diff --git a/UPGRADE-1.8.txt b/UPGRADE-1.8.txt
index b70ff07f65417449f1a4f66831e68986e47781a8..ebafedd9e418debdcd16678fb82ba6a7105f7527 100644
--- a/UPGRADE-1.8.txt
+++ b/UPGRADE-1.8.txt
@@ -143,6 +143,12 @@ From 1.6.2 to 1.8:
   events/responses output the connected line ID as caller ID.  These party ID's
   are now separate.
 
+* The outgoing directory (where .call files are read) now uses inotify to
+  detect file changes instead of polling the directory on a regular basis.
+  If your outgoing folder is on a NFS mount or another network file system,
+  changes to the files will not be detected.  You can revert to polling the
+  directory by specifying --without-inotify to configure before compiling.
+
 From 1.6.1 to 1.6.2:
 
 * SIP no longer sends the 183 progress message for early media by