Apple previews macOS 27 Golden Gate with Siri AI app

Apple previewed macOS 27 Golden Gate at WWDC 2026 and published a macOS preview page listing the release as coming this fall (Apple). Apple's page states, "Siri AI coming in English later this year," and introduces a dedicated Siri AI app for Mac that supports conversational, open-ended questions and can access personal content such as Photos, Mail, and Notes (Apple). MacRumors reports the first developer beta is available now, a public beta begins in July, and a general release is expected this fall (MacRumors). Apple also highlights a Liquid Glass refresh, including a global opacity slider and tighter window corner radii (Apple, Ars Technica).

Per Apple, Siri AI is powered by Apple Intelligence and integrated with Spotlight, letting users type or speak queries and surface "Ask Siri" as a top Spotlight hit. Apple and The Verge report rebuilt search indexing intended to surface new and old content more reliably across Spotlight, Mail, and Photos; The Verge describes a demo in which Siri compared multiple PDFs and generated a comparison table (Apple, The Verge). Apple lists enhanced app actions for Messages, Music, and Reminders, and Visual Intelligence features that let Siri act on on-screen content (Apple).

OS-level indexing plus a searchable, conversational assistant change where developer investment in app integration and Spotlight APIs yields user-visible automation. Platform-provided assistant capabilities tend to shift a share of workflow automation from third-party apps into OS-level hooks, affecting how teams prioritize integration work versus building standalone assistant features.

Watch the beta releases and Apple developer documentation for permission models, Spotlight indexing APIs, and interaction surfaces for Siri AI, plus any language or region limits at launch and how latency and privacy trade-offs are documented for on-device versus cloud processing.