suggestions for upgrade path XCP-ng 8.2.1 -> XCP-ng 8.3.0

ditzy-olive

Hi xcp-ng community,
I've have a xcp-ng setup consisting out of a pool of two servers that are both running XCP-ng 8.2.1, yes yes, I know it's outdated and I should have upgraded. Don't judge please, it's been a rough year.
Now I've finally made time to setup a third server so I can migrate and upgrade the others. This is where my problems started, I can't add the new xcp-ng running 8.3.0 to the existing pool.
I'm getting an error "message": "The hosts are not compatible",
Which I assume is based on the fact that they are running different xcp-ng versions.

I was thinking of two paths out of this mess.

Reinstall the new server with 8.2.1, adding it to the pool then migrate VMs and start upgrading.
Upgrade the existing servers then add the new one to the pool.

The 2nd option sounds like the more reasonable idea but it just feels scary to install an iso over an existing system.

Was just hoping to be able to move the VM off to the new server and start a rolling upgrade but since I can't add it to the pool it seems that I have to take the risk.

Any suggestions how I could do this better? Or what to pay attention to?

Thanks

Andrew

@ditzy-olive You can not join a new XCP 8.3 host to an existing 8.2 pool.

You can setup your new host as 8.2 and join it to the 8.2 pool and then upgrade everything to 8.3 using the correct procedure.... Or as you stated. Add the new 8.3 host to the upgraded 8.3 pool.