drop constraints on attribute values (json-api#1630)

jelhan · web-flow · commit df456f3ea783 · 2022-06-13T15:28:55.000-04:00
diff --git a/_format/1.1/index.md b/_format/1.1/index.md
@@ -462,12 +462,8 @@ The value of the `attributes` key **MUST** be an object (an "attributes
 object"). Members of the attributes object ("attributes") represent information
 about the [resource object][resource objects] in which it's defined.
 
-Attributes may contain any valid JSON value.
-
-Complex data structures involving JSON objects and arrays are allowed as
-attribute values. However, any object that constitutes or is contained in an
-attribute **MUST NOT** contain a `relationships` or `links` member, as those
-members are reserved by this specification for future use.
+Attributes may contain any valid JSON value, including complex data structures
+involving JSON objects and arrays.
 
 Keys that reference related resources (e.g. `author_id`) **SHOULD NOT** appear
 as attributes. Instead, [relationships] **SHOULD** be used.
