Updating Software
If needed, you can update R itself by downloading and installing a new version from the R Project website (by default, after restarting the RStudio, it will start using the newest version of R from those installed on your computer). RStudio can be updated, for example, by clicking Tools > Check for Updates.
Updating R and Its Packages
The R Core Development Team continuously hones the R language by catching bugs, improving performance, and updating R to work with new technologies. As a result, new versions of R are released several times a year. The easiest way to stay current with R is to check the CRAN website periodically. The website is updated for each new release and makes the release available for download. You'll have to install the new release. The process is the same as when you first installed R.
Don't worry if you're not interested in staying up-to-date on R Core's doings. R changes only slightly between releases, and you're not likely to notice the differences. However, updating to the current R version is a good place to start if you ever encounter a bug you can't explain.
RStudio also constantly improves its product. You can acquire the newest updates just by downloading them from RStudio.
R Packages
Package authors occasionally release new versions of their packages to add functions, fix bugs, or improve performance. The update.packages
command checks whether you have the most current version of a package
and installs the most current version if you do not. The syntax update.packages follows that of install.packages.
If you already have ggplot2, reshape2, and dplyr on your computer, it would be a good idea to check for updates before you use them:
update.packages(c("ggplot2", "reshape2", "dplyr"))You should start a new R session after updating packages. If you have a package loaded when you update it, you'll have to close your R session and open a new one to begin using the updated version of the package.
Source: G. Grolemund, https://rstudio-education.github.io/hopr/updating.html
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.