- Mark Job onPodConditions as optional in pod failure policy ([#120210](https://github.com/kubernetes/kubernetes/pull/120210), [@mimowo](https://github.com/mimowo)) [SIG API Machinery and Apps]

### Feature

  * Mark all static pods on the Master node as critical to prevent preemption ([#47356](https://github.com/kubernetes/kubernetes/pull/47356), [@dashpole](https://github.com/dashpole))

* Convert `latency`/`latencies` in metrics name to `duration`. ([#74418](https://github.com/kubernetes/kubernetes/pull/74418), [@danielqsj](https://github.com/danielqsj))
    * The following metrics are changed and mark previous metrics as deprecated:
        * `rest_client_request_latency_seconds` -> `rest_client_request_duration_seconds`
        * `apiserver_proxy_tunnel_sync_latency_secs` -> `apiserver_proxy_tunnel_sync_duration_seconds`

- Mark the onPodConditions field as optional in Job's pod failure policy. ([#120204](https://github.com/kubernetes/kubernetes/pull/120204), [@mimowo](https://github.com/mimowo)) [SIG API Machinery and Apps]