<p>
When solving type equations from type constraints,
solving one equation may infer additional type arguments,
which in turn may enable solving other equations that depend
on those type arguments.
Type inference repeats type unification as long as new type
arguments are inferred.
</p>

<h3 id="Operators">Operators</h3>

<p>
Operators combine operands into expressions.
</p>

<pre class="ebnf">

- kubeadm: Improved resiliency when it comes to updating the `kubeadm-config` configmap upon new control plane joins or resets. This allows for safe multiple control plane joins and/or resets. ([#76821](https://github.com/kubernetes/kubernetes/pull/76821), [@ereslibre](https://github.com/ereslibre))

- `metadata.deletionTimestamp` is no longer moved into the future when issuing repeated DELETE requests against a resource containing a finalizer. ([#73138](https://github.com/kubernetes/kubernetes/pull/73138), [@liggitt](https://github.com/liggitt))

    * handle gracefully problem when kubelet reports duplicated stats for the same container (see [#47853](https://github.com/kubernetes/kubernetes/pull/47853)) on Heapster side
    * fixed bugs and improved performance in Stackdriver Sink

### Other (Cleanup or Flake)

- Reverts the EventedPLEG feature (beta, but disabled by default) back to alpha for a known issue ([#122720](https://github.com/kubernetes/kubernetes/pull/122720), [@pacoxu](https://github.com/pacoxu)) [SIG Node]

## Dependencies

### Other (Cleanup or Flake)

- Reverts the EventedPLEG feature (beta, but disabled by default) back to alpha for a known issue ([#122718](https://github.com/kubernetes/kubernetes/pull/122718), [@pacoxu](https://github.com/pacoxu)) [SIG Node]

## Dependencies

### 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))

- The feature gate "SkipReadOnlyValidationGCE" has been removed.  This gate has been active for 2 releases with no reports of issues (and was such a niche thing, we didn't expect any). ([#124210](https://github.com/kubernetes/kubernetes/pull/124210),...

- Kube-apiserver now reports latency metric for JWT authenticator authenticate token decisions in the `apiserver_authentication_jwt_authenticator_latency_seconds` metric, labeled by jwtIssuer hash and result. ([#123225](https://github.com/kubernetes/kubernetes/pull/123225), [@aramase](https://github.com/aramase))

unschedulable pods, scale up is required and cloud provider is slow to set up networking for new nodes.
Anyway, the cluster should get back to the proper size after 10 min.

### Deployment