co-maintainers welcome lssndrbarbieri@gmail.com Alessandro Barbieri Defines new notions of prototype and size that are used to provide tools for consistent and well-founded type-coercion and size-recycling, and are in turn connected to ideas of type- and size-stability useful for analysing function interfaces. https://github.com/r-lib/vctrs/issues https://cran.r-project.org/web//packages/vctrs/vctrs.pdf https://cran.r-project.org/web//packages/vctrs/news/news.html Hadley Wickham hadley@rstudio.com r-lib/vctrs