- Creation of new `CronJob` objects containing `TZ` or `CRON_TZ` in `.spec.schedule`, accidentally enabled in `v1.22`, is now disallowed. Use the `.spec.timeZone` field instead, supported in `v1.25+` clusters in default configurations. See https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/#unsupported-timezone-specification for more information. ([#116252](https://github.com/kubernetes/kubernetes/pull/116252), [@soltysh](https://github.com/soltysh))

Dynamic Resource Allocation (DRA) got promoted to beta. No action is required when *upgrading*, the previous v1alpha3 API is still supported, so existing deployments and DRA drivers based on v1alpha3 continue to work. *Downgrading* from 1.32 to 1.31 with DRA resources in the cluster (resourceclaims, resourceclaimtemplates, deviceclasses, resourceslices) is *not* supported because the new v1beta1 is used as storage version and not readable by 1.31. ([#127511](https://github.com/kubernetes/kubernetes/pull/127511),...

- Kubelet/stats: set INFO log level for stats not found in cadvisor memory cache error. ([#125656](https://github.com/kubernetes/kubernetes/pull/125656), [@gyuho](https://github.com/gyuho))
- Kubelet: warn instead of error for the unsupported options on Windows "CgroupsPerQOS" and "EnforceNodeAllocatable". ([#123137](https://github.com/kubernetes/kubernetes/pull/123137), [@neolit123](https://github.com/neolit123)) [SIG Node and Windows]

- When an unsupported PodDisruptionBudget configuration is found, an event and log will be emitted to inform users of the misconfiguration. ([#115861](https://github.com/kubernetes/kubernetes/pull/115861), [@JayKayy](https://github.com/JayKayy)) [SIG Apps]

- Runtime handler and Windows npipe protocol are not supported yet in crictl v1.11.x. Those features will be supported in crictl [v1.12.0](https://github.com/kubernetes-sigs/cri-tools/releases/tag/v1.12.0), together with Kubernetes v1.12.1.

## Major Themes

### SIG API Machinery

    * `kubectl delete...

        *   HostPorts are not supported.
*   An IPv6 network mask for pod or cluster cidr network must be /66 or longer. For example: 2001:db1::/66, 2001:dead:beef::/76, 2001:cafe::/118 are supported. 2001:db1::/64 is not supported

All StorageClass parameters for volume provisioning and all features supported with PersistentVolumeClaims are supported.

### Skip Volume Ownership change graduates to GA

The feature to configure volume permission and ownership change policy for Pods moved to GA in 1.23.

- As of v1.25, the PodSecurity `restricted` level no longer requires pods that set .spec.os.name="windows" to also set Linux-specific securityContext fields. If a 1.25+ cluster has unsupported [out-of-skew](https://kubernetes.io/releases/version-skew-policy/#kubelet) nodes prior to v1.23 and wants to ensure namespaces enforcing the `restricted` policy continue to require Linux-specific securityContext fields on all pods, ensure a version...

* kubeadm now produces error during preflight checks if swap is enabled. Users, who can setup kubelet to run in unsupported environment with enabled swap, will be able to skip that preflight check. ([#55399](https://github.com/kubernetes/kubernetes/pull/55399), [@kad](https://github.com/kad))