job controller back-off logic is now decoupled from workqueue. In case of parallelism > 1, if there are multiple new failures in a reconciliation cycle, all the failures are taken into account to compute the back-off. Previously, the back-off kicked in for all types of failures; with this change, only pod failures are taken into account. If the back-off limits exceeds, the job is marked as failed immediately; before this change, the job is marked as failed in the next back-off. ([#114768](https:...

For the 1.8 release, SIG Multicluster focussed on expanding the set of
Kubernetes primitives that our Cluster Federation control plane
supports, expanding the number of approaches taken to multi-cluster
management (beyond our initial Federation approach), and preparing
to release Federation for general availability ('GA').

- `kubeadm`: added a new "kubeadm config validate" command that can be used to
  validate any input config file. Use the `--config` flag to pass a config file
  to it. See the command `--help` screen for more information. As a result of adding
  this new command, enhance the validation capabilities of the existing "kubeadm

- Kubeadm: make sure that `kubeadm init/join` always use a URL scheme (unix:// on Linux and npipe:// on Windows) when passing a value to the `--container-runtime-endpoint` kubelet flag. This flag's value is taken from the kubeadm configuration `criSocket` field or the `--cri-socket` CLI flag. Automatically add a missing URL scheme to the user configuration in memory, but warn them that they should also update their configuration on disk manually. During `kubeadm...

- Kubeadm: fix the bug that configurable KubernetesVersion not respected during kubeadm join ([#111022](https://github.com/kubernetes/kubernetes/pull/111022), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]
- Reduced time taken to sync proxy rules on Windows kube-proxy with kernelspace mode ([#110702](https://github.com/kubernetes/kubernetes/pull/110702), [@daschott](https://github.com/daschott)) [SIG Network and Windows]

- Kubeadm: fix the bug that configurable KubernetesVersion not respected during kubeadm join ([#111024](https://github.com/kubernetes/kubernetes/pull/111024), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster Lifecycle]
- Reduced time taken to sync proxy rules on Windows kube-proxy with kernelspace mode ([#110701](https://github.com/kubernetes/kubernetes/pull/110701), [@daschott](https://github.com/daschott)) [SIG Network and Windows]

- Pods will now post their readiness during termination. ([#110191](https://github.com/kubernetes/kubernetes/pull/110191), [@rphillips](https://github.com/rphillips)) [SIG Network, Node and Testing]
- Reduced time taken to sync proxy rules on Windows kube-proxy with kernelspace mode ([#109124](https://github.com/kubernetes/kubernetes/pull/109124), [@daschott](https://github.com/daschott)) [SIG Network, Release and Windows]

  certificate. ([#120521](https://github.com/kubernetes/kubernetes/pull/120521), [@SataQiu](https://github.com/SataQiu))
- `kubeadm`: removed leftover disclaimer that could be seen in the `kubeadm init phase certs` command help screen, since the "certs" phase of "init" is no longer alpha. ([#121172](https://github.com/kubernetes/kubernetes/pull/121172), [@SataQiu](https://github.com/SataQiu))

- Kubeadm: when a sub command is needed but not provided for a kubeadm command, print a help screen instead of showing a short message. ([#111277](https://github.com/kubernetes/kubernetes/pull/111277), [@chymy](https://github.com/chymy))