Eigen 3.4.1 and 5.0.0 available

[stefano2734]

See
https://gitlab.com/libeigen/eigen/-/milestones/10#tab-issues

https://gitlab.com/libeigen/eigen/-/issues/2907

https://gist.github.com/SteveBronder/aa19ff60c02ac02de9399d056f730da6

Perhaps here some improvements possible with this new version.

PS: 3.4.1 und 5.0.0 available since 2025-09-10.
There are some breaking changes in 5.0.0 and many bugfixes, which often backported in 3.4.1.

https://gitlab.com/libeigen/eigen/-/releases/5.0.0

So you are the expert of your code to check for changes or new possilities.

So perhaps 5.0.0 is not compatible and this is also an information.