Apple and Google Push RCS Encryption Forward in iOS 26.4 Beta 2

In a major step toward bridging the messaging gap between iPhone and Android users, Apple and Google have begun testing end-to-end encryption (E2EE) for RCS (Rich Communication Services) messages exchanged between the two ecosystems in the second iOS 26.4 beta.

This move marks a significant evolution in cross-platform messaging security. Previously, RCS messages between iPhone and Android devices lacked full encryption, leaving them vulnerable to interception during transit. With this beta release, Apple is enabling encrypted RCS conversations for the first time, ensuring that messages sent from an iPhone to an Android device—and vice versa—are protected with the same level of security that has long been standard for iMessage.

From Limited Testing to Full Cross-Platform Encryption

The journey to this point began in the first iOS 26.4 beta, where Apple initially tested E2EE but limited it strictly to iPhone-to-iPhone communications with iMessage disabled. This was more of a controlled internal test than a true cross-platform feature. Now, with beta 2, the scope has expanded dramatically. iPhone users can now send encrypted RCS messages directly to Android devices, provided both parties are running the latest beta software—iOS 26.4 on iPhone and the most recent version of Google Messages on Android.

This is not just a technical tweak; it’s a statement of intent. By collaborating with the GSM Association, Apple has aligned its implementation with industry standards, ensuring that encryption keys are managed securely and that no third party—including Apple or Google—can access the content of the messages.

What This Means for Users

For everyday users, the implications are profound. Cross-platform messaging has long been a sore point for consumers, with green bubbles (SMS/MMS) on iPhones often lacking the features, quality, and security of blue iMessage bubbles. RCS was supposed to close that gap by introducing read receipts, typing indicators, high-quality media sharing, and group chat improvements. However, without encryption, privacy-conscious users were still hesitant to rely on RCS for sensitive conversations.

Now, with E2EE in place, iPhone and Android users can communicate with the confidence that their messages are private and secure from end to end. This is particularly important for business communications, personal data sharing, and any conversation where privacy matters.

Not Quite Ready for Prime Time

Despite the excitement, Apple has made it clear that this feature is still in beta and will not be included in the upcoming iOS 26.4 public release. According to Apple’s developer release notes, E2EE for RCS will be available to customers in future releases of iOS, iPadOS, macOS, and watchOS 26. This phased approach allows Apple and Google to iron out any issues and ensure a smooth rollout across all supported devices and carriers.

It’s also worth noting that, during the beta period, E2EE is not available for all devices or all carriers. Apple and Google are likely working with network providers to ensure compatibility and performance before a full public launch.

The Bigger Picture: Closing the Messaging Divide

This development is more than just a technical upgrade—it’s a strategic move in the ongoing rivalry between Apple and Google. For years, Apple has leveraged iMessage as a key differentiator for the iPhone, while Android users have pushed for better interoperability. By bringing E2EE to RCS, Apple is acknowledging the importance of secure, feature-rich messaging for all users, regardless of their device.

Moreover, this move could accelerate the adoption of RCS globally. With both tech giants backing secure RCS, carriers and manufacturers may be more inclined to support the standard, potentially making it the new default for SMS and MMS worldwide.

Looking Ahead

As the beta testing continues, users and developers alike will be watching closely for updates. The eventual public release of E2EE for RCS could mark the beginning of a new era in cross-platform messaging—one where security, privacy, and features are no longer exclusive to a single ecosystem.

For now, the second iOS 26.4 beta represents a promising step forward, bringing iPhone and Android users closer together in both functionality and trust. As Apple and Google continue to collaborate, the future of messaging looks more secure—and more inclusive—than ever before.

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