*   <THIS SECTION SHOULD CONTAIN API, ABI AND BEHAVIORAL BREAKING CHANGES>

*   `tf.summary.trace_on` now takes a `profiler_outdir` argument. This must be
    set if `profiler` arg is set to `True`.

    *   `tf.summary.trace_export`'s `profiler_outdir` arg is now a no-op.
        Enabling the profiler now requires setting `profiler_outdir` in
        `trace_on`.

*   `tf.estimator`

    *   The tf.estimator API is removed.

    singular: proxyconfig
  scope: Namespaced
  versions:
  - name: v1beta1
    schema:
      openAPIV3Schema:
        properties:
          spec:
            description: 'Provides configuration for individual workloads. See more
              details at: https://istio.io/docs/reference/config/networking/proxy-config.html'
            properties:
              concurrency: