## 1.9 Release Notes

## WARNING: etcd backup strongly recommended

Before updating to 1.9, you are strongly recommended to back up your etcd data. Consult the installation procedure you are using (kargo, kops, kube-up, kube-aws, kubeadm etc) for specific advice.

		defer xioutil.SafeClose(diffCh)
		for res := range objInfoCh {
			if res.Err != nil {
				diffCh <- madmin.DiffInfo{Err: res.Err}
				return
			}
			if contextCanceled(ctx) {
				// Just consume input...
				continue
			}
			obj := res.Item

			// Ignore object prefixes which are excluded
			// from versioning via the MinIO bucket versioning extension.

* Fix aggressive VM calls for Azure VMSS ([#83102](https://github.com/kubernetes/kubernetes/pull/83102), [@feiskyer](https://github.com/feiskyer))

network latency sensitive applications, as well as applications that benefit from CPU cache residency.  Next, [Huge Pages](https://kubernetes.io/docs/tasks/manage-hugepages/scheduling-hugepages/), which allows pods to consume either 2Mi or 1Gi Huge Pages.  This benefits applications that consume large amounts of memory.  Use of Huge Pages is a common tuning recommendation for databases and JVMs.  Finally, the [Device Plugin](https://kubernetes.io/docs/concepts/cluster-administration/device-plugins/) feature,...

* Fix aggressive VM calls for Azure VMSS ([#83102](https://github.com/kubernetes/kubernetes/pull/83102), [@feiskyer](https://github.com/feiskyer))

- Fixes a flaw (CVE-2019-11253) in json/yaml decoding where large or malformed documents could consume excessive server resources. Request bodies for normal API requests (create/delete/update/patch operations of regular resources) are now limited to 3MB. ([#83261](https://github.com/kubernetes/kubernetes/pull/83261), [@liggitt](https://github.com/liggitt))...

* Let Services preserve client IPs and not double-hop from external LBs (alpha) ([#29409](https://github.com/kubernetes/kubernetes/pull/29409), [@girishkalele](https://github.com/girishkalele))
* [Kubelet] Optionally consume configuration from <node-name> named config maps ([#30090](https://github.com/kubernetes/kubernetes/pull/30090), [@mtaufen](https://github.com/mtaufen))

## External Dependency Version Information

Continuous integration builds have used the following versions of external dependencies, however, this is not a strong recommendation and users should consult an appropriate installation or upgrade guide before deciding what versions of etcd, docker or rkt to use.

* Docker versions 1.10.3 - 1.12.3
  * Docker version 1.11.2 known issues

- github.com/Azure/go-autorest/tracing: [v0.5.0](https://github.com/Azure/go-autorest/tracing/tree/v0.5.0)
- github.com/armon/consul-api: [eb2c6b5](https://github.com/armon/consul-api/tree/eb2c6b5)
- github.com/bifurcation/mint: [93c51c6](https://github.com/bifurcation/mint/tree/93c51c6)
- github.com/caddyserver/caddy: [v1.0.3](https://github.com/caddyserver/caddy/tree/v1.0.3)

BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, \"Noto Sans\", \"Liberation Sans\", sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\";\n  --font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, \"Liberation Mono\", \"Courier New\", monospace;\n}\n\n*,\n*::before,\n*::after {\n  box-sizing: border-box;\n}\n\nhtml {\n  font-family: sans-serif;\n  line-height: 1.15;\n  -webkit-text-size-adjust: 100%;\n  -webkit-tap-highlight-color: rgba(0,...