The error handling system has been updated to be less austere.
Rather than interrupting the player's game with an error message, bugs will now simply appear as glitches (unless it's something severe). If a bug occurs it will usually be completely unnoticeable. If it's a bigger bug there might be a small glitch hiccup or at worst the game may soft-lock until the player presses a button.
Also, there was an issue where the player could defeat Inquisitor Lugae, go downstairs, and walk out the front door. This would trigger another confrontation with Lugae, effectively trapping the player in a loop if they did not know where to go. This has been fixed.
Just a reminder to all players! Sometimes Steam does not give an automatic update if it is too small. If ever in doubt, simply verify your game files. It will force an update, no matter how small, and you can be confident you have the most up-to-date version.