Amazon has released Fire OS 3.1, a free software update for the new Kindle Fire HD and Kindle Fire HDX. The over-the-air update will be delivered automatically in the coming weeks, users can also visit Amazon to download and install the update.

Fire OS 3.1 brings integration with Goodreads, a global community of book lovers, and lets users capture and share favorite quotes with Goodreads friends from inside the book, among other things.

Second Screen turns a TV into the primary screen and frees up the Fire HDX to provide playback controls, a customized display for X-Ray, or simply a place to email, or browse the web. Second Screen is available for PlayStation 3 and Samsung TVs, and will be available starting later this year for PlayStation 4.

Fire OS 3.1 also adds enterprise support, and gives users the ability to connect to secure enterprise Wi-Fi networks and access corporate apps, documents and resources like SharePoint; native VPN client for instant access to corporate networks; and a native SCEP (Simple Certificate Exchange Protocol) client to retrieve digital certificates for secure resources. Fire OS also supports Kerberos authentication now, which enables the ability to browse secure Intranet websites from the Silk browser.

Additional new features of Fire OS 3.1 include cloud collections, helping users organize their reading material and apps in customized collections, and Amazon’s Whispersync technology synchronizes the collections across Kindle devices. The Fire OS 3.1 also comes with voice dictation, that converts speech to text—available in all languages when online. Wireless printing capabilities of photos, PDF, e-mails, contacts, calendar and docs are also added.

Fire OS 3.1 is available on the new generation of Kindle tablets, including the $139 Kindle Fire HD, the 7” Kindle Fire HDX, and the 8.9” Kindle Fire HDX.

[Image courtesy: Amazon]