Core Points - WeChat announced three new features aimed at enhancing user experience and improving functionality [1][2][4] Group 1: New Features - The first feature allows users to retract all messages sent in a single operation, simplifying the process of retracting multiple messages, especially in professional settings [1] - The second feature upgrades the group chat "Do Not Disturb" mode, enabling users to selectively receive important notifications while ignoring irrelevant @everyone messages, thus reducing distractions [2] - The third feature introduces an option to delete contacts while simultaneously clearing chat history, providing users with more control over their data [4]