present, thus enforcing authentication / re-authentication. This means an image pull might be attempted even in cases where a pod requests the `IfNotPresent` image pull policy, and might lead to the pod not starting if its pull policy is `Never` and is unable to present authentication information that led to a previous successful pull of the image it is requesting. ([#128152](https://github.com/kubernetes/kubernetes/pull/128152), [@stlaz](https://github.com/stlaz)) [SIG API Machinery, Architecture, Auth,...

  - https://github.com/kubernetes-sigs/kustomize/pull/4954: Drop support for using gh: as a host (e.g. gh:kubernetes-sigs/kustomize). We were unable to find any usage of or basis for this and believe it may have been targeting a custom gitconfig shorthand syntax. ([#116598](https://github.com/kubernetes/kubernetes/pull/116598), [@natasha41575](https://github.com/natasha41575)) [SIG CLI]

- When image garbage collection is unable to free enough disk space, the FreeDiskSpaceFailed warning event is now more actionable. Example: `Insufficient free disk space on the node's image filesystem (95.0% of 10.0 GiB used). Failed to free sufficient space by deleting unused images. Consider...

* api-server provides specific events when unable to repair a service cluster ip or node port ([#54304](https://github.com/kubernetes/kubernetes/pull/54304), [@frodenas](https://github.com/frodenas))

- The `kubectl debug` is able to create ephemeral containers in pre-1.22 clusters with the `EphemeralContainers` feature enabled. Note that versions of kubectl prior to 1.22 are unable to create ephemeral containers in clusters version 1.22 and greater due to an API change. ([#103292](https://github.com/kubernetes/kubernetes/pull/103292), [@verb](https://github.com/verb))

* Bug fix: Clusters with GCE feature 'DiskAlphaAPI' enabled were unable to dynamically provision GCE PD volumes. ([#59447](https://github.com/kubernetes/kubernetes/pull/59447), [@verult](https://github.com/verult))



# v1.8.9

* Kubeadm will now include the missing certificate key if it is unable to find an expected key during `kubeadm join` when used with the `--experimental-control-plane` flow ([#76636](https://github.com/kubernetes/kubernetes/pull/76636), [@mdaniel](https://github.com/mdaniel))