Out from its beta status which rolled out to tester just last month, the new iOS 9.2.1 update is finally hitting the mainstream and with it are as already reported that it only contains minor bug fixes and a few system improvements. The highlight for this update is the issue pertaining to apps that could fail to install using an MDM server.
As the new update is open for all supported iPhones, iPads and iPod Touch devices, your device should have notified you by now about the update. However, there would be delays in some regions and if you are all ready to have your device updated and can’t wait for automatic update to push in, you can always manually check for update by going to: Settings > General > Software Update. You can also try plugging in your device to your computer and do the update through iTunes.
As the new update goes public, Apple is also opening new doors for iOS 9.3 beta for the members of the beta program.