Apple has released iOS 9.2.1 build number 13D15 for iPhone, iPad and iPod touch for all compatible devices. The latest update comes with bug fixes and security updates without any new feature. Earlier Apple seeded first beta of iOS 9.3 last month for authorized developer’s which comes with new feature Night Shift mode.
Full official change-log of iOS 9.2.1
This update contains security updates and bug fixes including a fix for an issue that could prevent the completion of app installation when using an MDM server.
How To Download and Install iOS 9.2.1
Take a back up of your iOS device before you go ahead to install the latest software update.
Launch the “Settings” app and go to “General” then to “Software Update”.
iOS 9.2.1 IPSW Direct Download Links
iOS 9.2.1 IPSW Direct links for iPhone
iOS 9.2.1 IPSW for iPad
iOS 9.2.1 for iPod Touch
Jailbreakers should avoid updating their devices to iOS 9.2.1.