The NEWS entries summarising the changes for both are below:
0.2.31 2011-11-28
o Upgraded to Armadillo test release 2.3.92 "Loco Lounge Lizard (Beta 2)"
* fixes for linking on Ubuntu and Debian systems
* fixes for inconsistencies in interactions between matrices and
cubes
Courtesy of
CRANberries, there
is also a diffstat reports
for 0.2.31 relative to 0.2.30
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.