Eigen 3.4.1 release?

[traversaro]

Comment:

I saw that we the autotick bot updated Eigen to 3.4.1 . However, I could not find any reference to Eigen 3.4.1 in Eigen website or tags. I just found a 3.4.1 branch, but I am not sure if that is intended to be a release. I will open an issue upstream in Eigen, but anyhow I wanted to open an issue here to track this.

[traversaro]

Downstream issue: https://gitlab.com/libeigen/eigen/-/issues/2702 .

[jcarpent]

I do agree with @traversaro, there is no official release of Eigen 3.4.1. In addition, this branch is causing compilation errors on upstream projects. I do think this new release on conda-forge should be marked as deprecated or irrelevant.

[jcarpent]

Here is the list of all releases: https://gitlab.com/libeigen/eigen/-/releases

[traversaro]

Upstream confirmed in https://gitlab.com/libeigen/eigen/-/issues/2702 that 3.4.1 branch is not a release. I think we should mark 3.4.1 as broken, and remember to avoid using the build number 0 once 3.4.1 actually gets released. I can't easily to a PR to mark Eigen as broken as for a week I only have smartphone access, so if anyone wants to do it it is welcome, thanks! fyi @conda-forge/eigen

[traversaro]

As a follow up, the bug that created compilation errors with the "fake" 3.4.1 release was fixed in https://gitlab.com/libeigen/eigen/-/merge_requests/1412, so we should be fine when the "real" 3.4.1 release is released.