Apple today released iOS 9.1 to the public, marking the first major update to the iOS 9 operating system that launched in September. In testing since before iOS 9 was even released, iOS 9.1 was beta tested for more than a month before its launch, with developers and public beta testers receiving five betas in total.

Today's iOS 9.1 update is available as an over-the-air update to all iOS 9 users. It is the third update to iOS 9 so far, with Apple having previously released iOS 9.0.1 and iOS 9.0.2. Apple has also released Xcode 7.1 and the tvOS golden master (GM), which represents the final version of the software that will be available when the new Apple TV launches next week.

iOS 9.1 has a limited number of outward facing changes. It includes support for Unicode 7 and 8, introducing a range of new emoji like taco, burrito, cheese wedge, middle finger, champagne bottle, unicorn head, and more.

A selection of the new emoji in iOS 9.1, via Emojipedia

iOS 9.1 includes an update for Live Photos, which now sense when the iPhone is raised or lowered to refrain from recording unnecessary movements. The update also introduces a new Messages option in the Settings app that is designed to allow users to disable photos for contacts, and it brings Apple News to the UK and Australia for the first time.

This release includes new features, improvements, and bug fixes, including: - Live Photos now intelligently senses when you raise or lower your iPhone, so that Live Photos will automatically not record these movements

- Over 150 new emoji characters with full support for Unicode 7.0 and 8.0 emojis

Aside from these changes, iOS 9.1 includes new features and compatibility updates for upcoming Apple products like the fourth-generation Apple TV and the iPad Pro The new Apple TV requires iOS 9.1 to be set up using an iOS device.

iOS 9.1 also includes bug fixes for a number of issues that iOS users have been experiencing, and as with most iOS updates, it enhances performance and introduces important security fixes.

Update: iOS 9.1 includes security updates that break the recent iOS 9 Pangu jailbreak.