diff --git a/CHANGES b/CHANGES
index bda6eca03e..d3fb3e5c50 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,8 @@
+6120.	[bug]		Use two pairs of dns_db_t and dns_dbversion_t in a
+			catalog zone structure to avoid a race between the
+			dns__catz_update_cb() and dns_catz_dbupdate_callback()
+			functions. [GL #3907]
+
 6119.	[bug]		Make sure to revert the reconfigured zones to the
 			previous version of the view, when the new view
 			reconfiguration fails during the configuration of