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Here are descriptions of the more relevant changes in

Brand
brand suitelong

End-to-end security in messages

This version fully integrates endEnd-to-end security model, that was available only for secure calls: secure messages are now fully is supported for ZRTP calls. This major version adds end-to-end encrypted.security also to secure messages.

Every client has an asymmetric keypair used to encrypt/decrypt messages via NaCl box model. 

Read notification

Users can receive a read-notification, knowing whether and when their secure message has been read. Feature can be enable in application settings or via provisioning profile by system administrator

This version carries a User Interface redesign of clients and server, plus many new devices and OS version support.

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