* openstack cinder detach problem is fixed if nova is shutdowned ([#56846](https://github.com/kubernetes/kubernetes/pull/56846), [@zetaab](https://github.com/zetaab))
* Fixed kube-proxy to work correctly with iptables 1.6.2 and later. ([#61734](https://github.com/kubernetes/kubernetes/pull/61734), [@danwinship](https://github.com/danwinship))

### Bug or Regression

- Fixes a race condition in the iptables mode of kube-proxy in 1.27 and later
  that could result in some updates getting lost (e.g., when a service gets a
  new endpoint, the rules for the new endpoint might not be added until
  much later). ([#122757](https://github.com/kubernetes/kubernetes/pull/122757), [@hakman](https://github.com/hakman)) [SIG Network]

  // Errors may occur at different points while syncing config. Earlier errors (e.g. download or
  // checkpointing errors) will not result in a rollback to LastKnownGood, and may resolve across
  // Kubelet retries. Later errors (e.g. loading or validating a checkpointed config) will result in
  // a rollback to LastKnownGood. In the latter case, it is usually possible to resolve the error
  // by fixing the config assigned in Spec.ConfigSource.

 valuable credential. You can create a new Bootstrap Token with
 `kubeadm token create` or make the default token permanently valid by specifying
 `--token-ttl 0` to `kubeadm init`. The default token can later be deleted with
 `kubeadm token delete`.

 - `kubeadm join` now delegates TLS Bootstrapping to the kubelet itself, instead
 of reimplementing the process. `kubeadm join` writes the bootstrap kubeconfig