These images contain critical bug fixes as well as some new improvements and security fixes to the underlying OS (currently Ubuntu 16.04.3 LTS). Also, the pre-installed WordPess version has been brought up to the latest version (4.8.1 currently).
What this all means is you are “up and running” much, much quicker with your new VPS and are less likely to have issues with pre-existing bugs. In addition, we now also have a FREE WordPress Manual to help you get started with your website in confidence. Woohoo!