First, I should outline the key features of the new version. The user mentioned "FlashPrint 4.6.4 new download," so I need to find out what's new in this update. Maybe check Creality's official website or forums. Since I can't access external sources, I'll rely on common knowledge and typical features in updates. Common updates might include performance improvements, bug fixes, new printing options, user interface enhancements, or compatibility with new hardware.