Conrad put out a new minor release 5.200.1 of Armadillo yesterday. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close to a Matlab.
Changes in RcppArmadillo version 0.5.200.1.0 (2015-06-04)
Upgraded to Armadillo release 5.200.1 ("Boston Tea Smuggler")
orth()for finding the orthonormal basis of the range space of a matrix
expanded element initialisation to handle nested initialiser lists (C++11)
workarounds for bugs in GCC, Intel and MSVC C++ compilers
Added another example to
Courtesy of CRANberries, there is also a diffstat report for the most recent CRAN release. As always, more detailed information is on the RcppArmadillo page. Questions, comments etc should go to the rcpp-devel mailing list off the R-Forge page.