Forum:Original giant germ question

Ok, here's the question i have. I haven't played the game for a couple of years and i was just looking up cards and i found that newer version of the giant germ say you can summon up to 2 giant germs to the feild.

However i have two original giant germs that say you can summon any monsters with the same name to the feild. My whole deck is bascily centered around that. I was just woundering, since "newer" versions of it have a different effect, if i play the older ones should i fallow what the new cards say, or can i just play like i always have with that card?