Apple has released iOS 26.5 to the public after a six-week beta testing period, bringing a major security enhancement to cross-platform messaging: end-to-end encryption for RCS (Rich Communication Services) messages. While the update also includes new wallpapers and Apple Maps features, the encryption update is the headline addition, addressing a long-standing privacy gap between iPhone and Android users.
The rollout of RCS encryption is being handled gradually, with Apple labeling it as a beta feature. It is automatically enabled by default for users on supported carriers, but can be toggled off via Settings > Messages > RCS Messaging > End-to-End Encryption (Beta). Apple has published a webpage listing carriers that support the feature, but warns that even for listed carriers, the encryption may not be available to all users immediately. The company states that as the rollout progresses, encryption will be automatically enabled for new and existing conversations.
This update builds on Apple's initial adoption of RCS in iOS 18.1, which introduced richer messaging features between iPhones and Android devices, including typing indicators, read receipts, and high-resolution media sharing. End-to-end encryption for RCS was first announced by Apple in March 2024, and was beta-tested in iOS 26.4 earlier this year. With iOS 26.5, the feature is now beginning to reach a broader audience, though its gradual deployment means not all users will see it immediately.
The implementation uses the same underlying encryption standards that iMessage has employed since 2011, ensuring that messages are scrambled from sender to receiver and cannot be intercepted by carriers or third parties. Apple has updated the Messages app interface to indicate encrypted conversations: a lock icon now appears at the top of message threads for both iPhone and Android users when RCS encryption is active. This lock icon is the primary visual cue that the feature has been enabled on a given carrier and device.
Historically, SMS and standard RCS messages lacked end-to-end encryption, leaving them vulnerable to interception. Apple's move aligns with broader industry trends toward encrypted communications, following similar steps by Google, which added end-to-end encryption to its own RCS implementation in Google Messages in 2020. However, Google's solution only worked within its own ecosystem, while Apple's approach aims to provide interoperable encryption across different messaging clients that support the RCS Universal Profile.
The gradual rollout is likely due to the complexity of ensuring end-to-end encryption works seamlessly across diverse carrier networks and device manufacturers. Apple has worked with carriers to upgrade their infrastructure to support the required encryption keys. The feature relies on the GSMA's RCS specifications, which recently incorporated support for end-to-end encryption as part of the Universal Profile 3.0 standard. Apple's implementation is compliant with this standard, ensuring compatibility with other RCS clients that adopt the same encryption protocols.
For users, the practical impact is significant. Private conversations between iPhone and Android users will now have the same level of security as iMessage chats. This is particularly important for sensitive communications such as financial discussions, healthcare appointments, or personal plans. With cyber threats on the rise and increasing scrutiny of messaging app security, Apple's move strengthens the privacy of over one billion active iPhone users who communicate with Android contacts.
However, there are limitations. The encryption only applies to one-on-one RCS messages; group RCS chats, while available since iOS 18.1, are not yet encrypted. Apple has not provided a timeline for extending encryption to group conversations. Additionally, the encryption is only active when both parties are using RCS-compatible apps that support the GSMA's encryption standard. If an Android user's messaging app lacks the feature, messages will fall back to unencrypted RCS or SMS.
Apple has also emphasized that the encryption is carrier-dependent. Users on smaller or regional carriers may experience a longer wait for the feature to become available. Apple's support webpage lists major carriers such as Verizon, AT&T, T-Mobile in the United States, plus international carriers like Vodafone, Deutsche Telekom, and Orange, but users should check the page for updates as more carriers are added.
Beyond the encryption update, iOS 26.5 includes other enhancements. New wallpapers inspired by Apple's classic designs have been added, along with improvements to Apple Maps that include enhanced transit directions and more detailed landmarks in select cities. The update also includes bug fixes for the camera app and performance improvements for the Messages app overall.
To install iOS 26.5, users can go to Settings > General > Software Update on their iPhone. The update is compatible with iPhone models from the iPhone 11 series onward. Apple recommends backing up the device before installing the update, especially for those who have been on the beta release cycle.
For Android users, the encryption feature will work with any RCS client that supports the GSMA's end-to-end encryption standard. Google Messages, Samsung Messages, and other major apps have confirmed they are updating their software to be compatible. However, users on older versions of these apps may need to update their software as well.
The rollout of RCS encryption is a significant step in Apple's ongoing effort to improve cross-platform communication without compromising privacy. It also puts pressure on other messaging platforms that still lack interoperable encryption, such as WhatsApp and Signal, which already offer end-to-end encryption but within their own proprietary networks. Apple's approach, by contrast, leverages an open standard, potentially making encrypted messaging available across a wider range of apps and services.
Industry analysts have praised the move, noting that it addresses a key pain point for mixed-platform households and workplaces. Many users have long complained about the lack of security when communicating between iPhone and Android. With this update, Apple is closing that gap, though the full implementation will take time as carriers and manufacturers update their systems.
Critics point out that the gradual rollout and beta labeling mean that the feature is not yet fully baked. Some early testers on iOS 26.4 reported occasional glitches where the lock icon did not appear even on supported carriers, indicating potential synchronization delays. Apple is likely using the beta period to iron out these issues before a wider release.
Looking ahead, Apple has hinted at further enhancements to RCS in future iOS updates, including possible support for encrypted group chats, richer reactions, and improved media sharing. The company has also been working on integrating RCS with its iMessage Continuity features, allowing users to switch seamlessly between devices during an RCS conversation.
In summary, iOS 26.5 represents a pivotal moment in mobile messaging security. By adding end-to-end encryption to RCS, Apple is making it possible for billions of iPhone and Android users to communicate privately without relying on third-party apps. While the feature's gradual rollout requires patience, the foundation is now laid for a more secure and unified messaging ecosystem across platforms.
Source: 9to5Mac News