diff --git a/RELEASENOTES.adoc b/RELEASENOTES.adoc
index d98713ba..7b2eabc2 100644
--- a/RELEASENOTES.adoc
+++ b/RELEASENOTES.adoc
@@ -163,4 +163,7 @@
 * PR #294: Examples always start with a newline if there is other content in the same cell
 * PR 307: Include required parameters in example request
 
+=== Version 1.4.0
+* Added openapi2markup to support OpenAPI v3
+* Issue #409: Fixed JSON response example