Update release notes wrt #740
diff --git a/release-notes/VERSION b/release-notes/VERSION
index f1a2531..6da39d1 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -22,6 +22,7 @@
#727: Improve `ObjectWriter.forType()` to avoid forcing base type for container types
#737: Add support for writing raw values in TokenBuffer
(suggested by Guillaume S, gsmet@github)
+#740: Ensure proper `null` (as empty) handling for `AtomicReference`
#743: Add `RawValue` helper type, for piping raw values through `TokenBuffer`
#756: Disabling SerializationFeature.FAIL_ON_EMPTY_BEANS does not affect `canSerialize()`
(reported by nickwongdev@github)