Apple has rolled out the latest iOS 18.4 beta, bringing long-awaited RCS (Rich Communication Services) support to Google Fi users. Since the launch of iOS 18 in September, Google Fi subscribers have been anticipating this upgrade for improved Android-iOS messaging compatibility.
RCS Support for Google Fi Subscribers
With iOS 18.4 beta 2, Google Fi users can now access the RCS Messaging toggle in Settings > Apps > Messages. However, the activation process might take some time as it transitions.
Expansion to Other MVNOs
Beyond Google Fi, iOS 18.4 appears to extend RCS support to MVNOs (Mobile Virtual Network Operators) operating on T-Mobile’s network in the US. Previously, RCS functionality was exclusive to major US carriers AT&T, T-Mobile, and Verizon, but Apple has been progressively expanding support with successive updates.
Apple’s Official Documentation and Release Timeline
Apple maintains a support article detailing RCS messaging availability for different wireless carriers in the US and Canada. This update indicates broader carrier compatibility for iPhone users relying on MVNO services.
iOS 18.4 Stable Release Expected in April
The final stable release of iOS 18.4 is anticipated in April, following additional beta updates in the coming weeks. If you want to experience the latest improvements early, you can join the iOS beta program today.