- The deprecated `--etcd-quorum-read` flag has been removed. Quorum reads are now always enabled when fetching data from etcd. Remove the `--etcd-quorum-read` flag from kube-apiserver invocations before upgrading.
- kube-controller-manager
  - The deprecated `--insecure-experimental-approve-all-kubelet-csrs-for-group` flag has been removed.
- kubelet

}

// addChild will add a child based on its hash.
// If it already exists it will not be added again.
func (e *dataUsageEntry) addChild(hash dataUsageHash) {
	if _, ok := e.Children[hash.Key()]; ok {
		return
	}
	if e.Children == nil {
		e.Children = make(dataUsageHashMap, 1)
	}
	e.Children[hash.Key()] = struct{}{}
}

// Create a clone of the entry.

- Es-image has been upgraded to Elasticsearch 6.3.2 ([#67484](https://github.com/kubernetes/kubernetes/pull/67484))
- metrics-server has been upgraded to v0.3.1. ([#68746](https://github.com/kubernetes/kubernetes/pull/68746))
- GLBC has been updated to v1.2.3 ([#66793](https://github.com/kubernetes/kubernetes/pull/66793))

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.20.14


## Downloads for v1.20.14

### Source Code

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

    /**
     * Checks the whole hash table for poor hash distribution. Takes O(n) in the worst case, O(n /
     * log n) on average.
     *
     * <p>The online hash flooding detecting in RegularSetBuilderImpl.add can detect e.g. many
     * exactly matching hash codes, which would cause construction to take O(n^2), but can't detect

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.16.12


## Downloads for v1.16.12

### Source Code

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

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.29.14


## Downloads for v1.29.14



### Source Code

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

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.19.15


## Downloads for v1.19.15

### Source Code

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

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.24.16


## Downloads for v1.24.16



### Source Code

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

    if (key == null) {
      return null;
    }
    int hash = hash(key);
    return segmentFor(hash).getEntry(key, hash);
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    if (key == null) {
      return false;
    }
    int hash = hash(key);
    return segmentFor(hash).containsKey(key, hash);
  }

  @Override