That's right folks, you can now upgrade stats and evolve air towers in the main (default) branch. Both beta and normal branches are currently the same and submit scores.
As an added bonus we have improved the graphics of the airstrike explosion effect and also made further improvements to the radius line.
Patch Notes
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* Kappa towers now show correct damage and fire rate
* Radius circle should now draw correctly for everyone
* Upgraded fire rate machine guns now sound more in line with their rate
* Upgrading damage on evolved rocket towers now scales correctly
* Tesla beam now renders correctly when upgrading range
* Upgraded damage now works on all towers
* Values are now displayed up to 2 decimal places on the upgrade window
* Massively improved performance of the upgrade window
* Upgrade stats ability removed from tutorial
* Airstrike minimum length reduced from 1 to 0.5
* Airstrike graphical effect improved
* Further radius line improvements
* Maximum grenade tower rate is halved for better balance
* Tanks are no longer affected by the slow dome ability
* Air evolve is now live
* Air evolve causes only planes and blimps to deal 150/400/900 damage every 4 seconds by dropping bombs on enemies below them!
* Evolved air rockets cause 0 damage
* Added smoke trail to planes and blimps to easily identify units that have been hit by an evolved air tower
* Evolve cost for an air tower is 50 coins
* Evolve effect can also be upgraded using the tower stats
* Player airstrike radius reduced from 4 to 3
* Kappa towers now show correct damage and fire rate
* Radius circle should now draw correctly for everyone
* Upgraded fire rate machine guns now sound more in line with their rate
* Upgrading damage on evolved rocket towers now scales correctly
* Tesla beam now renders correctly when upgrading range
Enjoy! ːsteamhappyː