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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), did away with Eigen::all, see the release notes (fourth bullet point under breaking changes). (Also note that they changed the versioning scheme so Eigen 5.0.0 corresponds to 3.5.0 under the old scheme.)

It appears that the preceding Eigen 3.4.0 introduced Eigen::indexing::all (see its release notes) and that is still available in 5.0.0 too.

You already know this because your code in src/utils.h is prepared (in the most refined scheme I have seen ;-) indexing::all also works Eigen 3.4.* and is 'good enough' for CRAN).

So if you could get this to CRAN before we update, a new RcppEigen would not break mmrm. If you don't it breaks 😞 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 0.0.2 ?) we would appreciate it.

Reacted by Daniel Sabanes Bove

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1. danielinteractive

   self-assigned this

   on Sep 30, 2026
2. danielinteractive commented on Oct 2, 2026

   

   danielinteractive

   on Oct 2, 2026

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   Thanks @eddelbuettel for the heads up, when do you think you release RcppEigen? I have a couple of important changes I would like to get into mmrm over the next 1-2 weeks, would it be early enough then to release it in 2 weeks say?
3. eddelbuettel commented on Oct 2, 2026

   

   eddelbuettel

   on Oct 2, 2026

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   Howdy -- that's why I pointed at our summary issue RcppCore/RcppEigen#151 which shows several dozens filed with a handful merged and (IIRC) on updated at CRAN. So it will like be weeks not days. We also have an open issue with StanHeaders / rstan that still needs resolution. That said, all the 'more obvious' ones are in that issue.

   tl;dr: You have time. And once we get to crunch I will certainly come around again with reminders. Thanks for being attentive and the prompt reply.

   Reacted by Daniel Sabanes Bove
4. danielinteractive

   closed this as completedon Oct 8, 2026
5. eddelbuettel commented on Oct 8, 2026

   

   eddelbuettel

   on Oct 8, 2026

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   And thanks for already getting this to CRAN (along with all your other pending changes).

   Reacted by Daniel Sabanes Bove

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