A new minor release 0.3.3.4.0 of RcppEigen hit CRAN earlier today, and just went to Debian as well. It brings Eigen 3.3.4 to R.
Yixuan once again did the leg-work of bringing the most recent Eigen release in along with the small set of patches we have carried forward for a few years.
One additional and recent change was the accomodation of a recent CRAN Policy change to not allow gcc or clang to mess with diagnostic messages. A word of caution: this may make your compilation of packages uses RcppEigen very noisy so consider adding -Wno-ignored-attributes to the compiler flags added in your ~/.R/Makevars.
The complete NEWS file entry follows.
Changes in RcppEigen version 0.3.3.4.0 (2018-02-05)
Courtesy of CRANberries, there is also a diffstat report for the most recent release.
This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.