To everyone who does not know yet Zerg upgrade their units differently now in the form of individual upgradeing. For example if you want to upgrade your zerglings you would go to where every that may be and when its upgraded its attack and defense (I think depending on the unit there might be more) for the zergling gets upped.
Sorry Bthammer45, but Blizzard changed it back to the way it was in SC1, because(at least the reason they give anyway was) that playing with/against zerg became predicable.
Lol, try the SC Wiki, its pretty accurate and updated. Though, I think we can play on the idea of the upgrades being more diverse... -Psi
Well I found it on http://www.scraftwiki.net/Ultralisk while reading about the ultra and this is what it said The StarCraft II Ultralisk is even more deadly than its StarCraft I equivalent, sporting more health, higher damage, and the ability to damage all units directly in front of them. The new type of upgrades for Zerg where one unit is upgraded individually, instead of general upgrades, will also increase armor and damage even further for the Ultralisk. The newly acquired ability to burrow makes these beasts into even more dangerous opponents. Also every zerg unit on there has this kind of upgrade thing. I think this is a cool idea gives you more of a ability to customize your units depending on what you want to use and seems to make more sense in the long run.
Wow, that's out of date! It was like that in May, but changed back to the old way in June. Try the wiki in my sig; at least the references there have dates.
So wiki is the most up to date website because I have been looking at it for a while but wasen't sure what was included and what wasen't.