The update is available on all eligible devices over-the-air in the Settings app. To access the update, go to Settings –> General –> Software Update. Eligible devices include the iPhone 5s and later, the iPad mini 2 and later, the iPad Air and later, and the 6th-generation iPod touch.
Along with these major features, iOS 11 introduces a fix for a Reachability bug that’s been present since the release of iOS 11 and it brings back the popular 3D Touch App Switcher gesture that lets iPhone users perform a 3D Touch gesture at the left edge of the display to bring up the multitasking App Switcher interface.
The built-in keyboard in iOS 11.1 now offers up multiple emoji symbols when using an emoji-related word, there’s a new camera icon under Restrictions, a new animation when tapping the status bar to scroll upwards, and a faster unlock animation.
There are also many bug fixes and security improvements in iOS 11.1. Most notably, the update addresses a major vulnerability in the WPA2 Wi-Fi standard that is used to protect many modern Wi-Fi networks.
