- For raw block CSI volumes on Kubernetes, kubelet was incorrectly calling CSI NodeStageVolume for every single "map" (i.e. raw block "mount") operation for a volume already attached to the node. This PR ensures it is only called once per volume per node. ([#112403](https://github.com/kubernetes/kubernetes/pull/112403), [@akankshakumari393](https://github.com/akankshakumari393)) [SIG Storage]

- PersistentVolumeClaim objects are no longer left with storage class set to `nil` forever, but will be updated retroactively once any StorageClass is set or created as default. ([#...

## Deprecations

				if took > maxDurationSecondsForLog {
					// Log if we took a lot of time to load.
					logger.Info("IAM refresh took (duration: %.2fs)", took)
				}
			}

			// Run purge routines once in each hour.
			if refreshStart.Hour() != lastPurgeHour {
				lastPurgeHour = refreshStart.Hour()
				// Poll and remove accounts for those users who were removed
				// from LDAP/OpenID.

- Client-go: fix that paged list calls with ResourceVersionMatch set would fail once paging kicked in. ([#107336](https://github.com/kubernetes/kubernetes/pull/107336), [@fasaxc](https://github.com/fasaxc)) [SIG API Machinery]

      while (referenceQueue.poll() != null) {}
    }

    /** Returns first entry of bin for given hash. */
    @Nullable E getFirst(int hash) {
      // read this volatile field only once
      AtomicReferenceArray<E> table = this.table;
      return table.get(hash & (table.length() - 1));
    }

    // Specialized implementations of map methods

	var totalBytesRead int64
	erasure, err := NewErasure(ctx, fi.Erasure.DataBlocks, fi.Erasure.ParityBlocks, fi.Erasure.BlockSize)
	if err != nil {
		return toObjectErr(err, bucket, object)
	}

	var healOnce sync.Once

	for ; partIndex <= lastPartIndex; partIndex++ {
		if length == totalBytesRead {
			break
		}

		partNumber := fi.Parts[partIndex].Number

		// Save the current part name and size.

- Kubeadm: deprecated the kubeadm `RootlessControlPlane` feature gate (previously alpha), given that the core K8s `UserNamespacesSupport` feature gate graduated to beta in 1.30.
  Once core Kubernetes support for user namespaces is generally available and kubeadm has started to support running the control plane in userns pods, the kubeadm `RootlessControlPlane` feature gate will be removed entirely.

  For more information, see [#57198](https://github.com/kubernetes/kubernetes/issues/57198).

*   Mutating and validating webhook configurations are continuously polled by the API server (once per second). This issue will be fixed in a future release.

  For more information, see [#56357](https://github.com/kubernetes/kubernetes/issues/56357).

Kubernetes components that accepted X.509 client certificate authentication now read the user UID from a certificate subject name RDN with object ID `1.3.6.1.4.1.57683.2`. An RDN with this object ID had to contain a string value and appear no more than once in the certificate subject. Reading the user UID from this RDN could be disabled by setting the beta feature gate `AllowParsingUserUIDFromCertAuth` to `false`(until the feature gate graduated to GA). ([#127897](https://github.com/kubernetes/kubernetes/pull/127897),...