https://forum.proxmox.com/threads/update-ve5-to-ve6.70415/
[SOLVED] - Update ve5 to ve6 | Proxmox Support Forum
Hello Proxmox Staff, im currently managing proxmox ve 5 cluster with 20 nodes without shared storage, currently im in process of adding another 4 nodes...
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https://learn.microsoft.com/en-us/previous-versions/bb545008(v=msdn.10)?redirectedfrom=MSDN
Converting From VE4 to VE5 | Microsoft Learn
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