diff --git a/doc/guide/bind10-guide.xml b/doc/guide/bind10-guide.xml
index 3b67bb31e6..7e80e6b1a6 100644
--- a/doc/guide/bind10-guide.xml
+++ b/doc/guide/bind10-guide.xml
@@ -1966,6 +1966,13 @@ what is XfroutClient xfr_client??
update forwarding for secondary zones.
If it receives an update request for a secondary zone, it will
immediately return a response with an RCODE of NOTIMP.
+
+ For feature completeness update forwarding should be
+ eventually supported. But right now it's considered a lower
+ priority task and there is no specific plan of implementing
+ this feature.
+
+
@@ -1978,7 +1985,9 @@ what is XfroutClient xfr_client??
In addition, b10-xfrout should also be
configured to run; otherwise the notification after an update
(see above) will fail with a timeout, suspending the DDNS
- service while b10-ddns waits for the response.
+ service while b10-ddns waits for the
+ response (see the description of the DDNS_UPDATE_NOTIFY_FAIL
+ for further details).
If BIND 10 is already configured to provide authoritative DNS
service they should normally be configured to run already.