Proxmox VE 6.1 (released on December 4, 2019) includes countless new features:

  • Debian Buster 10.2 and a Linux Kernel 5.3
  • QEMU 4.1.1, LXC 3.2, Corosync 3.0, ZFS 0.8.2
  • Ceph 14.2.4 (Nautilus)
  • GUI: many new data center configuration options
  • Change network settings via GUI without reboot (ifupdown2)
  • New HA migrate option
  • Set noVNC scale mode in "My settings"
  • TOTP and U2F as two factor authentication
  • Container: pending changes
  • SPICE enhancements
  • and many more...

View the detailed release notes: http://pve.proxmox.com/wiki/Roadmap

For best quality watch the video in full screen mode (e.g., firefox, ie, chrome).