Apple releases public beta 4 for iOS 27, macOS 27, iPadOS 27, tvOS 27 [U: watchOS 27]

https://9to5mac.com/wp-content/uploads/sites/6/2026/06/iOS-27-public.jpg?quality=82&strip=all&w=1600" />

Update, August 18, 1:06 p.m. ET: Apple has now published watchOS 27 Public Beta 4 (Build: 24R5353a).

The original story follows below

After releasing developer betas 6 earlier today, Apple is now rolling out iOS 27 public beta 4, alongside corresponding updates for some of its other platforms.

Here are the details.