- Kubeadm now respects the custom image registry configuration across joins and upgrades. Kubeadm passes the custom registry to the kubelet for a custom pause container. ([#70603](https://github.com/kubernetes/kubernetes/pull/70603), [@chuckha](https://github.com/chuckha))

		* `kubectl version` has new flag --output (=json or yaml) allowing result of the command to be parsed in either json format or yaml. ([#39858](https://github.com/kubernetes/kubernetes/pull/39858), [@alejandroEsc](https://github.com/alejandroEsc))


  * Bug fixes

- The `/flagz` endpoint in kube-apiserver now correctly returns parsed flag values when the `ComponentFlagz` feature-gate is enabled. ([#130328](https://github.com/kubernetes/kubernetes/pull/130328), [@richabanker](https://github.com/richabanker)) [SIG API Machinery and Instrumentation]

  
      `kube-proxy --feature-gates NFTablesProxyMode=true --proxy-mode nftables`
  
  This is currently an alpha-level feature and while it probably will not
  eat your data, it may nibble at it a bit. (It passes e2e testing but has
  not yet seen real-world use.)
  
  At this point it should be functionally mostly identical to the iptables
  mode, except that it does not (and will not) support Service NodePorts on

- Kubeadm: Fix a bug where kubeadm cannot parse kubelet's version if the latter dumps logs on the standard error. ([#85351](https://github.com/kubernetes/kubernetes/pull/85351), [@rosti](https://github.com/rosti))

* API server properly parses propagationPolicy as a query parameter sent with a delete request ([#63414](https://github.com/kubernetes/kubernetes/pull/63414), [@roycaihw](https://github.com/roycaihw))

### Authorization
* The authorization.k8s.io API group was promoted to v1 ([#40709](https://github.com/kubernetes/kubernetes/pull/40709), [@liggitt](https://github.com/liggitt))
* The SubjectAccessReview API now passes subresource and resource name information to the authorizer to answer authorization queries. ([#40935](https://github.com/kubernetes/kubernetes/pull/40935), [@liggitt](https://github.com/liggitt))

### Autoscaling

- Kube-apiserver: fixes a 1.32+ regression validating OIDC and anonymous authentication flags are mutually exclusive to authentication configuration. Fixes an issue where the kube-apiserver `/flagz` endpoint would not respond correctly with parsed flags value. ([#130332](https://github.com/kubernetes/kubernetes/pull/130332), [@richabanker](https://github.com/richabanker)) [SIG API Machinery and Testing]

  * Fix journalctl leak
  * Fix container memory rss
  * Fix incorrect CPU usage with 4.7 kernel
  * OOM parser uses kmsg
  * Add hugepages support
  * Add CRI-O support

    *   This is the first release of rktlet and it implements support for the CRI including fetching images, running pods, CNI networking, logging and exec.
This release passes 129/145 Kubernetes e2e conformance tests.
*   Container Runtime Interface API change. [[@yujuhong](https://github.com/yujuhong)]