Apple unveiled iOS 10, the next-generation operating system for the iPhone, iPad, and iPod touch, on June 13, 2016, releasing it to the public exactly three months later on September 13. According to Apple CEO Tim Cook, iOS 10 is the "biggest release ever" for iOS users, with major updates for a wide variety of apps, services, and features, including Messages, Siri, Photos, Maps, Apple Music, News, Apple Pay, Control Center, and more.iOS 10 features a redesigned Lock screen with 3D-touch enabled notifications that offer up more information, a more easily accessible camera, and a new widgets screen that houses widgets formerly located in the Today section of the Notification Center. There's a redesigned Control Center, also with support for 3D Touch, and a new Raise to Wake feature wakes up the screen without bypassing notifications. Siri can do a lot more in iOS 10, thanks to a Siri SDK that allows developers to build Siri support into their apps. You can now ask Siri to do things like summon an Uber or send a message in WhatsApp. Messages has been overhauled with new features like background animations, bubble effects, rich links, and Digital Touch, the sketching feature first introduced on the Apple Watch, allowing users to create drawings and annotate photos and videos. Handwritten notes, hidden "invisible ink" messages, quick "Tapback" replies, and bigger emoji are new in Messages, and there's even a predictive emoji feature that suggests words that can be replaced with emoji.