To update RStudio to the latest version, open RStudio and click on Help > Check for Updates. For Windows, there is a package called installr that can help you with upgrading your R version and migrate your package library.
After installing a new version of R, you will have to reinstall all your packages with the new version. However, if breaking changes happen, it is useful to know that you can have multiple versions of R installed in parallel and that you can switch between them in RStudio by going to Tools > Global Options > General > Basic. That is, your old code should still work after updating your R version. Note: The changes introduced by new R versions are usually backwards-compatible. It is not necessary to remove old versions of R from your system, but if you wish to do so you can check How do I uninstall R?. If your version of R is older than that, download and install the latest version of R from the R project website for Windows, for MacOS, or for Linux If your R version is 4.0.0 or later, you don’t need to update R for this lesson. Alternatively, you can type sessionInfo() into the console. When you open RStudio your R version will be printed in the console on the bottom left. To_install <- unname(installed.packages())įor(lib in to_install) install.If you already have R and RStudio installed, first check if your R version is up to date: This will take a while … # Re-install packages Re-install all previously installed packages. If you followed along, only core packages should remain loaded. # Load or, if necessary, install & load should remain 
# Update R for Windows - best from R, do not use RStudio Some more details on updating R with installr can be found here. Keep in mind that it is not recommended to use installr from RStudio, so use R instead. installr can also be used to install also ‘Rtools’, ‘RStudio’ and ‘Git’.
The most straightforward way to update R on Windows is to use the installr package.
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