The biggest new feature of the Proxmox VE 4.3 release appears to be a new reference documentation that users can download in various formats, including as EPUB, PDF or HTML, helping newcomers get started with Proxmox much faster. However, it looks like it is based on the Debian GNU/Linux 8.6 “Jessie” and Ubuntu 16.04 LTS (Xenial Xerus) operating systems, running LXC 2.0 and Linux kernel 4.4 LTS. Another important component that received improvements in the Proxmox VE 4.3 release is the GUI (Graphical User Interface), which received an updated vertical structure and several new features, such as status overview for containers, virtual machines, host, and storage, a search function, and a brand new Disk Overview section where you can see wearout for enterprise SSDs and S.M.A.R.T. status for HDDs.