* Apply unreachable taint to a node when it lost network connection. ([#67734](https://github.com/kubernetes/kubernetes/pull/67734), [@Huang-Wei](https://github.com/Huang-Wei))

- Report kube-scheduler unhealthy if leader election is deadlocked. ([#71085](https://github.com/kubernetes/kubernetes/pull/71085), [@bsalamat](https://github.com/bsalamat))
- Fixed a potential bug that scheduler preempts unnecessary pods. ([#70898](https://github.com/kubernetes/kubernetes/pull/70898), [@Huang-Wei](https://github.com/Huang-Wei))

### SIG Storage

- Fixed a scheduler racing issue to ensure low priority pods are unschedulable on the node(s) where high priority pods have `NominatedNodeName` set to the node(s).  ([#77990](https://github.com/kubernetes/kubernetes/pull/77990), [@Huang-Wei](https://github.com/Huang-Wei))

### Storage

- Fix a bug that Pods with topologySpreadConstraints get scheduled to nodes without required labels. ([#95883](https://github.com/kubernetes/kubernetes/pull/95883), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling]

- A new extension point `PostFilter` is introduced to scheduler framework which runs after Filter phase to resolve scheduling filter failures. A typical implementation is running preemption logic. ([#91314](https://github.com/kubernetes/kubernetes/pull/91314), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling and Testing]

- Fix incorrect calculation for ResourceQuota with PriorityClass as its scope. ([#117826](https://github.com/kubernetes/kubernetes/pull/117826), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG API Machinery]
- Fix: the volume is not detached after the pod and PVC objects are deleted ([#117340](https://github.com/kubernetes/kubernetes/pull/117340), [@cvvz](https://github.com/cvvz)) [SIG Storage]

- Fixed a 1.27 scheduling regression that PostFilter plugin may not function if previous PreFilter plugins return Skip ([#119943](https://github.com/kubernetes/kubernetes/pull/119943), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling and Testing]

### Storage

- Fixed scanning of failed iSCSI targets. ([#74306](https://github.com/kubernetes/kubernetes/pull/74306), [@jsafrane](https://github.com/jsafrane))

- Fixed a scheduler panic when using PodAffinity. ([#82841](https://github.com/kubernetes/kubernetes/pull/82841), [@Huang-Wei](https://github.com/Huang-Wei))
- Take the context as the first argument of Schedule. ([#82119](https://github.com/kubernetes/kubernetes/pull/82119), [@wgliang](https://github.com/wgliang))

 - The `CSIMigrationVSphereComplete` feature flag is removed. `InTreePluginvSphereUnregister` will be the way moving forward. ([#101272](https://github.com/kubernetes/kubernetes/pull/101272), [@Jiawei0227](https://github.com/Jiawei0227))...