Similarly, Google Translate's millions of lines of hand-rolled code has been entirely superseded by LLMs that do a vastly better job.
The LLM-based AI assistants are based on a wildly different technology stack with very different capabilities compared to the legacy "if-then-else" logic programming that Siri was based on.
Honestly a lot of us who worked in the translation sector remember NMT as being a huge step up and in some language-pairs even surpassing DeepL at the time.
https://en.wikipedia.org/wiki/Google_Neural_Machine_Translat...