iOS 27, macOS Golden Gate 27 bring AI Siri, end Rosetta support

What happened

Apple has released iOS 27 and macOS Golden Gate 27, the latest versions of its mobile and desktop operating systems, introducing an AI-enhanced version of Siri alongside further refinements to the "Liquid Glass" visual design language first introduced in earlier releases. Notably, macOS Golden Gate 27 has been confirmed as the final macOS release to support Rosetta, the translation layer that allows older apps built for Intel-based Macs to run on Apple's current Apple Silicon chips.

The update continues Apple's staged rollout of generative AI capabilities into Siri, building on the company's earlier efforts to modernise its voice assistant with more conversational, context-aware responses. The Liquid Glass refinements represent an iterative evolution of the translucent, layered interface style Apple has been rolling out across its platforms rather than a wholesale redesign.

Why it matters

This release matters most as a signal of where Apple's AI strategy is heading: Siri is being positioned as the primary surface through which everyday users will interact with Apple's generative AI capabilities, rather than a standalone chatbot experience. For an installed base of hundreds of millions of devices, even incremental AI upgrades to a default assistant have outsized reach compared with new standalone AI apps.

The decision to retire Rosetta support in this cycle also matters for enterprises and developers still running legacy Intel-native software on Mac hardware. It marks a firm deadline for the multi-year transition to Apple Silicon and forces a final wave of application modernisation, testing and vendor coordination for organisations that have delayed the move.

The Renascence take

The headline feature here is AI, but the more interesting story for experience leaders is the design continuity. Apple is treating Liquid Glass as a living interface, not a one-off launch — small, cumulative refinements that most users won't consciously notice but will collectively feel as "it works better now."

Most coverage will focus on Siri's AI upgrade, but the sharper lesson is in how Apple manages change: interface evolution in small, low-friction increments, paired with a clearly telegraphed, hard deadline for legacy support like Rosetta. That combination — soften the visible change, harden the technical deadline — is a deliberate behavioural sequencing choice, not an accident. Organisations running their own platform migrations should note the pairing: give users continuity on the surface while forcing discipline underneath, rather than bundling disruptive interface change with disruptive technical change in the same release.