Why do we use the Polish retail version?

The Polish retail version is the oldest officialy released build of the game and has the most glitches of all, this is why it's used for the retail speedruns of this game.

This spreadsheet by CubemasterXD shows the version differences: https://docs.google.com/spreadsheets/d/1Dme8mhrFXSQaAMrqX_8DBW3M_YpYg22cKdYHu-rBN1c/edit#gid=0