changelog: adds note about closing #14043

CHANGELOG.md

@@ -26,6 +26,10 @@
 
 * Postgres/MySQL/MSSQL datasources now per default uses `max open connections` = `unlimited` (earlier 10), `max idle connections` = `2` (earlier 10) and `connection max lifetime` = `4` hours (earlier unlimited)
 
+# 5.3.5 (unreleased)
+
+* **Security**: Upgrade macaron session package to fix security issue. [#14043](https://github.com/grafana/grafana/pull/14043)
+
 # 5.3.4 (2018-11-13)
 
 * **Alerting**: Delete alerts when parent folder was deleted [#13322](https://github.com/grafana/grafana/issues/13322)