- kubeadm reset: unmount directories under `/var/lib/kubelet` for Linux only ([#81494](https://github.com/kubernetes/kubernetes/pull/81494), [@Klaven](https://github.com/Klaven))

- Fixed kubelet startup getting stuck with `NewVolumeManagerReconstruction` feature enabled and a CSI volume present in /var/lib/kubelet/pods. ([#117804](https://github.com/kubernetes/kubernetes/pull/117804), [@jsafrane](https://github.com/jsafrane)) [SIG Node and Storage]

## Changelog since v1.14.3

### Other notable changes

* fix kubelet fail to delete orphaned pod directory when the kubelet's pods directory (default is "/var/lib/kubelet/pods") symbolically links to another disk device's directory ([#79094](https://github.com/kubernetes/kubernetes/pull/79094), [@gaorong](https://github.com/gaorong))

* Made multi-scheduler graduated to Beta and then v1. ([#38871](https://github.com/kubernetes/kubernetes/pull/38871), [@k82cn](https://github.com/k82cn))
* Fixed forming resolver search line for pods: exclude duplicates, obey libc limitations, logging and eventing appropriately. ([#29666](https://github.com/kubernetes/kubernetes/pull/29666), [@vefimova](https://github.com/vefimova))

* fix kubelet fail to delete orphaned pod directory when the kubelet's pods directory (default is "/var/lib/kubelet/pods") symbolically links to another disk device's directory ([#79094](https://github.com/kubernetes/kubernetes/pull/79094), [@gaorong](https://github.com/gaorong))

field or the `--cri-socket` CLI flag. Automatically add a missing URL scheme to the user configuration in memory, but warn them that they should also update their configuration on disk manually. During `kubeadm upgrade apply/node` mutate the `/var/lib/kubelet/kubeadm-flags.env` file on disk and the `kubeadm.alpha.kubernetes.io/cri-socket` annotation Node object if needed. These automatic actions are temporary and will be removed in a future release. In the future the kubelet may not support CRI endpoints...

- kubeadm: if the `NodeLocalCRISocket` feature gate is enabled, remove the flag `--container-runtime-endpoint` from the `/var/lib/kubelet/kubeadm-flags.env` file on `kubeadm upgrade`. ([#129278](https://github.com/kubernetes/kubernetes/pull/129278), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG Cluster Lifecycle]

- Fixed cleanup of block devices when /var/lib/kubelet is a symlink. ([#96889](https://github.com/kubernetes/kubernetes/pull/96889), [@jsafrane](https://github.com/jsafrane)) [SIG Storage]

- Add mechanism to load simple sniffer class into fluentd-elasticsearch image ([#92853](https://github.com/kubernetes/kubernetes/pull/92853), [@cosmo0920](https://github.com/cosmo0920))
- Add support for Portworx plugin to csi-translation-lib. Alpha release
  
  Portworx CSI driver is required to enable migration.
  This PR adds support of the `CSIMigrationPortworx` feature gate, which can be enabled by:
  

- 'kubeadm: fixed a regression where the KubeletConfiguration is not properly
  downloaded during "kubeadm upgrade" command from the kube-system/kubelet-config
  ConfigMap, resulting in the local ''/var/lib/kubelet/config.yaml'' file being
  written as a defaulted config.' ([#124480](https://github.com/kubernetes/kubernetes/pull/124480), [@neolit123](https://github.com/neolit123))