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eddelbuettel

opened on Sep 30, 2026

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Eigen 5.0.0, which we are trying to bring to CRAN in an updated RcppEigen (see issue #151) required a few changes in existing CRAN packages. For yours it was a one-liner but as the updated package no longer used (Rcpp)Eigen it is even easier (as I was able to confirm in Docker container).

So if you could get this to CRAN before we update, a new RcppEigen would not break your package as you no longer rely on RcppEigen 😀 We have been at this update for a long time as there were other issues in affected packages so the upload is not quite imminent -- but getting closer. If you can get this to CRAN (and it seems you may have an upload coming for version 1.4.0 ?) we would appreciate it. Again no urgence but good to remove a blocker.

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1. evandeilton commented on Sep 30, 2026

   

   evandeilton

   on Sep 30, 2026

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   Thanks, Dirk. Confirmed here: 1.13.5 fails on MappedSparseMatrix against RcppEigen 0.4.9.9-2, and 1.14.0 (the version you saw) links to Rcpp only. I'm preparing the CRAN submission of 1.14.0 now and will close this issue once it is accepted.
2. eddelbuettel commented on Sep 30, 2026

   

   eddelbuettel

   on Sep 30, 2026

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   Thanks for the speedy reply, and awesome! Closing this once at CRAN would be appreciated!

   (I didn't look closely at the difference changes made with Claude but I sympathise with the 'now compiles with thousands of warning lines'. I use (Rcpp)Armadillo more myself and always found this rather annoying with (Rcpp)Eigen. A simple local-only workaround is described here in a blog post from July.)
3. eddelbuettel commented on Sep 30, 2026

   

   eddelbuettel

   on Sep 30, 2026

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   That was fast!

   

   And CRAN was even partially down during that time ...
4. eddelbuettel

   closed this as completedon Sep 30, 2026

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