Source:
https://aw.my.games/en/news/general/update-039-now-available
Not sure why this update is labelled 0.39, as it would suggest a major version update. Since 2017 major updates usually come with a theme of sorts, like new progression lines, new Spec Ops missions, Battle Paths, or major rebalance, but this does not seem to fall under any of them.
As for "Centauro 120 exploit", you can check the thread as linked below: