Try the installr package. It was designed for this purpose.

On Fri, Nov 10, 2017 at 11:49 AM, Bond, Stephen <stephen.b...@cibc.com> wrote:
> Is there a utility which will allow me to upgrade my R version and update all 
> packages from the old version?
> If I manually upgrade, then I have to manually re-install 50 packages.
> Thank you.
>
> Stephen B
>
>
>         [[alternative HTML version deleted]]
>
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