The tags still work, however, you must use the original .dll in order to update properly.
You will get the following error while updating with the modified .dll active. Just replace the modified .dll with the original to update, then reverse the action.
Easy switching, so you don't have to have files all over the place, use the .bak extension! You can have the original and modified readily available in the same place.
The funny thing is that after the patch the tags, for me anyway, seem to be working better (may have just been the map I loaded, different than the one I normally load into.)