for _, user := range q.Users {
			lookupRes, actualGroups, _ := sys.LDAPConfig.GetValidatedDNWithGroups(user)
			if lookupRes != nil {
				groupSet := set.CreateStringSet(actualGroups...)

				// duplicates can be overwritten, fetched groups should be identical.
				cleanQ.Users[lookupRes.NormDN] = groupSet
			}
			// Search for non-normalized DN as well for backward compatibility.
			if _, ok := cleanQ.Users[user]; !ok {

*   RBAC ClusterRoles can now select other roles to aggregate. ([#54005](https://github.com/kubernetes/kubernetes/pull/54005),[ @deads2k](https://github.com/deads2k))
*   Fixed an issue with RBAC reconciliation that caused duplicated subjects in some bootstrapped RoleBinding objects on each restart of the API server. ([#53239](https://github.com/kubernetes/kubernetes/pull/53239),[ @enj](https://github.com/enj))

#### **Other**

"getById","getElementsByName","disconnectedMatch","cssHas","querySelector","filter","attrId","getAttributeNode","tag","className","input","innerHTML","compare","sortDetached","expr","elements","matchesSelector","attr","attrHandle","uniqueSort","duplicates","sortStable","createPseudo","relative",">"," ","+","~","preFilter","excess","unquoted","nodeNameSelector","expectedNodeName","pattern","operator","check","result","what","_argument","simple","forward","ofType","_context","xml","outerCache","no...

* kubectl and client-go now detect duplicated names for user, cluster and context when loading kubeconfig and report this condition as an error.  ([#60464](https://github.com/kubernetes/kubernetes/pull/60464), [@roycaihw](https://github.com/roycaihw))

Unfortunately, there is a much rarer second possible failure mode: the replication controller gets renamed to the old name, but there is a duplicated set of pods in the cluster. kubectl will not report an error since it thinks its job is done.

* [fluentd-gcp addon] Update Stackdriver plugin to version 0.6.7 ([#52565](https://github.com/kubernetes/kubernetes/pull/52565), [@crassirostris](https://github.com/crassirostris))
* Fixes an issue with RBAC reconciliation that could cause duplicated subjects in some bootstrapped rolebindings on each restart of the API server. ([#53239](https://github.com/kubernetes/kubernetes/pull/53239), [@enj](https://github.com/enj))

- Kubeadm: fixed the bug that `kubeadm certs generate-csr` command does not remove duplicated SANs ([#107982](https://github.com/kubernetes/kubernetes/pull/107982), [@SataQiu](https://github.com/SataQiu))

* Made multi-scheduler graduated to Beta and then v1. ([#38871](https://github.com/kubernetes/kubernetes/pull/38871), [@k82cn](https://github.com/k82cn))
* Fixed forming resolver search line for pods: exclude duplicates, obey libc limitations, logging and eventing appropriately. ([#29666](https://github.com/kubernetes/kubernetes/pull/29666), [@vefimova](https://github.com/vefimova))

* Fixes an issue with RBAC reconciliation that could cause duplicated subjects in some bootstrapped rolebindings on each restart of the API server. ([#53239](https://github.com/kubernetes/kubernetes/pull/53239), [@enj](https://github.com/enj))

- Fixed a regression in default configurations, which enabled PodDisruptionConditions by default, 
  that prevented the control plane's pod garbage collector from deleting pods that contained duplicated field keys (env. variables with repeated keys or container ports). ([#121380](https://github.com/kubernetes/kubernetes/pull/121380), [@mimowo](https://github.com/mimowo)) [SIG Apps, Auth, Scheduling and Testing]