Hi, here are the changes in the september update.

• When using a mouse or a touchscreen, you can click on the square you want to go instead of using the virtual pad.
• The last level of the first mission (the warehouse) has been simplified. It was too hard too soon in the game according to feedback.
• Several visual glitches have been solved.
• There is a new option to switch to a large screen layout. This is useful when playing fullscreen on a desktop PC.
• New shortcut to quickly restart a puzzle : press R twice on the keyboard.
• Several visual improvements (animations, fonts...).
• Minor bug fixes.
• The music is not ready yet, but a preview is available, you have to enable it in the options.

Also, the game has been released to Steam as a demo. The difference between the demo and the full game is that the demo does not save your progress.

Enjoy :-)