diff --git a/ChangeLog b/ChangeLog
index a2705fdcaa..9f73cc07bf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+1888.	[func]		tmark
+	Added a new operational mode, HA+MT, to the HA hook library.
+	HA+MT provides direct, multi-threaded HTTP communication
+	between peers for the exchange HA protocol commands and
+	responses.
+	(Gitlab #1736)
+
 1887.	[build]		andrei, fdupont
 	Migrated autoconf macros, which became warningly deprecated
 	since autoconf 2.70, to supported macros.