iOS 27 has reached its fourth public beta, joined by new public test versions of iPadOS 27, macOS 27 Golden Gate, and tvOS 27. Anyone enrolled in the Beta Software Program with a compatible device can now download the latest builds.
The updates arrive as the summer testing cycle moves deeper into its refinement phase. Large features are already in place, while attention increasingly shifts toward reliability, battery behavior, performance, interface consistency, and compatibility with third-party apps.
Public beta 4 closely follows the sixth developer beta for iPhone, iPad, and Mac. The public and developer numbering is different because developers received earlier builds before the public program opened in July.
This new round does not appear designed around one headline feature. It gives testers a more mature version of the software introduced at WWDC26, including Siri AI, expanded Apple Intelligence tools, child safety controls, performance improvements, and refinements to Liquid Glass.
iOS 27 Public Beta Moves Closer to Daily Use
iOS 27 represents one of the most ambitious iPhone software releases in years, largely because of the new Siri AI experience. The assistant can participate in longer conversations, access personal context, search for information, understand onscreen content, and perform actions within supported apps.
A dedicated Siri app keeps conversations together and allows them to continue across compatible devices. Siri can also help draft text, provide writing feedback, search through personal information, and respond to more open-ended questions.
Public beta 4 continues testing these capabilities, although access to individual AI features can depend on the device, language, region, and availability during the testing period. Siri AI is initially being prepared for English, with wider language support expected later.
The Photos app also gains more advanced editing tools. Spatial Reframing can adjust the composition of an existing image, while Extend can generate additional content around its edges. An improved Clean Up tool is designed to remove larger unwanted objects.
Other changes reach familiar parts of the system. Safari can automatically organize tabs by topic and monitor selected pages for updates such as price reductions or product restocks. The Passwords app can identify weak or compromised credentials and help update supported accounts.
iOS 27 also expands child safety controls with website approval requests, redesigned parental settings, communication protections, Time Allowances, and schedules that determine which categories of apps remain available during different parts of the day.
Public beta 4 gives the company another large collection of real-world testing data. Problems that do not appear during controlled internal testing can become visible when the software reaches thousands of devices using different carriers, Wi-Fi networks, accessories, apps, and regional settings.
iPadOS 27 Tests Performance and Intelligence
iPadOS 27 shares many of the intelligence, safety, and design changes found on iPhone, but its performance improvements may be equally valuable for people using an iPad as a primary mobile computer.
File transfers between an iPad and an external drive are advertised as up to five times faster under supported conditions. App launching, AirDrop, memory management, display rendering, and CPU scheduling have also received attention.
The fourth public beta gives users another opportunity to examine these improvements outside benchmark testing. Moving large video projects, opening complex documents, managing several windows, and working with external storage can reveal slowdowns or interruptions that simpler tasks might never expose.
Visual Intelligence is available directly on iPad, allowing users to ask questions about onscreen material. An item can be selected with a finger or circled with Apple Pencil before being sent into the visual search experience.
The dedicated Siri app is particularly suited to the larger display. Conversation history can remain visible in a sidebar while the current exchange occupies the main workspace, making it easier to refer to previous information.
Apple Intelligence also reaches apps including Messages, Photos, Mail, Safari, Shortcuts, and Image Playground. Some capabilities require newer processors, so installing iPadOS 27 does not guarantee that every promoted AI feature will appear on every compatible iPad.
Public testing remains valuable even on models that lack those functions. Changes to networking, system search, window management, external displays, storage access, and app compatibility affect a much wider range of devices.
macOS Golden Gate Receives More Refinement
macOS 27 Golden Gate continues the same approach on Mac, combining the new intelligence system with interface adjustments and performance work.
Siri AI can work with information from documents, messages, emails, photos, and supported apps. Visual Intelligence allows users to ask about content captured from the screen, while the Siri app provides a persistent space for conversations that can continue from an iPhone or iPad.
Liquid Glass remains one of the most visible parts of Golden Gate. The design uses translucency and refraction across toolbars, controls, sidebars, and menus. Later beta builds are an opportunity to improve contrast and readability in situations where backgrounds or window colors make transparent elements difficult to see.
Golden Gate also introduces a slider for adjusting the appearance of Liquid Glass, moving between a clearer style and a more tinted presentation. This gives users some control over a design that can look very different depending on the display, wallpaper, and apps in use.
For Mac testers, application compatibility deserves as much attention as the visual changes. Audio tools, security utilities, virtual machines, professional plug-ins, storage drivers, and corporate networking software often interact with parts of macOS that change during a major upgrade.
A program may open normally while one specific function fails. Testing the actual workflow is therefore more useful than checking whether an app reaches its main window.
tvOS 27 Brings the New Design to the Living Room
The fourth tvOS 27 public beta extends Liquid Glass to Apple TV, giving system controls, menus, and media interfaces a more vivid appearance.
tvOS 27 also continues work on FaceTime, Siri, accessibility, screen savers, smart-home controls, and the connection between Apple TV and other devices. FaceTime Live Captions supports more languages, while incoming call notifications can appear directly on the television.
The update improves the way subtitles appear during difficult-to-hear dialogue and expands the interaction between Apple TV, AirPods, iPhone, and HomePod. Since Apple TV can also operate as a smart-home hub, testers should check whether automations and remote Home access continue running normally after the update.
Beta software on a television may seem less risky than installing it on a primary phone or computer, but interruptions can still affect streaming apps, HDMI control, receivers, remotes, smart-home accessories, and family entertainment.
Public Beta Still Needs a Safety Net
Enrollment in the public program is free, and the new builds appear through Software Update after a compatible device is registered. Feedback Assistant is included so testers can report crashes, unexpected behavior, accessibility problems, and incorrect interface elements.
A later public beta is generally more polished than the first release, but it remains unfinished software. Battery drain, excess heat, unreliable wireless connections, app crashes, and temporary data-syncing problems can still occur.
Installing the beta on a secondary device provides room to explore without placing daily communication or paid work at risk. Anyone testing on a primary iPhone, iPad, or Mac should create a recoverable backup before updating and verify that essential banking, authentication, medical, work, and accessibility apps continue operating.
A useful beta report should describe the action that triggered the problem, whether it can be repeated, and which device and software build were involved. Screenshots, screen recordings, and diagnostics collected through Feedback Assistant can give engineers the context needed to reproduce a failure before the finished operating systems reach everyone this fall.
