Illustrations based on sources detail Apple's Siri overhaul, including a new UI, a chatbot-style app, and other major iOS 27 changes, ahead of WWDC on June 8 (Mark Gurman/Bloomberg)

Mark Gurman / Bloomberg: Illustrations based on sources detail Apple's Siri overhaul, including a new UI, a chatbot-style app, and other major iOS 27 changes, ahead of WWDC on June 8 — The iPhone maker looks to stage a comeback in digital assistants and artificial intelligence. — Apple Inc.'s…