- Fixed stale SMB mount issue when SMB file share is deleted and then unmounted. ([#121851](https://github.com/kubernetes/kubernetes/pull/121851), [@andyzhangx](https://github.com/andyzhangx))
- Fixed the bug where images that were pinned by the container runtime could be garbage collected by `kubelet`. ([#119986](https://github.com/kubernetes/kubernetes/pull/119986), [@ruiwen-zhao](https://github.com/ruiwen-zhao))

* [fluentd-gcp-scaler addon] Bump fluentd-gcp-scaler to 0.4 to pick up security fixes. ([#67691](https://github.com/kubernetes/kubernetes/pull/67691), [@loburm](https://github.com/loburm))
    * [prometheus-to-sd addon] Bump prometheus-to-sd to 0.3.1 to pick up security fixes, bug fixes and new features.
    * [event-exporter addon] Bump event-exporter to 0.2.3 to pick up security fixes.

- Fixed error handling in `EnsureAdminClusterRoleBindingImpl`.
   ([#122893](https://github.com/kubernetes/kubernetes/pull/122893), [@danwinship](https://github.com/danwinship))
- Fixed incorrect error logging for `syncCronJob`.
   ([#122493](https://github.com/kubernetes/kubernetes/pull/122493), [@mengjiao-liu](https://github.com/mengjiao-liu))

- Fixed CSI `PersistentVolumes` to allow Secrets names longer than 63 characters. ([#114776](https://github.com/kubernetes/kubernetes/pull/114776), [@jsafrane](https://github.com/jsafrane))
- Fixed Route controller to update routes when NodeIP changes ([#108095](https://github.com/kubernetes/kubernetes/pull/108095), [@lzhecheng](https://github.com/lzhecheng))

- Fixed bug in reflector that couldn't recover from "Too large resource version" errors with API servers 1.17.0-1.18.5 ([#94316](https://github.com/kubernetes/kubernetes/pull/94316), [@janeczku](https://github.com/janeczku)) [SIG API Machinery]
- Fixed the EndpointSliceController to correctly create endpoints for IPv6-only pods.
  

## Changelog since v1.17.7

## Changes by Kind

### API Change

- Fixed: log timestamps now include trailing zeros to maintain a fixed width ([#91207](https://github.com/kubernetes/kubernetes/pull/91207), [@iamchuckss](https://github.com/iamchuckss)) [SIG Apps and Node]

### Bug or Regression

    * [fluentd-gcp addon] Bump fluentd-gcp-scaler to v0.5.1 to pick up security fixes.
    * [fluentd-gcp addon] Bump event-exporter to v0.2.4 to pick up security fixes.
    * [fluentd-gcp addon] Bump prometheus-to-sd to v0.5.0 to pick up security fixes.

* [fluentd-gcp-scaler addon] Bump fluentd-gcp-scaler to 0.4 to pick up security fixes. ([#67691](https://github.com/kubernetes/kubernetes/pull/67691), [@loburm](https://github.com/loburm))
    * [prometheus-to-sd addon] Bump prometheus-to-sd to 0.3.1 to pick up security fixes, bug fixes and new features.
    * [event-exporter addon] Bump event-exporter to 0.2.3 to pick up security fixes.

- Fixed bug where Server Side Apply causes spurious resourceVersion bumps on no-op patches to custom resources. ([#125263](https://github.com/kubernetes/kubernetes/pull/125263), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery and Testing]
- Fixed bug where kubectl get with --sort-by flag does not sort strings alphanumerically. ([#124514](https://github.com/kubernetes/kubernetes/pull/124514), [@brianpursley](https://github.com/brianpursley))

### Azure

- Fixed failure to detach Azure disk when there is server side error ([#74398](https://github.com/kubernetes/kubernetes/pull/74398), [@andyzhangx](https://github.com/andyzhangx))
- Fixed subnet annotation checking for Azure internal loadbalancer ([#74498](https://github.com/kubernetes/kubernetes/pull/74498), [@feiskyer](https://github.com/feiskyer))