diff --git a/doc/mp11/changelog.adoc b/doc/mp11/changelog.adoc
index bfeca2d..f3335f0 100644
--- a/doc/mp11/changelog.adoc
+++ b/doc/mp11/changelog.adoc
@@ -10,6 +10,10 @@ http://www.boost.org/LICENSE_1_0.txt
 [#changelog]
 # Revision History
 
+## Changes in 1.73.0
+
+* Added `mp_unique_if` (contributed by Kris Jusiak)
+
 ## Changes in 1.70.0
 
 * Renamed `mp_invoke` to `mp_invoke_q`