### Feature

- A new client side metric `rest_client_request_retries_total` has been added that tracks the number of retries sent to the server, partitioned by status code, verb and host ([#108396](https://github.com/kubernetes/kubernetes/pull/108396), [@tkashem](https://github.com/tkashem))

* fix apps DeploymentSpec conversion issue ([#49719](https://github.com/kubernetes/kubernetes/pull/49719), [@dixudx](https://github.com/dixudx))
* fluentd-gcp addon: Fix a bug in the event-exporter, when repeated events were not sent to Stackdriver. ([#50511](https://github.com/kubernetes/kubernetes/pull/50511), [@crassirostris](https://github.com/crassirostris))

- Set metrics-server's metric-resolution to 15s. ([#117121](https://github.com/kubernetes/kubernetes/pull/117121), [@dgrisonnet](https://github.com/dgrisonnet)) [SIG Cloud Provider and Instrumentation]
- SubjectAccessReview requests sent to webhook authorizers now default `spec.resourceAttributes.version` to `*` if unset. ([#116937](https://github.com/kubernetes/kubernetes/pull/116937), [@AxeZhan](https://github.com/AxeZhan)) [SIG Apps and Auth]

- `CSINodeExpandSecret` feature has been promoted to `GA` in this release and is enabled
  by default. The CSI drivers can make use of the `secretRef` values passed in `NodeExpansion`
  request optionally sent by the CSI Client from this release onwards. ([#121303](https://github.com/kubernetes/kubernetes/pull/121303), [@humblec](https://github.com/humblec))