*   Add `tf.math.cumulative_logsumexp operation`.
*   Add `tf.ragged.stack`.
*   Fix memory allocation problem when calling `AddNewInputConstantTensor`.
*   Delegate application failure leaves interpreter in valid state.
*   Add check for correct memory alignment to
    `MemoryAllocation::MemoryAllocation()`.
*   Extracts `NNAPIDelegateKernel` from nnapi_delegate.cc