Most modern mods, including Lance McDonald’s famous 60 FPS patch , are specifically built for the v1.09 executable. Modding CUSA00900: Key Enhancements

. Always back up your save data before applying a new update, as version mismatches can result in "Save Data Corrupted" errors.

Modding Bloodborne v1.09: How to Install DLC Mods for CUSA00900

: Your game folder should now contain a folder named CUSA00900 . 2. Enabling the DLC

: Released as the final official balance update from FromSoftware, version 1.09 contains essential code dependencies required by The Old Hunters DLC and functions as the target version for modern performance patches.

For external mods (like the Randomizer or First-Person mod):