Goodman Games

Just wondering which of the DCC are 3.5 and which are 3.0. Will 3.0 books eventually be reprinted for 3.5?

This question was asked earlier and here is the reply:

DCC #1 and #2 are both 3.0. They were both released prior to the D&D 3.5 update. I don't have any plans to update #1 and #2 to 3.5 at this point, since they're low-level modules and there really aren't that many important changes. But all DCC modules going forward will be 3.5 compatible. Hope that helps!

But, actually both DCC's #1 & #2 have been re-released in a 3.5 version. The cover art is different (at least for DCC#2, not sure for DCC#1). The 3.5 version of DCC#2 features a one-eyed lizardman? on the front while the 3.0 version has an Ogre in a cave lounging around a campfire.
The 3.5 version of DCC#1 features Wererats? fighting an adventuring party in a mine (as I said earlier, I'm not sure what the original cover art was on DCC#1, or if it changed at all).

Hope that info helps,
Vanulf