If you see us refer to Learn or learn.saylor.org, all we mean is the place where you take your courses and do your learning and testing.
We launched Learn, built using the open-source learning management system Moodle, in in May 2015 and ran it alongside our old system until we retired the latter in August.
Once upon a time, our courses were in WordPress and our exams and certificates were in Moodle. Now, everything happens in just one place.
Most students who have been with us for a while already know about the changes and most newer students never knew anything different from what we have now, but if you are curious or back with Saylor Academy after an absence, you can learn more about the changes we made from our blog: