diff --git a/src/reference/asciidoc/whats-new.adoc b/src/reference/asciidoc/whats-new.adoc
index 190e802122..e9b02328a6 100644
--- a/src/reference/asciidoc/whats-new.adoc
+++ b/src/reference/asciidoc/whats-new.adoc
@@ -84,3 +84,9 @@ The same option is added into an `AbstractWebServiceOutboundGateway`.
 Java DSL support has been added for Web Service components.
 The `encodeUri` property on the `AbstractWebServiceOutboundGateway` has been deprecated in favor of newly introduced `encodingMode` - similar to HTTP changes above.
 See <<./ws.adoc#ws,Web Services Support>> for more information.
+
+[[x5.3-tcp]]
+=== TCP Changes
+
+The `FailoverClientConnectionFactory` no longer fails back, by default, until the current connection fails.
+See <<./ip.adoc#failover-cf,TCP Failover Client Connection Factory>> for more information.