* Fix a scalability issue where high rates of event writes degraded etcd performance. ([#64539](https://github.com/kubernetes/kubernetes/pull/64539), [@ccding](https://github.com/ccding))

* Allow having empty paths in *path operations* used with `include_router` and a `prefix`.
    * This allows having a router for `/cats` and all its *path operations*, while having one of them for `/cats`.
    * Now it doesn't have to be only `/cats/` (with a trailing slash).

- `kube-apiserver` added:

  
  Portworx CSI driver is required to enable migration.
  This PR adds support of the `CSIMigrationPortworx` feature gate, which can be enabled by:
  
  1. Adding the feature flag to the kube-controller-manager `--feature-gates=CSIMigrationPortworx=true` 
  2. Adding the feature flag to the kubelet config:
  
  featureGates:

- Fixing issue with Winkernel Proxier - IPV6 load balancer policies are missing when service is configured with ipFamilyPolicy: RequireDualStack ([#115503](https://github.com/kubernetes/kubernetes/pull/115503), [@princepereira](https://github.com/princepereira)) [SIG Network and Windows]

- Fixing issue with Winkernel Proxier - ClusterIP Loadbalancers are missing if the ExternalTrafficPolicy is set to Local and the available endpoints are all remoteEndpoints. ([#116001](https://github.com/kubernetes/kubernetes/pull/116001), [@princepereira](https://github.com/princepereira)) [SIG Network]

- Fixing issue with Winkernel Proxier - ClusterIP Loadbalancers are missing if the ExternalTrafficPolicy is set to Local and the available endpoints are all remoteEndpoints. ([#116000](https://github.com/kubernetes/kubernetes/pull/116000), [@princepereira](https://github.com/princepereira)) [SIG Network]

- Fix log line in scheduler that inaccurately implies that volume binding has finalized ([#116048](https://github.com/kubernetes/kubernetes/pull/116048), [@TommyStarK](https://github.com/TommyStarK)) [SIG Scheduling and Storage]

	"claimRef":                      "claimRef is part of a bi-directional binding between PersistentVolume and PersistentVolumeClaim. Expected to be non-nil when bound. claim.VolumeName is the authoritative bind between PV and PVC. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#binding",

            "type": "string"
          },
          "parameterNotFoundAction": {