Signal Secure Backups

> alongside features that let you transfer your encrypted message history between Android, iOS, and Desktop devices.

That's actually the feature I've been looking forward to. As I moved vom Android to iOS, I lost _all_ message histories from all messenger apps that use E2EE (Signal, WhatsApp, Threema, etc). The only one that "just worked" was Telegram due to not being encrypted. WhatsApp had a migration app that has to be done when setting up the iPhone, but it failed due to some bug. Signal had backups, but they didn't seem to be compatible between different OS versions.

I've always been able to transfer history, from Android phone to Android phone, when I switched to iOS, I didn't bother since my wife was just going to start using Messages due to its encrypted nature. I really only used Signal with my wife, she only used it because I was using it and it allowed us to send images back and forth without losing quality.