Users of FlexVolume should move their workloads to CSI driver.

### Deprecation of klog specific flags

To simplify the code base, several [logging flags got marked as deprecated](https://kubernetes.io/docs/concepts/cluster-administration/system-logs/#klog) in Kubernetes 1.23.

    - [Node Binaries](#node-binaries-17)
  - [Changelog since v1.21.0](#changelog-since-v1210)
  - [What's New (Major Themes)](#whats-new-major-themes)
    - [Removal of several beta Kubernetes APIs](#removal-of-several-beta-kubernetes-apis)
    - [Kubernetes release cadence change](#kubernetes-release-cadence-change)
    - [External credential providers](#external-credential-providers)

- client-go discovery clients constructed using `NewDiscoveryClientForConfig` or `NewDiscoveryClientForConfigOrDie` default to rate limits that cause normal discovery request patterns to take several seconds. This is fixed in https://issue.k8s.io/86168 and will be resolved in v1.17.1. As a workaround, the `Burst` value can be adjusted higher in the rest.Config passed into `NewDiscoveryClientForConfig` or `NewDiscoveryClientForConfigOrDie`.

- DRA: fixed several issues related to `allocationMode: all`. ([#127565](https://github.com/kubernetes/kubernetes/pull/127565), [@pohly](https://github.com/pohly))

### (No, really, you MUST read this before you upgrade)

- 'The `IPv6DualStack` feature gate for external cloud providers was removed.
  (The feature became GA in 1.23 and the gate was removed for all other
  components several releases ago.) If you were still manually
  enabling it you must stop now.' ([#116255](https://github.com/kubernetes/kubernetes/pull/116255), [@danwinship](https://github.com/danwinship))

- Migrate scheduling_queue.go to structured logging ([#98358](https://github.com/kubernetes/kubernetes/pull/98358), [@tanjing2020](https://github.com/tanjing2020)) [SIG Scheduling]
- Several flags related to the deprecated dockershim which are present in the kubelet command line are now deprecated. ([#98730](https://github.com/kubernetes/kubernetes/pull/98730), [@dims](https://github.com/dims)) [SIG Node]

* Caching added to the OIDC client auth plugin to fix races and reduce the time kubectl commands using this plugin take by several seconds. ([#38167](https://github.com/kubernetes/kubernetes/pull/38167), [@ericchiang](https://github.com/ericchiang))

  * [stable] [cri-o](https://github.com/kubernetes-incubator/cri-o): cri-o v1.10 updated CRI version to v1alpha2 and made several bug and stability fixes. [@mrunalp]
  * [stable] [frakti](https://github.com/kubernetes/frakti): frakti v1.10 implemented GCE Persistent Disk as a high performance volume, fixed several bugs, added ARM64 support, and passed all CRI validation conformance tests and node e2e conformance tests. [@resouer]

For the 1.13 release, SIG API Machinery is happy to announce that the [dry-run functionality](https://kubernetes.io/docs/reference/using-api/api-concepts/#dry-run) is now beta.

### SIG Auth

- The `IPTablesOwnershipCleanup` feature (KEP-3178) is now GA; kubelet no longer
  creates the `KUBE-MARK-DROP` chain (which has been unused for several releases)
  or the `KUBE-MARK-MASQ` chain (which is now only created by kube-proxy). ([#119374](https://github.com/kubernetes/kubernetes/pull/119374), [@danwinship](https://github.com/danwinship))