On September 16, Apple released the latest version of their popular mobile operating system, iOS 14, which is installed on over 1.4 billion devices worldwide. Although we published a quick post about what to expect in iOS 14-and announced testing support for it the day after its release-we wanted to dig a little deeper into what iOS 14 means for email marketers. Beyond just rendering, there is a major update that could change the way people think about audiences on Apple's devices.