Proxmox VE 5.1 release
See https://forum.proxmox.com/threads/proxmox-ve-5-1-released.37649/
24th Oct 2017
Proxmox VE 5.0 release
See https://forum.proxmox.com/threads/proxmox-ve-5-0-released.35450/
4th Jul 2017
Proxmox VE 4.4 release
See https://forum.proxmox.com/threads/proxmox-ve-4-4-released.31028/
13th Dec 2016
Proxmox VE 4.3 release
See https://forum.proxmox.com/threads/proxmox-ve-4-3-released.29483/
27th Sept 2016