- apiserver: fixed handling and logging of panics in REST handlers ([#71076](https://github.com/kubernetes/kubernetes/pull/71076), [@liggitt](https://github.com/liggitt))
- kube-controller-manager no longer removes ownerReferences from ResourceQuota objects ([#70035](https://github.com/kubernetes/kubernetes/pull/70035), [@liggitt](https://github.com/liggitt))

- Fixes conversion error in multi-version custom resources that could cause metadata.generation to increment on no-op patches or updates of a custom resource. ([#88995](https://github.com/kubernetes/kubernetes/pull/88995), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

  - The /swagger.json and /swagger-2.0.0.pb-v1 schema documents, deprecated since v1.10, have been removed in favor of `/openapi/v2` ([#73148](https://github.com/kubernetes/kubernetes/pull/73148), [@liggitt](https://github.com/liggitt))

* Fixed encryption key and encryption provider rotation ([#58375](https://github.com/kubernetes/kubernetes/pull/58375), [@liggitt](https://github.com/liggitt))

* Fixes discovery information for scale subresources in the apps API group ([#54683](https://github.com/kubernetes/kubernetes/pull/54683), [@liggitt](https://github.com/liggitt))

* Fixes ability for admin/edit/view users to see controller revisions, needed for kubectl rollout commands ([#70699](https://github.com/kubernetes/kubernetes/pull/70699), [@liggitt](https://github.com/liggitt))

- Fixes an issue that can result in namespaced custom resources being orphaned when their namespace is deleted, if the CRD defining the custom resource is removed concurrently with namespaces being deleted, then recreated. ([#93790](https://github.com/kubernetes/kubernetes/pull/93790), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Apps]

* Fixes an issue with upgrade requests made via pod/service/node proxy subresources sending a non-absolute HTTP request-uri to backends ([#52065](https://github.com/kubernetes/kubernetes/pull/52065), [@liggitt](https://github.com/liggitt))

- Fixes issue with websocket-based watches of Service objects not closing correctly on timeout ([#102541](https://github.com/kubernetes/kubernetes/pull/102541), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]

## Dependencies

### Added
_Nothing has changed._

- Fixes the `should support building a client with a CSR` E2E test to work with clusters configured with short certificate lifetimes ([#105396](https://github.com/kubernetes/kubernetes/pull/105396), [@liggitt](https://github.com/liggitt))