There are, as I understand, potential problems with ensuring 'old' scenarios will still continue to work after functional changes have been made to the game engine. I've seen the 'can of worms' comment quite a few times in the posts.
Could one way to resolve this issue be to include a scenario JTCS version stamp? Lets say there is no stamp at all which means the scenario file is pre-V1.05 and therefore any 'contentious' functionality won't be applied when the game is played.
This wouldn't resolve all problems I'm sure but it is a possible way around.
Mind you, the development team have probably thought of this already and rejected the concept.
Just a thought and feel free to point out my stupidity[:-][;)]
BFN,
Martin Heard