From Europa Universalis 4 Wiki
Patch 1.17.X are all patches beginning with 1.17. There has so far been one, not including 1.17.
- Main article: Patch 1.17
1.17.1 is a hotfix originally released with Checksum 6704.
- Fixed tendency for AI to end up with too much artillery and cavalry late game.
- You can no longer change difficulty after starting an Ironman game.
- Fixed issue where an Ironman game would no longer be valid for Achievements after loading it by pressing Continue.
- Fixed issue where settings were overwritten after loading a "Continue" save game, potentially disabling Achievements.
- MP: Fixed out of sync when upgrading fleets.
- Forum: Patch 1.17.1