I haven't been making a post for each small update but I've made a few recently:
2015-08 - 0.5.1.5 and 0.5.1.6
- Revamped collision damage calculations.
2015-08 - 0.5.1.4
- XP earned now syncs with Steam Cloud.
- Edited a default vehicle and added a new one (http://i.imgur.com/sAWhKny.jpg)
- More minor weapon balancing.
- Maybe a little fewer crazy physics events when colliding with laggy vehicles (there's still SOME crazy physics, but I've been experimenting).
- Removed the old screenshot code - Steam supports this anyway with F12.
2015-08 - 0.5.1.3
- Multiplayer work that should make things generally smoother and improve "teleporting" laggy vehicles.
- Stopped vehicle damage sounds playing when setting initial health on vehicles when joining games.
- "Proximity firing" mode isn't the default anymore, but made the keys to switch it show in the GUI.
- Sped up unlock progress a little again.
- Some minor weapon balancing.
- Updated "how to play" screens with the proximity firing mode key.
Expect new parts in the next serious update: Full turret versions of the MMG and Medium Cannon and a non-turret version of the Large Cannon.