* federation: Adding support for DeleteOptions.OrphanDependents for federated secrets. Setting it to false while deleting a federated secret also deletes the corresponding secrets from all registered clusters. ([#36296](https://github.com/kubernetes/kubernetes/pull/36296), [@nikhiljindal](https://github.com/nikhiljindal))

```
kubectl --namespace=federation get secret federation-apiserver-secret -o json | sed 's/federation-apiserver-secret/federation-apiserver-kubeconfig/g' | kubectl create -f -
# optionally, remove the old secret
kubectl delete secret --namespace=federation federation-apiserver-secret
```

- Fixed an issue to ignore unnecessary node events and improve daemonset controller performance. ([#121669](https://github.com/kubernetes/kubernetes/pull/121669), [@xigang](https://github.com/xigang))