Automating package updates after major version change

?install.packages  (argument dependencies)
which is explicitly  pointed to by ?update.packages

"Warning

Take care when using dependencies (passed to install.packages) with
update.packages, for it is unclear where new dependencies should be
installed. The current implementation will only allow it if all the
packages to be updated are in a single library, when that library will
be used. "

Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

After upgrading from -3.6.2 to -4.0.0 I ran 'update.packages()' and spent
time rebuilding dependencies, too. Is there a script or method that
automates package updates after a major version change in R?

My web searches on this topic found tips for only regular package updates
without rebuilding multiple dependencies.

TIA,

Rich

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