Does a serial by any other name smell just as sweet?

One of the most popular ways for researchers to filter their search results is by publication type. An ISSN International Centre  proposal was passed by the MARC Advisory Committee in January 2021 to include additional types of continuing resources defined for the control field (tag 008 position 21) to reflect the full scope of continuing resources covered by ISO 3297:2020. Three code definitions were revised, and six new codes were added. The ISSN Portal now includes these codes, and official network-wide adoption in the 93 national centres is ongoing. Many ISSN national centres started using the codes immediately after their endorsement using their own local systems. So it seems serials’ metadata experts around the world do appreciate this full bouquet of options to specify the type of continuing resource.