--- a/doc/book/en/devrepo/datamodel/definition.rst	Fri Apr 23 17:01:45 2010 +0200
+++ b/doc/book/en/devrepo/datamodel/definition.rst	Fri Apr 23 20:06:04 2010 +0200
@@ -50,7 +50,8 @@
 
 Also |yams| supports the notions of:
 
-* entity inheritance,
+* entity inheritance (quite experimental yet, and completely
+  undocumented),
 * relation type: that is, relationships can be established over a set
   of couple of entity types (henre the distinction made between
   `RelationType` and `RelationDefinition` below)