Not Available For All’-Apple Changes iPhone Messaging Next Week – Forbes

Apple is preparing to launch iOS 26.5, a software update that introduces encrypted Rich Communication Services (RCS) for messaging between iPhones and Android devices. The update aims to resolve long-standing interoperability issues by bringing modern messaging features to cross-platform conversations without compromising the security standards associated with iMessage.

Rich Communication Services, or RCS, is an industry-standard protocol designed to replace SMS, and MMS. It enables features such as high-resolution media sharing, read receipts, and typing indicators. While Apple has previously integrated basic RCS support, the introduction of encryption in iOS 26.5 addresses a critical security gap for users communicating across different mobile operating systems.

According to reporting from 9to5Google, the implementation of encrypted RCS ensures that messages sent between Android and iOS devices are protected from interception by third parties, including carriers. This move aligns Apple’s cross-platform messaging more closely with the end-to-end encryption provided by the proprietary iMessage service.

The rollout of the update is imminent. 9to5Mac reports that Apple has already released iOS 26.5 RC 2, the second release candidate, to developers and public beta testers. This typically indicates that the software is in its final stages of polishing before a wide public release.

The public launch is expected to occur during the week of May 11, 2026, following the discovery of the release candidate on May 9, 2026.

Despite the technical readiness of the software, the feature may not be accessible to every user immediately. Forbes reports that the update is Not Available For All, suggesting that the deployment of encrypted RCS is contingent upon external factors.

The availability of RCS depends heavily on carrier support. Because RCS requires the mobile network operator to support the protocol, users on carriers that have not updated their infrastructure to handle encrypted RCS may find the feature missing even after installing iOS 26.5.

Regional regulatory environments may also play a role in the rollout. Apple has historically staggered the release of messaging features based on local laws and agreements with telecommunications providers, particularly within the European Union and North America.

For users preparing for the update, Geeky Gadgets advises several precautions before initiating the installation. These include verifying current iCloud backups and ensuring that third-party messaging apps are updated to their latest versions to prevent compatibility conflicts during the transition to the new protocol.

This update follows the release of iOS 26.4, which CNET notes laid the groundwork for the current version by introducing various system optimizations and preliminary messaging frameworks. The transition from 26.4 to 26.5 represents a shift from internal stability to outward-facing interoperability.

The move toward encrypted RCS is widely viewed as a response to increasing pressure from global regulators and the industry-wide push for a more open messaging ecosystem. By adopting a secure version of the RCS Universal Profile, Apple maintains its commitment to user privacy while reducing the friction associated with the green bubble versus blue bubble divide.

From a technical standpoint, the encryption layer in iOS 26.5 is expected to utilize a standard that is compatible with the encryption used by Google Messages, the primary RCS client for Android. This ensures that the security handshake occurs seamlessly between the two different operating systems without requiring users to manually exchange encryption keys.

While iMessage will remain the default for Apple-to-Apple communication, the enhancement of RCS provides a viable, secure alternative for the millions of users who operate in mixed-device environments. The update effectively elevates the baseline of mobile communication security for the general public.