The iOS 11 is now installed on 59 percent of iOS devices, according to new statistics that was shared this week on its App Store support page for developers. That is up from 52 percent on Nov 6, indicates that iOS 11 adoption has grown just 7 percentage points over the course of the last month.
While 33 percent of iPhones, iPads, and iPod touch devices continues to run iOS 10, as 8 percent of devices run a version of iOS earlier than iOS 10. The adoption rate for iOS 11 adoption is slower than iOS 10 adoption. Based on Apple's official App Store numbers, iOS 10 was installed on 54 percent of devices in October of 2016.
Via MacRumors