Uh, there isn't an episode 3 yet my friend. The filename is correct. I am just starting work on episode 3 content now.
and fwiw, the version number has nothing to do with the episode number. For example, there might be 2 additional updates after a beta release (before it goes public). It would still add episode 3, but could be version 0.5. Each new beta ADDS an episode. But if I have to make corrections and rebuild during beta, the version number will go up.