As is tradition, Apple released beta versions of its new operating systems to developers on the first day of WWDC on June 9. Beta 1 is for developers only–the public beta will begin in July, probably after two or three developer-only betas.
The first beta release of iOS 26 has everything Apple demonstrated in its WWDC keynote: Liquid Glass, the new Phone app and features, the new Camera and Photos experience, and more.
Apple updated beta 1 for developers today, though the version number has only changed the last letter (from 23A5260n to 23A5260u). This is still “beta 1” and there are likely no new features, just a critical bug or security flaw fixed.
There are plenty of bugs and unrefined areas, as you would expect with the first beta release of a major new operating system update. Not everything is working as it should, and it is not advised to run this version of the OS unless you’re a developer or have a high tolerance for buggy or unoptimized software.
You can read all about all the new features in our iOS 26 superguide and find out the latest information about the iOS beta including when it will launch and how to install it in a separate story.
source: https://www.macworld.com/article/2815108/ios-26-beta-updated.html
