+=head2 Note for upgrading to 0.05
+
+As of version 0.05, the bank authorization code is discarded (AuthCode),
+so that authorization() and order_number() can return the 2 fields needed
+for capture. See also
+cpansearch.perl.org/src/IVAN/Business-OnlinePayment-3.02/notes_for_module_writers_v3
+