Europa Universalis V Patch 1.3.11 Notes (16th July 2026)

Hello everyone! Today we're releasing patch 1.3.11, which seeks to primarily address Mercenary Spam and make some trading adjustments, along with a fix for imperial circle notification spam. You can find the full patch notes below:

Checksum: b08d

Date: July 16, 2026

Previous Patch: 1.3.10

Economy

• The base trade range is now wider and the merchant capacity penalty for trading beyond it is less steep; more neighboring markets now fall within free range, and stretching past it costs less extra capacity per unit of distance.
• All countries now have a base 10% income from trades (added on top of the previous trade income modifier from crown power).
• Merchant Republics' bonus to trade income has dropped from 25% to 20% as the base has increased for all countries from 0% to 10%.
• Halved the base merchant maintenance cost to ease early-game trade profitability.

Diplomacy

• Reduced Imperial circle leader notifications significantly to lessen notification spam while playing as HRE leader.

Military

• Mercenary pools now refill from local populations significantly more slowly; exhausted companies take much longer to replenish, making sustained mercenary use a harder resource commitment.
• Recruiting a mercenary company from a region now draws down that region's pool of mercenaries available for hire.

Situations

• Fixed the Rise of the Ottomans situation causing the winning Beylik to become the Ottoman Empire instead of the Sultanate of Rum, which also permanently blocked forming the Sultanate of Rum formable afterward.
• The RGO mapmode now refreshes correctly when the Columbian Exchange introduces a new resource; previously the map displayed stale goods names and colors until the next full repaint.

Tooltips

• Merchant maintenance efficiency in the trade panel now shows the actual maintenance cost reduction instead of the raw stacked bonus percentage.

Buildings

• Fixed an issue with Ancient Monuments not being built if the location had a bridge.

Bugfixes

• Fixed a crash caused by a race condition when handling memory for tooltips.
• Fixed a crash when sorting the ruler history view.
• Fixed a crash when retrieving a static modifier name.
• Fixed a crash caused by modifiers trying to use a non-valid province name.
• Fixed a crash caused by trying to add a member to a non-valid international organization.
• Fixed a crash caused by incorrect memory management with entities.
• Fixed a crash caused by accessing already-purged characters.

As usual, here is a list of handy EU5 links:

Be Ambitious!