Apple iOS 8 got updated to iOS 8.1.2 with a handful of bug fixes and other improvements. Specially this update focuses on an issue where ringtones purchased through the iTunes store may have disappeared from the user devices.
Users can get this new update over the air via settings >> General >> Software update or via iTunes by connecting your iPad, iPhone, iPod to the computer or any Mac devices. Download and install the software and then follow the on screen instructions
This new update of iOS 8.1.2 comes around 28 MB for iPhone and around 25 MB for iPad. If any of your purchased ringtones were lost then follow the link given here to get it back.
Here is the list of devices which can be capable to install iOS 8.1.2 are iPhone 6, iPhone 6 plus, iPhone 5s, iPhone 5, iPhone 4s, iPad Air, iPad mini with and without retina display, iPad 2, iPad 3, iPad 4 and iPod fifth generation.