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Apple Releases iOS 26 Developer Beta 7 and Public Beta 4

The update emphasizes polish with a redesigned Blood Oxygen experience alongside an Adaptive Power notifications toggle.

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New feature in iOS 26 Beta 7 alerts you when your iPhone's performance drops to extend battery life
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Overview

  • Apple seeded developer beta 7 for iOS 26 (build 23A5326a) alongside iPadOS 26, macOS Tahoe 26, watchOS 26, tvOS 26, and visionOS 26, and issued public beta 4 for iOS, iPadOS, and macOS.
  • Testers found a redesigned Blood Oxygen feature for Apple Watch Series 9, Series 10, and Ultra 2 models sold in the U.S. since mid‑January 2024, paired with the latest iOS and watchOS betas.
  • iOS 26 beta 7 adds an Adaptive Power notifications toggle in Settings under Battery → Power Mode; Adaptive Power Mode itself is supported on iPhone 15 Pro and newer.
  • iOS 26 is compatible with iPhone 11 and later and iPhone SE (2nd generation and later), excluding A12‑era models such as iPhone XS, XS Max, and XR.
  • Apple is focusing on stability as final releases approach, with multiple outlets reporting an expected September rollout, and testers are advised to use secondary devices and maintain backups.