* `kubectl api-versions` now always fetches information about enabled API groups and versions instead of using the local cache. ([#48016](https://github.com/kubernetes/kubernetes/pull/48016), [@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]

- 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 an issue with stuck connections handling error responses ([#71419](https://github.com/kubernetes/kubernetes/pull/71419), [@liggitt](https://github.com/liggitt))



# v1.12.3

[Documentation](https://docs.k8s.io)

## Downloads for v1.12.3

* Update crictl to v1.11.1. ([#66152](https://github.com/kubernetes/kubernetes/pull/66152), [@Random-Liu](https://github.com/Random-Liu))
* kubectl: fixes a panic displaying pods with nominatedNodeName set ([#66406](https://github.com/kubernetes/kubernetes/pull/66406), [@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]

  - 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))

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