* StorageClassName attribute has been added to PersistentVolume and PersistentVolumeClaim objects and should be used instead of annotation `volume.beta.kubernetes.io/storage-class`. The beta annotation is still working in this release, however it will be removed in a future release. ([#42128](https://github.com/kubernetes/kubernetes/pull/42128), [@jsafrane](https://github.com/jsafrane))

### OpenStack

In this cycle, SIG OpenStack focused on configuration simplification through smarter defaults and the use of auto-detection wherever feasible (Block Storage API versions, Security Groups) as well as updating API support, including:

*   Block Storage (Cinder) V3 is now supported.

// Each input is zero-padded to 128-bit before being absorbed. func ghash(out, H *[gcmBlockSize]byte, inputs ...[]byte) { // productTable contains the first sixteen powers of the key, H. // However, they are in bit reversed order. var productTable [16]gcmFieldElement // We precompute 16 multiples of H. However, when we do lookups // into this table we'll be using bits from a field element and // therefore the bits will be in the reverse order. So normally one // would expect, say, 4*H to be in index...

rPosition","curLeft","curCSSTop","curTop","curOffset","curCSSLeft","curElem","using","rect","win","pageYOffset","pageXOffset","offsetParent","parentOffset","scrollTo","Height","Width","","defaultExtra","funcName","unbind","delegate","undelegate","hover","fnOver","fnOut","rtrim","proxy","holdReady","hold","parseJSON","isNumeric","isNaN","trim","define","amd","_jQuery","_$","$","noConflict"],"mappings":";CAUA,SAAYA,EAAQC,GAEnB,aAEuB,iBAAXC,QAAiD,iBAAnBA,OAAOC,QAShDD,OAAOC,QAAUH,EAAOI,SACvBH,EAASD,...

- Promote VAC API test to conformance ([#133615](https://github.com/kubernetes/kubernetes/pull/133615), [@carlory](https://github.com/carlory)) [SIG Architecture, Storage and Testing]
- Remove incorrectly printed warning for SessionAffinity whenever a headless service is creater or updated ([#134054](https://github.com/kubernetes/kubernetes/pull/134054), [@Peac36](https://github.com/Peac36)) [SIG Network]

- The `apiserver_request_total` metric is promoted to stable status and no longer has a content-type dimensions, so any alerts/charts which presume the existence of this will fail. This is however, unlikely to be the case since it was effectively an unbounded dimension in the first place. ([#99788](https://github.com/kubernetes/kubernetes/pull/99788), [@logicalhan](https://github.com/logicalhan))

    * sync time.
 
    * The goal is for administrators to be able to alert on proxies that, for
    * whatever reason, are quite stale.
* Fix a string comparison bug in IPVS graceful termination where UDP real servers are not deleted. ([#78999](https://github.com/kubernetes/kubernetes/pull/78999), [@andrewsykim](https://github.com/andrewsykim))

  `sync_proxy_rules_last_timestamp_seconds` metric no longer behaves the
  way it used to; now it will only change when services or endpoints actually
  change, rather than reliably updating every 60 seconds (or whatever). If you
  are trying to monitor for whether iptables updates are failing, the

    * Force drain to use delete, even if eviction is supported. This will bypass checking PodDisruptionBudgets, and should be used with caution.
* kubeadm now errors out whenever a not supported component config version is supplied for the kubelet and kube-proxy ([#85639](https://github.com/kubernetes/kubernetes/pull/85639), [@rosti](https://github.com/rosti))

* Ensured IP is set for Azure internal load balancer. ([#59083](https://github.com/kubernetes/kubernetes/pull/59083), [@feiskyer](https://github.com/feiskyer))