- Kubelet pod resources API now provides the information about active pods only. ([#79409](https://github.com/kubernetes/kubernetes/pull/79409), [@takmatsu](https://github.com/takmatsu)) [SIG Node]

- Fixed an issue related to not draining all the pods in a namespace when an empty selector, i.e., "{}," is specified in a Pod Disruption...

### Bug or Regression

- Consider only plugin directory and not entire kubelet root when cleaning up mounts ([#112921](https://github.com/kubernetes/kubernetes/pull/112921), [@mattcary](https://github.com/mattcary)) [SIG Storage]

for interrupting the StatefulSet Pod management is now ignored. StatefulSets with this annotation set to `true` or with no value will behave just as they did in previous versions. Dormant StatefulSets with the annotation set to `false` will become active after upgrading.

* The CronJob object is now enabled by default at `v1beta1`. CronJob `v2alpha1` is still available, but it must be explicitly enabled. We recommend that you move any current CronJob objects to `batch/v1beta1.CronJob`....

"strategic merge patch"-type API requests for the `selector` field. Prior to 1.21, these requests would merge `matchLabels` content and replace `matchExpressions` content. In 1.21, patch requests touching the `selector` field started replacing the entire selector. This is consistent with server-side apply and the v1 PodDisruptionBudget behavior, but should not have been changed for v1beta1. ([#108141](https://github.com/kubernetes/kubernetes/pull/108141), [@liggitt](https://github.com/liggitt)) [SIG...

- Kubelet podresources API now provides the information about active pods only. ([#79409](https://github.com/kubernetes/kubernetes/pull/79409), [@takmatsu](https://github.com/takmatsu)) [SIG Node]

ull/59883), [@kow3ns](https://github.com/kow3ns))

* MountPropagation feature is now beta. As a consequence, all volume mounts in containers are now `rslave` on Linux by default. To make this default work in all Linux environments the entire mount tree should be marked as shareable, e.g. via `mount --make-rshared /`. All Linux distributions that use systemd already have the root directory mounted as rshared and hence they need not do anything. In Linux environments without systemd we...

*.cloudera.site
*.cn-north-1.airflow.amazonaws.com.cn
*.cn-northwest-1.airflow.amazonaws.com.cn
*.cns.joyent.com
*.code.run
*.compute-1.amazonaws.com
*.compute.amazonaws.com
*.compute.amazonaws.com.cn
*.compute.estate
*.cryptonomic.net
*.customer-oci.com
*.d.crm.dev
*.database.run
*.dev-builder.code.com
*.dev.adobeaemcloud.com
*.developer.app
*.digitaloceanspaces.com
*.dweb.link
*.elb.amazonaws.com

 - Kubeadm respects resolvConf value set by user even if systemd-resolved service is active. kubeadm no longer sets the flag in '--resolv-conf' in /var/lib/kubelet/kubeadm-flags.env. If you have this flag in /var/lib/kubelet/kubeadm-flags.env or /etc/default/kubelet (/etc/sysconfig/kubelet for RPMs) please remove it and set the value using...

- Adopted a new implementation of watch caches for **list** verbs, using a btree data structure. The new implementation is active by default; you can opt out by disabling the `BtreeWatchCache` feature gate. ([#128415](https://github.com/kubernetes/kubernetes/pull/128415), [@serathius](https://github.com/serathius)) [SIG API Machinery, Auth and Cloud Provider]