diff --git a/doc/src/soda.rst b/doc/src/soda.rst
index c08d6ce..0c006a7 100644
--- a/doc/src/soda.rst
+++ b/doc/src/soda.rst
@@ -4,6 +4,13 @@
 SODA
 ****
 
+An overview of Simple Oracle Document Access (SODA) can be found
+`here
+<https://docs.oracle.com/en/database/oracle/simple-oracle-document-access>`__.
+
+SODA requires Oracle Client 18.3 or higher and Oracle Database 18.1 and higher.
+The role SODA_APP must be granted to the user.
+
 SODA support in cx_Oracle is in Preview status and should not be used in
 production. It will be supported with a future version of Oracle Client
 libraries.
diff --git a/samples/SodaBasic.py b/samples/SodaBasic.py
index c7a9aa2..434829c 100644
--- a/samples/SodaBasic.py
+++ b/samples/SodaBasic.py
@@ -7,7 +7,9 @@
 #   A basic Simple Oracle Document Access (SODA) example.
 #
 # This script requires cx_Oracle 7.0 and higher.
-# The user must have been granted the SODA_APP privilege
+# Oracle Client must be at 18.3 or higher.
+# Oracle Database must be at 18.1 or higher.
+# The user must have been granted the SODA_APP privilege.
 #------------------------------------------------------------------------------
 
 from __future__ import print_function