I have various older iOS devices running variants of their launch iOS versions, but one device, an iPod Touch 5 running on iOS 6.1.3, still sees use as a music player every day. The battery lasts surprisingly long because of that, even though the iPod is quickly approaching 6 years of age. What about you? Are you still holding on to iOS 6? What is your main reason for sticking with it in 2018?