{"id":"update-strategy-canary-and-control-plane-model","text":"OpenShift updates support two complementary risk-mitigation strategies: canary rollout updates use custom MachineConfigPools with pause/unpause workflows to stage worker node updates, while Control Plane Only updates between even-numbered minor versions allow decoupling control plane and worker updates — both enabling phased rollouts but at different scopes.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["ocp-canary-updates-custom-machineconfigpools","ocp-control-plane-only-update-even-minor-versions"],"outlist":[],"label":"Two base beliefs about update strategies combine into a dual-scope risk mitigation model"}],"dependents":["progressive-update-within-lifecycle-bounds"],"metadata":{},"explanation":{"steps":[{"node":"update-strategy-canary-and-control-plane-model","truth_value":"IN","reason":"SL justification valid","antecedents":["ocp-canary-updates-custom-machineconfigpools","ocp-control-plane-only-update-even-minor-versions"],"label":"Two base beliefs about update strategies combine into a dual-scope risk mitigation model"},{"node":"ocp-canary-updates-custom-machineconfigpools","truth_value":"IN","reason":"premise"},{"node":"ocp-control-plane-only-update-even-minor-versions","truth_value":"IN","reason":"premise"}]}}