ps3 game versions clarification

im noticing a lot of ps3 games say (v02.00) but then there are updates 1.01 or something, or even 2.00. example like "Metal Gear Solid 4 - Guns of the Patriots (USA) (En,Fr,De,Es,It) (v02.00)" has a Metal Gear Solid 4 - Guns of the Patriots (USA) (En,Fr,De,Es,It) (v2.00) (Disc) (Update). so is the 02.00 the based unpatched game or is that the updated? im kinda assuming 02.00 on games is base sense a lot of games start out with that numbering. just odd its not 1.0 an gone up from there.