This chapter demonstrates how cluster operators can upgrade existing KubeSphere to v3.0.0.
Understand what you need to pay attention to before the upgrade, such as versions and upgrade tools.
Follow steps to use KubeKey to upgrade Kubernetes and KubeSphere.
Follow steps to use ks-installer to upgrade KubeSphere.
Understand what will be changed after the upgrade.
Find the answers to some of the most asked questions of upgrading.