diff --git a/ChangeLog b/ChangeLog
index 01a52cafe4..b3f0b7ac37 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+784.	[func]		tmark
+	DHCP_DDNS's configuration was changed. The unused parameter, "interface"
+	was deleted.  Three new parameters, "ncr_protocol", "ncr_format", and
+	"dns_server_timeout" were added.  Please refer to Kea Guide for
+	details.
+	(Trac #3268,    git bd60252e679f19b062f61926647f661ab169f21c)
+
 783.	[func]*		tomek
 	b10-dhcp6: New parameter added to configure: --with-kea-config.
 	It allows selecting configuration backend and accepts one of two