Amazon rolled out the latest version of Lumberyard, 1.20. Some of the newest features and updates in this version include updates in its asset processor, Event Bus (EBus) system, audio, animation editor, as well as a mobile integration and PhysX Force Region Component. One of the most notable features, as cited on their blog, is how asset processing time has been cut by 90%. There are also another 200 minor fixes that have been made between versions 1.18 and 1.20.
The update log can be found here, as well as the blog post from Amazon.