Apple today seeded the third beta of iOS 9.1 to registered developers for testing purposes



From MacRumors:

iOS 9.1 includes new features for the iPad Pro, adding support for accessories like the Smart Keyboard and the Apple Pencil, both of which are deeply integrated into the operating system. It also includes features that will allow the iPhone to interact with the new Apple TV. iOS 9.1 also includes Unicode 8, adding support for emoji like the taco, burrito, cheese wedge, middle finger, unicorn head, and more, plus it includes a new "Hey Siri" Settings feature that lets the "Hey Siri" command be customized for an individual user's voice. On-demand voice activation even when not plugged into a power source using the "Hey Siri" command is a new feature in the iPhone 6s and the iPhone 6s Plus.

  Apple Seeds Third iOS 9.1 Beta to Developers