* The `--node-name` flag for kubeadm now dictates the Node API object name the kubelet uses for registration, in all cases but where you might use an in-tree cloud provider. If you're not using an in-tree cloud provider, `--node-name` will set the Node API object name. If you're using an in-tree cloud provider, you MUST make `--node-name` match the name the in-tree cloud provider decides to use.

uniqueIDs of the Google service accounts were being used in RBAC role bindings. The behavior can be overridden by explicitly specifying the scope values as comma-separated string in the "users[*].config.scopes" field in the KUBECONFIG file.) This way, users can now  set a Google Service Account JSON key in the  GOOGLE_APPLICATION_CREDENTIALS environment variable, craft a kubeconfig file with GKE master IP+CA cert, and authenticate to GKE in headless mode without requiring gcloud CLI. ([#58141](ht...

    * setting `ENABLE_METADATA_CONCEALMENT=true` in kube-up will now set a `cloud.google.com/metadata-proxy-ready=true` label on new nodes. In v1.16, the metadata proxy add-on will switch to using that label as a node selector.

  or required. ([#124553](https://github.com/kubernetes/kubernetes/pull/124553), [@pmalek](https://github.com/pmalek))
- Fixed a 1.30.0 regression in openapi descriptions of `PodIP.IP`  and `HostIP.IP` fields to mark the fields used as keys in those lists as required. ([#126057](https://github.com/kubernetes/kubernetes/pull/126057), [@thockin](https://github.com/thockin))

### SIG Openstack

  - In version 1.9, the default will be `""`, which means no built-in cloud provider extension will be enabled by default.

  - Enable an out-of-tree cloud provider with `--cloud-provider=external` in either version.

Lifecycle

SIG Cluster Lifecycle has been focusing on improving kubeadm in order to bring it to GA in a future release, as well as developing the [Cluster API](https://github.com/kubernetes/kube-deploy/tree/master/cluster-api). For kubeadm, most new features, such as support for CoreDNS, IPv6 and Dynamic Kubelet Configuration, have gone in as alpha features. We expect to graduate these features to beta and beyond in the next release. The initial Cluster API spec and GCE sample implementation...

### kube-proxy

- Fixed a regression in `kube-proxy` introduced in version `1.26.0+` to make externalIPs workwith externalTrafficPolicy: Local.
   ([#121919](https://github.com/kubernetes/kubernetes/pull/121919), [@uablrek](https://github.com/uablrek))
- Fixed a regression in migration of in-tree vSphere volumes to the CSI driver introduced in version `1.29.0`+.

### Structured Logging in Kubelet

Kubelet has adopted structured logging, thanks to community effort in accomplishing this within the release timeline. Structured logging in the project remains an ongoing effort -- for folks interested in participating, [keep an eye / chime in to the mailing list discussion](https://groups.google.com/g/kubernetes-dev/c/y4WIw-ntUR8).