Example: suppose you develop a custom plugin that denies Pods that have a `schedulable=false` label. 

- Kubelet: added validation for labels provided with --node-labels. Malformed labels will result in errors. ([#109263](https://github.com/kubernetes/kubernetes/pull/109263), [@FeLvi-zzz](https://github.com/FeLvi-zzz))

<p>
Branches and direct jumps are always written as offsets to the PC, or as
jumps to labels:
</p>

<pre>
label:
	MOVW $0, R1
	JMP label
</pre>

<p>
Each label is visible only within the function in which it is defined.
It is therefore permitted for multiple functions in a file to define
and use the same label names.
Direct jumps and call instructions can target text symbols,

### In Ihre Sprache übersetzen

Fess ist eine internationalisierte Software.

Wenn Sie Labels/Nachrichten für Ihre Sprache hinzufügen möchten, übersetzen Sie bitte die Eigenschaftendatei und benennen Sie sie in fess\_\*\_[lang].properties um.

            createdStr = sdf.format(created);
        } else {
            createdStr = ComponentUtil.getMessageManager().getMessage(locale, "labels.search_unknown");
        }
        doc.put(CACHE_MSG, ComponentUtil.getMessageManager().getMessage(locale, "labels.search_cache_msg", url, createdStr));

        doc.put(QUERIES, queries);

- For Dynamic Resource Allocation, labels in node selectors now are validated. Invalid labels already caused runtime errors before and are unlikely to occur in practice. ([#128932](https://github.com/kubernetes/kubernetes/pull/128932), [@pohly](https://github.com/pohly))

  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

                            final Locale locale = LocaleUtils.toLocale(lang);
                            final String label = locale.getDisplayName(displayLocale);
                            final Map<String, String> map = new HashMap<>(2);
                            map.put(Constants.ITEM_LABEL, label);
                            map.put(Constants.ITEM_VALUE, lang);
                            langItems.add(map);

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...

* delete useless params containerized ([#56146](https://github.com/kubernetes/kubernetes/pull/56146), [@jiulongzaitian](https://github.com/jiulongzaitian))

* dockershim now makes an Image's Labels available in the Info field of ImageStatusResponse ([#58036](https://github.com/kubernetes/kubernetes/pull/58036), [@shlevy](https://github.com/shlevy))