بسم الله الرحمن الرحيم
iOS 7 Released For The iPhone, iPod and iPad
As promised, Apple just released the iOS 7 update to the iPhone, iPod and iPad which is the biggest update to the OS since the launch of the OS.
You can update either through the iDevice its self by going in to the settings and going to General then software update to grab the update OTA (Over The Air) which requires a solid internet connection, 3GB of free space as well as the iDevice being charged at least 50% or you can just update through iTunes.
As always make sure you take full backup of your iDevice either through iCloud or through iTunes.