</p>

<pre>
package runtime

type Error interface {
	error
	// and perhaps other methods
}
</pre>

<h2 id="System_considerations">System considerations</h2>

<h3 id="Package_unsafe">Package <code>unsafe</code></h3>

<p>
The built-in package <code>unsafe</code>, known to the compiler

- The apimachinery util/net function used to detect the bind address `ResolveBindAddress()` takes into consideration global IP addresses on loopback interfaces when 1) the host has default routes, or 2) there are no global IPs on those interfaces in order to support more complex network scenarios like BGP Unnumbered RFC 5549 ([#95790](https://github.com/kube...

- If scheduling fails on PreBind or Bind, scheduler will retry the failed pod immediately after backoff time, regardless of the reason for failing. In this case EventsToRegister (QHints) will not be taken into consideration before retry. ([#130189](https://github.com/kubernetes/kubernetes/pull/130189), [@ania-borowiec](https://github.com/ania-borowiec)) [SIG Scheduling]

- The scheduler retries scheduling Pods rejected by PreFilterResult (PreFilter plugins) more appropriately; it now takes events registered in those rejector PreFilter plugins into consideration. ([#122251](https://github.com/kubernetes/kubernetes/pull/122251), [@olderTaoist](https://github.com/olderTaoist)) [SIG Scheduling and Testing]

* Resolves regression generating informers for packages whose names contain `.` characters...

- kube-controller-manager currently needs a writable `--cert-dir` (default is `/var/run/kubernetes`) for generating self-signed...

### Failing Test

- Kubelet: the HostPort implementation in dockershim was not taking into consideration the HostIP field, causing that the same HostPort can not be used with different IP addresses.

  Once the pod terminates, the Job controller evaluates `.backoffLimit` and `.podFailurePolicy` for the
  relevant Job, taking this now-terminated Pod into consideration.
  
  This behavior is limited to Jobs with `.spec.podFailurePolicy` set, and only when those two feature
  gates are both enabled.