install.packages("installr")
library(installr)
updateR()
R Setup and Maintenance
Keeping R Up To Date
The info bar above the console window indicates the R version you are using. When a new version of R is available, it must be done in the basic R interface (RGui) (i.e., not in RStudio).
After R has been updated in the basic R interface, you will probably need to tell RStudio where to find the version you would like to use (usually the latest) under Tools > Global Options.
Keeping RStudio Up To Date
RStudio will let you know when its time.
Package Updates
Its good to keep your packages up to date. There will be a time when a package you are using is not working because some of the dependencies have been updated and your main package has not.
Github Setup
Use these instructions for setting up RStudio to use Git. https://happygitwithr.com/