[R-pkg-devel] [Rd] is.atomic(NULL) will become FALSE

I've sent a longish post to the R-devel mailing list with this
topic here:
    https://stat.ethz.ch/pipermail/r-devel/2023-September/082892.html

In the mean time, the plan is to effectuate the change in
R-devel (the in-development version of R) on Sep.28, ~ 9:30 CEST ( =UTC+2)

Martin