I'm still on 6.3.3, so apologies if these have been addressed in 6.4.x, but I didn't see anything about them in the what's-new.
There are two script functions I'd love to see added:
SetEnv (compliment to GetEnv)
GetBinaryType (from WinApi.Windows)
I've added externals for these, but native script functions would be cleaner, and I suspect both would be widely used.
Thanks!
Steve