I saw it a few days ago. Not sure if it has changed in any substantial way, but it's definitely a new edition because the cover has changed. It's now a jacketless hardcover so probably matches Metamaus. I personally prefer dust jackets so I can use dj covers.

When I saw Metamaus a couple weeks ago I noticed that it had mostly unvarnished covers which are a pet peeve of mine because they show wear much too easily. Sure enough, every copy I saw had substantial back cover wear even though they were brand new.