- Kube-aggregator: renames aggregator_unavailable_apiservice_count metric to aggregator_unavailable_apiservice_total ([#88156](https://github.com/kubernetes/kubernetes/pull/88156), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery]

        APIs will be removed as well.
    *   `tf.keras.callbacks.experimental.BackupAndRestore` is now available as
        `tf.keras.callbacks.BackupAndRestore`. The experimental endpoint is
        deprecated and will be removed in a future release.
    *   `tf.keras.experimental.SidecarEvaluator` is now available as
        `tf.keras.utils.SidecarEvaluator`. The experimental endpoint is

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