Apple has just released the public beta of iOS 18.1, iPadOS 18.1, and macOS Sequoia 15.1, which includes upcoming features like the Apple Intelligence functionality, such as the text rewriter tool, a shiny new Siri design, and a 'Cleanup' tool for removing objects from photos, among others. Source: Apple users can register for beta testing eligibility through Apple's beta software program website. After registration, users can download it in their device settings.