Add release notes wrt #597
diff --git a/release-notes/VERSION b/release-notes/VERSION
index b7f0526..7536a16 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -34,6 +34,9 @@
(requested by herau@github)
#576: Add fluent API for adding mixins
(contributed by Adam S, adstro@github)
+#597: Improve error messaging for cases where JSON Creator returns null (which
+ is illegal)
+ (contributed by Aurelien L)
- 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