https://suzf.net/blog/tags/consul/ Recent content in Consul on Suzf Blog Hugo en i@suzf.net (JeffreySu) i@suzf.net (JeffreySu) This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Fri, 30 Jan 2026 16:32:53 +0800 https://suzf.net/blog/posts/consul-server-upgrade/ Fri, 30 Jan 2026 16:32:53 +0800i@suzf.net (JeffreySu) https://suzf.net/blog/posts/consul-server-upgrade/ <p>Upgrading a Consul cluster must follow the principle of &ldquo;step by step, Servers before Clients, maintain compatibility&rdquo;. If the version gap is too large (e.g., jumping from 1.1x directly to 1.2x), a direct upgrade may cause Raft protocol incompatibility or data corruption.</p> <p>Below is a detailed upgrade roadmap and procedure:</p>