I may be confused, but shouldn't the Latest Early Release have a higher version number than the Latest General Release?
Latest General Release: 5.1.3.005 (2013-08-23)
(view release notes) The latest Generally Available firmware from Barracuda Central.
Latest Early Release(s): 5.1.3.004 (2013-03-25)
(view release notes) The newest version of firmware available for early access from Barracuda Central.