Hi Michael, I've opened issue #115 on Github four months ago but there is no activity so far. Could you please confirm that you are watching the issue tracker on Github or are you possibly using some other development platform? Just asking since the tags lagging behind the versioned tarballs at CRAN.
Kind regards Andreas. [1] https://github.com/kaneplusplus/bigmemory/issues/115 -- https://fam-tille.de