Along with the new MacBook and more info on the different Apple Watches, Apple also released the latest iteration of iOS 8, putting it at version 8.2.
iOS 8.2 is available for download OTA (Over The Air) from your iOS device, or through iTunes on a PC or Mac.
It is noted that if you are currently jailbroken, you will not want to update to iOS 8.2 just yet as you will lose your jailbreak.
http://iphoneza.co.za/ios-8-2-released-bug-fixes-stability-improvements-download/