The metaphor behind "release" is pretty profound. Released into the wild. Like the book is a injured wild thing that has been nursed to health and now returns to the zeitgeist from whence it came? More like a domesticated thing that we allow in and out through the pet flap in the door?

I am thinking more in terms of 'reader response' theory which argues among other things that the book as a stable thing that the authors have control over no longer exists once it is 'released' into the reader wild. As lit-crit David Bleich once noted, "Knowledge is made by people, not found."