• Batch norm should now work in T2T - fixed the custom variable getters
• Simplified ImageModality and removal of SmallImageModality
• Simplified ClassLabelModality and removal of ClassLabel1DModality
• New modality with CTC loss
• New vanilla_gan model that's a good example of a simple GAN
• TPU advances: Xception, Resnet50, and Transformer verified to work, code path uses Experiment, usage doc for Cloud TPU alpha customers
• Various small fixes, improvements, features