+.PP
+.BR Welcome :
+disable
+.RS 5
+If the Welcome component is not present, or its value is not
+.RI \*(lq disable \*(rq,
+a welcome message will be displayed the first time that an interactive
+.B nmh
+program is run after updating the
+.B nmh
+installation.
+The user must press the Enter key to continue.
+.PP
+If the MHCONTEXT environment variable is set and non-empty (and
+the Welcome component is not
+.RI \*(lq disable \*(rq),
+the welcome message is only displayed if the context file contains a version
+reference, and that reference is older than the installed
+.B nmh
+version. The version reference is of the form:
+.PP
+.RS 5
+.nf
+Version: %nmhversion%
+.fi
+.RE