- Improved Node's QueueingHint in the `NodeAffinity` plugin by ignoring unrelated changes that keep pods unschedulable. ([#127444](https://github.com/kubernetes/kubernetes/pull/127444), [@dom4ha](https://github.com/dom4ha)) [SIG Scheduling and Testing]

  Now, when unschedulable Pods are updated, the scheduling queue checks with QueueingHint(s) whether the update may make the pods schedulable, and requeues them to activeQ/backoffQ **only when** at least one QueueingHint(s) return Queue. 
  
  Action required for custom scheduler plugin developers:

- QueueingHint implementation for NodeAffinity is reverted because we found potential scenarios where events that make Pods schedulable could be missed. ([#122285](https://github.com/kubernetes/kubernetes/pull/122285), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling]

- Graduated scheduler `QueueingHint` support to GA (general availability) ([#131973](https://github.com/kubernetes/kubernetes/pull/131973), [@sanposhiho](https://github.com/sanposhiho)) [SIG Scheduling and Testing]