Hi :) The coding guidelines still mention Datepicker. And we had a report that the change isn't straightforward and that some documentation would be useful. Any volunteer among the people who have a bit of understanding of the change and the usage? It had been suggestion to also have a ticket about this: https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=31741 Cheers, -- Victor Grousset/tuxayo