A maintenance release 0.9.12 of the RcppClassic package arrived earlier today on CRAN. This package provides a maintained version of the otherwise deprecated initial Rcpp API which no new projects should use as the normal Rcpp API is so much better.
Changes are all internal. Testing is now done via tinytest, vignettes are now pre-built and at the request of CRAN we no longer strip the resulting library. No other changes were made.