
Since launching in September alongside the iPhone 6s and 6s Plus, iOS 9 has seen its adoption rate grow to 66 percent of active iOS devices, according to numbers on the Apple Developer Support page. Two weeks ago, iOS 9 adoption sat at 61 percent.

Apple released the first major update to iOS 9 two weeks ago with iOS 9.1, which featured a slew of brand-new emojis. Since that update, iOS 9 adoption has grown by 5 percent. Earlier today Apple seeded the second beta for iOS 9.2, the second major update to its newest mobile operating system.
Article Link: iOS 9 Adoption Jumps to 66 Percent After iOS 9.1 Emoji Update