I played the 64-bit version of 2.3. The Window screen is square now like a Gameboy now. And the map and health bar are not colliding. It appears that the locked doors that monsters open now are remaining unlocked after they close again. It mentions in one of the screens on the Main Menu something about saving prisoners. I'm guessing this has to do with completing the herb/book quests. Though it's not clear. There was a residue or two green squares left over on the completion screen that appears after you descend the ladder. (See Below).