IPv6 necessary? recommended? or don't bother?

But are there really no rules created, if the MiaB server get’s an IPv6 assigned and integrates it everywhere? I’m asking, because I didn’t checked it out.

I see. As there is already a more or less simple solution given (see the linked topic above or here, one more time) would it be difficult to include it in the next updates?

Or does it make no sense for now and it would be a more clean solution to get fail2ban to work with IPv6 (as @Eliter mentioned fail2ban should have IPv6 support now)?