- Kubectl: add bash-completion for comma separated list on `kubectl get` ([#98301](https://github.com/kubernetes/kubernetes/pull/98301), [@phil9909](https://github.com/phil9909))

the email address of the service account directly. (This is a breaking change if the numeric 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...

- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API...

- Added support for `PodAndContainerStatsFromCRI` feature gate, which allows a user to specify their pod stats must also come from the CRI, not `cAdvisor`. ([#103095](https://github.com/kubernetes/kubernetes/pull/103095), [@haircommander](https://github.com/haircommander))

- Kube-apiserver: multiple comma-separated protocols in a single X-Stream-Protocol-Version header are now recognized, in addition to multiple headers, complying with RFC2616 ([#89857](https://github.com/kubernetes/kubernetes/pull/89857), [@tedyu](https://github.com/tedyu)) [SIG API...

## Known Issues

- Concurrently joining control-plane nodes does not work as expected in kubeadm 1.15.0. The feature was planned for release in 1.15.0, but a fix may  come in a follow up patch release.

### kubectl (CLI)
* `kubectl create role` and  `kubectl create clusterrole`  invocations must be updated to specify multiple resource names as repeated  `--resource-name` arguments instead of comma-separated arguments to a single `--resource-name` argument. E.g. `--resource-name=x,y` must become `--resource-name x --resource-name y` ([#44950](https://github.com/kubernetes/kubernetes/pull/44950), [@xilabao](https://github.com/xilabao))

- The `CloudDualStackNodeIPs` feature is now `beta`, meaning that when using
  an external cloud provider that has been updated to support the feature,
  you can pass comma-separated dual-stack `--node-ips` to `kubelet` and have
  the cloud provider take both IPs into account. ([#120275](https://github.com/kubernetes/kubernetes/pull/120275), [@danwinship](https://github.com/danwinship))

- Log messages and metrics for the watch cache are now keyed by `<resource>.<group>` instead of `go` struct type. This means e.g. that `*v1.Pod` becomes `pods`. Additionally, resources that come from `CustomResourceDefinitions` are displayed as the correct resource and group, instead of `*unstructured.Unstructured`. ([#111807](https://github.com/kubernetes/kubernetes/pull/111807), [@ncdc](https://github.com/ncdc))