[R-sig-Debian] R 3.4.0 for Debian stable and testing

Johannes Ranke jranke at uni-bremen.de
Sun May 14 12:41:25 CEST 2017

Dear all,

With this email I would like to announce the availability of R 3.4.0 for 
jessie and stretch on CRAN. Please excuse the delay, caused by some 
uncertainty about how to deal properly with the incompatibility of R 3.4.0 
with packages compiled with earlier versions that use calls to .C and 
.Fortran in their code as described in


where there is also a summary (but no list at the moment) of affected 
packages, provided by Dirk.

In order to avoid breaking packages without the user being prepared for it, 
I have created a new repository for R 3.4.0, so you need to replace
jessie-cran3 with jessie-cran34 if you are using the CRAN backports on jessie. 
Before the upgrade, you should deinstall r-cran-* or r-bioc-* packages from 
the jessie or stretch archives that use .C or .Fortran as they will not work 
with R 3.4.0. You can replace them by locally compiled versions installed 
from within R using install.packages() or the like.

Packages that have been installed locally (not from .deb packages) should 
be updated using

  update.packages(lib.loc="/usr/local/lib/R/site-library", ask=FALSE, 

I would also like to announce that from R 3.4.0 on, I am signing the Debian 
repositories on CRAN with my new key.

You can import it using

  apt-key adv --keyserver keys.gnupg.net --recv-key 

Please see the README on CRAN for details:


Kind regards,


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