[R] Problem with updating packages

[Uwe Ligges]

On 27.05.2026 18:01, Karl Schilling wrote:
> I am running R under Windows 11. recently updated R to the 4.6patchhed 
> version. I then copied my packages from my previous version (4.5) to the 
> library of 4.6. Then I updated all packages.
> 
> Since then, I see the following behavior:
> 
> Each time I run "update.packages(ask='graphics',checkBuilt=TRUE)" I am 
> asked TWICE
> 
> "--- Please select a CRAN mirror for use in this session ---".
> 
> And, more embarrassingly, all my Cran and Bioconductor are said to 
> require an update. That also happens when I run "update.packages", say, 
> one hour after my last update.
> 
> And when I run "old.packages()", it seems that all my packages are 
> identified as being old.
> 
> Any suggestions what might be going on?

For a major version change (as from 4.5.x to 4.6.y) we do not guarantee 
API compatibility, hence we cannot guarantee that a package built for 
4.5.x will work under 4.6.y. As a consequence, update.packages() knows 
that everything has to be reinstalled.

Best,
Uwe Ligges






> Thank you so much in advance,
> 
> Karl Schilling
> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide https://www.R-project.org/posting- 
> guide.html
> and provide commented, minimal, self-contained, reproducible code.