huw wrote:Well, Child's Play, which advertises itself as compatible with both 1st and 2nd edition, is dated 1989. I don't know when the last 1st edition only module was printed, however.
Egg of Coot wrote:WG8 Fates of Istus predates Child's Play and was also a 1e/2e compatible. I think the first cross edition modules came out at the tail end of 1988. With the introduction of 2e in 1989, the rules transition within the modules was completed.The Egg