- Massive overhaul of the Keras backend, moving away from the model extension
pattern and toward low-level functions for implementing the training/testing/
evaluation loops.
- Rewrote the model assembly code to be more flexible.
- Added new loss functions: CTC
- Added new optimizer: RMSProp
- Added new derived sources
- Added several new layers: recurrent, pooling, assertion, output, batch
normalization, transpose.
- Better packaging for remote datasets.
- Added audio processing tools and a speech recognition example.
- By default, models block while compiling, so the user doesn't see a hanging
"Epoch 1/X" prompt.
- Added support for shape tracking in the model.
- Updating documentation.
- Eliminated several dependencies.
- Improved unit tests and coverage.