Apple launches iOS 26 beta 4 for developers with updates to Liquid Glass and AI notification summaries, ahead. A public beta is expected later this week.

With the fourth beta of iOS 26, Apple has again made changes to the Liquid Glass design that's available across the operating system,

Apple announced in June that the release of iOS 26 would first appear as developer betas as usual, with the first public beta set for July. When it reaches general release it will be on the 2025 releases, iPhone 17 series, as well the iPhone 16 series and plenty of much earlier models.