diff --git a/ChangeLog b/ChangeLog
index a3278638a5c6cbec685f38390a9391f0b8c341e5..33322520cacefe9017e465383ac9086ae8e1891d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,10 @@
-15xx.	[bug]		tmark
+1569.	[perf]		fdupont
+	Improved performance of the DHCPv4 server in cases when
+	match-client-id set disabled by removing unnecessary query to the
+	lease database."
+	(Gitlab 509,!272, git 2ad41651c1118fe6f7dfb918df0694dd254706f1)
+
+1568.	[bug]		tmark
 	kea-dhcp6 now properly skips sanity checking prefix leases.
 	Prior to this it was incorrectly subjecting them to sanity
 	checks during memfile lease file reloads and then flagging