diff --git a/ChangeLog b/ChangeLog
index f7631b8dc5f..c6cd7463316 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -19,7 +19,8 @@ Following changes may create regressions for some external modules, but were nec
   with HTML content that you make a GETPOST('myparam', 'restricthtml') or GETPOST('myparam', 'none') if you really need posted content without sanitizing
   the HTML into content (in such a case, sanitize data later)
 * Removed hidden constant MAIN_EXTRAFIELDS_IN_ONE_TD that was useless. 
-  
+* Reference of object including a "/" are no more allowed. It is never used by default but to support setup that introduced it, the "/" will be replaced 
+  by a "_" automatically when a reference is generated.  
   
 ***** ChangeLog for 11.0.1 compared to 11.0.0 *****
 FIX: advanced target emailing sql and ergonomy.