This tool will allow you to seamlessly transfer your parameter edits between versions of Ultimate. Requires your .prc files be converted to .xml using ParamXML.
Simply generate a .pkl patch file using your mod's xml and the vanilla .prc file converted to xml (both from the version you're migrating from). Then apply the patch to a vanilla .xml of the version you're migrating to, then convert the .xml back to a .prc, and you're done! That easy.
Full usage information:
==================== SSBU PatcherXML Help ==================== Usage: python SSBU_PatcherXML.py original_file modified_file/patch_file mode [type] mode: -s or -p -s mode takes an original file and a modified file (Must be 2 XML of the same file and version of the game). It generates a .pkl patch file with all of the differences between the 2 files. -p mode takes an original file and a patch file generated from this same script. Outputs a new file with all of the changes applied to the original file' [Optional] type: -c. Specifies that the files are a multiple character file (Like fighter_param.prc for example). otherwise its treated as a common file.This help can be accessed by using the command
python SSBU_PatcherXML.py -help
Make sure to append '-c' (without quotes) to your patch generation or patch application command for fighter_param.prc, fighter_param_motion.prc, or any other .prc file with multiple entries for characters etc.