jerico-dev/ojs — comment on commit 23c172b25e417715679f0d9621c01c02b1a073aa
File: classes/article/ArticleGalleyDAO.inc.php line 249
By jerico-dev:

DOI support goes into a plug-in in DEV. We need a solution for stable, though, because it seems that PKP will not be able to switch to the current dev branch anytime soon. Introducing the plug-in into stable is not an option, see my emails wrt that. Data in these fields will be migrated when upgrading.