// Optional: Default to true.
  // If set to true or not present, the pod will be run in the host user namespace, useful
  // for when the pod needs a feature only available to the host user namespace, such as
  // loading a kernel module with CAP_SYS_MODULE.
  // When set to false, a new userns is created for the pod. Setting false is useful for
  // mitigating container breakout vulnerabilities even allowing users to run their

  change, rather than reliably updating every 60 seconds (or whatever). If you
  are trying to monitor for whether iptables updates are failing, the
  `sync_proxy_rules_iptables_restore_failures_total` metric may be more useful. ([#81517](https://github.com/kubernetes/kubernetes/pull/81517), [@danwinship](https://github.com/danwinship))
### Instrumentation

#### **Cloud Provider Integration**

**Note**: You probably don't need `contextvars`, and you should probably avoid using them. But they are powerful and useful in some advanced scenarios, for example, migrating from code that used Flask's `g` semi-global variable.

- Kubectl now supports shell completion for the...

- Kubernetes will try to acquire the iptables lock every 100 msec during 5 seconds instead of every second. This is especially useful for environments using kube-proxy in iptables mode with a high churn rate of services. ([#85771](https://github.com/kubernetes/kubernetes/pull/85771), [@aojea](https://github.com/aojea)) [SIG Network]

- kubeadm now includes a new EXPERIMENTAL `--rootfs`, which (if specified) causes kubeadm to chroot before performing any file operations.  This is expected to be useful when setting up kubernetes on a different filesystem, such as invoking kubeadm from docker. ([#54935](https://github.com/kubernetes/kubernetes/pull/54935), [@anguslees](https://github.com/anguslees))

* AWS Security Groups created for ELBs will now be tagged with the same additional tags as the ELB; that is, the tags specified by the "service.beta.kubernetes.io/aws-load-balancer-additional-resource-tags" annotation. This is useful for identifying orphaned resources. ([#58767](https://github.com/kubernetes/kubernetes/pull/58767), [@2rs2ts](https://github.com/2rs2ts))

  
  kubelet also ignores an error during opening `/dev/kmsg`.
  This feature gate also allows kube-proxy to ignore an error during setting `RLIMIT_NOFILE`.
  
  This feature gate is especially useful for running Kubernetes inside Rootless Docker/Podman with `kind` or `minikube`. ([#92863](https://github.com/kubernetes/kubernetes/pull/92863), [@AkihiroSuda](https://github.com/AkihiroSuda)) [SIG Network, Node and Testing]

    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* This adds some useful metrics around pending changes and last successful ([#78602](https://github.com/kubernetes/kubernetes/pull/78602), [@paulgmiller](https://github.com/paulgmiller))
    * sync time.