I've done some investigation as to updating rails in EPEL to the latest
As part of this I've been refactoring polisher  and have written a
few new utilities to cross reference upstream / downstream dependencies
and output the results in in a tree like manner  as well as to
highlight upstream dependencies missing downstream .
The results of the last utility run  should give a rough estimate of
the work entailed. Dev deps have been included for this run so many
updates are duplicate / unecessary.
I'll look into consolidating this list and taking some of the simpler
updates in the near future, obviously the more eyeballs that we get on
this, the quicker it will go.