They should probably hold off on releasing a trainer for the current version. From what I understand, the game is essentially complete and they're just polishing up now, which likely means we'll see a patch every week or two...
I think you're right. We're already up to version 0.9.8 something, and that was just a few days ago.
I predict at LEAST another patch every week until they hit 1.0--and probably after that, as they find new bugs in the post-release tweaking phase.
If it were me, I'd hold off until the full release--otherwise the CH guys would just run themselves ragged trying to keep up, tearing their hair out for no reason.