- kubeadm: now explicitly waits for `etcd` to have grown when joining a new control plane ([#72984](https://github.com/kubernetes/kubernetes/pull/72984), [@ereslibre](https://github.com/ereslibre))
- kubeadm: now pulls images when joining a new control plane instance ([#72870](https://github.com/kubernetes/kubernetes/pull/72870), [@MalloZup](https://github.com/MalloZup))

    * when updating a service or when node changes occur.
* kubectl: fixed an issue with "too old resource version" errors continuously appearing when calling `kubectl delete` ([#72825](https://github.com/kubernetes/kubernetes/pull/72825), [@liggitt](https://github.com/liggitt))

  - Services that have been set to IPFamilyPolicy = PreferDualstack will be upgraded when the service object is updated. e.g., when a user change a label.
  
  This behavior will change to:

* Updated kubernetes-worker to request new security tokens when the aws cloud provider changes the registered node name. ([#59730](https://github.com/kubernetes/kubernetes/pull/59730), [@hyperbolic2346](https://github.com/hyperbolic2346))

- Fix: remove VMSS and VMSS instances from SLB backend pool only when necessary ([#105839](https://github.com/kubernetes/kubernetes/pull/105839), [@nilo19](https://github.com/nilo19))
- Fix: skip `instance not found` when decoupling VMSSs from LB ([#105666](https://github.com/kubernetes/kubernetes/pull/105666), [@nilo19](https://github.com/nilo19))

- Fixed panic when accessing CustomResources of a CRD with `x-kubernetes-int-or-string`. ([#83787](https://github.com/kubernetes/kubernetes/pull/83787), [@sttts](https://github.com/sttts))

  cause DNS problems when DNS pods were restarted. ([#127808](https://github.com/kubernetes/kubernetes/pull/127808), [@danwinship](https://github.com/danwinship)) [SIG Network]
- Kubeadm: fix wrong member list reported when removing an etcd member ([#127962](https://github.com/kubernetes/kubernetes/pull/127962), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]

  * You can find out what taints you have in place on a node while you are still running Kubernetes 1.5 by doing `kubectl describe node <node name>`; the `Taints` section will show the taints you have in place. To see the taints that were created under 1.5 when you are running 1.6, do `kubectl get node <node name> -o yaml` and look for the "Annotation"...

* fix race condition issue when detaching azure disk ([#60183](https://github.com/kubernetes/kubernetes/pull/60183), [@andyzhangx](https://github.com/andyzhangx))
* Get parent dir via canonical absolute path when trying to judge mount-point ([#58433](https://github.com/kubernetes/kubernetes/pull/58433), [@yue9944882](https://github.com/yue9944882))

- kubeadm: Promoted the feature gate `ControlPlaneKubeletLocalMode` to Beta. By default, kubeadm will use the local kube-apiserver endpoint for the kubelet when creating a cluster with `kubeadm init` or when joining control plane nodes...