pre-1.0 to 1.6 kubelet is not supported.
* Fluentd was migrated to Daemon Set, which targets nodes with
  beta.kubernetes.io/fluentd-ds-ready=true label. If you use fluentd in your
  cluster please make sure that the nodes with version 1.6+ contains this
  label.

### kubectl
* Running `kubectl taint` (alpha in 1.5) against a 1.6 server requires upgrading kubectl to version 1.6

            return entity;
        });
    }

    /**
     * Registers label type data for rendering in the view.
     *
     * @param data render data to populate with label information
     */
    protected void registerLabels(final RenderData data) {
        RenderDataUtil.register(data, "labelTypeItems", labelTypeService.getLabelTypeList());

    /** Read-only file attribute */
    int ATTR_READONLY = 0x01;
    /** Hidden file attribute */
    int ATTR_HIDDEN = 0x02;
    /** System file attribute */
    int ATTR_SYSTEM = 0x04;
    /** Volume label attribute */
    int ATTR_VOLUME = 0x08;
    /** Directory attribute */
    int ATTR_DIRECTORY = 0x10;
    /** Archive attribute */
    int ATTR_ARCHIVE = 0x20;

	// Collect node level S3 HTTP metrics.
	httpStats := globalHTTPStats.toServerHTTPStats(false)

	// Currently we only collect S3 API related stats, so we set the "type"
	// label to "s3".

	m.Set(apiRejectedAuthTotal, float64(httpStats.TotalS3RejectedAuth), "type", "s3")
	m.Set(apiRejectedTimestampTotal, float64(httpStats.TotalS3RejectedTime), "type", "s3")

* <a href="https://github.com/fastapi/fastapi/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3Aquestion+-label%3Aanswered+" class="external-link" target="_blank">GitHub Issues</a>

In many cases you might already know the answer for those questions. 🤓

#### Cluster Selection
* [alpha] Federation [ClusterSelector annotation](https://kubernetes.io/docs/tasks/administer-federation/cluster/#clusterselector-annotation) to direct objects to federated clusters with matching labels.


### **Instrumentation**
#### Core Metrics API

     * @return The query processor.
     */
    public static QueryProcessor getQueryProcessor() {
        return getComponent(QUERY_PROCESSOR);
    }

    /**
     * Gets the label type helper component.
     * @return The label type helper.
     */
    public static LabelTypeHelper getLabelTypeHelper() {
        return getComponent(LABEL_TYPE_HELPER);
    }

    /**

            "More data is available.", "Access is denied.", "The data area passed to a system call is too small.",
            "The filename, directory name, or volume label syntax is incorrect.", "The system cannot find the file specified.",
            "Cannot create a file when that file already exists.", "The handle is invalid.", "The specified path is invalid.",

Kubeadm: apply `second stage` of the plan to migrate kubeadm away from the usage of the word `master` in labels and taints. For new clusters, the label `node-role.kubernetes.io/master` will no longer be added to control plane nodes, only the label `node-role.kubernetes.io/control-plane` will be added. For clusters that are being upgraded to 1.24 with `kubeadm upgrade apply`, the command will remove the label `node-role.kubernetes.io/master` from existing control plane nodes. For new clusters, both the old...

 - Newly provisioned PVs by Azure disk will no longer have the beta `FailureDomain` label. Azure disk volume plugin will start to have GA topology label instead. ([#101534](https://github.com/kubernetes/kubernetes/pull/101534), [@kassarl](https://github.com/kassarl))