New features and changes in V2.2:
Text rendering is completely removed.
D4 theme has new gear and speed textures.
All textures are now rendered with OpenGL.
Real-time scaling support (no need to restart the game anymore).
Some people had encountered issue since V2.0 and above.
But unfortunately I couldn't reproduce the bug to understand what happened.
If you are still having issues, please consider using old version instead. (below V2.0)