Bug fixes, candidate for stable release.
also please understand that you are not offering any "try" versions at least! all cool features are locked in the "free" version so if i want to see if the APK and Ios exports work and my game runs on my devices i have to buy a license just to test!?
why not follow the Unity method? make a community edition and force license upon certain budget, or at least in our accounts give us the option for few days 30days for example to test the full version and then we can make our minds if we will buy a license or not. buying without trying is not going to boost sale.
thats my 2 cents.