The info above was ascertained from the D:OS 2 exe btw. The exact same thing can be found in D:OS 1 and EE as well.

Based on the changes I've seen so far, the scripting engine hasn't changed much at all. The changes I've seen so far consist of the new INTEGER64 and GUID data types. as well as separate type id-s for Trigger, Character and Item names (they are not STRING-s anymore, they have their own TRIGGERGUID, CHARACTERGUID and ITEMGUID types, that are actually aliases of the builtin type GUID).

I'll summarize the changes in Osiris functions (quite a lot of changes there!) in a follow-up post.