That assumes he considers 1.0 the finished product. There is no rule that says version 1.0 has to be a non-beta release.
As far as v0.88 goes, it is still pretty broken, even with the fixed file for Parker. Many of the detective events don't trigger, along with their derivative events. If you're playing for the sake of playing the game, and not to playtest it, then I would recommend reverting to an older version, before the Parker train events were added.