Some companies still run legacy versions. Archived PDFs are available via the "Version History" section. Use these only if you are not using the current software version.
, there are still several reliable PDF resources and official manuals available for download. Official Relux PDF Resources relux software tutorial pdf
Check the "Webinars" archive on Relux.com. Many webinars have an accompanying PDF script that you can download before watching the video. Some companies still run legacy versions