Major changes (full patch notes here):
- Ironman mode
- Steam Achievements
- Religious (non-heretic) rebels
- Women can now die in childbirth, and there can be other complications, like illness and sickly infants
- Added a bottleneck logic to battles where the defender benefits from the surrounding terrain to make the opponent fight on his terms
- Being outflanked is now much more devastating, especially through the center or from two sides
- Support for the metaserver dropped