Want to update R AND keep all your packages? Here is the code I used, and this is the website I got it from: https://www.datascienceriot.com/how-to-upgrade-r-without-losing-your-packages/kris/
1. Before you upgrade, build a temp file with all of your old packages.
tmp <- installed.packages() installedpkgs <- as.vector(tmp[is.na(tmp[,"Priority"]), 1]) save(installedpkgs, file="installed_old.rda")
2. Install the new version of R and let it do it’s thing.
3. Once you’ve got the new version up and running, reload the saved packages and re-install them from CRAN.
load("installed_old.rda") tmp <- installed.packages() installedpkgs.new <- as.vector(tmp[is.na(tmp[,"Priority"]), 1]) missing <- setdiff(installedpkgs, installedpkgs.new) install.packages(missing) update.packages()