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A new Armadillo version 3.800.0 is now out. Conrad picked a new numbering scheme to coincide with the relicensing from LGPL to MPL 2.0. The new version 0.3.800.0 of the corresponding RcppArmadillo package (which still uses GPL 2 or later) is now on CRAN. It also contains the updated version of our paper as the package vignette.

The summary of the main changes follows:

#### Changes in RcppArmadillo version 0.3.800.0 (2013-03-01)

• added .imbue() for filling a matrix/cube with values provided by a functor or lambda expression

• added .swap() for swapping contents with another matrix

• added .transform() for transforming a matrix/cube using a functor or lambda expression

• added round() for rounding matrix elements towards nearest integer

• faster find()

• fixes for handling non-square matrices by qr() and qr_econ()

• minor fixes for handling empty matrices

• reduction of pedantic compiler warnings

• Updated vignette to paper now in press at CSDA

• Added CITATION file with reference to CSDA paper

Courtesy of CRANberries, there is also a diffstat report for the most recent 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.