language: r r: - release
we get R 4.0.2.
sudo add-apt-repository -y "ppa:marutter/rrutter4.0"
would suggest that we are using the latest R version from Michaels repository. However, later, R is fetched using
curl -fLo /tmp/r-4.0.2_1_amd64.deb https://cdn.rstudio.com/r/ubuntu-$(lsb_release -rs | tr -d '.')/pkgs/r-4.0.2_1_amd64.deb
and later installed using gdebi.