These two fields allow to specify a different default assignee for ticket opened against this package in bugzilla. Note: The EPEL field is always displayed for packages in the 'rpms' namespace regardless of whether it is used in bugzilla or not.
99b6793
update to 3.0-rc2 also build in ipv6 for the reasons documented by notting here http://lists.fedoraproject.org/pipermail/kernel/2011-June/003105.html