I am a novice "lurking" on this list. We installed LISTSERV 1.8d last winter and are about to install 1.8e in a week or so. However, I have never heard of a "level set" during this brief time or noticed it in the documentation. What is a "level set"? Should I postpone the planned upgrade to 1.8e (VMS) until January? Will I get a notice stating whether I will be affected (release notes?)? Maybe a dumb question, but I would like to know. -Rich Helmke CAIS, Concordia University System