BetaChangelog.gg
Hearts of Iron IV
Steam News 13 May 20268d ago

HOI IV - Open Beta Update V

Generals! Before we head out on our 4-Day LOA we wanted to give you another OB update. Give it a try, leave us a lot of feedback here, and we'll be back soon to take it all in and make potential adjustments. How to join…

Update log

Full Hearts of Iron IV update

The complete published notes, normalized for clean reading and source attribution.

Extracted changes

8 fixes2 additions13 changes0 removals
  • Compatibility
  • Gameplay
  • Performance
  • Fixes
  • Maps
changedHow to join this Open Beta:
changedThis beta client is Case Green v1.18.1.0.9197 (01c8)
changedTo install Open Beta client, follow the instruction below:
changedSelect the beta branch called open_beta
changedIf you are already on the Open Beta client, you should get an update automatically.
changedFinally, to report any issues you find, in relation to this beta, please use the bug report forum and make sure to include the version you’re using. That way our Jira won’t go nuts trying to figure out what bug report belongs to what.

Generals!

Before we head out on our 4-Day LOA we wanted to give you another OB update. Give it a try, leave us a lot of feedback here, and we'll be back soon to take it all in and make potential adjustments.

How to join this Open Beta:

This beta client is Case Green v1.18.1.0.9197 (01c8)

To install Open Beta client, follow the instruction below:

  1. Right-click the game in your library

  2. Select Properties from the drop-down menu

  3. Select Game Versions & Betas

  4. Select the beta branch called open_beta

If you are already on the Open Beta client, you should get an update automatically.

Finally, to report any issues you find, in relation to this beta, please use the bug report forum and make sure to include the version you’re using. That way our Jira won’t go nuts trying to figure out what bug report belongs to what.

Steam post image

Open Beta Update V Notes

Gameplay

  • Made lend lease default to max amount for 'once' and to 100% for 'percentage' modes

  • Updated supply tooltip to show more careful where all supply is coming from

Stability & Performance

  • Fixed performance in very large scale naval battles (1000+ ships)

  • Fixed a dx11 rendering bug

AI

  • Fixed a bug where England could not build improved battleships

  • Extensive rework of italian naval equipment

  • The AI will now train their troops more often

  • Updated generic taskforces so they are a bit more sensible

  • The AI will try to train their ships a bit more opportunistic

  • The AI will be a bit more sensical with picking a homebase for its standby fleet

  • Added logic to prevent the AI from assigning too many patrols to support naval invasion

Modding

  • AI objectives will respect blocked naval regions now and not consider them for naval mission assignment anymore

Bugfixes

  • Fixed a bug where ships were partially considered for supply need

  • Fixed a bug where USA was unable to build 1940 CVs

  • Fixed a bug where a strike force sometimes gets stuck on an invalid target and stops working

  • Fixed a bug where wrong snow modifier values were shown + fixed a bug where the leader snow adjuster didnt work as intended

  • Snow attack penalty is now shown on the move-arrow tooltip

  • Removed legacy plane techs from BBA-enabled starts for 36 minor nations

  • RI Bolzano in the 1939 OOB now uses the correct ship_hull_cruiser_2 (Bolzano Class)

  • Convoy raiders won't join or reinforce a combat unless there are enemy convoy's to shoot at

  • Fixed a crash related to carrier airplanes being deployed

As you were!

(And try to leave this place in one piece while we're out!)

Source

Steam News / 13 May 2026

Open original