The latest version of Unreal Engine is now available with over 90 improvements: these include major features such as functionality, stability, and usability changes to Sequencer for creating in-game cinematics, support for developing Xbox One X titles, and Spectator Screen support for the Oculus and HTC Vive.
Whether it is through games, linear media, or virtual reality, Unreal Engine 4.17 enables you to tell your own story. New tools, workflow enhancements, and performance optimizations make it easier than ever to develop and ship your project at the quality bar you expect and with the performance users demand. With new platform support and expanded feature sets, Unreal Engine delivers engaging experiences on any platform.
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Source: [H]ardOCP – Unreal Engine 4.17 Released