The 2.0 update seems to still be in beta, so it's technically not out yet. In case you want to play the beta, I'll copy and paste what I said to someone else who had this question.
If you bought it on here, you can download dice-beta-200-itch.apk and install that, but unfortunately the dev doesn't seem to have set up betas on Google Play as of yet, so without buying it again you're out of luck. (Not sure if Google obstructs indie devs from submitting betas or something, wouldn't surprise me)