At his final WWDC keynote, Tim Cook highlights AI-forward upgrade to the voice assistant to be widely released in fall At his final WWDC keynote, Tim Cook highlights AI-forward upgrade to the voice assistant to be widely released in fall After years of anticipation, user frustration and false starts, Apple announced a major upgrade to Siri at its annual developer conference on Monday. The voice assistant will come integrated with Apple’s artificial intelligence tool, Apple Intelligence, and has