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* Connections from Pods to Services with 0 endpoints will now ICMP reject immediately, rather than blackhole and timeout. ([#72534](https://github.com/kubernetes/kubernetes/pull/72534), [@thockin](https://github.com/thockin))
* Services of type=LoadBalancer which have no endpoints will now immediately ICMP reject connections, rather than time out. ([#74394](https://github.com/kubernetes/kubernetes/pull/74394), [@thockin](https://github.com/thockin))

- Fixes kubectl apply/prune in namespace other than default. ([#90016](https://github.com/kubernetes/kubernetes/pull/90016), [@seans3](https://github.com/seans3)) [SIG CLI and Testing]

  Depending on the value returned from QueueingHintFn, the scheduling queue changes how it queues each Pod:
  - if more than one QueueingHintFn returns QueueImmediately, it queues Pod to activeQ.
  - If no QueueingHintFn returns QueueImmediately and more than one plugin returns QueueAfterBackoff, it queues Pod to backoffQ if Pod is backing off, or to activeQ if Pod's backoff has already finished.

- Fixes kubectl apply/prune in namespace other than default. ([#90024](https://github.com/kubernetes/kubernetes/pull/90024), [@seans3](https://github.com/seans3)) [SIG CLI and Testing]

* Addon manager supports HA masters. ([#55782](https://github.com/kubernetes/kubernetes/pull/55782), [@x13n](https://github.com/x13n))

- `kubeadm`: will now allow deploying a kubelet that is 3 versions older than the version of `kubeadm` (N-3). This aligns with the recent change made by SIG Architecture that extends the support skew between the control plane and kubelets. Tolerate this new kubelet skew for the commands `init`, `join` and `upgrade`. Note that if the `kubeadm` user applies a control plane version that is older than the `kubeadm` version (N-1 maximum) then the skew between the kubelet and control plane...

* Fix public IP not found issues for VMSS nodes ([#80703](https://github.com/kubernetes/kubernetes/pull/80703), [@feiskyer](https://github.com/feiskyer))
* Fix a conformance test that was skipped when client had a newer micro version than server. ([#80598](https://github.com/kubernetes/kubernetes/pull/80598), [@smarterclayton](https://github.com/smarterclayton))

* Fix security holes in GCE metadata proxy. ([#51302](https://github.com/kubernetes/kubernetes/pull/51302), [@ihmccreery](https://github.com/ihmccreery))
* Fixed an issue looking up cronjobs when they existed in more than one API version ([#52227](https://github.com/kubernetes/kubernetes/pull/52227), [@liggitt](https://github.com/liggitt))

* Back porting critical vSphere bug fixes to release 1.3 ([#31993](https://github.com/kubernetes/kubernetes/pull/31993), [@dagnello](https://github.com/dagnello))
* Back port - Openstack provider allowing more than one service port for lbaas v2 ([#32001](https://github.com/kubernetes/kubernetes/pull/32001), [@dagnello](https://github.com/dagnello))