Apple has released the fourth public betas for iOS 27, iPadOS 27, tvOS 27, and macOS Golden Gate. This update follows last week's third betas and comes a few hours after the sixth developer betas. Interested users can join by signing up on Apple's beta website and opting in through their device's settings. The testing phase is nearing completion, with recent betas introducing minor updates like new wallpapers for macOS Golden Gate and a Shortcuts splash screen and Game Center icon for iOS 27.