* Fixes issue where you could not mount NFS or glusterFS volumes using hostnames on GCI/GKE with COS images. ([#42376](https://github.com/kubernetes/kubernetes/pull/42376), [@jingxu97](https://github.com/jingxu97))

* GZip openapi schema if accepted by client ([#48151](https://github.com/kubernetes/kubernetes/pull/48151), [@apelisse](https://github.com/apelisse))
* Fixes issue where you could not mount NFS or glusterFS volumes using hostnames on GCI/GKE with COS images. ([#42376](https://github.com/kubernetes/kubernetes/pull/42376), [@jingxu97](https://github.com/jingxu97))

### SIG Cloud Provider

- The cloudstack cloud provider now reports a `Hostname` address type for nodes based on the `local-hostname` metadata key. ([#67719](https://github.com/kubernetes/kubernetes/pull/67719), [@liggitt](https://github.com/liggitt))

### Service
* The 'endpoints.beta.kubernetes.io/hostnames-map' annotation is no longer supported.  Users can use the 'Endpoints.subsets[].addresses[].hostname' field instead. ([#39284](https://github.com/kubernetes/kubernetes/pull/39284), [@bowei](https://github.com/bowei))

### StatefulSet

    - [<code>kubectl debug</code> graduates to Beta](#kubectl-debug-graduates-to-beta)
    - [Removing deprecated flags in kubeadm](#removing-deprecated-flags-in-kubeadm)
    - [Pod Hostname as FQDN graduates to Beta](#pod-hostname-as-fqdn-graduates-to-beta)
    - [<code>TokenRequest</code> / <code>TokenRequestProjection</code> graduates to General Availability](#tokenrequest--tokenrequestprojection-graduates-to-general-availability)

* Webhook client credentials configured with `--admission-control-config-file` must include non-default ports in the configured hostnames. For example, a webhook configured to speak to port 8443 on service `mysvc` in namespace `myns` would specify client credentials in a stanza with `name: mysvc.myns.svc:8443`. See https://kubernetes.io/docs/reference/access-authn-authz/extensible...

// onion : https://tools.ietf.org/html/rfc7686
onion

// org : https://www.iana.org/domains/root/db/org.html
org

// pa : http://www.nic.pa/
// Some additional second level "domains" resolve directly as hostnames, such as
// pannet.pa, so we add a rule for "pa".
pa
ac.pa
gob.pa
com.pa
org.pa
sld.pa
edu.pa
net.pa
ing.pa
abo.pa
med.pa
nom.pa

### SIG Network

- Corrected family type (inet6) for ipsets in ipv6-only clusters ([#68436](https://github.com/kubernetes/kubernetes/pull/68436), [@uablrek](https://github.com/uablrek))
- kube-proxy argument `hostname-override` can be used to override hostname defined in the configuration file ([#69340](https://github.com/kubernetes/kubernetes/pull/69340), [@stevesloka](https://github.com/stevesloka))

- Fix panic in kubelet when running IPv4/IPv6 dual-stack mode with a CNI plugin ([#82508](https://github.com/kubernetes/kubernetes/pull/82508), [@aanm](https://github.com/aanm))
- EndpointSlice hostname is now set in the same conditions Endpoints hostname is. ([#84207](https://github.com/kubernetes/kubernetes/pull/84207), [@robscott](https://github.com/robscott))

*   The kubeadm `--skip-preflight-checks` flag is now deprecated and will be removed in a future release.
*   If you are using the cloud provider API to determine the external host address of the apiserver, set `--external-hostname` explicitly instead. The cloud provider detection has been deprecated and will be removed in the future ([#54516](https://github.com/kubernetes/kubernetes/pull/54516),[ @dims](https://github.com/dims))

### **Multicluster**