WhatsApp has had a leak revealing a huge upgrade coming for iPhone users. The first upgrade for iPhone users is the soon release of cue passkeys. These link WhatsApp accounts to a device’s biometric or PIN security, rather than relying on SMS codes. The further away upgrade for iPhone users is to collate non WhatsApp messages into a separate section of the app. This offers the prospect of a unified messaging hub of sorts, and if there’s any way to deliver cross-app, end-to-end encryption, even if limited in practice, then it will change the industry.