update R version in windows

However, trying this on Linux Mint gave

  package ?installr? is not available (for R version 3.4.2)

Has the package not been updated yet?


JN


Try the installr package. It was designed for this purpose.

Is there a utility which will allow me to upgrade my R version and update all packages from the old version?
If I manually upgrade, then I have to manually re-install 50 packages.
Thank you.

Stephen B