It is expected the patch would overwrite files and registry entries. It be best to un-hack (or install a fresh copy of the game) and then re-hack it back to English. Unless Larian totally disabled the easy work around.
Keep in mind they probably did fix a ton of stuff, and if all notes were printed, I'm sure the list would be huge enough to fill several posts. This is probably just the most noticeable or most anticipated stuff and more of a summery.
Patch Notes: (google translated)
- Sorting of goods in inventory and in some other operating menus implemented
- Improvement of textures
- More options in the graphics settings
- 3 new customizable buttons for the target system
- Crashes that were caused by the fading system, fixed
- Navigation system has been improved for large creatures such as trolls or demons
- Performance for single-core processors has been improved and added an extra option in the graphics settings
- Problem with the sighting of Story-NPC has been fixed
- "Always run" with frequent use of pause / go buttons has been fixed
- Fading system has been improved
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Notes:
- Patch 1.02 includes patch 1.01
- In order for the optical optimization in power, must be a new game bekonnen [started?]
- The patch currently works for the DVD and the Metaboli version of the patch for the gamesload version will be replenished [released?] Gamesload itself