Live editing. With the game running, change a tag value in the editor and
it takes effect there and then. The loop that used to be edit, build, install,
relaunch and walk back to where you were is now edit and look.
Fixed
Mods whose asset count was a power of two produced a broken archive. The
lookup table the game uses to find assets overflowed, and the result could not
be read at all. Four-asset mods were the common case.