Proxmox VE version 6.0 has been released on 16 July 2019 and is ready for new installations and upgrades. The version is based on Debian 10 codenamed Buster. It includes updates to the latest versions of the leading open-source technologies for virtual environments like a 5.0 Linux kernel (based on Ubuntu 19.04 “Disco Dingo”), QEMU 4.0.0, LXC 3.1.0, Ceph 14.2 (Nautilus), ZFS 0.8.1, and Corosync 3.0.2. Proxmox VE 6.0 delivers several new major features, enhancements, and bug fixes.

What’s new in Proxmox VE 6

  • Ceph Nautilus (14.2) and improved Ceph dashboard management: Proxmox VE allows to setup and manage a hyperconverged infrastructure with a Proxmox VE/Ceph-cluster.
  • Cluster communication stack with Corosync 3 using Kronosnet: with Proxmox VE 6.0 the cluster communication stack has been updated to Corosync 3 by which the on-the-wire format has changed. Corosync now uses unicast as default transport method. This provides a better control of failovers as different networks can now be prioritized.
  • ZFS 0.8.1 with native encryption and SSD TRIM support
  • Support for ZFS on UEFI and on NVMe devices in the ISO installer
  • QEMU 4.0.0: new QEMU functionalities are included in Promxox VE 6.0
  • Custom Cloudinit configurations: Proxmox VE 6 brings support for custom Cloudinit configurations and lets users store it as Snippet.

Other Notable Changes in Proxmox VE 6.0

  • Automatic clean-up of old kernel images: the old kernel images are no longer marked as ‘NeverAutoRemove’ which helps to prevent problems when /boot is mounted on a small partition.
  • Guest status display in the tree view.
  • Improved ISO detection in the installer.
  • Pool level backup: it’s now possible to create a backup task for a whole pool.
  • Automatic rotation of the authentication key every 24h: by limiting the key lifetime to 24h the impact of key leakage or a malicious administrator are reduced.
  • The Node view in the user interface provides a faster syslog view.

By using Proxmox VE 6 as an open-source alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure and turn it into a cost-effective and flexible software-defined data center.

Sources: Proxmox press release