6o67hekt

Hi, I'm running an ancient version of XPEnology. DSM 5.0-4528 on a HP Proliant N54L, with 5 drives (using one of the hidden SATA connectors). It's been working fine, but I'm looking to get some of the new shiny. What's the best way to upgrade to 6.2 or maybe even 7? Can I go directly to 6.2? Do I need to do intermediate updates? I'm a bit hesitant to upgrade as I don't have adequate space to backup the drives, so want to be extra careful with the upgrade path.