ISC DHCP 4.1.x will have several new DHCPv6 features that were not in DHCP 4.0.x. These new features include: * Support for the rapid-commit option on the client side * Prefix Delegation support * IA_TA address support * A basic DHCPv6 relay agent * basic DHCPv6 Leasequery support -thanks-
DHCPv6 support in Fedora (and RHEL) is offered by the dhcpv6 package. The project is here: http://fedorahosted.org/dhcpv6/ Regarding upgrading ISC dhcp, it is not necessary to file bugs to request upgrades to ISC dhcp. The upgrade is already in progress, but I cannot simply drop in a new tarball in the package and let it go. Version 4.1.0 should be available soon in Fedora.