- Kubeadm: amend the node kernel validation to treat CGROUP_PIDS, FAIR_GROUP_SCHED as required and CFS_BANDWIDTH, CGROUP_HUGETLB as optional ([#96378](https://github.com/kubernetes/kubernetes/pull/96378), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle and Node]

* kubelet initial flag parse now normalizes flags instead of exiting.  ([#61053](https://github.com/kubernetes/kubernetes/pull/61053), [@andrewsykim](https://github.com/andrewsykim))

* Fixed regression where kubelet --cpu-cfs-quota flag did not work when --cgroups-per-qos was enabled ([#61294](https://github.com/kubernetes/kubernetes/pull/61294), [@derekwaynecarr](https://github.com/derekwaynecarr))

The CustomCFSQuotaPeriod alpha feature enables node administrators to change the default period used to enforce CFS quota on a node.  This can improve performance for some workloads that experience latency while using CFS quota with the default measurement period.  Finally, the SIG continues to focus on improving reliability by fixing bugs while working out design and implementation of future features.

* Test x509 intermediates correctly ([#34524](https://github.com/kubernetes/kubernetes/pull/34524), [@liggitt](https://github.com/liggitt))
* Add `cifs-utils` to the hyperkube image. ([#34416](https://github.com/kubernetes/kubernetes/pull/34416), [@colemickens](https://github.com/colemickens))

* Fix upgrade.sh image setup ([#34468](https://github.com/kubernetes/kubernetes/pull/34468), [@mtaufen](https://github.com/mtaufen))
* Add `cifs-utils` to the hyperkube image. ([#34416](https://github.com/kubernetes/kubernetes/pull/34416), [@colemickens](https://github.com/colemickens))

  * Fixes a bug in the kubernetes-worker Juju charm code that attempted to give kube-proxy more than one api endpoint. ([#44677](https://github.com/kubernetes/kubernetes/pull/44677), [@wwwtyro](https://github.com/wwwtyro))

  * Added CIFS PV support for Juju Charms ([#45117](https://github.com/kubernetes/kubernetes/pull/45117), [@chuckbutler](https://github.com/chuckbutler))

- Aggregated discovery will be alpha and can be toggled with the `AggregatedDiscoveryEndpoint` feature flag. ([#113171](https://github.com/kubernetes/kubernetes/pull/113171), [@Jefftree](https://github.com/Jefftree))
- Clarified the CFS quota as 100ms in the code comments and set the minimum `cpuCFSQuotaPeriod` to 1ms to match Linux kernel expectations. ([#112123](https://github.com/kubernetes/kubernetes/pull/112123), [@paskal](https://github.com/paskal))