Proxmox VE 9.0 is out, and it brings a solid set of updates. Built on Debian 13 “Trixie” with Linux kernel 6.14.8, it improves hardware support and overall performance.
Core Updates
The virtualization stack includes:
- QEMU 10.0.2 for better VM performance
- LXC 6.0.4 for improved container stability
- ZFS 2.3.3 with RAID-Z expansion
- Ceph Squid 19.2.3 for distributed storage (useful in clusters)
Storage & Networking
You can now take VM snapshots on thick-provisioned LVM storage, which is helpful if you use Fibre Channel or iSCSI. Proxmox also adds Software-Defined Networking (SDN) features like OpenFabric and OSPF routing—ideal for more complex setups.
High Availability & Monitoring
New HA affinity rules let you control where VMs run in a cluster. Plus, real-time node metrics give better visibility into system performance.
Interface Improvements
The mobile UI has been redesigned, making it easier to manage your lab from a phone or tablet.
Upgrade Notes
If you’re running Proxmox VE 8.4, the upgrade path is well-documented. You’ll want to run the pve8to9 checklist script before upgrading to catch any issues.
For homelabbers, Proxmox VE 9.0 offers meaningful improvements without adding complexity. It’s a worthwhile upgrade if you want better performance, more control, and cleaner management tools.
