diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml
index 9e076a4308..22540a12ae 100644
--- a/doc/src/sgml/ref/pg_dump.sgml
+++ b/doc/src/sgml/ref/pg_dump.sgml
@@ -1,5 +1,5 @@
@@ -645,6 +645,17 @@ CREATE DATABASE foo WITH TEMPLATE template0;
ensure good performance.
+
+ Because pg_dump is used to tranfer data
+ to newer versions of PostgreSQL>, the output of
+ pg_dump can be loaded into
+ newer versions of PostgreSQL>. It also can read older
+ PostgreSQL> databases. However, it usually cannot
+ read newer PostgreSQL> databases or produce dump output
+ that can be loaded into older database versions. To do this, manual
+ editing of the dump file might be required.
+
+