--- /dev/null
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0494'); -- dbs
+
+UPDATE config.metabib_field
+ SET xpath = $$//mods32:mods/mods32:subject$$
+ WHERE field_class = 'subject' AND name = 'complete';
+
+UPDATE config.metabib_field
+ SET xpath = $$//marc:datafield[@tag='099']$$
+ WHERE field_class = 'identifier' AND name = 'bibcn';
+
+COMMIT;