[R-SIG-Mac] MacOS binaries for R-4.6

[Jeroen Ooms]

Hello,

I was wondering if there is an update to what will be the SDKROOT and
MACOSX_DEPLOYMENT_TARGET for R-4.6-arm? This way we can match the
settings in R-universe and bioconductor.

I see binary packages are now uploaded to a new path:
https://cran.r-project.org/bin/macosx/sonoma-arm64/contrib/4.6/. Is
this likely to be the final decision for R-4.6?

Also It would be interesting to know which version of libomp.dylib
will be included with R-macos 4.6 :)

Thank you!





On Wed, Nov 12, 2025 at 9:07 PM Simon Urbanek
<simon.urbanek using r-project.org> wrote:
>
> Jeroen,
>
> the 4.6 binaries are available on CRAN since July. However note that they are experimental since they are built using the same build machine as 4.5. We are in the process of setting up a new VM for R-devel package builds so the target and toolchain will likely change for the arm64 build. With the performance framework updates on arm in macOS 14 it may be worth considering to increase the target correspondingly.
>
> Cheers,
> Simon
>
>
>
> > On 13 Nov 2025, at 01:36, Jeroen Ooms <jeroenooms using gmail.com> wrote:
> >
> > As every year, starting this month, the bioconductor development branch now targets R-4.6 for the planned release in April.
> >
> > Last year CRAN provided MacOS r-devel package binaries way ahead of the release, see
> > https://stat.ethz.ch/pipermail/r-sig-mac/2025-January/015106.html
> >
> > This was super helpful. It would be great if this can be done again early in the cycle, especially if there may be upgrades of clang / libomp planned.
> >
>