Apple’s iOS 26.3 Beta 2 introduces carrier bundle settings that signal end-to-end encryption (E2EE) for RCS messages is nearing rollout, starting with four French carriers. Discovered by tipster Tiino-X83, these configurations align with GSMA Universal Profile 3.0 standards, upgrading from Apple’s current UP 2.4 implementation. While not yet active, this lays groundwork for secure, encrypted RCS chats rivaling Google Messages.
New RCS E2EE Code Spotted
The beta references E2EE toggles in settings files for Bouygues, Orange, SFR, and Free in France—no other global carriers show these yet. When enabled (“true”), iPhones will attempt encrypted handshakes with compatible devices, displaying “RCS Chat” in the text field and a lock icon near the send button or status bar. Beta testers can grab iOS 26.3 Beta 2 via Settings > General > Software Update.
Rollout Timeline and Caveats
Stable iOS 26.3 may arrive by late January 2026, though E2EE might debut later in a future update like iOS 26.4 alongside revamped Siri features. This follows Apple’s RCS adoption last year, now enhancing privacy to match iMessage’s security.
Broader iOS 26 Implications
Post-iOS 26.3, expect iOS 26.4 Beta 1 with Personal Siri and LLM upgrades for contextual, cross-app intelligence. Amid Galaxy S26 launches and foldable iPhone rumors, RCS E2EE strengthens iMessage alternatives, reducing green bubble stigma while prioritizing end-to-end security across carriers.