Here are the major changes (complete list here! ):

- Added a "Depose Antipope" Casus Belli
- Added an "Antiking" faction. The leader usurps the liege's primary title, deposes the antipope and passes papal investiture. The Pope can be called into the resulting war.
- Not possible to set up an antipope within 50 years of one being forcibly deposed
- Fixed bug in Linux where the game became totally unplayable if you ALT+TAB
- Now possible to play in Ironman mode with the ruler designer and mods (but you won't get achievements)
- Significantly reduced the amount of event-spawned troops across the board to better reflect the rebalanced levies
- Fixed crash bug in the Mac launcher
- Fixed religion reformation crash

Here are the major changes (complete list here! ):

- Added a "Depose Antipope" Casus Belli
- Added an "Antiking" faction. The leader usurps the liege's primary title, deposes the antipope and passes papal investiture. The Pope can be called into the resulting war.
- Not possible to set up an antipope within 50 years of one being forcibly deposed
- Fixed bug in Linux where the game became totally unplayable if you ALT+TAB
- Now possible to play in Ironman mode with the ruler designer and mods (but you won't get achievements)
- Significantly reduced the amount of event-spawned troops across the board to better reflect the rebalanced levies
- Fixed crash bug in the Mac launcher
- Fixed religion reformation crash

- Added missing Jewish religious icons
- No longer possible to play as a Jew without the Sons of Abraham DLC
- The "Legitimize Bastard" decision now sets the correct dynasty
- Cathars now have access to the "Absolute Cognatic" succession law
- Jewish priests are now allowed to marry
- The kingdom of Jerusalem decisions to vassalize the Knights Templar and Hospitaller now work
- Heresies are now also shown on the religion page in the ledger
- The Knights of Santiago now have their historical activation date and first Grandmaster
- Fixed a bug where an antipope installed as proper Pope in Rome would get an antipope successor
- Fixed a bug where the Pope could restore himself in Rome infinitely, for astronomical amounts of Piety
- GamersGate users no longer incorrectly get the Steam overlay
- Different platforms don't get different checksums anymore
- You can no longer get a barony level character when pressing the Random Character button
- Added more descriptive text when Ironman is disabled
- Removed some ways in which one could cheat in Ironman
- Disabled autosave to cloud storage option in settings if no cloud storage is available
- Fixed some bugs with the new 'hold_election' effect
- AI: Massively reduced the chance that it will create antipopes, for now
- Fixed an issue with ridiculously powerful Mongol stacks if there were Jews in the world
- Fixed so Shift + I does not act like Shift + Insert anymore
- Religion status changes (Mending the Schism, etc) are now properly reset on resign
- Fixed a bug where most councillor job action events were men only
- Blocked Ultimogeniture for West African pagans
- Limited the intrigue gained from certain successful plots
- Fixed error in 'Viking Raider' achievement script
- Fixed a bug with Zoroastrian Xwedodah marriages not being considered sacred
- No longer possible to select Jews in multiplayer if the host does not have Sons of Abraham

- Added missing Jewish religious icons
- No longer possible to play as a Jew without the Sons of Abraham DLC
- The "Legitimize Bastard" decision now sets the correct dynasty
- Cathars now have access to the "Absolute Cognatic" succession law
- Jewish priests are now allowed to marry
- The kingdom of Jerusalem decisions to vassalize the Knights Templar and Hospitaller now work
- Heresies are now also shown on the religion page in the ledger
- The Knights of Santiago now have their historical activation date and first Grandmaster
- Fixed a bug where an antipope installed as proper Pope in Rome would get an antipope successor
- Fixed a bug where the Pope could restore himself in Rome infinitely, for astronomical amounts of Piety
- GamersGate users no longer incorrectly get the Steam overlay
- Different platforms don't get different checksums anymore
- You can no longer get a barony level character when pressing the Random Character button
- Added more descriptive text when Ironman is disabled
- Removed some ways in which one could cheat in Ironman
- Disabled autosave to cloud storage option in settings if no cloud storage is available
- Fixed some bugs with the new 'hold_election' effect
- AI: Massively reduced the chance that it will create antipopes, for now
- Fixed an issue with ridiculously powerful Mongol stacks if there were Jews in the world
- Fixed so Shift + I does not act like Shift + Insert anymore
- Religion status changes (Mending the Schism, etc) are now properly reset on resign
- Fixed a bug where most councillor job action events were men only
- Blocked Ultimogeniture for West African pagans
- Limited the intrigue gained from certain successful plots
- Fixed error in 'Viking Raider' achievement script
- Fixed a bug with Zoroastrian Xwedodah marriages not being considered sacred
- No longer possible to select Jews in multiplayer if the host does not have Sons of Abraham

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

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