UnityML 0.4 is out with some GREAT new features. The first one is the in-editor training. With UnityML <= 0.3, training an AI was not very easy. You had to make your code, then build an executable and start it using Python to begin the training. Now you can do that directly from the editor.
Unity has also added other cool new features such as learning with curiosity, a TensorflowSharp upgrade and new environments.
Can't wait to find time to try this out!