After four public betas, the final version of apple's latest iOS 9.2 is here with a lot of bug fixes, performance and stability improvements, security fixes and some new feature. All the improvements made in earlier four beta versions are packed in it.
iOS 9.2 now supports AT&T numbersync Wi-Fi calling service, 3D Touch is improved and Safari View Controller now supports action extension from third-party apps. Some improvements in iBooks is also made. News, Music, iBooks, Mail, Browser and some other apps are also made better. Now Siri also supports arabic language. Aside form these major improvements, there is much more.