0.12.18
As usual, see
- https://github.com/RcppCore/Rcpp/blob/master/inst/NEWS.Rd
- https://github.com/RcppCore/Rcpp/blob/master/ChangeLog
- http://dirk.eddelbuettel.com/blog/2018/07/23#rcpp_0.12.18
for more details.
You can use the CRAN repo with the R package management tools for installation, and the RcppCore drat repo via drat::addRepo("RcppCore")
to access pre-releases.