Complete #638 implementation
diff --git a/release-notes/VERSION b/release-notes/VERSION
index 2c0f786..882a1dd 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -51,6 +51,8 @@
 #634: Add `typeFromId(DatabindContext,String)` in `TypeIdDeserializer`
 #636: `ClassNotFoundException` for classes not (yet) needed during serialization
  (contributed by mspiegel@github)
+#638: Add annotation-based method(s) for injecting properties during serialization
+  (using @JsonAppend, VirtualBeanPropertyWriter)
 - Allow use of `Shape.ARRAY` for Enums, as an alias to 'use index'
 - Start using `JsonGenerator.writeStartArray(int)` to help data formats
   that benefit from knowing number of elements in arrays (and would otherwise