On August 6, 2025, Proxmox Virtual Environment (VE) 9.0 was officially released. The new version brings many significant improvements, particularly in the areas of storage, networking, and usability.
Based on Debian 13 "Trixie" and Linux kernel 6.14.8-2, Proxmox VE 9.0 provides a modern foundation for virtualization and container solutions.
With ZFS 2.3.3, the dynamic expansion of RAID-Z pools is now possible – without a complete rebuild. This is particularly useful in growth-oriented storage environments.
New is the ability to create snapshots on thick-provisioned LVM volumes – ideal for shared storage via iSCSI or Fibre Channel.
Software-defined networking functionality has been expanded:
Affinity policies can now be defined for high-availability clusters:
The mobile user interface has been modernized:
An upgrade from Proxmox VE 8.x is possible. There are two ways to do this:
Proxmox VE 9.0 brings a wealth of features that appeal to both enterprise and home lab users. The new storage and networking features enable more flexible setups, while the updated system foundation ensures long-term stability.
A worthwhile upgrade for anyone who wants to run modern virtualization on a solid foundation.