We always have had it... it was only the iCloud Backups that didn't. The theory was:
Bad guy deletes his phone or throw it in the sea
iCloud Backups could be accessed by the police etc.
maybe i'm misunderstanding it but it says on apples website that photos is only end to end encrypted if you have advanced date other wise its just in transit and on server.
Photos | In transit and on server | Apple | End-to-end | Trusted devices |
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