9to5Mac Daily iOS 26.1 beta 4 major changes
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Oct 21, 2025 Exciting changes are brewing with iOS 26.1 beta 4, introducing a new setting to adjust the transparency of Liquid Glass on your devices. This update enhances app contrast and impacts notifications. Meanwhile, the iPhone Air has taken China by storm, selling out almost immediately with delayed shipping dates. Yet, not all news is bright—Apple engineers are expressing concerns over Siri's performance in upcoming builds, while leadership changes loom in the AI development team.
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Liquid Glass Gains Opacity Control
- iOS 26.1 Beta 4 adds a new Liquid Glass setting labeled clear or tinted to control opacity and contrast.
- The tinted option increases opacity across system UI, lock screen notifications, and compatible third-party apps.
How To Change Liquid Glass Opacity
- Go to Settings > Display & Brightness > Liquid Glass to select Clear or Tinted in developer beta builds.
- Expect the choice to apply systemwide including third-party apps that implement Liquid Glass.
iPhone Air Sells Out Fast In China
- The iPhone Air launched later in China because it is eSIM-only and China restricts eSIMs.
- Preorders reportedly sold out within minutes at many Apple Stores and online shipping slips to November.
