hello, little gamedev pro tip from me to you: always put a version number in any file your game saves externally. this includes save files but it also comes in real handy in config files since if you change the way your game's configuration work you can use it to invalidate or upgrade a user's previous config!
if you havent done this yet, it’s not too late! as soon as you want to implement it (even post launch) on the data reader, have a check to see if a version key even exists, if not, we can assume its the “old version” of data and the next time you save the data, add the first version key :)
