From Proxmox themselves: https://www.proxmox.com/en/about/company-details/press-releases/proxmox-virtual-environment-9-0
this post was submitted on 05 Aug 2025
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I love the stability and uptime and I don't want to break anything in my homelab. When would upgrading from 8.4 to 9 make sense?
When you have HA.
I'd wait a while
Whenever you need the ZFS features. I did need them and had no issues so far that were unexpected.
I don’t use Proxmox, but since it’s all libvirt anyway, I’ve frequently found someone doing something on it that helps me with my VMs.
For instance, my GPU passthrough Hackintosh VM is part based on some dude who made a tutorial for Proxmox that applies elsewhere.
It has some nice features built in such as clustering, storage and networking. I especially like how they added EVPN this release.
I'm curious about this Hackintosh. You got a good guide or some info lying around?
I use this image, which mostly just works (other than the need to throw model info and a made-up serial into a config.plist.
https://github.com/thenickdude/KVM-Opencore
I can’t say for 15.6, but mine is currently running 15.2 just fine; I usually fall a bit behind on updates since these days, I only really use it to upload They Might Ne Giants rarities to my cloud library via Apple Music.
The only annoyance with the VM is iPhones can’t connect over USB easily.
Most of it isnt libvirt but instead LXC containers.
Well, I guess it depends if you use VMs or containers. The VMs are QEMU over libvirt.