Update release notes wrt #427
diff --git a/release-notes/VERSION b/release-notes/VERSION
index d20ba2a..e04225d 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -10,6 +10,7 @@
 #408: External type id does not allow use of 'visible=true'
 #421: @JsonCreator not used in case of multiple creators with parameter names
  (reported by Lovro P, lpandzic@github)
+#427: Make array and Collection serializers call `JsonGenerator.writeStartArray(int)`
 #521: Keep bundle annotations, prevent problems with recursive annotation types
  (reported by tea-dragon@github)
 #527: Add support for `@JsonInclude(contents=Include.NON_NULL)` (and others) for Maps