It's scheduled for radvd 2.20 but there is no final release for it yet, check

https://github.com/radvd-project/radvd/blob/master/CHANGES

Huh, I thought the version of radvd already had it, but maybe not then..

Just check the link, it's a definitely not yet :)

I did check, thus my reaction. :)

I thought they were ready to release not sure what happened. I'll keep an eye on it.

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radvd 2.20 has now been released, can this issue be re-opened and support for PREF64 be added?

https://github.com/radvd-project/radvd/releases

radvd 2.20 has now been released, can this issue be re-opened and support for PREF64 be added?

https://github.com/radvd-project/radvd/releases

But that doesn't mean it's a FreeBSD port yet?

I’ll do the FreeBSD port next week if nobody else beats me to it. As far as committing to changes thereafter that remains to be seen. It would be nice to change router advertisements GUI to MVC before adding more things.

For those following this issue with an interest in IPv6-mostly networks, checkout the Kea DHCPv4 Option 108 GUI support in #8286.