- Fixed a race condition in kube-controller-manager and the scheduler, caused by
  a bug in the transforming informer during the Resync operation, 
  by making the transforming function idempotent. ([#124352](https://github.com/kubernetes/kubernetes/pull/124352), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Scheduling]

- github.com/alecthomas/template: [fb15b89](https://github.com/alecthomas/template/tree/fb15b89)
- github.com/andreyvit/diff: [c7f18ee](https://github.com/andreyvit/diff/tree/c7f18ee)
- github.com/bifurcation/mint: [93c51c6](https://github.com/bifurcation/mint/tree/93c51c6)
- github.com/caddyserver/caddy: [v1.0.3](https://github.com/caddyserver/caddy/tree/v1.0.3)
- github.com/cenkalti/backoff: [v2.1.1+incompatible](https://github.com/cenkalti/backoff/tree/v2.1.1)

* Only set sysctls for infra containers ([#32383](https://github.com/kubernetes/kubernetes/pull/32383), [@sttts](https://github.com/sttts))
* fix kubectl taint e2e flake: add retries for removing taint ([#33872](https://github.com/kubernetes/kubernetes/pull/33872), [@kevin-wangzefeng](https://github.com/kevin-wangzefeng))

In addition, the NodeRestriction admission plugin now prevents kubelets from modifying taints on their Node API objects, making it easier to keep track of which nodes should be in use.

### SIG CLI

- Filter published OpenAPI schema by making nullable, required fields non-required in order to avoid kubectl to wrongly reject null values. ([#85722](https://github.com/kubernetes/kubernetes/pull/85722), [@sttts](https://github.com/sttts))

  static <E> Queue<E> discardingQueue() {
    return (Queue) DISCARDING_QUEUE;
  }

  /*
   * Note: All of this duplicate code sucks, but it saves a lot of memory. If only Java had mixins!
   * To maintain this code, make a change for the strong reference type. Then, cut and paste, and
   * replace "Strong" with "Soft" or "Weak" within the pasted text. The primary difference is that

	response, err = s.client.Do(request)
	c.Assert(err, nil)
	// assert the status code of the response.
	c.Assert(response.StatusCode, http.StatusOK)

	// constructing http request to delete the bucket.
	// making an attempt to delete an non-empty bucket.
	// expected to fail.
	request, err = newTestSignedRequest(http.MethodDelete, getDeleteBucketURL(s.endPoint, bucketName),
		0, nil, s.accessKey, s.secretKey, s.signer)

  - The taint applied to control-plane nodes "node-role.kubernetes.io/master:NoSchedule" is now deprecated and will be removed in a future release after a GA deprecation period.
  - Apply toleration for a new, future taint "node-role.kubernetes.io/control-plane:NoSchedule" to the kubeadm CoreDNS / kube-dns managed manifests. Note that this taint is not yet applied to kubeadm control-plane nodes.

- Kubeadm: removed the toleration for the `node-role.kubernetes.io/master` taint from the CoreDNS deployment of `kubeadm`. With the 1.25 release of kubeadm the taint `node-role.kubernetes.io/master` is no longer applied to control plane nodes and the toleration for it can be removed with the release of 1.26. You can also perform the same toleration removal from your own...

- kubeadm: allow mixing the flag --config with the special flag --print-manifest of the subphases of 'kubeadm init phase addon'. ([#126740](https://github.com/kubernetes/kubernetes/pull/126740), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]