I know how to use the save/load expression and it works great, but the problem is whenever i update my game to a newer version on a hosting site, it can cause a lot of problems with people and there saves, some will get visual bugs, some will get code bugs, so my question is how do i really update a game safely that works with old saves but can start using the new objects or code i added safely. If someone gets a visual bug it will save then they are stuck with this visual bug.