* In-tree support for openstack credentials is now deprecated. please use the "client-keystone-auth" from the cloud-provider-openstack repository. details on how to use this new capability is documented [here](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/using-client-keystone-auth.md) ([#64346](https://github.com/kubernetes/kubernetes/pull/64346), [@dims](https://github.com/dims))

* **[stable]** Volume plugin for ScaleIO enabling pods to seamlessly access and use data stored on Dell EMC ScaleIO volumes.
* **[stable]** Volume plugin for Portworx added capability to use [Portworx](http://www.portworx.com) as a storage provider for Kubernetes clusters. Portworx pools server capacity and turns servers or cloud instances into converged, highly available compute and storage nodes.

    - [CLI](#cli-1)
    - [Cluster Lifecycle](#cluster-lifecycle)
    - [GCP](#gcp)
    - [Instrumentation](#instrumentation)
    - [Node](#node-1)
    - [OpenStack](#openstack-1)
    - [Scalability](#scalability)
    - [Storage](#storage-1)
    - [Windows](#windows-1)
    - [Autoscaling](#autoscaling)
    - [API-Machinery](#api-machinery-1)
    - [Network](#network-1)
    - [Azure](#azure-1)

- Bump node-problem-detector version to v0.8.5 to fix OOM detection in with Linux kernels 5.1+ ([#96716](https://github.com/kubernetes/kubernetes/pull/96716), [@tosi3k](https://github.com/tosi3k)) [SIG Cloud Provider, Scalability and Testing]

- Reduce critical section in watchcache to fix kube-apiserver scalability under heavy load of list requests ([#122027](https://github.com/kubernetes/kubernetes/pull/122027), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery]

## Dependencies

### Added
_Nothing has changed._

- Added jitter factor to lease controller that better smears load on kube-apiserver over time. ([#101652](https://github.com/kubernetes/kubernetes/pull/101652), [@marseel](https://github.com/marseel)) [SIG API Machinery and Scalability]
- Avoid caching the Azure VMSS instances whose network profile is nil ([#100948](https://github.com/kubernetes/kubernetes/pull/100948), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

## Dependencies

### Added
_Nothing has changed._

### Changed
- sigs.k8s.io/apiserver-network-proxy/konnectivity-client: v0.0.27 → v0.0.30

### Removed
_Nothing has changed._

- Improved PVC Protection Controller's scalability by batch-processing PVCs by namespace with lazy live pod listing. ([#125372](https://github.com/kubernetes/kubernetes/pull/125372), [@hungnguyen243](https://github.com/hungnguyen243)) [SIG Apps, Node, Storage and Testing]

 - Kubelet:  removed the deprecated flag `--cloud-config` from the command line. ([#130161](https://github.com/kubernetes/kubernetes/pull/130161), [@carlory](https://github.com/carlory)) [SIG Cloud Provider, Node and Scalability]

- CephRBD volume plugin ( `kubernetes.io/rbd`) was removed in this release. And its csi migration support was also removed, so the `rbd` volume type became non-functional. Alternative is to use RBD CSI driver (https:...