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8h ago

Apple Pushes OS 27 Beta 4 as Release Candidates for 26.6 Go Out to Developers

The updates move Siri AI and interface polish through testing and set the 26.6 stability build up for imminent public release.

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Apple logo displayed on an Apple Store building window.
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Overview

  • Apple seeded developer beta 4 for iOS 27, iPadOS 27, macOS 27 Golden Gate, tvOS 27 and watchOS 27 on July 20, 2026, and began rolling public betas for most OS 27 releases to testers.
  • Beta 4 focuses on Siri and UI refinements, adding a Siri splash screen and new voices, a Liquid Glass transparency slider, TV app automatic downloads, a Photos “Zoom to Fill” toggle, ProRes Log 2 video options, and per‑network Connectivity Assist.
  • The build also contains code strings referencing an iPhone with multiple internal batteries, a detail reported by developers as possible software evidence of a future dual‑battery design.
  • At the same time Apple pushed release‑candidate builds of iOS/iPadOS/macOS/watchOS/tvOS/visionOS 26.6, signaling that the 26.x maintenance and security update is close to public release and includes Spotlight optimizations and bug fixes.
  • Apple Intelligence features remain hardware‑gated: advanced Siri AI functions require recent Apple silicon iPhones, iPads and Macs, and macOS 27 will run only on Apple‑silicon Macs, so many older devices will not receive the full feature set.