Apple is gearing up for its most significant iPhone update yet with the upcoming launch of iOS 18, according to a report by Bloomberg's Mark Gurman. Expected to be unveiled at the Worldwide Developers Conference in June, the update is touted as one of the largest in Apple's history. The focus will be on artificial intelligence enhancements, including an improved Siri with a large language model akin to ChatGPT. This would enable the automation of complex tasks through voice commands. Apple also aims to integrate RCS, a rich text messaging feature, into its Messages app, bringing iMessage-like features to a broader audience. This feature would allow people to share high-resolution photos and show when they are typing. It would also allow people to send messages over WiFi and improve group chats.