From Fedora Project Wiki

An attempt should be made to update the IPv6-related pages in order to reflect the latest state of packages and necessary (if any are needed) configuration methods in the "current" release (F20); as well as the history of IPv6-related packages that were pushed to stable releases of Fedora, and/or that were merged with the corresponding stable releases of packages (e.g. iptables-ipv6 --> iptables).