### API Change

- Kubernetes 1.23 is now built with go1.19.4. To match behavior of previous Kubernetes 1.23 patch releases:
  - `kube-apiserver` defaults the GOGC setting to 63, to approximate go1.17 garbage collection memory performance in heavily loaded API servers

- github.com/moby/sys/atomicwriter: [v0.1.0](https://github.com/moby/sys/tree/atomicwriter/v0.1.0)
- github.com/tidwall/gjson: [v1.18.0](https://github.com/tidwall/gjson/tree/v1.18.0)
- github.com/tidwall/match: [v1.1.1](https://github.com/tidwall/match/tree/v1.1.1)
- github.com/tidwall/pretty: [v1.2.1](https://github.com/tidwall/pretty/tree/v1.2.1)
- github.com/tidwall/sjson: [v1.2.5](https://github.com/tidwall/sjson/tree/v1.2.5)

* Federation: Add `batch/jobs` API objects to federation-apiserver ([#35943](https://github.com/kubernetes/kubernetes/pull/35943), [@jianhuiz](https://github.com/jianhuiz))

* Fix inter-pod anti-affinity check to consider a pod a match when all the anti-affinity terms match. ([#62715](https://github.com/kubernetes/kubernetes/pull/62715), [@bsalamat](https://github.com/bsalamat))

### Action Required

* Added cadvisor metric labels `pod` and `container` where `pod_name` and `container_name` are present to match instrumentation guidelines. ([#69099](https://github.com/kubernetes/kubernetes/pull/69099), [@ehashman](https://github.com/ehashman))

- Kube-apiserver: fixes a 1.27+ regression in watch stability by serving watch requests without a resourceVersion from the watch cache by default, as in <1.27 (disabling the change in #115096 by default). This mitigates the impact of an etcd watch bug (https://github.com/etcd-io/etcd/pull/17555). If the 1.27 change in #115096 to serve these requests from underlying storage is still desired despite the impact on watch stability, it can be re-enabled with a `WatchFromStorageWithoutResourceVersion`...

- Reverted graceful node shutdown to match 1.21 behavior of setting pods that have not yet successfully completed to "Failed" phase if the GracefulNodeShutdown feature is enabled in kubelet. The GracefulNodeShutdown feature is beta and must be explicitly configured via kubelet config to be enabled in 1.21+. This changes 1.22 and 1.23 behavior on node shutdown to match 1.21. If you do not want pods to be marked terminated on node shutdown in 1.22 and 1.23,...

- Changed the error message displayed when a pod is trying to attach a volume that does not match the label/selector from "x node(s) had volume node affinity conflict" to "x node(s) didn't match PersistentVolume's node affinity". ([#129887](https://github.com/kubernetes/kubernetes/pull/129887), [@rhrmo](https://github.com/rhrmo)) [SIG Scheduling and Storage]

  the following metrics had their name updated to match metrics API guidelines:
    - `cronjob_job_creation_skew_duration_seconds` -> `job_creation_skew_duration_seconds`.' ([#113008](https://github.com/kubernetes/kubernetes/pull/113008), [@soltysh](https://github.com/soltysh))
- 'Promoted job-related metrics to stable to follow IndexedJobs GA. The following metrics have their name updated to match metrics API guidelines:

 - The `batch/v2alpha1.CronJob` is deprecated in favor of `batch/v1beta1`.

 - The `batch/v2alpha1.ScheduledJob` was removed. Use `batch/v1beta1.CronJob` instead.

### Auth

 - The RBAC v1alpha1 API group is deprecated in favor of RBAC v1.