Apple has released the fourth developer beta versions of its upcoming operating systems including iOS 26, iPadOS 26, macOS Tahoe 26, watchOS 26, tvOS 26, and visionOS 26 in late July 2025. Shortly thereafter, the company launched the first public beta versions of these operating systems, making them available for broader testing by users. The public beta releases include iOS 26, iPadOS 26, macOS Tahoe 26, watchOS 26, and tvOS 26, featuring Apple's new Liquid Glass design language. These updates follow a series of incremental beta releases starting from June 2025, with multiple developer betas preceding the public availability. Apple also issued a revised build of the iOS 26 and iPadOS 26 beta 4 to align with the public beta release. The macOS Sequoia 15.6 and watchOS 11.6, tvOS 18.6, and visionOS 2.6 versions have also reached release candidate status and have been released to the public. Apple CEO Tim Cook described iOS 26 as the company’s most popular beta ever. The public betas include new features and settings beyond those announced at Apple's Worldwide Developers Conference (WWDC). Installation guides and instructions for these public betas have been widely disseminated, emphasizing ease of access for users interested in testing the new software ahead of final releases.