Apple has just released a revised iOS 26 beta 1 update for iPhone 15 and iPhone 16 with revised build number of 23A5260u.
New 23A5260u Build of iOS 26 Beta 1 Released for iPhone 15 and iPhone 16 Devices, Download and Install it Right Away
It’s very important to know that this build is only available for iPhone 15 and iPhone 16 users only. If you have an iPhone model older than that, then you won’t see the update for your device at all.
In order to download the new iOS 26 beta 1 with build 23A5260u, just go to Settings > General > Software Update. When the new beta shows up, tap on Update Now.
At the time of writing, it’s unknown what has changed in this update. But since this is for iPhone 15 and iPhone 16 devices only, I’m only going to assume that it has something to do with Apple Intelligence in the background.
That is just speculation, and it’s best we keep it at that. If there are any known changes in this update, I’ll definitely inform everyone about them.
Again, if you have an iPhone 15 or iPhone 16, go ahead and download the update right away.
You’ll find all the necessary details here if you’re planning to download and install iOS 26 and iPadOS 26 beta 1 on your iPhone and iPad. If you’re planning to downgrade back to iOS 18 or iPadOS 18, you’ll find the details for it here.
Update: This update fixes a battery-related issue on iPhone 15 and iPhone 16.
