Apple Releases iOS 26.4 and macOS Tahoe 26.4 Betas: RCS Encryption, Battery Health Features, and More

Apple Unveils Second Developer Betas for iOS 26.4 and macOS Tahoe 26.4: Key Enhancements and Features

Apple has released the second developer betas for iOS 26.4 and macOS Tahoe 26.4, introducing a suite of new features and improvements aimed at enhancing user experience and security across its devices.

iOS 26.4 Beta 2: Enhancing Communication and Security

End-to-End Encryption for RCS Messaging

A significant advancement in iOS 26.4 Beta 2 is the testing of end-to-end encryption for Rich Communication Services (RCS) messages exchanged between iPhone and Android devices. This feature aims to bolster the security of cross-platform communications. When encryption is active, a lock icon will appear on the message, indicating a secure conversation. It’s important to note that this feature is currently in the testing phase and is not yet available to all users or carriers. Both parties must have the latest software versions—iOS 26.4 for iPhone users and the latest Google Messages app for Android users—to utilize this feature. Apple plans to fully implement end-to-end RCS encryption later this year.

Stolen Device Protection Enabled by Default

The Stolen Device Protection feature, introduced in earlier versions, is now enabled by default in iOS 26.4 Beta 2. This security measure requires biometric authentication to access sensitive areas such as passwords and purchase controls, adding an extra layer of protection against unauthorized access.

Apple Music’s Playlist Playground

Apple Music introduces Playlist Playground, an innovative feature that allows users to generate AI-curated playlists based on text prompts. This tool offers a personalized music experience, enabling users to create playlists tailored to their preferences. Additionally, Apple Music’s interface has been updated with full-page artwork and concert listings, enhancing the visual and functional aspects of the app.

Video Podcast Support in Apple Podcasts

Apple Podcasts now supports video podcasts, utilizing HTTP Live Streaming (HLS) technology. This addition provides users with flexible streaming options and the ability to download episodes for offline viewing, catering to the growing demand for video content in podcasting.

Unified Apple Account Design

A new unified Apple Account design streamlines access to account settings across various apps. This redesign aims to provide a consistent and user-friendly interface for managing Apple services and subscriptions.

Freeform’s Creator Studio

Freeform, Apple’s collaborative whiteboarding app, has launched Creator Studio, offering advanced graphics and AI tools for subscribers. This feature enhances the app’s capabilities, making it a more powerful tool for creative projects and team collaborations.

Additional Improvements

– Home Screen Edit Menu: The Edit menu on the Home Screen now features a more transparent Liquid Glass design, providing a sleek and modern look.

– Games App Search Bar: The search bar in the Games app has been relocated from the bottom to the top of the display, improving accessibility and user experience.

– App Store and Apple Music Account Hub: The Apple Account wording is now left-aligned and features the same rainbow logo as seen in the Settings app, ensuring consistency across platforms.

– Accessibility Enhancements: A new Reduce Highlighting Effects option has been added under the Display and Text Size section in Accessibility settings, catering to users with specific visual preferences.

– Software Update Build Numbers: Users can now tap on the name of a new iOS update in the Software Update section to view the build number, providing more transparency about the update details.

– Beta Updates Management: If beta updates are enabled but not installed for a four-month period, Apple will automatically switch the device to the public release audience, ensuring users remain on stable software versions.

macOS Tahoe 26.4 Beta 2: Battery Management and Safari Enhancements

Charge Limit Feature

macOS Tahoe 26.4 Beta 2 introduces a new Charge Limit feature, allowing MacBook users to set a maximum charge level between 80% and 100%. This feature aims to preserve long-term battery health by preventing the battery from charging to full capacity unnecessarily. Users can access this setting in the System Settings app under the Battery section.

Return of Compact Tab Layout in Safari

Responding to user feedback, Apple has reinstated the Compact tab layout in Safari. This layout option, which was removed in earlier versions, offers a streamlined browsing experience by consolidating tabs into a more compact space, freeing up screen real estate for content.

Rosetta 2 Deprecation Warnings

Apple is preparing for the eventual phase-out of Rosetta 2, the translation layer that allows Intel-based applications to run on Apple Silicon Macs. In macOS Tahoe 26.4 Beta 2, users launching apps that rely on Rosetta 2 will receive warnings indicating that these apps will no longer function in future macOS versions. This proactive approach gives users and developers ample time to transition to native Apple Silicon applications.

Additional Improvements

– Software Update Build Numbers: Similar to iOS, macOS users can now tap on the name of a new update in the Software Update section to view the build number, providing more detailed information about the update.

– Beta Updates Management: The beta update management system has been revised. If beta updates are enabled but not installed for a four-month period, the system will automatically switch to the public release channel, ensuring users remain on stable software versions.

Conclusion

The second developer betas of iOS 26.4 and macOS Tahoe 26.4 bring a host of new features and improvements aimed at enhancing security, user experience, and device longevity. From encrypted cross-platform messaging and advanced music personalization to battery health management and browser enhancements, these updates reflect Apple’s commitment to continuous innovation and user satisfaction. Developers are encouraged to explore these betas to prepare their applications for the upcoming public releases.