- 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),...

-->
```release-note

```

#### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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`--oidc-required-claim=<claim>=<value>` Previously, there was no mechanism for a user to specify claims in the OIDC authentication process that were requid to be present in the ID Token with an expected value. This version now makes it possible to require claims support for the OIDC authentication. It allows users to pass in a `--oidc-required-claims` flag, and `key=value` pairs in the API config, which will ensure that the specified required claims are checked against the ID Token claims. ([#6213...

  - DaemonSet pods now make use of scheduling features that require kubelets to be at 1.11 or above. Ensure all kubelets in the cluster are at 1.11 or above before upgrading kube-controller-manager to 1.13.

* 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))

- hcsshim is unchanged from v1.11, at v0.11 ([#64272](https://github.com/kubernetes/kubernetes/pull/64272))
- gitRepo volumes in pods no longer require git 1.8.5 or newer; older git versions are now supported. ([#62394](https://github.com/kubernetes/kubernetes/pull/62394))

- Kubeadm: warn but do not error out on missing "ca.key" files for root CA, front-proxy CA and etcd CA, during "kubeadm join --control-plane" if the user has provided all certificates, keys and kubeconfig files which require signing with the given CA keys. ([#94988](https://github.com/kubernetes/kubernetes/pull/94988), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

### 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]

- `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))

- 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]