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After the release of the beta versions of iOS 10.2, Apple has announced the release of the final version. The update is available for all devices that have previously received iOS 10, including iPhone 5, iPod touch (sixth generation), iPad 2 mini, iPad 4 and newer models. New iOS 10.2 includes a lot of small changes, including Unicode 9.0 emojis, multiple wallpapers for the iPhone 7 and iPhone 7 Plus, a new TV app, new iMessages effects and a number of other fixes. 
Additionally, Apple also released an update to watchOS 3.1.1, which includes support for new Unicode 9.0 emojis and the possibility to choose the skin tone for some emojis. Another update for the Apple TV to tvOS 10.1. The latest firmware for the Apple TV now has a Single Sign-On, which allows to pass one-time authorization from network providers, and a new TV app that collects content from various sources and services in one place.
For iOS 10.2 update head over to Settings > General > Software Update to download and install the new update. Alternatively, you can even update via iTunes. First install iTunes, and then connect your iOS device to your PC or Mac. In iTunes select your device’s icon on the top bar, Click the Summary tab and then click Check for update. Now, click Download and update. At this point, you should follow the simple on-screen instructions to install iOS 10.2. Ensure that you have at least 50 percent battery backup, and a strong Wi-Fi connection when attempting to update. Don’t forget to backup your iOS device before you download and install the update. 
The iOS 10.2 update brings the SOS or panic button – following the government’s new mandate, the Emergency SOS option can be found in Settings -> General menu. User can personalize the SOS settings under this option, such as how many times you will have to press the Power button to make the Emergency SOS call, whether to sound a countdown for that or not, etc.
New change in this update is Unicode 9.0 emojis that represent different professions, sports, animals, and foods. More diverse characters and expressions like face palm, shrug and fingers crossed have been added. iMessage also gets the new Send With Love and Celebration full-screen effects. iPhone 7 and iPhone 7 Plus users get new wallpapers with this update. 
There is a new TV app, exclusive only to US users for now, for watching various TV shows, subscribing to premium content, and streaming it via the app. New Preserve Settings in Camera that lets you save your last mode. Now users can preserve the last mode, such as video or square, rather than the default reset to photo every time you close and open the Camera app. In last, there are several technical issues and bugs have been fixed in this update.
