Testing on the iOS 26.4 update is continuing, and Apple released the second beta today. The main new feature is an expansion of RCS encryption testing, but there are a few other small tweaks.

End-to-End Encryption RCS Testing
With the second beta of iOS 26.4, Apple is testing end-to-end encryption for text messages sent between iPhones and Android devices.


End-to-end encrypted messages can now be sent to an Android user, and if encryption is enabled, there will be a lock icon on the message. Encrypted…

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