- kubelet now exports an `kubelet_evictions` metric that counts the number of pod evictions carried out by the kubelet to reclaim resources ([#81377](https://github.com/kubernetes/kubernetes/pull/81377), [@sjenning](https://github.com/sjenning))

### Removed metrics

	c.Assert(err, nil)
	response, err = s.client.Do(request)
	c.Assert(err, nil)
	verifyError(c, response, "SignatureDoesNotMatch", "The request signature we calculated does not match the signature you provided. Check your key and signing method.", http.StatusForbidden)
}

// This tests validate if PUT handler can successfully detect SHA256 mismatch.
func (s *TestSuiteCommon) TestSHA256Mismatch(c *check) {
	// generate a random bucket name.

## Other Notable Changes

### SIG API Machinery

	},
	ErrSignatureDoesNotMatch: {
		Code:           "SignatureDoesNotMatch",
		Description:    "The request signature we calculated does not match the signature you provided. Check your key and signing method.",
		HTTPStatusCode: http.StatusForbidden,
	},
	ErrMethodNotAllowed: {
		Code:           "MethodNotAllowed",
		Description:    "The specified method is not allowed against this resource.",

- Updated creation of `LoadBalancer` services, for there to be fewer AWS security group rules in most cases. ([#112267](https://github.com/kubernetes/kubernetes/pull/112267), [@sjenning](https://github.com/sjenning))
- Updated the system-validators library to v1.8.0 ([#112026](https://github.com/kubernetes/kubernetes/pull/112026), [@pacoxu](https://github.com/pacoxu))

  
  Multi vCenter support is deprecated as of v1.21. If you have a Kubernetes cluster spanning across multiple vCenter servers, please consider moving all k8s nodes to a single vCenter Server. vSphere CSI Driver does not support Kubernetes deployment spanning across multiple vCenter servers.
  

		AskDisks:    globalAPIConfig.getListQuorum(),
		Versioned:   true,
	}

	// Shortcut for APN/1.0 Veeam/1.0 Backup/10.0
	// It requests unique blocks with a specific prefix.
	// We skip scanning the parent directory for
	// more objects matching the prefix.
	if isVeeamClient(ctx) && strings.HasSuffix(prefix, ".blk") {
		opts.BaseDir = prefix
		opts.Transient = true
	}

		uploadTestObject(t, apiRouter, credentials, bucketName, input.objectName, input.partLengths, input.metaData, false)
	}

	// function type for creating signed requests - used to repeat
	// requests with V2 and V4 signing.
	type testSignedReqFn func(method, urlStr string, contentLength int64,
		body io.ReadSeeker, accessKey, secretKey string, metamap map[string]string) (*http.Request,
		error)

* fix azure disk list corruption issue ([#77187](https://github.com/kubernetes/kubernetes/pull/77187), [@andyzhangx](https://github.com/andyzhangx))
* Fixed scanning of failed iSCSI targets. ([#74306](https://github.com/kubernetes/kubernetes/pull/74306), [@jsafrane](https://github.com/jsafrane))

- The kube-controller-manager's deprecated `--experimental-cluster-signing-duration` flag is now removed. Adapt your machinery to use the `--cluster-signing-duration` flag that is available since v1.19. ([#108476](https://github.com/kubernetes/kubernetes/pull/108476), [@ialidzhikov](https://github.com/ialidzhikov))