diff --git a/src/Symfony/Component/Yaml/CHANGELOG.md b/src/Symfony/Component/Yaml/CHANGELOG.md
index 45c331f986962..1a112f1230d32 100644
--- a/src/Symfony/Component/Yaml/CHANGELOG.md
+++ b/src/Symfony/Component/Yaml/CHANGELOG.md
@@ -20,6 +20,9 @@ CHANGELOG
 3.1.0
 -----
 
+ * Added support to dump `stdClass` and `ArrayAccess` objects as YAML mappings
+   through the `Yaml::DUMP_OBJECT_AS_MAP` flag.
+
  * Strings that are not UTF-8 encoded will be dumped as base64 encoded binary
    data.