There have been a few patches with bugfixes/optimizations since the 0.17 launch. Your bug reports are invaluable! Please continue to report any issues you run into.
Additions
Added 10 new attachments
Added ‘Cleared Bonus’ points when getting 90%-100% cleared ratings on levels
Added ‘Accuracy Bonus’ points
Added detailed score breakdown to score and gameover scene
Fixes
Fixed an invisible enemy on Intervention
Fixed killstreaks not always ending at the end of the level
Changes
Biff
Starting Max option lowered from 3 -> 2
Ultimate Activation Time lowered from 3.8s -> 3.5s
Ayumi
Nuke Missile speed increased by 10%, acceleration by 25%
Nuke Missile explosion size increased by 5%
Nuke missile damage increased by 10%
Marcus
Starting Max Missiles increased from 2 -> 3
Ultimate Range increased from 50 -> 55
Carl
Ultimate projectiles count increased from 12->14