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Rare pre-Liquid Glass ‘iOS 19’ prototype provides tiny hint at iOS 27 plans

A newly discovered iPhone prototype offers a rare glimpse of the unreleased iOS 19, which was a precursor to iOS 26 sans Liquid Glass, and it may provide a hint of what’s coming in iOS 27.

Smartphone displaying an iOS update notification with several app icons labeled 'Waiting' on a wooden surface.
‘iOS 19’ never saw the light of day — until now.

At WWDC 2025, we witnessed the introduction of Apple’s controversial Liquid Glass design language. iOS 26 brought glass-like elements, replacing the long-standing flat aesthetic. Apple also jumped from iOS 18 to iOS 26, leaving iOS 19 nowhere to be found — until now.

Courtesy of collector Kyolet, AppleInsider was provided with exclusive imagery of an EVT-stage iPhone prototype, running an early InternalUI build of iOS 19.0. Unlike the final version of iOS 26, this unreleased variant of iOS 19 doesn’t feature a working implementation of Liquid Glass, even with the “Sensitive UI” setting enabled.

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