ordering-relationships

hhware · hhware · commit de11d55f7b25 · 2015-04-29T16:33:44.000-05:00
diff --git a/format/index.md b/format/index.md
@@ -344,6 +344,9 @@ relationship URLs.
 > Note: If present, a *related resource URL* must be a valid URL, even if the
 relationship isn't currently associated with any target resources.
 
+To-many relationship linkages are defined using set semantics. Order of elements 
+in to-many relationship linkage arrays has no meaning.
+
 For example, the following article is associated with an `author` and `comments`:
 
 ```javascript
