Apple announces iOS 27 at WWDC 2026, presenting the update as a focus on fixes and system refinements rather than a redesign. Multiple reports say iOS 27 improves perceived performance across iPhone models, including faster app launches and overall responsiveness. One outlet highlights that a rewritten CPU scheduler delivers measurable speed gains that extend to older devices such as iPhone 11. Several sources also point to improvements to AirDrop and faster search and system behavior.
On the interface side, iOS 27 includes further refinements to “Liquid Glass,” with at least one report describing changes that aim to make the effect less problematic for users. For AI features, Apple is introducing a new Siri AI experience. Reports agree that Siri is built using Apple’s next-generation foundation-model approach and is associated with Gemini-powered elements, with English support expected to arrive first. Alongside these features, Apple says iOS 27 includes bug fixes, stability improvements, and under-the-hood optimizations intended to address slowdowns users may have experienced in iOS 26.