[Rd] [patch] giving library() a 'version' argument

Ken Williams Ken.Williams at windlogics.com
Thu Apr 12 16:24:20 CEST 2012

> -----Original Message-----
> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Sent: Thursday, April 12, 2012 7:54 AM
> To: Duncan Murdoch
> Cc: Ken Williams; r-devel at r-project.org
> Subject: Re: [Rd] [patch] giving library() a 'version' argument
> A very important point is that library() *had* a 'version' argument for several
> years, and this is not what it did.

That is unfortunate.  So such a mechanism would need to use a different argument name.

For completeness in this thread, I dug up the fact that it seems to have been removed in the 2.9.0 release:

    o   Support for versioned installs (R CMD INSTALL --with-package-versions
        and install.packages(installWithVers = TRUE)) has been removed.
        Packages installed with versioned names will be ignored.

I'll address Duncan's concerns in a separate message.


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