[R] About upgrade R

[Stephen Liu]

Hi all,

Win 7 64-bit
R version 2.11.1 (2010-05-31)

I want to upgrade R to version 2.12.0
R-2.12.0 for Windows (32/64 bit)
http://cran.r-project.org/bin/windows/base/

I found steps on following site;
How to upgrade R on windows – another strategy (and the R code to do it)
http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/


I wonder is there a straight forwards way to upgrade the package direct on 
repo?  TIA

B.R.
Stephen L