The type parameter names do not need to match their corresponding parameter names in the
receiver base type definition, and all non-blank parameter names must be unique in the
receiver parameter section and the method signature.
The receiver type parameter constraints are implied by the receiver base type definition:
corresponding type parameters have corresponding constraints.
</p>

<pre>
type Pair[A, B any] struct {

message PreferredSchedulingTerm {
  // Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.
  optional int32 weight = 1;

  // A node selector term, associated with the corresponding weight.
  optional NodeSelectorTerm preference = 2;
}

  1. the count of ready pods is less or equal than active
  2. when transitioning to terminal phase for Job, the number of terminating pods is 0
  3. terminal Job conditions (Failed and Complete) should be preceded by adding the corresponding interim conditions: FailureTarget and SuccessCriteriaMet ([#125510](https://github.com/kubernetes/kubernetes/pull/125510), [@mimowo](https://github.com/mimowo)) [SIG Apps and Testing]

### Alpha

- Introduce a new admission controller for RuntimeClass. Initially, RuntimeClass will be used to apply the pod overhead associated with a given RuntimeClass to the Pod `spec` if a corresponding RuntimeClassName is specified. PodOverhead is an alpha feature as of Kubernetes 1.16. ([#78484](https://github.com/kubernetes/kubernetes/pull/78484), [@egernst](https://github.com/egernst))

- The following features are unconditionally enabled and the corresponding `--feature-gates` flags have been removed: `PodPriority`, `TaintNodesByCondition`, `ResourceQuotaScopeSelectors` and `ScheduleDaemonSetPods` ([#86210](https://github.com/kubernetes/kubernetes/pull/86210), [@draveness](https://github.com/draveness))...

* Fix a bug in the IPVS proxier where virtual servers are not cleaned up even though the corresponding Service object was deleted. ([#80942](https://github.com/kubernetes/kubernetes/pull/80942), [@gongguan](https://github.com/gongguan))

- Fix a bug on the endpoint slices mirroring controller where endpoint NotReadyAddresses were mirrored as Ready to the corresponding EndpointSlice ([#102683](https://github.com/kubernetes/kubernetes/pull/102683), [@aojea](https://github.com/aojea)) [SIG Apps and Network]

- Take the context as the first argument of Schedule. ([#82119](https://github.com/kubernetes/kubernetes/pull/82119), [@wgliang](https://github.com/wgliang))
- Fixed an issue that the correct PluginConfig.Args is not passed to the corresponding PluginFactory in kube-scheduler when multiple PluginConfig items are defined. ([#82483](https://github.com/kubernetes/kubernetes/pull/82483), [@everpeace](https://github.com/everpeace))

- Setting a mirror pod's phase to Succeeded or Failed can prevent the corresponding static pod from restarting due mutation of a Kubelet cache. ([#116482](https://github.com/kubernetes/kubernetes/pull/116482), [@smarterclayton](https://github.com/smarterclayton)) [SIG Node]

### Other (Cleanup or Flake)

* `cluster/kube-up.sh` now provisions a Kubelet config file for GCE via the metadata server. This file is installed by the corresponding GCE init scripts. ([#62183](https://github.com/kubernetes/kubernetes/pull/62183), [@mtaufen](https://github.com/mtaufen))