[Rd] [External] Re: API updates for R 4.6.0

[iuke-tier@ey m@iii@g oii uiow@@edu]

On Fri, 17 Apr 2026, Iñaki Ucar wrote:

> Dear Luke,
>
> On Thu, 16 Apr 2026 at 21:43, luke-tierney--- via R-devel
> <r-devel using r-project.org> wrote:
>>
>> The installed C header files for R 4.6.0 should now correspond to the
>> C API as defined by the Writing R Extensions manual: All entry points
>> and variables declared in the headers are now part of the API.  This
>> helps clarify the interface available to package developers, and
>> provides the encapsulation needed to allow improvements to internals
>> of R without impacting packages. Many thanks to package developers who
>> helped in developing new API features to make this possible and who
>> worked on moving away from using non-API features.
>>
>> A small number of packages with significant reverse dependencies have
>> not yet completed the transition. CRAN will be hosting transitional
>> versions for these until their maintainers submit updates.
>
> Does this mean that these packages will now fail instead of generating a NOTE?

The unmodified versions will now fail to install and that would
prevent other packages from installing. That is why transitional
versions are needed. About a third of those have already been updated
by their maintainers; updates for mot others have been promised soon.

Best,

luke

>
> Best,
> Iñaki
>
>>
>> Best,
>>
>> luke
>>
>> --
>> Luke Tierney
>> Ralph E. Wareham Professor of Mathematical Sciences
>> University of Iowa                  Phone:             319-335-3386
>> Department of Statistics and        Fax:               319-335-3017
>>     Actuarial Science
>> 241 Schaeffer Hall                  email:   luke-tierney using uiowa.edu
>> Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu/
>>
>> ______________________________________________
>> R-devel using r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
>
>

-- 
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
241 Schaeffer Hall                  email:   luke-tierney using uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu/