#### **Cloud Provider Integration**

* kubectl commands run inside a pod using a kubeconfig file now use the namespace specified in the kubeconfig file, instead of using the pod namespace. If no kubeconfig file is used, or the kubeconfig does not specify a namespace, the pod namespace is still used as a fallback. ([#44570](https://github.com/kubernetes/kubernetes/pull/44570), [@liggitt](https://github.com/liggitt))

# Kubernetes v1.15 Release Notes

## 1.15 What’s New

A complete changelog for the release notes is now hosted in a customizable format at [https://relnotes.k8s.io/](https://relnotes.k8s.io/?releaseVersions=1.15.0). Check it out and please give us your feedback!

### Cluster Lifecycle

#### kubeadm

* [beta] A new `upgrade` subcommand allows you to automatically upgrade a self-hosted cluster created with kubeadm. ([#296](https://github.com/kubernetes/enhancements/issues/296), [@luxas](https://github.com/luxas))

  //
  // Localhost - a profile defined in a file on the node should be used.
  // RuntimeDefault - the container runtime default profile should be used.
  // Unconfined - no profile should be applied.
  // +unionDiscriminator
  optional string type = 1;

  // localhostProfile indicates a profile defined in a file on the node should be used.
  // The profile must be preconfigured on the node to work.

  `kubelet_container_log_filesystem_used_bytes`
  `kubelet_volume_stats_capacity_bytes`
  `kubelet_volume_stats_available_bytes`
  `kubelet_volume_stats_used_bytes`
  `kubelet_volume_stats_inodes`
  `kubelet_volume_stats_inodes_free`
  `kubelet_volume_stats_inodes_used`
  `plugin_manager_total_plugins`
  `volume_manager_total_volumes`

- HA improvements:
  - `kubeadm join --experimental-control-plane` can now be used to join control plane instances to an existing cluster.
  - `kubeadm upgrade node experimental-control-plane` can now be used for upgrading secondary control plane instances created with `kubeadm join --experimental-control-plane`.
Multi-arch support (EXPERIMENTAL):

- New flag `--show-hidden-metrics-for-version` in kube-proxy, kubelet, kube-controller-manager, and kube-scheduler can be used to show all hidden metrics that are deprecated in the previous minor release....

- Deprecated `genericclioptions.IOStreams` and used `genericiooptions.IOStreams`. ([#117102](https://github.com/kubernetes/kubernetes/pull/117102), [@ardaguclu](https://github.com/ardaguclu))

* API resource discovery now includes the `singularName` used to refer to the resource. ([#43312](https://github.com/kubernetes/kubernetes/pull/43312), [@deads2k](https://github.com/deads2k))
* Add the ability to lock on ConfigMaps to support HA for self hosted components ([#42666](https://github.com/kubernetes/kubernetes/pull/42666), [@timothysc](https://github.com/timothysc))