How is it possible that in 2020 there is still no IPv6 support ?
IPv6 is not a "minor, nice to have thing" to be left to "when there is some time".
Often people complain that there are many contents that don't have IPv6 support but then products that should have it ready don't as well.
This type of thing should be priority of any other module or feature and even bugs to be fixed. IPv6 is not an optional thing really.