diff --git a/reference/mbstring/functions/mb-regex-encoding.xml b/reference/mbstring/functions/mb-regex-encoding.xml
index eac0ede36c..9522c34fb2 100644
--- a/reference/mbstring/functions/mb-regex-encoding.xml
+++ b/reference/mbstring/functions/mb-regex-encoding.xml
@@ -42,6 +42,30 @@
+
+ &reftitle.changelog;
+
+
+
+
+
+ &Version;
+ &Description;
+
+
+
+
+ 5.6.0
+
+ Default encoding is changed to UTF-8. It was EUC-JP Previously.
+
+
+
+
+
+
+
+
&reftitle.seealso;