Works similarly to utils::install.packages() but doesn't install packages that are already installed, and also upgrades out dated dependencies.

update_packages(packages = TRUE, dependencies = NA,
quiet = FALSE, build = TRUE, build_opts = c("--no-resave-data",
"--no-manual", "--no-build-vignettes"), repos = getOption("repos"),
type = getOption("pkgType"), ...)

## Arguments

packages Character vector of packages to update. Which dependencies do you want to check? Can be a character vector (selecting from "Depends", "Imports", "LinkingTo", "Suggests", or "Enhances"), or a logical vector. TRUE is shorthand for "Depends", "Imports", "LinkingTo" and "Suggests". NA is shorthand for "Depends", "Imports" and "LinkingTo" and is the default. FALSE is shorthand for no dependencies (i.e. just check this package, not its dependencies). One of "ask", "always" or "never". "ask" prompts the user for which out of date packages to upgrade. For non-interactive sessions "ask" is equivalent to "always". TRUE and FALSE are also accepted and correspond to "always" and "never" respectively. Force installation, even if the remote state has not changed since the previous install. If TRUE, suppress output. If TRUE build the package before installing. Options to pass to R CMD build, only used when build is TRUE. A character vector giving repositories to use. Type of package to update. Other arguments passed on to utils::install.packages().

package_deps() to see which packages are out of date/ missing.
# NOT RUN {
# }