Now you should have the latest versions of R and RStudio on your computer. Then, quit the RStudio program, go to the RStudio website, and download and install the latest version. On the other hand, regarding your proposal: if i unistall R 3.2.0, then i also have to remove all the installed packages and the libraries as also ? because with the unistall they dont removed !! Im asking this because maybe when after i install 3.2.1 maybe would be a problem with the packages ? Nevertheless, i would like also to ask you if i download the R version 3.2. If you want to update to the latest version of RStudio, hover over Help on the top menu bar of your Mac, and click Check for Updates. If you have a problem installing Bioconductor packages, you could consider switching to R-3.2.1 which is different in this regard.' Based on email lists and other feedback it appears that this support might be flaky for some users, especially on OS X.

One of the main features of this new release is that it now installs packages over the https protocol instead of http, which is more secure. 'In the last couple of weeks, R-3.2.2 has been released on CRAN.

The comment for the packages was from the coursera MOOCs- :

Updating r in rstudio