If your cluster contains workloads with readiness and/or liveness probes, a cluster upgrade might cause pod probe or lifecycle hook failures. It could also trigger in-place pod restarts. If no readiness or liveness probes are configured, cluster upgrades will not affect workloads. Before upgrading a cluster, check whether the cluster is healthy and whether business traffic is in off-peak hours. Then, decide whether to upgrade nodes. For more information, see Best practices for cluster upgrade.

Last updated: 2026.07.23 14:31:45

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