Most events and endings are determined by your Corruption level. In version 1.0.4.8, certain NPC interactions only trigger if this stat is high enough.
The patched version includes expanded dialogue for minor NPCs that hints at hidden item locations (like the "Secret Key" for the basement).
Unlike earlier versions that featured placeholder text or incomplete sub-plots, version 1.0.4.8 features the fully realized script, including all alternate endings and character resolutions.