New 3D Touch shortcuts (iPhone 6S only), Night Shift Mode (64-bit devices only), Notes with password protection and Touch ID, improvements in News, improvements to the Health app, CarPlay updates for Apple Music and Apple Maps, new languages for Siri, multi-user mode for iPad in education, support for pairing multiple Apple Watches to one iPhone, Wi-fi calling for AT&T and Verizon only, major bug fixes, and improvements in speed and battery life.