Most likely not. While we are not adding anything new to the mod, we did change the "Name" of three existing ships to reduce confusion as to what they are when you see their folder names. That move by itself would cause trouble with old Saves, but we also found issues in the submarine upc files which we have fixed. We found a relatively easy way to check all of the MissionBriefings en masse, find the potential offenders and fix them individually, instead of having to go through each file to look. Hebe Vollmaus released mySH3-Tool v2, and it can do campaign file checks for us (with a pinch of a workaround), so we're able to correct old, existing 'speed' issues in the game, where a ship's cfg file says the ship can go a certain speed, while its sim file says otherwise, and then when in a mis file, the game can't decide what to do, so convoy-keeping suffers. It will take a while to wade through the files. All of that together probably ruins backward compatibility again. But with Hebe's help, the mod will be even more stable than it is (other than the propbeanie-induced verbosity)...
When you say "Thank you so much! It works", does that mean that the MissionBriefing edit did the trick, or the ID change, or a mod change?... lol - Definitely glad you are going once again, though!
