SAN FRANCISCO, January 16, 2026, 09:23 PST
- Apple’s iOS 26.3 beta introduces updated carrier settings linked to end-to-end encryption for RCS messaging.
- Reports indicate the references are restricted to a few French carriers and have yet to become active.
- Apple announced plans to enable encrypted RCS support in an upcoming software update.
Apple’s iOS 26.3 beta reveals a new carrier-specific setting hinting at end-to-end encryption for RCS messages — the updated SMS standard that many iPhone-to-Android texts rely on, according to a report analyzing the beta files. The code apparently enables this feature for just four French carriers, and it’s currently disabled. 1
The timing is crucial since RCS now serves as the default messaging option for iPhone users texting Android devices without switching apps. Yet, these RCS conversations on iPhones still don’t offer end-to-end encryption, creating a vulnerability for anyone who equates “modern messaging” with privacy. 2
RCS, or Rich Communication Services, aims to supplant SMS and MMS by adding features such as typing indicators and improved photo and video sharing. With end-to-end encryption, message content stays private between sender and receiver—even across different carrier networks.
The new setting appears within “carrier bundles,” those configuration files linked to mobile operators. This hints that the feature’s activation might rely on carriers choosing when, where, and how to enable it, rather than Apple toggling a global switch.
On January 12, Apple rolled out iOS 26.3 beta 2 for developers, tagged with build 23D5103d, visible now on its software releases page. 3
Apple’s security releases page confirms that iOS 26.2 is still the most recent version available to the majority of iPhone users. 4
Apple has linked its commitment to encrypted RCS to a wider industry effort. In March 2025, Apple spokesperson Shane Bauer announced that Apple would “add support for end-to-end encrypted RCS messages” in upcoming updates. Google’s spokesperson Ed Fernandez added that the company would “work as quickly as possible” to facilitate the rollout of the standard throughout the ecosystem. 5
The GSMA, which oversees the RCS Universal Profile specification, described the encryption upgrade as fundamental. Tom Van Pelt, the GSMA’s technical director, referred to it as “the cornerstone of the new RCS Universal Profile release,” according to a report by telecoms.com. 6
However, the approach carries clear risks and uncertainties. Relying on carriers to switch on the feature might drag out rollouts, cause patchy coverage across countries, and confuse users about which chats are truly secure. Apple may also delay the feature’s release if testing uncovers issues or carrier support falls behind.
This shift puts the company in a packed messaging space, where competitors tout privacy as a key selling point. WhatsApp from Meta and Signal both provide end-to-end encryption on multiple platforms, making them the go-to options for many when handling confidential chats.
Even a partial move toward encrypted RCS would address a persistent gap in iPhone-to-Android messaging. The next hints will probably emerge through carrier updates and future iOS 26.3 test releases, rather than the inactive toggle found in the current beta.
