Apple's Mail application is set to receive significant AI enhancements with the release of iOS 18. The upgrade, known as Project BlackPearl, will introduce several new features aimed at improving user productivity. Key features include enhanced search capabilities with better results categorization, smart reply suggestions, email summarization, tone change, and auto-sort functionalities. Siri will also receive a major upgrade. These updates are expected to bring Apple Mail closer to the functionalities offered by Gmail, providing a smoother inbox experience and making the working day easier for users.