*   Best practice for version 1.9 and future versions is to explicitly set a cloud-provider. See [the documentation](https://kubernetes.io/docs/getting-started-guides/scratch/#cloud-providers)
*   The kubeadm `--skip-preflight-checks` flag is now deprecated and will be removed in a future release.

- The CSI driver-registrar external sidecar container v1.0.0-rc2 is known to take up to 1 minute to start in some cases. We expect this issue to be resolved in a future release of the sidecar container. For verification, please see the release notes of future releases of the external sidecar container. ([#76](https://github.com/kubernetes-csi/driver-registrar/issues/76))

  - Apply toleration for a new, future taint "node-role.kubernetes.io/control-plane:NoSchedule" to the kubeadm CoreDNS / kube-dns managed manifests. Note that this taint is not yet applied to kubeadm control-plane nodes.
  - Please adapt your workloads to tolerate the same future taint preemptively.
    

  - The `--containerized` flag is deprecated and will be removed in a future release ([#74267](https://github.com/kubernetes/kubernetes/pull/74267), [@dims](https://github.com/dims))

- hyperkube
  - The `--make-symlinks` flag is deprecated and will be removed in a future release. ([#74975](https://github.com/kubernetes/kubernetes/pull/74975), [@dims](https://github.com/dims))
- API

* Created a new `dryRun` query parameter for mutating endpoints. If the parameter is set, then the query will be rejected, as the feature is not implemented yet. This will allow forward compatibility with future clients; otherwise, future clients talking with older apiservers might end up modifying a resource even if they include the `dryRun` query parameter. ([#63557](https://github.com/kubernetes/kubernetes/pull/63557), [@apelisse](https://github.com/apelisse))

- Kubeadm: remove the `IPv6DualStack` feature gate. The...

#### kubelet:

The flag determines whether pods in a terminal state are displayed. It will be inert in 1.11 and removed in a future release. ([#60210](https://github.com/kubernetes/kubernetes/pull/60210), [@deads2k](https://github.com/deads2k))

* The ability to use the insecure HTTP port of kube-controller-manager and cloud-controller-manager has been deprecated, and will be removed in a future release. Use `--secure-port` and `--bind-address` instead. ([#59582](https://github.com/kubernetes/kubernetes/pull/59582),...

For more information, see [#53109](https://github.com/kubernetes/kubernetes/issues/53109).

## Deprecations

`--experimental-patches` is now deprecated and will be removed in a future release. You can migrate to using the new flag `--patches`. Add a new field `{Init|Join}Configuration.patches.directory` that can be used for the same purpose. For `init` and `join` it is now recommended that you migrate to configure patches via `{Init|Join}Configuration.patches.directory`. For the time being, these flags can be mixed with `--config`, but that might change in the future. On a command line, the last *patches flag takes precedence...