Official web site :

I don't yet if this new major version will be available in the official updates for fedora or in EPEL-6. So, it is available for fedora 13 to 19 and enterprise linux 5 to 6 (if you have the minimal required php version, also available in the repository).

As always :
yum --enablerepo=remi install phpMyAdmin

Discover this new version which come with a lot of new features (ajax, chart, preferences, ...), and post your feedback.