Thank you both for your responses. Based on Ivan's dig into the comments, it seems there is ambiguity, even by the CRAN team. Still, it looks like it would be preferable to (and would not cause any harm to) include the base packages in DESCRIPTION if they are used at all in a package, whether by :: or imported from in the Namespace. I'll update my packages accordingly.
Noah [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel