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- Kubernetes will try to acquire the iptables lock every 100 msec during 5 seconds instead of every second. This is especially useful for environments using kube-proxy in iptables mode with a high churn rate of services. ([#85771](https://github.com/kubernetes/kubernetes/pull/85771),...

- `client-go`: fixed the wait time for trying to acquire the leader lease ([#114872](https://github.com/kubernetes/kubernetes/pull/114872), [@Iceber](https://github.com/Iceber))

        * `etcd_request_cache_add_latency_seconds`
        * `etcd_request_latency_seconds`
        * `transformation_latencies_seconds`
        * `data_key_generation_latencies_seconds`
* acquire lock before operating unschedulablepodsmap ([#73022](https://github.com/kubernetes/kubernetes/pull/73022), [@denkensk](https://github.com/denkensk))

When enabled, Secret API objects containing service account tokens are no longer auto-generated for every ServiceAccount. Use the [TokenRequest](https://kubernetes.io/docs/reference/kubernetes-api/authentication-resources/token-request-v1/) API to acquire service account tokens, or if a non-expiring token is required, create a Secret API object for the token controller to populate with a service account token by following this [guide](https://kubernetes.io/docs/concepts/configuration/secret/#servi...

- Fix kubelet from panic after getting the wrong signal ([#98200](https://github.com/kubernetes/kubernetes/pull/98200), [@wzshiming](https://github.com/wzshiming)) [SIG Node]
- Fix repeatedly acquire the inhibit lock ([#98088](https://github.com/kubernetes/kubernetes/pull/98088), [@wzshiming](https://github.com/wzshiming)) [SIG Node]

- Fix kubelet from panic after getting the wrong signal ([#98200](https://github.com/kubernetes/kubernetes/pull/98200), [@wzshiming](https://github.com/wzshiming)) [SIG Node]
- Fix repeatedly acquire the inhibit lock ([#98088](https://github.com/kubernetes/kubernetes/pull/98088), [@wzshiming](https://github.com/wzshiming)) [SIG Node]

### Bug or Regression

- Fix error when trying to expand a volume that does not require node expansion ([#123055](https://github.com/kubernetes/kubernetes/pull/123055), [@gnufied](https://github.com/gnufied)) [SIG Node and Storage]

* PodSecurityPolicy: when multiple policies allow a submitted pod, priority is given to ones which do not require any fields in the pod spec to be defaulted. If the pod must be defaulted, the first policy (ordered by name) that allows the pod is used. ([#52849](https://github.com/kubernetes/kubernetes/pull/52849), [@liggitt](https://github.com/liggitt))

- kube-proxy: HealthzBindAddress and MetricsBindAddress now support ipv6 addresses. ([#76320](https://github.com/kubernetes/kubernetes/pull/76320),...