The latest BIND 9 README says
...
- IP version 6
Answers DNS queries on IPv6 sockets
IPv6 resource records (AAAA)
Experimental IPv6 Resolver Library
What is this "Experimental IPv6 Resolver Library"? Is it actually a new
library that I couldn't find or just IPv6 support added to the old bind 8
compatible library or to the lwres library/daemon?