Joe Rossignol / MacRumors: Apple says 79% of all iPhones and 86% of iPhones released in the last four years were running iOS 26 as of June 7, vs. 82% and 88% for iOS 18 before WWDC 2025 — Apple has shared updated iOS 26 and iPadOS 26 adoption figures, revealing how many iPhones and iPads were running those software versions …