[vrv]

Thank you for your work on putting Keras on top!

To answer your questions:

- We don't (yet) have a tensor contraction op -- just a matter of getting some dev time to call the existing Eigen contraction code in an op. Hopefully in the next release!

- More casting between types I think is in this release.

- dynamic RNNs is not yet in this one, but also in our sights.

And with all of that, we still need to work on better performance, memory efficiency. Still lots to do!