Version 1.13.0 is planned for release on 9 March 2019 (on Google Play).
It will include a slight rework for the achievement system.
The Diamond rewards for most achievements will be readjusted.
Achievements that have similar objectives (e.g. "destroy 5 planets" and "destroy 10 planets") are grouped together into categories. Completing the first achievement in the category unlocks the second one, completing the second achievement unlocks the third, etc.