Numbers for iCloud beta: iOS software version
This article has been archived and is no longer updated by Apple.
iOS is the mobile operating system for the iPhone, iPad, and iPod touch. For best performance, it’s a good idea to update all iOS software on your iPhone, iPad, or iPod touch to the latest versions.
Determine which iOS software your device uses: Tap Settings > General > About > Version.
Update the iOS: Connect your device to your computer and install the latest iOS using iTunes.
Install future updates from your device: Tap Settings > General > Software Update.
Last Modified: Sep 2, 2015