Change:
We now consider kubeadm to have achieved GA-level maturity in each of these important domains: * **Stable command-line UX** --- The kubeadm CLI conforms to [#5a GA rule of the Kubernetes Deprecation Policy](/docs/reference/using-api/deprecation-policy/#deprecating-a-flag-or-cli), which states that a command or flag that exists in a GA version must be kept for at least 12 months after deprecation. <del> * **Stable underlying implementation** --- kubeadm now creates a new Kubernetes cluster using methods that shouldn't change any time soon. The control plane, for example, is run as a set of static Pods, bootstrap tokens are used for the [`kubeadm join`](/docs/reference/setup-tools/kubeadm/kubeadm-join/) flow, and [ComponentConfig](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/wgs/0014-20180707-componentconfig-api-types-to-staging.md) is used for configuring the [kubelet](/docs/reference/command-line-tools-reference/kubelet/). </del> <ins> * **Stable underlying implementation** --- kubeadm now creates a new Kubernetes cluster using methods that shouldn't change any time soon. The control plane, for example, is run as a set of static Pods, bootstrap tokens are used for the [`kubeadm join`](/docs/reference/setup-tools/kubeadm/kubeadm-join/) flow, and [ComponentConfig](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/wgs/115-componentconfig) is used for configuring the [kubelet](/docs/reference/command-line-tools-reference/kubelet/). </ins> * **Configuration file schema** --- With the new **v1beta1** API version, you can now tune almost every part of the cluster declaratively and thus build a "GitOps" flow around kubeadm-built clusters. In future versions, we plan to graduate the API to version **v1** with minimal changes (and perhaps none). * **The "toolbox" interface of kubeadm** --- Also known as **phases**. If you don't want to perform all [`kubeadm init`](/docs/reference/setup-tools/kubeadm/kubeadm-init/) tasks, you can instead apply more fine-grained actions using the `kubeadm init phase` command (for example generating certificates or control plane [Static Pod](/docs/tasks/administer-cluster/static-pod/) manifests). * **Upgrades between minor versions** --- The [`kubeadm upgrade`](/docs/reference/setup-tools/kubeadm/kubeadm-upgrade/) command is now fully GA. It handles control plane upgrades for you, which includes upgrades to [etcd](https://etcd.io), the [API Server](/docs/reference/using-api/api-overview/), the [Controller Manager](/docs/reference/command-line-tools-reference/kube-controller-manager/), and the [Scheduler](/docs/reference/command-line-tools-reference/kube-scheduler/). You can seamlessly upgrade your cluster between minor or patch versions (e.g. v1.12.2 -> v1.13.1 or v1.13.1 -> v1.13.3).

Discussion:
This is a Bug Report Problem: The reference link under page is leading to 404-page not found. Proposed Solution: We should update the existing link of to the correct reference link. Page to Update:
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