that need to run prior to the network being ready.
* **Enhance Kubelet QoS**:
  * Pods are placed under a new cgroup hierarchy by default. This feature requires
    draining and restarting the node as part of upgrades. To opt-out set
    `--cgroups-per-qos=false`.
  * If `kube-reserved` and/or `system-reserved` are specified, node allocatable

- The topology manager aligns resources for pods of all QoS classes with respect to NUMA locality, not just Guaranteed QoS pods. ([#83492](https://github.com/kubernetes/kubernetes/pull/83492), [@ConnorDoyle](https://github.com/ConnorDoyle))

You can now bind tokens to service requests. ([ref](https://github.com/kubernetes/enhancements/issues/542))

  // +optional
  repeated ContainerStatus containerStatuses = 8;

  // The Quality of Service (QOS) classification assigned to the pod based on resource requirements
  // See PodQOSClass type for available QOS classes
  // More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-qos/#quality-of-service-classes
  // +optional
  optional string qosClass = 9;

- Introducing Memory quality of service support with `cgroups v2 (Alpha)`. The `MemoryQoS` feature is now in Alpha. This allows `kubelet` running with `cgroups v2` to set memory QoS at container, pod and QoS level to protect and guarantee better memory quality. This feature can be enabled through feature gate Memory QoS. ([#102970](https://github.com/kubernetes/kubernetes/pull/102970), [@borgerli](https://github.com/borgerli))

  Burstable QoS pods. For Best-Effort/Guaranteed QoS pods, swap would be disabled.
  
  Containers with memory requests equal to their memory limits also won't have
  swap access, and it is a way to opt-out of swap for a single container.
  
  The formula for the swap limit for Burstable QoS pods is:
  `(<memory-request>/<node-memory-capacity>)*<node-swap-capacity>`.
  

- Secure serving on port 10258 to...

* 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))

* Fix init container status reporting when active deadline is exceeded. ([#46305](https://github.com/kubernetes/kubernetes/pull/46305), [@sjenning](https://github.com/sjenning))

* Moved qos to api.helpers. ([#44906](https://github.com/kubernetes/kubernetes/pull/44906), [@k82cn](https://github.com/k82cn))

### Bug or Regression

- Fix a scheduler preemption issue where the victim pod was not deleted due to incorrect status patching. This issue occurred when the preemptor and victim pods had different QoS classes in their status, causing the preemption to fail entirely. ([#126694](https://github.com/kubernetes/kubernetes/pull/126694), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling]