As promised, Apple released iOS 8 as a free upgrade on Wednesday, two days ahead of the iPhone 6 and iPhone 6 Plus launch. iOS 8 adds new features such as Notification widgets, Health fitness tracking, support for third-party keyboards, and more.
iOS 8 for the iPhone, iPad, and iPod touch is available for download now
If you plan on upgrading to iOS 8 you need to make sure your device is compatible, and you need to back up your device, too. iOS 8 is compatible with the iPhone 4s or newer, iPad 2 or newer, and the fifth generation iPod touch.
The Mac Observer has a handy guide with what you need to know before upgrading to iOS 8. Spoiler: Backup, backup, backup.
You can find the iOS 8 update by tapping settings on your iPhone, iPad, or iPod touch, and then tap General. Now tap Software Update. If the update is available, you'll see an option to start the installation process.