Apple has released iOS 7.1, which adds, among other things, support for CarPlay, an automobile-oriented interface gives iDevice users a way to make calls, use Maps, listen to music and access messages with just a word or a touch.
You can also now control how long Siri listens to you. There are also improvements to Touch ID fingerprint recognition, bug fixes, and more.
To download the update, go to Settings on your iDevice. Select General and tap Software Update.