diff --git a/filelist.txt b/filelist.txt
index 7d92e71..8281c14 100644
--- a/filelist.txt
+++ b/filelist.txt
@@ -1,3 +1,7 @@
+This file is out of date - it remains here in case it is still of use.
+The basic naming convention is svr- and cli-  for seperate parts,
+then common- for common parts. Some files have no prefix.
+
 A brief rundown on which files do what, and their corresponding sections
 in the IETF drafts. The .c files usually have corresponding .h files.