92% of iPhones released in last four years now on iOS 13

Apple has released new iOS adoption statistics that indicate iOS 13, the current update, is now installed on 92 percent of all iPhones introduced in the last four years. Seven percent of iPhones released in the last four years run iOS 12 and 2 percent run an earlier version of iOS. Among all iPhones, including those that were released more than four years ago, 81 percent of devices have iOS 13 installed.