Release and core changes
Apple released iOS 27, iPadOS 27, and macOS Golden Gate 27 on September 14. The updates deliver Siri AI and Liquid Glass refinements to compatible devices. macOS Golden Gate 27 marks the final version that includes Rosetta support for Intel apps.
The three operating systems arrived as free over-the-air downloads. Users reach them through the standard Settings path on iPhone and iPad or the System Settings app on Mac. High launch-day demand caused the update servers to take several minutes to serve every device.
Hardware requirements
iOS 27 runs on the iPhone 11 series and later models plus the iPhone SE 2. iPadOS 27 supports second-generation and newer iPad Pro models, fourth-generation and later iPad Air tablets, sixth-generation and later iPad mini units, and the A16 iPad.
These cutoffs leave older hardware behind. Owners of an iPhone X or first-generation iPad Pro receive no further major updates. The list matches the pattern Apple has followed for the last several releases, where each new OS drops support for devices that lack the necessary neural-engine performance or display capabilities.
Feature delivery
Siri AI requires an optional sign-up inside the Siri section of the Settings app. Once enabled, the feature supplies a more capable version of the assistant that can handle additional tasks and context. Liquid Glass refinements update visual elements across the system, including window borders, icons, and control surfaces.
macOS Golden Gate 27 carries the same Siri AI addition and interface adjustments. It also drops future Rosetta compatibility, confirming that Intel-based Macs will lose the translation layer that has allowed them to run Apple Silicon binaries since the transition began.
Regional rollout differences
Users in the European Union and China continue to encounter setup issues that do not appear in other regions. The sources note that these kinks remain under active work. No further details on the exact nature of the problems were released at launch.
The staggered availability shows how regulatory and market conditions continue to shape the pace at which users receive the full feature set. In markets without those constraints, the update propagates without additional friction.
Why it matters
Engineers and developers who still run Intel-based Macs must now plan migrations or accept that newer macOS versions will drop translation support entirely. The explicit end of Rosetta removes the last bridge for legacy Intel software. Teams that have delayed hardware refreshes face a concrete deadline: either move to Apple Silicon or remain on an older OS branch that will receive fewer security updates over time.
The device cutoffs also affect purchasing decisions. Organizations that bought iPhone 11 or iPad Air 4 units in the last two years still qualify for the new software, but any fleet built around earlier hardware now requires replacement or continued use of iOS 26. The regional differences add another variable for global teams, as EU and China users may wait longer for stable Siri AI behavior.
For most owners of recent hardware the update arrives as another free download. Yet the clean break from Rosetta and the narrowed hardware support list together mark the point where Apple’s software stack no longer accommodates the prior generation of machines. App compatibility decisions, internal tooling choices, and refresh cycles will now align to that boundary rather than to any remaining translation layer.
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Sources:
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