Patch 1.4.X are all patches beginning with 1.4. There have been one 1.4.X patch.
- 主条目：Patch 1.4
- Fixed incompatibility issues with map, causing crashes with 1.3 saves.
- Fixed bug where ironman saves where broken on tag change
- Now possible to enforce peace if your colony declares war on others
- Migration only moves the migrating nations units
- Fixed crash in province view if the province being watched migrates
- Native American AI can no longer build non native buildings
- Natives Americans no longer get alerts that they cant build buildings that they cant Build
- No longer possible to get achievements in observemode by selecting a country
- Fixed a bug where AI would have the wrong attitude set towards its vassals, resulting in them not diploannexing them