With the release of all betas version of iOS 9.2, Apple has finally released  iOS 9.2  (build number: 13C75) software update for iPhone, iPad and iPod touch.
With the release of all betas version of iOS 9.2, Apple has finally released  iOS 9.2 
(build number: 13C75) software update for iPhone, iPad and iPod touch.
This iOS 9.2 includes several features, bug fixes and
changes, including apple music enhancements, edge swipe-to-dismiss for Safari
View Controller. iOS 9.2 enables Wi-Fi Calling for AT&T users

via their Mac or iPad to make & receive calls & also includes support
for Arabic in Siri.

The devices which are compatible with iOS 9.2 :
  • iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone 5s, iPhone
    5c, iPhone 5, iPhone 4S
  • iPad Air 2, iPad Air, iPad 4, iPad mini, iPad 3, iPad 2
  • iPad mini 3, Retina iPad mini (iPad mini 2), iPad mini
  • 6th & 5th generation iPod touch

Note: Jailbroken user should avoid upgrading their device to iOS 9.2 as  this iOS 9.2 have no jailbreak yet & you
may lose the jailbreak too.

But If you don’t care about jailbreaking, then you can directly install
iOS 9.2 via OTA by heading over to Settings > General > Software
Update
.
If you want to update via iTunes rather that update via OTA , then you
can download the appropriate iOS 9.2 IPSW file for your device from our
Download page.  
See what’s features in iOS 9.2

How to install iOS 9.2 update for iPhone, iPad & iPod touch

If you’ve found any other new features or changes
in iOS 9.2 beta 4, please let us know in the comments.