Saint Petersburg Institute of History of the Russian Academy of Sciences announces the release of the next volume (XL) of the collection of articles “Auxiliary Historical Disciplines” (ISBN 978-5-86007-954-0; ISSN 0130-0865). This year it has changed the publication format. From now on, it will be published in a mixed format: as an electronic publication on our new website www.auxiliaryhistoricaldisciplines.ru and at the same time in the usual printed form. Electronic publication in full-text format will precede the paper version. The emphasis on the open electronic version will help, as we hope, both the dissemination of the collection and its recognition.