Have you ever had a problem with ringtones that you purchased through the iTunes Store disappearing from your device? If so, you'll want to install iOS 8.1.2, which has just become available as an over-the-air update. Just visit Settings > General > Software Update and you should see iOS 8.1.2 appear magically.
To get those ringtones back, Apple recommends visiting http://itunes.com/restore-tones from your iOS device after installing the update.
iOS 8.1.2 also includes the usual bug fixes and security content. Go ahead, knock yourself out.
Tip of the hipster fedora to Federico Viticci of MacStories.net, who was the first to tweet the update.