Hi, As I said, I setup an unimarc install here: http://koha.qa.testing.biblibre.com <http://koha.qa.testing.biblibre.com/> http://qa.testing.biblibre.com <http://koha.qa.testing.biblibre.com/> with patches related to 5579 ticket. - The database is the same as http://koha.master.testing.biblibre.com <http://koha.qa.testing.biblibre.com/> - I played the migration script on qa setup (misc/maintenance/remove_items_from_biblioitems.pl) - Rebuild zebra and launch zebra Please, have a look. We found only one bug in "marcxml export" where we would like to see items in export. Matts tries to paitch it this morning. We had a look on - items crud operations - indexing, searching - circulation basis - batch modification - migration scripts without founding mistakes but it can be not exhaustive. These modifications needs to be tested with Marc21 too. Thanks, Claire.