- Kube-proxy, will restart in case it detects that the Node assigned pod.Spec.PodCIDRs have changed ([#113258](https://github.com/kubernetes/kubernetes/pull/113258), [@code-elinka](https://github.com/code-elinka)) [SIG Network]

- Fix bug in the port allocation logic that caused that the NodePort creation with statically assigned portNumber collide in multi-master HA cluster ([#89937](https://github.com/kubernetes/kubernetes/pull/89937), [@aojea](https://github.com/aojea)) [SIG Network and Testing]

- Fix handling of aws-load-balancer-security-groups annotation. Security-Groups assigned with this annotation are no longer modified by kubernetes which is the expected behaviour of most users. Also no unnecessary Security-Groups are created anymore if this annotation is used. ([#88690](https://github.com/kubernetes/kubernetes/pull/88690),...

- Kube-proxy, will restart in case it detects that the Node assigned pod.Spec.PodCIDRs have changed ([#113247](https://github.com/kubernetes/kubernetes/pull/113247), [@code-elinka](https://github.com/code-elinka)) [SIG Cloud Provider, Network and Storage]

A security issue was discovered in Kubernetes that could allow  Windows workloads to run as `ContainerAdministrator` even when those workloads set the `runAsNonRoot` option to `true `.

This issue has been rated low and assigned CVE-2021-25749

### Am I vulnerable?

All Kubernetes clusters with following versions, running Windows workloads with `runAsNonRoot` are impacted

#### Affected Versions

- kubelet v1.20 - v1.21

- Fix handling of aws-load-balancer-security-groups annotation. Security-Groups assigned with this annotation are no longer modified by kubernetes which is the expected behaviour of most users. Also no unnecessary Security-Groups are created anymore if this annotation is used. ([#88691](https://github.com/kubernetes/kubernetes/pull/88691),...

    * Openstack cinder v1/v2/auto API support ([#40423](https://github.com/kubernetes/kubernetes/pull/40423), [@mkutsevol](https://github.com/mkutsevol))

### Apps

- Added deleting pods created by `DaemonSet` assigned to not existing nodes. ([#73401](https://github.com/kubernetes/kubernetes/pull/73401), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

- Fixed an EndpointSlice Controller hashing bug that could cause EndpointSlices to incorrectly handle Pods with duplicate IP addresses. For example this could happen when a new Pod reused an IP that was also assigned to a Pod in a completed state. ([#115907](https://github.com/kubernetes/kubernetes/pull/115907), [@qinqon](https://github.com/qinqon)) [SIG Apps and Network]

- Empty values are no longer assigned to undefined resources (CPU or memory) when storing the resources allocated to the pod in checkpoint. ([#117615](https://github.com/kubernetes/kubernetes/pull/117615), [@aheng-ch](https://github.com/aheng-ch))