[R] Help understanding the relationship between R-3.6.0 and RStudio

Bill Poling B|||@Po||ng @end|ng |rom ze||@@com
Fri May 17 20:21:16 CEST 2019

Thank you Mark, I was unaware of the RC distinction and the multiple R version issue.

Appreciate your help.


From: Marc Schwartz <marc_schwartz using me.com>
Sent: Friday, May 17, 2019 2:14 PM
To: Bill Poling <Bill.Poling using zelis.com>
Cc: R-help <r-help using r-project.org>
Subject: Re: [R] Help understanding the relationship between R-3.6.0 and RStudio

> On May 17, 2019, at 2:02 PM, Bill Poling <mailto:Bill.Poling using zelis.com> wrote:
> Hello.
> I do not think I have had this problem (assuming it is a problem) in the past.
> I downloaded and installed R3.6.0 which is indicted in the console when I open R itself.
> R version 3.6.0 RC (2019-04-24 r76423) -- "Planting of a Tree"
> Copyright (C) 2019 The R Foundation for Statistical Computing
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> However, in RStudio the sessionInfo() remains
> R version 3.5.3 (2019-03-11)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 10 x64 (build 17134)
> I also installed the latest version of RStudio 1.2.1335 as well "after" installing R 3.6.0.
> I also rebooted my computer.
> I am not sure why this time the two do not seem to be (for lack of a better word) in sink?
> Thank you for any insight


I don't use RStudio, which is a GUI/IDE on top of R, it is not R.

That being said, a quick Google search supports my intuition, which is that RStudio appears to be able to support multiple R version installations:


RStudio also has their own support venue:


If I read correctly, it looks like you actually installed a "Release Candidate" (RC) version of 3.6.0 for Windows. So you probably want to visit a CRAN mirror and download the release version of 3.6.0:

R version 3.6.0 (2019-04-26) -- "Planting of a Tree"

If you do not want to have multiple R versions on your computer, you can use the normal Windows application uninstall process to remove the older version(s).


Marc Schwartz

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