upgrade

lately i been using the 2.1 and havent been on the forum for awhile.. so now im on here and i see this jj upgrade and im thinking of upgrading, but if i was to upgrade will i loose any features from the 2.1... i saw sticky but i dont know if theres any more feautures that i can loose what do ya think(is trim mode the same)

Why not just try it?

yeah im going to do that i have to format my memory card before i upgrade right

Nope, just but the bin file at CF root and do it the usual way.

However, after it's installed it is highly recommended that you reformat all drives with the new OS.