The GWX 1.04 Teaser Thread...

[melnibonian]

Originally Posted by ichso

I had a career going on at SH3 1.4b without any supermod.
It was no problem switching to GWX 1.03 and continuing my current career so I don't think that this will become a problem.

As a rule of thumb if you have a saved game in a flotilla/harbour that is supported by GWX there will be no problem with your career. Due to the fact that GWX improves almost all flotilla and harbour files usually you encounter problems.