Apple has released the sixth developer beta versions of its upcoming operating systems, including iOS 26, iPadOS 26, macOS Tahoe 26, watchOS 26, tvOS 26, and visionOS 26. These updates were made available on August 11, 2025, as Apple accelerates its beta release cadence ahead of the official software launches scheduled for September. The iOS 26 beta 6 introduces several new features such as an onboarding sequence, six new iPhone ringtones that are variants of the "Reflection" melody, and improved app opening and closing animations. The update also includes refinements to the "Liquid Glass" visual effect, enhancing readability and overall user experience. Performance improvements have been noted, including faster and more responsive app launches and the resolution of lag issues in the phone app. The macOS Tahoe 26 beta 6 continues to bring the Liquid Glass design along with new Apple Intelligence features for Macs. The watchOS 26, tvOS 26, and visionOS 26 betas have also been seeded to developers, preparing for their official rollout later this year. These updates reflect Apple's ongoing efforts to refine user interface elements and system performance across its ecosystem.