Hi We are working with Koha 18.11.05 on Debian GNU/Linux 8. In our library we found in the OPAC it is not possible to sort public lists correctly by copyright date. As far as I know sorting by copyright date would follow the content of MARC 008 position 7-10. But looking at an actual sorting we see the sorting is as follows 2018 2017 2016 2015 2015 2014 2014 2013 2011 2017 <-- here it starts getting wrong 2019 2018 2016 2018 2016 ... Alle these records have correct content in MARC 008 and MARC 264$c. Strangely we found if a record has content in MARC 260$c and 264$c it changes the sort order - even if only MARC 008 should be relevant for the sort order. How can we achieve the correct sort order? Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik@adminkuhn.ch · W www.adminkuhn.ch