What is this "Admissions Documents Send"?

I am currently away for a vacation, but on the CMU application status website,

on the section “Admission Documents Sent”, it says Date: 27-mar-2018 Document: Decision Notification Letter

Now, I am not sure if decision notification letter was sent to me specifically or to general applicants

I know that rejected/waitlisted applicants do not receive the letter of the acceptance so I wonder if this means anything

I see this too! I was wondering the same thing. Do you know for sure that rejected/WL applicants don’t receive anything?

priority waitlisted