The modifications and fixes made in the 0.3.1 "stable" build are:

• added specific tests for removing characters forced into tunnels on the ‘subway’ stage
• modified SSAO settings for each stage
• modified specific post effects parameters on game menu (to limit the scope of post effects)
• modified Colour grading for all scenes
• modified character SFX volumes on the game menu
• modified the minimum and maximum distance parameters for the game cameras in each scene
• modified the Unity launch dialogue to not open on OS X by default
• modified trigger volume detections
• modified character system to remove characters that become unstable on the 'subway' stage
• modified train colliders to reduce the potential for erratic physics on the ’subway' stage
• fixed an issue that could stop character’s from exiting the grab state
• fixed an issue that could stop character’s from exiting the slump / standing states (if the character enters a concussive state when slumped)
• fixed an issue that stopped modifications to the graphics settings menu from writing / saving
• fixed an issue that made the drop kick damage modifier not apply
• fixed an issue with the AI spawning system in the ‘waves’ mode (which stopped AI enemies from spawning if the game mode is played multiple times)
• removed the Xinput menu setting (as the menu setting for enabling / disabling Xinput support needs more testing to stop the disabling Xinput process from triggering an exception)

• added numerous punch SFX
• added spatialisation to character falling SFX
• modified / increased brake threshold for grab state
• modified / lowered character jump height
• modified / lowered head-butt damage
• modified / lowered the length of character concussions
• modified / replaced shaders that demonstrated conflicts with Unity 5.3 / Open GL 4.1
• modified / replaced the A side and B side music on the “ring” stage
• modified build number text to ignore image effects on menu
• modified “incinerator” scene to remove / recycle objects that fall in to fire pit
• modified character system to limit the number of wall jumps that can be executed in sequence
• modified the climbing and targeting systems to make executing the rope climbing mechanic easier
• modified the fire simulation on the “incinerator” stage to ignore collisions (to optimise game performance)
• modified the lighting in specific scenes to work with the Unity 5.3 lighting system
• fixed an issue with character idle states not triggering
• fixed numerous Unity 5.3 stability issues with the fan implementation
• fixed Unity 5.3 UI scaling issues
• updated game project to Unity 5.3 (to use OpenGL 4.1 or Metal on systems with OpenGL 4.1 or Metal support)