The last posted #s, doesn't seem to have anything newer:
RAA - G-27 - November 2010 - 2.5 Gen. - Blue Label with new half height label, new matte gray slide and gray barrel
RAB - G-30SF - November 2010 - 3rd Gen. - White Label, Fixed Sights
RAE - G-35 - October 2010 - 4th Gen. - Blue Label
RAE - G-35 - November 2010 - 4th Gen. - Blue Label
RAM - G-26 - - 4th Gen - Austrian marks
REA - G-34 - December 2010 - red label
RET - G-27 - - 4th Gen - Blue label - 3 mags - night sights
So with RYP your gun was most likely made in mid-late 2011.
(sorry, don't have a link, I use an iPhone app for that forum too).