that denies admission based at least partially on the old state of the
Node object.

**Note**: This only impacts validating admission plugins that rely on old
values in certain fields, and does not impact calls from kubelets that go
through the built-in NodeRestriction admission plugin.

**Affected Versions**:
  - kube-apiserver v1.20.0 - v1.20.5
  - kube-apiserver v1.19.0 - v1.19.9

 - Reduced state change noise when volume expansion fails. Also mark certain failures as infeasible.
  
  ACTION REQUIRED:  If you are using the `RecoverVolumeExpansionFailure` alpha feature gate
  then after upgrading to this release, you need to update some objects.

* Address a bug which allowed the horizontal pod autoscaler to allocate `desiredReplicas` > `maxReplicas` in certain instances. ([#53690](https://github.com/kubernetes/kubernetes/pull/53690), [@mattjmcnaughton](https://github.com/mattjmcnaughton))

  * This will ensure certain commands in 1.5 versions of kubectl continue function when run against a 1.6 server. (e.g. `kubectl edit deployment`)
* Taint

- kubeadm: Now allows certain certs/keys to be missing on the secret when transferring secrets using `--experimental-upload-certs` feature ([#75415](https://github.com/kubernetes/kubernetes/pull/75415), [@ereslibre](https://github.com/ereslibre))

### GCP

- Kube-log-runner: Added the `-log-file-size` parameter to rotate log output into a new file once it reached a certain size. Introduced `-log-file-age` to enable automatic removal of old output files, and `-flush-interval` to support periodic flushing. ([#127667](https://github.com/kubernetes/kubernetes/pull/127667), [@zylxjtu](https://github.com/zylxjtu)) [SIG API...

* The kubelet's `--cloud-provider=auto-detect` feature has been removed; make certain to specify the cloud provider. ([#56287](https://github.com/kubernetes/kubernetes/pull/56287), [@stewart-yu](https://github.com/stewart-yu))

- Fixed bug where using the $deleteFromPrimitiveList directive in a strategic merge patch of certain fields would remove the other values from the list instead of the values specified. ([#110472](https://github.com/kubernetes/kubernetes/pull/110472), [@brianpursley](https://github.com/brianpursley)) [SIG API Machinery]

* Address a bug which allowed the horizontal pod autoscaler to allocate `desiredReplicas` > `maxReplicas` in certain instances. ([#53690](https://github.com/kubernetes/kubernetes/pull/53690), [@mattjmcnaughton](https://github.com/mattjmcnaughton))

- When a PreFilterResult filters out certain Nodes, the scheduling framework now categorizes them as rejected via `UnschedulableAndUnresolvable`. Consequently, these nodes are excluded from the candidates for the preemption process. Additionally, this update corrects how the scheduling framework...