I don't think they have been updated (I bought them before Final Fade out edition but the product descriptions stay the same).
It is not important for "Haven" because it is mainly a scenarios collection (very good).
Some parts of "I zombie" are in the new "High Rise to Hell" (smart zombies, ragers, some new attributes). The campaign area is still usable. It is a mix of very different things (tremors, psionic, ragers, attributes background).