Letter from Dr.Guido Dhondt, published in Yahoo Group at 31 Jul 2020:

Dear CalculiX users,

ever since yahoo changed its policy regarding group attachments and searching
I have been looking for an alternative. Finally I decided to create a
discourse group:

https://calculix.discourse.group

I would like to encourage you to change from the yahoo to the discourse group.
In the discourse group, as I understand, information is stored in such a way
that it can be searched and a lot of other nice features (which I haven’t
tried yet) are at your disposal.

I just create the account a few minutes ago, so maybe in future some design
aspects of the page may still change.

At some point in future the use of the yahoo group will be discontinued.

Best Greetings,

Guido