This release also contains a number of bug fixes to the feature set. Aspiring plugin authors can look at [sample-exec-plugin](https://github.com/ankeesler/sample-exec-plugin) as a way to get started.

  - `priority_level_seat_count_samples` is replaced with `priority_level_seat_utilization`, which samples every nanosecond rather than every millisecond; the old metric conveyed utilization despite its name.
  - `priority_level_seat_count_watermarks` is removed.
  - `priority_level_request_count_samples` is replaced with `priority_level_request_utilization`, which samples every nanosecond rather than every millisecond; the old metric conveyed utilization despite its name.

### SIG Storage

[SIG Storage][] is responsible for storage and volume plugin components.

For the 1.8 release, SIG Storage extended the Kubernetes storage API. In addition to providing simple
volume availability, the API now enables volume resizing and snapshotting. These features are in alpha.
The SIG also focused on providing more control over storage: the ability to set requests and

   * rate, and ability to be implemented with O(1) time complexity. The initial LRU implementation
   * operates per-segment rather than globally for increased implementation simplicity. We expect
   * the cache hit rate to be similar to that of a global LRU algorithm.
   */

  // Constants

  /**
   * The maximum capacity, used if a higher value is implicitly specified by either of the

                    || status == NtStatus.NT_STATUS_BAD_NETWORK_NAME;
        }
        return false;
    }

    /**
     * Simple connection retry logic - could be enhanced with exponential backoff
     */
    private boolean shouldRetryConnection() {
        // For now, allow one retry. Could be enhanced with more sophisticated logic.

    /** The key of the message: Search */
    public static final String LABELS_SEARCH = "{labels.search}";

    /** The key of the message: Showing similar results. */
    public static final String LABELS_similar_doc_result_status = "{labels.similar_doc_result_status}";

- github.com/willf/bitset: [d5bec33](https://github.com/willf/bitset/tree/d5bec33)
- gopkg.in/ini.v1: v1.51.0
- gopkg.in/yaml.v3: 9f266ea
- rsc.io/quote/v3: v3.1.0
- rsc.io/sampler: v1.3.0

### Changed
- cloud.google.com/go/bigquery: v1.0.1 → v1.4.0
- cloud.google.com/go/datastore: v1.0.0 → v1.1.0
- cloud.google.com/go/pubsub: v1.0.1 → v1.2.0

- Bump addon-resizer to 1.8.7 to fix issues with using deprecated extensions APIs ([#85864](https://github.com/kubernetes/kubernetes/pull/85864), [@liggitt](https://github.com/liggitt))

CSI was first introduction as alpha in Kubernetes v1.9 and moved to beta in Kubernetes v1.10.

You can find a list of sample and production drivers in the [CSI Documentation](https://kubernetes.io/docs/concepts/storage/volumes/#csi).

- github.com/gorilla/context: [v1.1.1](https://github.com/gorilla/context/tree/v1.1.1)
- github.com/kr/pty: [v1.1.5](https://github.com/kr/pty/tree/v1.1.5)
- rsc.io/quote/v3: v3.1.0
- rsc.io/sampler: v1.3.0
- sigs.k8s.io/kustomize: v2.0.3+incompatible



# v1.21.0-rc.0


## Downloads for v1.21.0-rc.0

### Source Code

filename | sha512 hash
-------- | -----------