For metrics `etcd_request_duration_seconds`, `etcd_requests_total` and `etcd_request_errors_total` replace `type` label with API `resource` and `group` label.
  For metric `apiserver_selfrequest_total` add a API `group` label.
  For metrics `apiserver_watch_events_sizes` and `apiserver_watch_events_total` replace API `kind` label with `resource` label.

- PersistentVolumeLabel admission plugin, responsible for labeling `PersistentVolumes` with topology labels, now does not overwrite existing labels on PVs that were dynamically provisioned. It trusts the  dynamic provisioning that it provided the correct labels to the `PersistentVolume`, saving one potentially expensive cloud API call. `PersistentVolumes` created manually by users are labelled by the admission plugin in the same...

- Kubernetes was built with Go 1.23.2. ([#128110](https://github.com/kubernetes/kubernetes/pull/128110), [@haitch](https://github.com/haitch)) [SIG Release and Testing]
- Label `apps.kubernetes.io/pod-index` added to Pod from StatefulSets is promoted to stable

  - Make "kubeadm upgrade apply" add the "node-role.kubernetes.io/control-plane" label on existing nodes that only have the "node-role.kubernetes.io/master" label during upgrade.
  - Please adapt your tooling built on top of kubeadm to use the "node-role.kubernetes.io/control-plane" label.

 - 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))

 - Newly provisioned PVs by gce-pd will no longer have the beta FailureDomain label. gce-pd volume plugin will start to have GA topology label instead. ([#98700](https://github.com/kubernetes/kubernetes/pull/98700),...

- e2e framework: `framework.WithFeatureGate` `[Alpha]`, `[Beta]` and `[Feature:OffByDefault]` tags are now set 1:1 with `Alpha`,  `Beta`, `Feature:OffByDefault` Ginkgo labels, replacing`Feature:Alpha` and `Feature:Beta` labels. `BetaOffByDefault` is also added as a Ginkgo label only for off-by-default beta features ([#130908](https://github.com/kubernetes/kubernetes/pull/130908), [@BenTheElder](https://github.com/BenTheElder)) [SIG Testing]

    * setting `KUBE_PROXY_DAEMONSET=true` in kube-up will now set a `node.kubernetes.io/kube-proxy-ds-ready=true` label on new nodes. In v1.16, the kube-proxy daemonset add-on will switch to using that label as a node selector.

- When specifying an invalid value for a label, it was not always clear which label the value was specified for. Starting with this release, the label's key is included in such error messages, which makes debugging easier. ([#77144](https://github.com/kubernetes/kubernetes/pull/77144), [@kenegozi](https://github.com/kenegozi))...

        * kube-proxy addon starts to use the label `node.kubernetes.io/kube-proxy-ds-ready` instead of `beta.kubernetes.io/kube-proxy-ds-ready` as its node selector.
        * metadata-proxy addon starts to use the label `cloud.google.com/metadata-proxy-ready` instead of `beta.kubernetes.io/metadata-proxy-ready` as its node selector.