// first, if it is available, then fall back on the default
	// (as determined by kubelet) DNS settings.
	DNSClusterFirstWithHostNet DNSPolicy = "ClusterFirstWithHostNet"

	// DNSClusterFirst indicates that the pod should use cluster DNS
	// first unless hostNetwork is true, if it is available, then
	// fall back on the default (as determined by kubelet) DNS settings.

		return req, nil
	}

	// If the request body can be reset back to its original
	// state via the optional req.GetBody, do that.
	if req.GetBody != nil {
		body, err := req.GetBody()
		if err != nil {
			return nil, err
		}
		newReq := *req
		newReq.Body = body
		return &newReq, nil
	}

	// The Request.Body can't reset back to the beginning, but we

* Mark the LBaaS v1 of OpenStack cloud provider deprecated. ([#52821](https://github.com/kubernetes/kubernetes/pull/52821), [@FengyunPan](https://github.com/FengyunPan))

- In dual-stack bare-metal clusters, you can now pass dual-stack IPs to `kubelet --node-ip`.
  eg: `kubelet --node-ip 10.1.0.5,fd01::0005`. This is not yet supported for non-bare-metal
  clusters.
  
  In dual-stack clusters where nodes have dual-stack addresses, hostNetwork pods

				-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
				-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
				-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
				-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
				-A KUBE-SEP-C6EBXVWJJZMIWKLZ -m comment --comment ns4/svc4:p80 -s 10.180.0.5 -j KUBE-MARK-MASQ

    - [CSI Service Account Token](#csi-service-account-token)
    - [CSI Health Monitoring](#csi-health-monitoring)
  - [Known Issues](#known-issues)
    - [<code>TopologyAwareHints</code> feature falls back to default behavior](#topologyawarehints-feature-falls-back-to-default-behavior)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)

- Fixes a 1.30.0 regression in openapi descriptions of imagePullSecrets and hostAliases fields to mark the fields used as keys in those lists as either defaulted or required. ([#124694](https://gith...

* Mark the LBaaS v1 of OpenStack cloud provider deprecated. ([#52821](https://github.com/kubernetes/kubernetes/pull/52821), [@FengyunPan](https://github.com/FengyunPan))

## Changelog since v1.15.11

## Changes by Kind

### Bug or Regression

- Client-go: resolves an issue with informers falling back to full list requests when timeouts are encountered, rather than re-establishing a watch. ([#89978](https://github.com/kubernetes/kubernetes/pull/89978), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]

## WARNING: etcd backup strongly recommended

Before updating to 1.6, you are strongly recommended to back up your etcd data.
Please consult the installation procedure you are using (kargo, kops, kube-up,
kube-aws, kubeadm etc) for specific advice.

1.6 encourages etcd3, and switching from etcd2 to etcd3 involves a full