- 'KubeSchedulerConfiguration' which used to be under GroupVersion 'componentconfig/v1alpha1',
is now under 'kubescheduler.config.k8s.io/v1alpha1'.  ([#66916](https://github.com/kubernetes/kubernetes/pull/66916), [@dixudx](https://github.com/dixudx)) Courtesy of SIG Cluster Lifecycle, SIG Scheduling, and SIG Testing

  - HardPodAffinityWeight moved from a top level ComponentConfig parameter to a PluginConfig parameter of InterPodAffinity Plugin in `kubescheduler.config.k8s.io/v1alpha2` ([#88002](https://github.com/kubernetes/kubernetes/pull/88002), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling and...

- Scheduler ComponentConfig fields are now pointers ([#83619](https://github.com/kubernetes/kubernetes/pull/83619), [@damemi](https://github.com/damemi))

- kube-scheduler dropped support for configuration files with apiVersion `componentconfig/v1alpha1`. Ensure kube-scheduler is configured using command-line flags or a configuration file with apiVersion `kubescheduler.config.k8s.io/v1alpha1` before upgrading to 1.13.
- kubectl

- The deprecated flag `--hard-pod-affinity-symmetric-weight` and `--scheduler-name` have been removed from `kube-scheduler`. Use `ComponentConfig` instead to configure those parameters. ([#102805](https://github.com/kubernetes/kubernetes/pull/102805), [@ahg-g](https://github.com/ahg-g))

  - DeletionByPodGC (an orphaned Pod deleted by PodGC) ([#110959](https://github.com/kubernetes/kubernetes/pull/110959), [@mimowo](https://github.com/mimowo))
- Kube-Scheduler ComponentConfig is graduated to GA, `kubescheduler.config.k8s.io/v1` is available now.
  Plugin `SelectorSpread` is removed in v1. ([#110534](https://github.com/kubernetes/kubernetes/pull/110534), [@kerthcet](https://github.com/kerthcet))

*   The API group/version for the kube-proxy configuration has changed from `componentconfig/v1alpha1` to `kubeproxy.config.k8s.io/v1alpha1`. If you are using a config file for kube-proxy instead of the command line flags, you must change its apiVersion to `kubeproxy.config.k8s.io/v1alpha1`. ([#53645](https://github.com/kubernetes/ku...

the new directory, and installation processes must be updated with the new path. ([#58171](https://github.com/kubernetes/kubernetes/pull/58171), [@verult](https://github.com/verult))

* Default values differ between the Kubelet's componentconfig (config file) API and the Kubelet's command line. Be sure to review the default values when migrating to using a config file. For example, the authz mode is set to "AlwaysAllow" if you rely on the command line, but defaults to the more secure...

- The deprecated flag `--lock-object-namespace` and `--lock-object-name` have been removed from kube-scheduler. Please use `--leader-elect-resource-namespace` and `--leader-elect-resource-name` or ComponentConfig instead to configure those parameters. ([#119130](https://github.com/kubernetes/kubernetes/pull/119130), [@SataQiu](https://github.com/SataQiu)) [SIG Scheduling]

- Scheduler v1 Policy config or algorithm-provider settings can now be passed alongside v1beta1 ComponentConfig to aid transition from Policy to CC ([#92531](https://github.com/kubernetes/kubernetes/pull/92531), [@damemi](https://github.com/damemi)) [SIG Scheduling]