Apple iOS 27 Beta 4 Is Here: What’s New, How to Download, and List of Supported Devices

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-Carlsen Martin

Updated: Tuesday, July 21, 2026, 14:07 [IST]

Apple has rolled out the fourth developer beta of iOS 27, giving developers and early testers another preview of the next major iPhone software update. While this release doesn’t introduce sweeping design changes, it refines several existing features across Siri, Photos, Apple TV, Camera, AirPods, and system settings.

The update also adds new controls aimed at improving media management, accessibility, and video recording ahead of the stable public rollout later this year. With iOS 27 Beta 4, Apple has focused on polishing the overall user experience with a number of feature additions and interface tweaks.

Apple TV Gets Automatic Episode Downloads

The Apple TV app now includes an Automatic Downloads toggle. Once enabled, the feature automatically downloads the next two episodes of a TV series for offline viewing. Downloaded episodes are removed from local storage after they have been watched, helping save storage space.

Photos App Adds New Display Option

The Photos app now offers a Zoom Photos to Fill setting that automatically enlarges images matching the iPhone’s display dimensions for a more immersive viewing experience. Apple has also removed the wallpaper dimming effect that appeared in the previous beta release.

Siri Receives More Customisation

Siri gains several quality-of-life improvements in Beta 4. Apple has redesigned the voice selection page for easier navigation and introduced new options for controlling the number of lines shown in Siri’s text responses.

Accessibility settings now include an Always Show Request option, which displays a live transcription of voice commands while interacting with Siri. Apple has also added a new introductory screen when launching Siri Search by swiping down on the Home Screen.

Camera App Adds ProRes Log Controls

The Camera app receives new tools for creators shooting in Apple ProRes. Users can now choose between Log and Log 2 recording formats, offering greater flexibility for colour grading and post-production workflows.

AirPods and Connectivity Improvements

Apple has redesigned the AirPods controls in Control Center, making Adaptive Audio settings easier to access and customise. The update also introduces per-network Connectivity Assist controls, allowing users to better manage cellular data usage on individual Wi-Fi networks.

Supported iPhone Models

The iOS 27 Developer Beta 4 is available for the following devices:

• iPhone 11 series and newer
• iPhone 12 series
• iPhone 13 series
• iPhone 14 series
• iPhone 15 series
• iPhone 16 series
• iPhone 17 series
• iPhone SE (2nd generation) and newer

Some Apple Intelligence features will remain exclusive to supported hardware and will not be available on older compatible iPhone models.

How to Download iOS 27 Developer Beta 4

Before installing any developer beta, Apple recommends backing up your iPhone, as pre-release software may contain bugs and stability issues.

To install iOS 27 Developer Beta 4:

1. Sign in to the Apple Developer Program using the Apple ID linked to your iPhone.
2. Open Settings.
3. Tap General > Software Update.
4. Select Beta Updates.
5. Choose iOS 27 Developer Beta.
6. Return to the Software Update page.
7. Tap Download and Install.
8. Follow the on-screen instructions and restart your iPhone to complete the installation.

Final Thoughts

With iOS 27 Beta 4, Apple continues to fine-tune the software ahead of its public release. While the update focuses on refinements rather than major new features, additions like automatic TV episode downloads, expanded Siri controls, ProRes Log improvements, and redesigned AirPods settings offer meaningful upgrades for developers and early adopters testing the next version of iOS.