Started with v0.12 IIRC?
Still, while I can absolutely understand where you're coming from and wanting to re-polish older content, be very careful with that, as there will come a point (if it is not already there) where you can't really keep up with polishing up older content and people tend to lose interest if a game does not get updated in a long time, as it usually marks the death/abandonement of said game.
That is why we so often get buggy releases in AAA gaming, at some point, someone has to say, stop, good enough, ship it. Otherwise those pesky perfectionist artists will never be satisfied.