diff --git a/CHANGES b/CHANGES
index be320c0f61..66981c5292 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+6247.	[func]		Implement incremental hashing in both isc_siphash
+			and isc_hash units. [GL #4306]
+
 6246.	[placeholder]
 
 6245.	[placeholder]