TensorFlow Federated 0.49.0

Release 0.49.0

Major Features and Improvements

• Created the Baselines API of the GLDv2 (landmark) dataset for simulation,
  with a GLDv2 preprocessing function, a GLDv2 tasks function, and a Google
  mirror of the GLDv2 baselines tasks.

Breaking Changes

• Temporarily removed tff.program.PrefetchingDataSource, the
  PrefetchingDataSourceIterator tests are flaky and it's not immediately clear
  if this is due to the implementation of the PrefetchingDataSourceIterator or
  due to a bug in the test.
• Deprecated the following API, Python execution is deprecated instead use CPP
  execution:
  • tff.backends.native.create_local_python_execution_context
  • tff.backends.native.create_remote_python_execution_context
  • tff.backends.native.create_remote_async_python_execution_context
  • tff.backends.native.set_remote_async_python_execution_context
• Removed the following API, Python execution is deprecated instead use CPP
  execution:
  • tff.backends.native.set_local_python_execution_context
  • tff.backends.native.set_remote_python_execution_context
  • tff.frameowrk.FederatingExecutor
  • tff.framework.ComposingExecutorFactory
  • tff.framework.ExecutorValue
  • tff.framework.Executor
  • tff.framework.FederatedComposingStrategy
  • tff.framework.FederatedResolvingStrategy
  • tff.framework.FederatingStrategy
  • tff.framework.ReconstructOnChangeExecutorFactory
  • tff.framework.ReferenceResolvingExecutor
  • tff.framework.RemoteExecutor
  • tff.framework.ResourceManagingExecutorFactory
  • tff.framework.ThreadDelegatingExecutor
  • tff.framework.TransformingExecutor
  • tff.framework.UnplacedExecutorFactory
• Removed duplicate API from tff.framework, instead use:
  • tff.types.type_from_tensors
  • tff.types.type_to_tf_tensor_specs
  • tff.types.deserialize_type
  • tff.types.serialize_type
• Renamed tff.learning.Model to tff.learning.models.VariableModel.
• Renamed the
  cpp_execution_context.(create|set)_local_async_cpp_execution_context
  function to match the name of
  execution_context.(create|set)_(sync|async)_local_cpp_execution_context.

Bug Fixes

• Fixed bug in FLAIR download URLs.
• Enabled and fixed python type annotations in many packages.