- Introduced the `scheduling.k8s.io/v1alpha1` Workload API to express workload-level scheduling requirements and allow the kube-scheduler to act on them. ([#134564](https://github.com/kubernetes/kubernetes/pull/134564), [@macsko](https://github.com/macsko)) [SIG API Machinery, Apps, CLI, Etcd, Scheduling and Testing]

- Fixed the issue where pod with ordinal number lower than the rolling partitioning number was being deleted it was coming up with updated image. ([#120731](https://github.com/kubernetes/kubernetes/pull/120731), [@adilGhaffarDev](https://github.com/adilGhaffarDev)) [SIG Apps and Testing]

### Deprecation

#### kube-apiserver:
- the following deprecated APIs can no longer be served:
  - All resources under `apps/v1beta1` and `apps/v1beta2` - use `apps/v1` instead
  - `daemonsets`, `deployments`, `replicasets` resources under `extensions/v1beta1` - use `apps/v1` instead
  - `networkpolicies` resources under `extensions/v1beta1` - use `networking.k8s.io/v1` instead

- Added a `.status.features.supplementalGroupsPolicy` field to Nodes. The field is true when the feature is implemented in the CRI implementation (KEP-3619). ([#125470](https://github.com/kubernetes/kubernetes/pull/125470), [@everpeace](https://github.com/everpeace)) [SIG API Machinery, Apps, Node and Testing]

- Move Recover from volume expansion failure GA ([#132662](https://github.com/kubernetes/kubernetes/pull/132662), [@gnufied](https://github.com/gnufied)) [SIG Apps, Auth, Node, Storage and Testing]
- PodLifecycleSleepAction is graduated to GA ([#132595](https://github.com/kubernetes/kubernetes/pull/132595), [@AxeZhan](https://github.com/AxeZhan)) [SIG Apps, Node and Testing]

- Fix validation for Job with suspend=true, and completions=0 to set the Complete condition. ([#132727](https://github.com/kubernetes/kubernetes/pull/132727), [@mimowo](https://github.com/mimowo)) [SIG Apps and Testing]

- StatefulSet pods now have the pod index set as a pod label `apps.kubernetes.io/pod-index`. ([#119232](https://github.com/kubernetes/kubernetes/pull/119232), [@danielvegamyhre](https://github.com/danielvegamyhre)) [SIG Apps]

- Kube-controller-manager: Resolves potential issues handling pods with incorrect uids in their ownerReference ([#134662](https://github.com/kubernetes/kubernetes/pull/134662), [@liggitt](https://github.com/liggitt)) [SIG Apps]

- Fixed garbage collection of dangling VolumeAttachments for PersistentVolumes migrated to CSI on startup of kube-controller-manager. ([#102176](https://github.com/kubernetes/kubernetes/pull/102176), [@timebertt](https://github.com/timebertt)) [SIG Apps and Storage]

- Fixed garbage collection of dangling VolumeAttachments for PersistentVolumes migrated to CSI on startup of kube-controller-manager. ([#102176](https://github.com/kubernetes/kubernetes/pull/102176), [@timebertt](https://github.com/timebertt)) [SIG Apps and Storage]