The v5.6.1 Hotfix corrects an elusive issue in which the mod would crash when conquering Chang'an in the mid-to-late game, overhauls and rebalances javelin and polearm damage against horses and elephants, enables Surround Sound (EAX) with DSAOL, as well as finalizing some minor bug and issues that still remained from the v5.6 Update. This Hotfix is not necessarily required, however it is highly suggested to install.