[R] Automating package updates after major version change

[Rich Shepard]

On Thu, 14 May 2020, Jeff Newmiller wrote:

> Running R as root, ever, is a completely unnecessary elevation of
> privileges... but that discussion is getting OT as it pertains to OS
> security and stability rather than R language.

Only to upgrade the core package and install/update CRAN packages. All work
is done as a user.

Rich