[R] From 2.2.1 to 2.3

[Ulrich Keller]

http://cran.r-project.org/bin/windows/base/rw-FAQ.html#What_0027s-the-best-way-to-upgrade_003f

Antonio_Paredes at aphis.usda.gov wrote:
> Hello everyone.
>
> Currently I am running R 2.2.1 (windows), and I will like to update to 
> 2.3. I wanted to ask if it is possible to update without having to removed 
> 2.2.1; or do I first need to delete 2.2.1?
>
> Thank you very much.
>
> Tony
>
>
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