v1.60 makes telelocator & decoy beacons "solid" when hitting other robots. Previously, they just rolled through, which could be abused (particularly inside towers) or cause physics oddities when teleporting "inside" other robots.

v1.59 should fix a problem with projectiles (particularly homing ones) going through small robots at a distance. More can be read about this bug & fix here:

http://steamcommunity.com/app/414510/discussions/5/364040166686866314/