diff --git a/CHANGES b/CHANGES
index 548208b3ef..2df84ce57a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,5 @@
-6319.	[placeholder]
+6319.	[func]		Limit isc_async_run() overhead for RBTDB tree pruning.
+			[GL #4383]
 
 6318.	[placeholder]