Does anyone know if DHCP+RADIUS supports RADIUS accounting in v6?

cri cri. No body knows?

Try the demo version on the virtual machine...

P.S.
I'll bet $1 that "DHCP + RADIUS NOT supports RADIUS accounting in v6" )

nobody777: We tried it with v6 and v6.1 and It doesn't support dhcp accouting yet!.
An approach to get that would be to write a script to take a snapshot of counters and update a myswl table for now.

someone promised to do?

No one does!.
It would be great to do that!. Actually we are doing so adding a script into Mt box and post data into an url which is updating a mysql table.

Come on Official support for MT. It would be great to have an answer for many people who are interested and no answer is given.
There are lots of posts regarding this without answer at all!.