List of old Game Versions

Versions are usually upward and downward compatible. An exception to this is the addition of customizable controls with beta 1.6 making all newer versions incompatible with beta 1.5 and older.

Compatibility can be important when a new bug occurs. You might be able to avoid such a bug by loading your save with an earlier version not having this bug. After bypassing the critical situation  you can save and continue playing with the latest game.

Demos
The first Demo for Pokémon Godra Version was released on October 13th, 2013 and updated weekly until January 2014. Shortly after Beta 1.0 was released.