Is it safe to patch this?

[lskovlun]

Another thing I've been thinking anout: Given a game, a patch and some saves, it should be possible to determine whether it is safe to apply that patch without breaking your saves, or determine how far you need to go back to do so safely. There's just one little extra piece of info you need from the savefile, which is easily added using Kawa's build environment.

Thoughts?

[Kawa]

As literally just discussed in the chat on Conversations with Curtis, a script patch is safe to apply if your save doesn't use it. So a room can be patched if you're not in there. System scripts are... less easy to judge.