R is looking much more favorable for C++14 or even C++17 since the 4.0 release in April: https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Using-C_002b_002b14-and-later
It's unclear how well the old Rtools Windows toolchain would support C++14--we can try and see, at least it's gcc 4.9. But as far as CRAN is concerned, I believe we can stop supporting that in April when R 4.1 is released (they test on current and previous x.y versions). Neal On Mon, Sep 28, 2020 at 1:06 PM Wes McKinney <wesmck...@gmail.com> wrote: > hi folks, > > I think this has come up before, but I'm curious what would be the > roadblocks (if any) for upgrading our minimum C++ standard from 11 to > 14. One of the last hangers-on is probably our Python manylinux1 build > which uses gcc 4.8, but is there anything else? The minimum supported > MSVC for C++14 is VS 2017 -- would that cause any issues? > > Thanks, > Wes >