l...@gnu.org (Ludovic Courtès) writes: > myglc2 <myg...@gmail.com> skribis: > >> I can assure you that if our users do guix pull and invisibly get a new >> R release, > > They need to to ‘guix pull’ *and* ‘guix package -u’. > >> their analyses will from time to time break. So we may want a simple >> way for them to back down to a previous release. So.. I am thinking it >> would make sense to keep previous versions of R in the recipe. What do >> others think? > > I don’t use R myself; keeping a couple of R versions would be fine, > though R packages would always be built only against the latest R.
I had forgotten that you are also building many packages. Given that, an update to the R guix recipe may break some packages. So all the packages should probably be tested as part of an R recipe update. Do/did we do that? As regards keeping a couple of R versions, if we don't keep the associated packages it will have limited usefulness, so I withdraw the suggestion.