Kube-upgrade-check – find what breaks before a Kubernetes upgrade
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
kube-upgrade-check is an open-source kubectl plugin that scans a live Kubernetes cluster for what an upgrade to a chosen version would break, including removed APIs, incompatible control-plane and kubelet settings, dropped volume plugins, node changes, and add-on version support.