta time, so the headliner feature remains unverified. Apple has a history of shipping integrations labeled AI before the underlying capability catches up — fall will be the actual test.