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.

- Add `RequiresExactMatch` for `label.Selector` ([#85048](https://github.com/kubernetes/kubernetes/pull/85048), [@shaloulcy](https://github.com/shaloulcy))
- Adds a new label to indicate what is managing an EndpointSlice. ([#83965](https://github.com/kubernetes/kubernetes/pull/83965), [@robscott](https://github.com/robscott))

  - 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), [@Jiawei0227](https://github.com/Jiawei0227)) [SIG Cloud Provider, Storage and Testing]

- 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))...

*   StatefulSet controller now creates a label for each Pod in a StatefulSet. The label is `statefulset.kubernetes.io/pod-name`, where `pod-name` = the name of the Pod. This allows users to create a Service per Pod to expose a connection to individual Pods. ([#55329](https://github.com/kubernetes/kubernetes/pull/55329),[...

- 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

- Endpoints resources created by the Endpoints controller now include a label indicating this.
  Users who manually create Endpoints can also add this label, but they should consider
  using `EndpointSlices` instead. ([#130564](https://github.com/kubernetes/kubernetes/pull/130564), [@danwinship](https://github.com/danwinship)) [SIG Apps and Network]

  - ip-mask-agent addon starts to use the label `node.kubernetes.io/masq-agent-ds-ready` instead of `beta.kubernetes.io/masq-agent-ds-ready` as its node selector.
  - 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.