Start your engines, Apple has finally released iOS 7.1. While this point-release offers a handful of tweaks and bug fixes, the biggest news is undoubtedly the official CarPlay support. The phone, music, maps, and messages apps are all accessible through CarPlay, and even third-party audio apps like Downcast or Pandora can benefit from this system going forward. The update itself weighs in at a hefty 214MB, so you'll definitely want to wait until you're near a wall outlet before you tap "Update."