I have been working a lot in the project towards a potential release in Nov-Dec 2015. Until then I will disable the old download so people does not get confused.
Many of the new features include: Seamless calibration, no more button pressing! You won't know when the game is adjusting values. 3D overhaul, now all the seaweed is drawn in 3D... expect a lot of grass fields. Better performance, I have increased the performance in around 150% so it runs perfect in a galaxy note 4 GearVR. Better FX, from drops in the helmet to blood. Better movement/breathing detection. Angrier sharks.