- Kube-proxy: delete stale...

* kubeadm now configures the etcd liveness probe correctly when etcd is listening on all interfaces ([#64670](https://github.com/kubernetes/kubernetes/pull/64670), [@stealthybox](https://github.com/stealthybox))

- Improved the scalability of the PVC Protection Controller by batch-processing PVCs by namespace and implementing lazy live pod listing. ([#126745](https://github.com/kubernetes/kubernetes/pull/126745), [@hungnguyen243](https://gith...

- Missing directories listed in a user's PATH are no longer considered errors and are instead logged by the `kubectl plugin list` command when listing available plugins. ([#73542](https://github.com/kubernetes/kubernetes/pull/73542), [@juanvallejo](https://github.com/juanvallejo))
- Now users can get object info like:

  ```bash

- Alpha support for field selectors on custom resources has been added. With the `CustomResourceFieldSelectors` feature gate enabled, the CustomResourceDefinition API now allows specifying `selectableFields`. Listing a field there enables filtering custom resources for that CustomResourceDefinition in list or watch requests. ([#122717](https://github.com/kubernetes/kubernetes/pull/122717), [@jpbetz](https://github.com/jpbetz))

### Service
* Endpoints, that tolerate unready Pods, are now listing Pods in state Terminating as well ([#37093](https://github.com/kubernetes/kubernetes/pull/37093), [@simonswine](https://github.com/simonswine))

- Added a condition `NonStructuralSchema` to `CustomResourceDefinition` listing Structural Schema violations as defined in the [KEP](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/20190425-structural-openapi.md). CRD authors should update their validation schemas to be structural in order to participate...

### SIG Apps

- The resource version option, when passed to a list call, is now consistently interpreted as the minimum allowed resource version.  Previously when listing resources that had the watch cache disabled clients could retrieve a snapshot at that exact resource version.  If the client requests a resource version newer than the current state, a TimeoutError is returned suggesting the client retry in a few...

When that form is used, the variable is declared at the end of the
TypeSwitchCase in the <a href="#Blocks">implicit block</a> of each clause.
In clauses with a case listing exactly one type, the variable
has that type; otherwise, the variable has the type of the expression
in the TypeSwitchGuard.
</p>

<p>
Instead of a type, a case may use the predeclared identifier