Apple has released iOS 26 Beta 4, focusing primarily on refining the liquid glass effect. The transparency level has been adjusted, moving closer to Beta 2 from Beta 3, striking a balance that enhances both texture and readability. Additionally, the system has addressed several issues, including garbled contact avatars and the occasional disappearance of the battery icon in the Control Center. Icons for the Maps and Camera apps have also undergone optimizations, resulting in a more polished user experience. Overall, the update brings improved stability and smoother performance.