1.0.4
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/2020/03/17#rcpp_1.0.4
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")
or install.packages("Rcpp", repos="https://rcppcore.github.io/drat")
to access (pre-)releases.