Amazon’s Fire OS is a forked build of Android 4.2.2. that supports Android apps and HTML5 apps. The OS will soon be getting a major update that will include several new features for Amazon’s latest devices.
Amazon today announced the release of Fire OS 3.1, which includes new features for its Kindle Fire HD and Kindle Fire HDX devices. You can download the free update now directly from amazon.com/kindlesoftwareupdates or get it over-the-air automatically “in the coming weeks.”