`volume_manager_total_volumes`
  ([#84907](https://github.com/kubernetes/kubernetes/pull/84907), [@RainbowMango](https://github.com/RainbowMango))
- Deprecated metric `rest_client_request_latency_seconds` has been turned off. ([#83836](https://github.com/kubernetes/kubernetes/pull/83836), [@RainbowMango](https://github.com/RainbowMango))
- Following metrics from kubelet are now marked as with the ALPHA stability level:
  `node_cpu_usage_seconds_total`

* genericapiserver: cut off pkg/serviceaccount dependency ([#39945](https://github.com/kubernetes/kubernetes/pull/39945), [@sttts](https://github.com/sttts))
* genericapiserver: cut off pkg/apis/extensions and pkg/storage dependencies ([#39946](https://github.com/kubernetes/kubernetes/pull/39946), [@sttts](https://github.com/sttts))

- The job controller back-off logic is now decoupled from workqueue. In case of parallelism > 1, if there are multiple new failures in a reconciliation cycle, all the failures are taken into account to compute the back-off. Previously, the back-off kicked in for all types of failures; with this change, only pod failures are taken into account. If the back-off limits exceeds, the job is marked as failed immediately; before this change, the job...

- Promote CSIMigrationOpenStack to Beta (off by default since it requires installation of the OpenStack Cinder CSI Driver. The in-tree AWS OpenStack Cinder driver "kubernetes.io/cinder" was deprecated in 1.16 and will be removed in 1.20. Users should enable CSIMigration + CSIMigrationOpenStack...

- Append the image pull error for the pods `status.containerStatuses[*].state.waiting.message` when
  in image pull back-off (`reason` is `ImagePullBackOff`) instead of the generic `Back-off pulling image…` message. ([#127918](https://github.com/kubernetes/kubernetes/pull/127918), [@saschagrunert](https://github.com/saschagrunert)) [SIG Node and Testing]

- Changed how KMS v2 encryption at rest can generate data encryption keys. When you enable the `KMSv2KDF` feature gate (off by default), KMS v2 uses a key derivation function to generate single use data...

## Changelog since v1.31.0

## Changes by Kind

### Deprecation

- SELinuxChangePolicy and SELinuxMount graduated to Beta. SELinuxMount stays off by default. ([#130544](https://github.com/kubernetes/kubernetes/pull/130544), [@jsafrane](https://github.com/jsafrane)) [SIG Auth, Node and Storage]

* fix the error prone account creation method of blob disk ([#59739](https://github.com/kubernetes/kubernetes/pull/59739), [@andyzhangx](https://github.com/andyzhangx))
* The webhook admission controller in a custom apiserver now works off-the-shelf. ([#60995](https://github.com/kubernetes/kubernetes/pull/60995), [@caesarxuchao](https://github.com/caesarxuchao))

- Disabled a previously on-by-default optimization for the API server where each **watch** response used a dedicated goroutine. The `APIServingWithRoutine` feature gate has been demoted from beta to alpha, and is now off by default. ([#126481](https://github.com/kubernetes/kubernetes/pull/126481), [@benluddy](https://github.com/benluddy)) [SIG API Machinery]