R 4.0 is out Friday, April 24 (American time), so Saturday for me.
It seems I will have to install all my packages for R again. To find out what packages you have, run this R code:
ip <- as.data.frame(installed.packages()[,c(1,3:4)]) rownames(ip) <- NULL ip <- ip[is.na(ip$Priority),1:2,drop=FALSE] print(ip, row.names=FALSE)
To uninstall R:
1. Delete the R app in the applications folder and empty the trash.
2. sudo rm -rf /Library/Frameworks/R.framework
Now, install R 4.0