# Hearts of Iron IV changelog

> Victory is at your fingertips!

- Vendor: Paradox Development Studio
- Category: Games
- Official site: http://www.heartsofiron4.com/
- Tracked by: What's New (https://whatsnew.fyi/product/hearts-of-iron-iv)
- Harvested from: Steam (app 394360)
- Entries below: 13 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

## Releases

### HOI IV - Open Beta Summer Edition™

- Date: 2026-07-06
- Original notes: https://store.steampowered.com/news/app/394360/view/717908846920601849
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-717908846920601849

- **fixed** — Battalion Adjusters now scale with the Equipment and Manpower status of the Sub-Unit, preventing unintended bonuses from units with disabled equipment
- **added** — Added Essential Equipment Blocks for Heavy Weapons Company, Motorized Heavy Weapons Company, Light Flame Tank, Medium Flame Tank, Heavy Flame Tank, Headquarters Staff, Engineer Staff, Reconnaissance Staff, Military Police Staff, Maintenance Planning Staff, Hospital Group Staff, Logistics & Service Staff, Signal & Intelligence Staff, Naval Liaison Staff, Forward Air Controller, and Special Operations Coordination
- **changed** — Adjusted Essential Equipment Blocks for Helicopter Med-Evac and Helicopter Transports
- **changed** — Superior Tactician Admiral Trait now provides +15% Positioning Bonus instead of +25%
- **changed** — Surface Detection Impact on positioning reduced from maximum +25% to +15%
- **changed** — Admiral Maneuver Skill impact on positioning reduced from +2.5% per level to +1.5% per level

Generals!

Greetings from sunny Stockholm to everyone, I’m Batya, Game Director for Hearts of Iron. The summer period is upon us and I wanted to share some information with you all. Unlike the norm of armies planning summer offensives, game developers actually do the opposite and take time off.
Of course I am not here to just tell you we will be out for the summer, instead I want to talk about the Open Betas we’ve been running in the last few months.

Some of you might have seen, or even opted into, the betas that we ran for Naval changes and also the Anniversary patch. First of all a big thank you to everyone who involved themselves and provided feedback. It is important for us to co-operate with our community to make a better game and that is exactly what we want to do more of.

I’d like to introduce another beta initiative codenamed ‘Sommarfältprov’, which mainly aims at re-balancing different parts of the game. One of the bigger ones has been, for example, Regimental Support that did not entirely hit the mark balance wise. Some other ones are (Sub)Doctrines as well as the long and arduously discussed Line Artillery.

These are all things that we want to take a stab at for the betterment of the game. The person spearheading this over the summer-y period will be Zwirbaum and he will be the main person to inform about changes happening on that branch. He will also fill in a bit more on what to expect so I will happily hand over the proverbial mic to them.

Have a wonderful summer y’all!

/Batya

Hello, I’m Zwirbaum, Game Designer for Hearts of Iron, and I want to welcome you all to this new Open Beta, Summer Edition™. Similarly to how we had Open Naval Balance Beta run during the Spring, where efforts were mostly focused on adjusting the balance and fixing some of the issues for the naval aspect of the gameplay, this time I will be taking a bit broader look across the game balance and some of the pain points of Hearts of Iron IV.

What is changing for this Open Beta Summer Edition™ - as opposed to the Naval Balance Beta? During the spring I found out that trying to keep up with the weekly update cadence on top of my regular responsibilities, was imposing too much of pressure on me, which meant that I had a bit less time to think about certain things, respond and participate in the discussions with the community and to proceed with the actual implementation and changes. This time there will be no guaranteed or any REGULARLY planned update cadence. Also as we are entering Summer period, there is a small chance that my posts may be a bit more irregular in what they would contain, in order to keep it vacation themed somewhat. So less lengthy posts, with a lot of dry information, but either more concise posts, or a bit more unusual content? This time we may also have more experimental changes that will take more time to reach full maturity.

What is not changing from the previous Naval Balance Beta? Once again there is no guarantee that this Beta will be integrated into a main version, when or in what form it would happen, not to mention that it would of course depend on the feedback we would be getting from you, our dear community.

For more comments on what is changed, and why, check out for the developer commentary in the specific sections in the Patch Notes.

Thanks for reading, and until next time, Farewell!

/Zwirbaum

How to join this Open Beta:

This beta client is Operation Postern v1.19.2.0.40eb (f387)
To install Open Beta client, follow the instruction below:

-  Right-click the game in your library

-  Select Properties from the drop-down menu

-  Select Game Versions & Betas

-  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 b

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/717908846920601849]_

### Thunder at our Gates | Patch 1.19.2

- Date: 2026-06-30
- Original notes: https://store.steampowered.com/news/app/394360/view/717908846920599778
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-717908846920599778

- **changed** — Expeditionary Leader trait Non-Core Attack and Defence reduced from +15% to +10%
- **fixed** — Tuned down the Spirit of St. Bernard spirit which could give 105% casualty trickleback and unending armies of resurrected zombie Swiss
- **changed** — INS: Feint uprisings now cost more manpower (2500 > 5000) but less infantry equipment (2500 > 1500)
- **fixed** — INS: Indonesia will now core all of their starting states in the revolution
- **changed** — AST: Decreased Non-Core Attack and Defence values by roughly half on the Australian Military Forces National Spirit
- **changed** — AST: Decreased Citizen Army penalty to non-core Attack and Defence from -25% to -15%
- **changed** — AST: Rebalanced the Australian Air Branch decreasing especially their mission efficiency
- **changed** — SIA: Increased Siam's starting stability from 19% to 29%
- **changed** — SIA: Reduced Build cost IC for Unconventional Tank Designs from -15% to -10%
- **changed** — SIA: Removed Reliability penalty for Unconventional Tank Designs and added a -5% Soft attack penalty instead
- **changed** — SIA: Reduced compliance gain from full Civilian support from 10% to 5%
- **changed** — SIA: Reduced compliance gain from the Focus Built to Withstand Every Flame from 10% to 5%
- **changed** — SIA: Reduced Research speed Production efficiency cap Defense Organization Entrenchment and Output by on average ~1% gained from Asian Democratic Compact per faction member
- **changed** — Updated tooltip for Establish the ABDACOM shared focus to clarify that only faction members are eligible to receive invites
- **fixed** — Fixed the description for the focus Reestablish the Guominjun to not claim that Sinkiang was led by Moustache Man in the 1939 start
- **fixed** — A subject owning a single state no longer creates a new war participant popup when joining a war
- **added** — Added a new event sound tickbox to disable or enable scripted event sounds such as speeches
- **added** — Added joint focus tree icons to ABDACOM focuses
- **added** — AST: Added the Australasia formable
- **added** — SIA: Added a new focus in the Pan-Thaiism branch that allows you to end the factionalism of the Khana Ratsadon if both the Civil and Military wing approve of you for 270 days
- **added** — SIA: Added options to sway individuals via decisions for the Seri Thai where each general increases the strength of the civil war for your side by 5%

Generals!

Today marks the last pre-summer patch with fixes and tweaks to Thunder At Our Gates. After this the team will have limited presence in the office for the summer period.

We know that this patch does not hit all the sought after balance changes but for that we’d like to refer to you a new Open Beta that we will be running over summer that will address some of those issues.

For now, be fully immersed in the rumble in the jungle with the summer heat seeping through your windows. See you all after summer!

**ROLLBACK**
For this release we’ve added the option to roll back to our recent Patch 1.19.1. This is useful for players that have saved games that they would like to finish, before moving onto 1.19.2.

-  Right click the game in Steam

-  Go to Properties, then Game Versions & Betas

-  Select 1.19.1

-  Default Public Version will use the latest public build, in this case 1.19.2

If you are wondering about which patch to use, you can also see version history on the [Paradox Wiki](https://hoi4.paradoxwikis.com/Patches)

##### **PATCH NOTES**

##### **Balance**

-  Expeditionary Leader trait Non-Core Attack and Defence reduced from +15% to +10%.

-  Tuned down the "Spirit of St. Bernard" spirit, which in combination with other things could give 105% casualty trickleback and unending armies of resurrected zombie Swiss. Fixes

-  INS: Feint uprisings now cost more manpower (2500 > 5000), but less infantry equipment (2500 > 1500).

-  INS: Indonesia will now core all of their starting states in the revolution

-  AST: Decreased Non-Core Attack / Defence values by roughly half on the 'Australian Military Forces' National Spirit .

-  AST: Decreased Citizen Army penalty to non-core Attack and Defence from -25% to -15%.

-  AST: Rebalanced the Australian Air Branch, decreasing especially their mission efficiency.

-  SIA: Increased Siam's starting stability from 19% to 29%.

-  SIA: Reduced Build cost IC for 'Unconventional Tank Designs' from -15% to -10%.

-  SIA: Removed Reliability penalty for 'Unconventional Tank Designs' and added a -5% Soft attack penalty instead.

-  SIA: Reduced compliance gain from full Civilian support from 10% to 5%.

-  SIA: Reduced compliance gain from the Focus 'Built to Withstand Every Flame' from 10% to 5%.

-  SIA: Reduced Research speed, Production efficiency cap, Defense, Organization, Entrenchment and Output by on average ~1% gained from Asian Democratic Compact per faction member.

##### **Gameplay**

-  Updated tooltip for "Establish the ABDACOM" shared focus to make it more clear that only faction members are eligible to receive invites to join the ABDACOM.

-  Fixed the description for the focus "Reestablish the Guominjun" to not make the rather bold claim that Sinkiang was led by Moustache Man in the 1939 start. Fixes

-  A subject owning a single state no longer creates a 'new war participant' popup when joining a war.

-  Added a new event sound tickbox to disable/enable scripted event sounds. For example speeches.

-  The new releasable nations in Indonesia now also have access to the Nusantara/Greater Indonesia formable decision category

-  Added joint focus tree icons to ABDACOM focuses.

-  INS: Clarified the effect of the Focus 'Privately Owned Military Industry'.

-  INS: The Indonesian focus 'The Timor Issue' will now dynamically switch icons & loc if Timor is independent.

-  INS: Indonesia can now core East Timor using Unity in Diversity decisions.

-  INS: Indonesian decision "Order a Ceasefire" now requires escalation 2+

-  INS: Allow an Indonesian-formed Netherlands-Indonesia union to take most Dutch economic focuses from the joint tree.

-  INS: Added a decision for the Netherlands-Indonesia Union to move its capital to Amsterdam or Batavia.

-  INS: Hollandia will now be renamed to Jayapura if Indonesia is independent.

-  INS: Added a small naval branch for the Dutch East Indies joint tree, which is available during peacetime.

-  AST: Added the Australasia forma

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/717908846920599778]_

### HOI IV | Open Beta Weekend (1.19.2)

- Date: 2026-06-25
- Original notes: https://store.steampowered.com/news/app/394360/view/717908846920598021
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-717908846920598021

- **fixed** — Pending hotjoins can no longer be overwritten by new requests
- **fixed** — Players no longer bypass the hotjoin flow when joining a lobby that has loaded into the map but not started yet
- **changed** — Expeditionary Leader trait Non-Core Attack and Defence reduced from +15% to +10%
- **fixed** — Spirit of St. Bernard tuned down to prevent excessive casualty trickleback
- **changed** — INS: Feint uprisings now cost 5000 manpower instead of 2500 but only 1500 infantry equipment instead of 2500
- **fixed** — INS: Indonesia will now core all of their starting states in the revolution
- **changed** — AST: Decreased Non-Core Attack and Defence values by roughly half on the Australian Military Forces National Spirit
- **changed** — AST: Decreased Citizen Army penalty to non-core Attack and Defence from -25% to -15%
- **changed** — AST: Rebalanced the Australian Air Branch, decreasing especially their mission efficiency
- **changed** — SIA: Increased Siam's starting stability from 19% to 29%
- **changed** — SIA: Reduced Build cost IC for Unconventional Tank Designs from -15% to -10%
- **changed** — SIA: Removed Reliability penalty for Unconventional Tank Designs and added a -5% Soft attack penalty instead
- **changed** — SIA: Reduced compliance gain from full Civilian support from 10% to 5%
- **changed** — SIA: Reduced compliance gain from the Focus Built to Withstand Every Flame from 10% to 5%
- **changed** — SIA: Reduced Research speed, Production efficiency cap, Defense, Organization, Entrenchment and Output by on average approximately 1% gained from Asian Democratic Compact per faction member
- **changed** — Updated tooltip for Establish the ABDACOM shared focus to clarify that only faction members are eligible to receive invites
- **fixed** — Fixed the description for the focus Reestablish the Guominjun to correct claim about Sinkiang leadership
- **fixed** — A subject owning a single state no longer creates a new war participant popup when joining a war
- **added** — Added a new event sound tickbox to disable or enable scripted event sounds such as speeches
- **added** — The new releasable nations in Indonesia now have access to the Nusantara and Greater Indonesia formeable decision category

Generals!

We decided it would be best to run 1.19.2 as an Open Beta over the weekend to get some potential player input over the weekend. This will allow us to make any necessary fixes as well that might pop up as a result from having a wider testing net.

The upside is earlier patch notes!

One thing I want to mention beforehand however is that there are no massive balance changes in this patch at the moment. This does not mean that we are not seeing the flagged issues, and we are aiming to do a wider balance pass, but more on that next week.

For now, thank you for the input and stay safe out there.

_**/Batya**_

**How to join this Open Beta:**

This beta client is **Operation Postern v1.19.2.0.a69c (d7b6)**

To install Open Beta client, follow the instruction below:

-  Right-click the game in your library

-  Select Properties from the drop-down menu

-  Select Game Versions & Betas

-  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](https://forum.paradoxplaza.com/forum/forums/hearts-of-iron-iv-bug-reports.951/) 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.

##### **Open Beta Notes **

##### _Known issues_

-  Pending hotjoins can be overwritten by new requests, resulting in an inability to launch the game

-  Players bypass the hotjoin flow when joining a lobby that has loaded into the map, but not started yet

##### **Balance**

-  Expeditionary Leader trait Non-Core Attack and Defence reduced from +15% to +10%.

-  Tuned down the "Spirit of St. Bernard" spirit, which in combination with other things could give 105% casualty trickleback and unending armies of resurrected zombie Swiss. Fixes

-  INS: Feint uprisings now cost more manpower (2500 > 5000), but less infantry equipment (2500 > 1500).

-  INS: Indonesia will now core all of their starting states in the revolution

-  AST: Decreased Non-Core Attack / Defence values by roughly half on the 'Australian Military Forces' National Spirit .

-  AST: Decreased Citizen Army penalty to non-core Attack and Defence from -25% to -15%.

-  AST: Rebalanced the Australian Air Branch, decreasing especially their mission efficiency.

-  SIA: Increased Siam's starting stability from 19% to 29%.

-  SIA: Reduced Build cost IC for 'Unconventional Tank Designs' from -15% to -10%.

-  SIA: Removed Reliability penalty for 'Unconventional Tank Designs' and added a -5% Soft attack penalty instead.

-  SIA: Reduced compliance gain from full Civilian support from 10% to 5%.

-  SIA: Reduced compliance gain from the Focus 'Built to Withstand Every Flame' from 10% to 5%.

-  SIA: Reduced Research speed, Production efficiency cap, Defense, Organization, Entrenchment and Output by on average ~1% gained from Asian Democratic Compact per faction member.

##### **Gameplay**

-  Updated tooltip for "Establish the ABDACOM" shared focus to make it more clear that only faction members are eligible to receive invites to join the ABDACOM.

-  Fixed the description for the focus "Reestablish the Guominjun" to not make the rather bold claim that Sinkiang was led by Moustache Man in the 1939 start. Fixes

-  A subject owning a single state no longer creates a 'new war participant' popup when joining a war.

-  Added a new event sound tickbox to disable/enable scripted event sounds. For example speeches.

-  The new releasable nations in Indonesia now also have access to the Nusantara/Greater Indonesia formeable decision category

-  Added joint focus tree icons to ABDACOM focuses.

-  INS: Clarified the effect of the Focus 'Privately Owned Military Industry'.

-  INS: The Indonesian focus 'The Timor Issue' will now dynamically switch icons & loc if Timor is independent.

-  INS: Indonesia can now core East Timor using Unity in Diversity de

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/717908846920598021]_

### Thunder at our Gates | Patch 1.19.1

- Date: 2026-06-17
- Original notes: https://store.steampowered.com/news/app/394360/view/678501080802264871
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-678501080802264871

- **fixed** — Fix country selection screen being broken in several mods
- **fixed** — Fix exploit regarding Force Attack
- **changed** — Reduce Blockade Runner admiral trait requirement from 37 to 32 knots to allow for support and repair ships
- **changed** — Reduce The Grand Assault milestone Forward Command Posts supply reduction from -0.05 to -0.01
- **changed** — Significantly reduce factories required for Indonesian focus The Industrialized Colony
- **changed** — Significantly reduce factories required for Indonesian focus The Soetardjo Act
- **changed** — Remove minimum number of civs, mils, and dockyards requirement from Indonesian focus The Republic of Indonesia and reduce factories required
- **changed** — Change Indonesian focus Economic Integration to require minimum of 50 factories of any type instead of 45 civilian factories specifically
- **changed** — Change Australian focus length from 70 to 35 days for several focuses and swap a few icons
- **changed** — Tweak values of Decisions and National Spirits for the Australian Fascist branch
- **fixed** — Fix Australian small portrait of John Lavarack showing wrong portrait
- **changed** — Lower Australian Governor General Advisor Trait Democracy drift from 0.10 to 0.05 and add -5% consumer goods factor
- **changed** — Rebalance Australia's population growth modifiers
- **changed** — Increase Australian Democratic branch autonomy gain from 0.1 to 0.3
- **changed** — Increase Australian Fascist autonomy gain from 0.1 to 0.3
- **changed** — Tone down Australian tech rushing capability through Lee-Enfield No.1 Mk III* and Owen Gun focuses
- **changed** — Change Siamese German Tank Studies to grant +5% piercing bonus instead of -10% build cost reduction
- **changed** — Change Siamese American Tank Studies to only grant attack bonus instead of -5% build cost reduction as well
- **changed** — Change Siamese Unconventional Tank Construction to grant -15% build cost instead of -20% and -10% reliability instead of -15%
- **added** — Add Sergio Osmena as a country leader option for Philippines after Manuel Quezon's death

Generals!

Thanks for all of the feedback we’ve received over the last few days. We’re hard at work addressing as much of it as possible and plan to incorporate more into another patch that will happen later down the line. The main issues we wanted to address were the country selection screen being broken in several mods, as well as an exploit regarding ‘Force Attack’. Both of these issues are fixed now alongside a bunch of other bug fixes and balance changes.

Besides letting us know what to focus on, I’d also like to ask if there are any changes people would like to see regarding the patch notes. For example I’ve bounced between using country tags and full names for highlighting purposes. I’d like to know if there’s a preference.

**_/Batya_**

##### **PATCH NOTES**

##### **Balance**

- Blockade Runner admiral trait requirement reduced from 37 to 32 knots to allow for support and repair ships.

- The Grand Assault milestone 'Forward Command Posts' supply reduction was reduced from -0.05 to -0.01

- INS/HOL: Significantly reduced the factories required for the focus 'The Industrialized Colony'.

- INS/HOL: Significantly reduced the factories required for the focus 'The Soetardjo Act'.

- INS/HOL: The focus 'The Republic of Indonesia' no longer requires a minimum number of civs, mils, and dockyards, and instead only checks your factory count, regardless of which type. Also reduced the factories required to take the focus.

- INS/HOL: The focus 'Economic Integration' now requires a minumum of 50 factories of any type, instead of 45 civilian factories specifically

- AST: Changed focus length from 70 to 35 for several focuses, and swapped a few icons.

- AST: Tweaked the values of Decisions and National Spirits for the Fascist branch.

- AST: Locking default advisor to die in Air Crash event.

- AST: Fixed a bug with the small portrait of John Lavarack showing the wrong portrait.

- AST: The 'Governor General' Advisor Trait has had a balance tweak lowering the Democracy drift from 0.10 to 0.05 and adding -5% consumer goods factor.

- AST: Rebalanced Australia's various population growth modifiers

- AST: Democratic branch autonomy gain has been increased from 0.1 to 0.3.

- AST: Fascist autonomy gain has been increased from 0.1 to 0.3.

- AST: Edited advisor Richard Dixon available check, added leader trait to focus Eastern Focus, and tweaked prereqs of focus The Pacific Pact

- AST: Toned down the tech rushing capability through 'Lee-Enfield No.1 Mk III*' and 'Owen Gun' focuses.

- AST: Added MILS to fascist focuses 'Walls Like Uluru' and 'Crush the Gates' + spirit National Defense modifier tweaks

- AST: Decision Call On Fascist now has a dynamic cost.

- AST: Upgraded the focus 'Coastwatchers' with Air Wing Experience Loss When Killed reduction, and Naval Auxiliary Patrol with Casualties on Sink reduction to represent the many airmen and sailors saved by these two organisations.

- SIA: Slightly increased the probability that asking for the return of territories goes in Siams favor

- SIA: German Tank Studies now grants +5% piercing bonus instead of a -10% build cost reduction.

- SIA: American Tank Studies now only grants its attack bonus instead of -5% build cost reduction as well.

- ABDACOM focuses are now mostly 35 days (first and last are 70 day).

- SIA: 'Asian Democratic Compact' now only counts non-puppets that are in your faction.

- SIA: Unconventional Tank Construction now grants -15% build cost instead of -20% and -10% reliability instead of -15%.

##### **Gameplay**

- INS: Militia unit upgrades now increase the success chance of Indonesian raids.

- INS: Indonesia now gets events after finishing a militia base decision.

- INS: Clarified an Indonesian tooltip in the declaration of independence focus.

- AST: Rebalanced AI weight to focus a little more on air.

- AST: Tweaking Democratic and Communist volunteer focus effects.

- AST: Australian Communists no longer need to deal with the Cabinet Trust following

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/678501080802264871]_

### Hotfix 1.19.0.1

- Date: 2026-06-12
- Original notes: https://store.steampowered.com/news/app/394360/view/678501080802264535
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-678501080802264535

- **fixed** — Fixed a crash when Army HQ units were destroyed in combat under specific conditions, such as in a four-way Spanish civil war
- **fixed** — Main menu icon for The Art of Governance DLC now correctly shows ownership

Generals!

We’ve just released a small hotfix (1.19.0.1) to address two of the issues that we’re seeing right now.

- There was a particular crash related to the Spanish civil war kicking off into a four-way civil war and the new Army HQ feature.

- There was an issue where the TaoG DLC icon in the main menu wasn’t lighting up properly if you have the DLC unlocked.

Both of these should now be fixed.

**Crashing and MODs**

We also can see in our reporting telemetry that most other crashes players are experiencing right now are related to playing with mods. If you do crash, and you are 100% certain that you’re NOT playing with mods, please submit your crashes in the crashreporter tool so we can look into fixing them.

**Balance and stat bloat**

We hear your concerns with balance & stat bloat, and we’re looking into this. We also see the complaints about command ability cost being affected by the general planning skill, causing in rare cases the ability cost to be pretty much free. This was unintentional and will be reverted in 1.19.1.

**More patch**

We’re already working on Patches 1.19.1 and 1.19.2.

Our aim is to release the former (early) next week, and 1.19.2 should be not too far after that.

**PATCH NOTES**

**Stability & Performance**

- Fixed a CTD when Army HQ units were destroyed in combat under specific conditions (risks happening in, for example, a 4-way Spanish civil war).

**Bugfix**

- Main menu icon for TaoG now correctly shows ownership.

### Thunder at our Gates - Available Now!

- Date: 2026-06-11
- Original notes: https://store.steampowered.com/news/app/394360/view/678501080802263836
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-678501080802263836

- **added** — Add new Army HQ feature
- **added** — Add Ship Captains feature
- **added** — Add regimental support in the free patch
- **added** — Add new country content for Australia, Siam, and Indonesia
- **added** — Add Thunder at our Gates soundtrack

Generals!

_**Thunder At Our Gates**_ is officially out now! Jump into the thick of the South-East Asian rainforests and battle your way through to victory. Or if you prefer a more grainy environment, stick to the Australian continent and send your expeditionaries to hold Tobruk like a real desert rat.

This is our first **Theater Pack**, a smaller DLC which includes both country content as well as gameplay features. With it you get new content for Australia, Siam, and Indonesia as well as the inclusion of the new Army HQ feature and Ship Captains (and regimental support in the free patch!).

We hope to see you out there protecting the Pacific or uniting it under your banner!

_**/Batya**_

https://store.steampowered.com/app/3796290/Theater_Pack__Hearts_of_Iron_IV_Thunder_at_our_Gates/

Enjoy the brand new Thunder at our Gates soundtrack!

These Major Mods have, or soon will be, updated so that you can keep playing them (or try them out!)

 (The dates _can_ change, however)

**June 11th**
[End of a New Beginning](https://steamcommunity.com/sharedfiles/filedetails/?id=3630631990)
[]({STEAM_CLAN_IMAGE}/9948323/d0a4a816aa8b5f19834d26103598bceb671f590d.jpg)

[World Ablaze](https://steamcommunity.com/workshop/filedetails/?id=2149567872)
[]({STEAM_CLAN_IMAGE}/9948323/62a4c57e757300bf5d0400c9a01eb2ab044774f5.jpg)

**June 30th**
[Cold War Iron Curtain](https://steamcommunity.com/sharedfiles/filedetails/?id=1458561226)
[]({STEAM_CLAN_IMAGE}/9948323/e6157fcdc24e85ece43de6484644f0e3d51837fd.jpg)

We’re almost there, **our free weekend is starting today!**

Need some Help getting started? Have a look at [HOI Designer](https://hoidesigner.com/) (_Not affiliated with Paradox Interactive_)

### Thunder at our Gates | Patch Notes (1.19.0)

- Date: 2026-06-10
- Original notes: https://store.steampowered.com/news/app/394360/view/712277443918955865
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-712277443918955865

- **added** — New Focus tree for Australia with a new Democratic Election system
- **added** — New Focus tree for Siam
- **added** — New Focus tree for The Dutch East-Indies
- **added** — New voice-over for Australia, Siam, and The Dutch East-Indies
- **added** — 6 new music tracks
- **added** — 50 new and revamped airplane models
- **added** — 4 new and revamped ground vehicle models
- **added** — 21 new and revamped tank models
- **added** — 3 new infantry models
- **added** — 14 Army HQ commander models including 3 generic cultural variants
- **added** — Army HQs system allowing deployment of generals into the field to provide additional support to their army
- **added** — Ability to assign deployed Army HQs to specific orders to buff troops
- **added** — 11 unique HQ support companies for tailoring Army HQs to different needs
- **added** — 5 new commander abilities unlocked through HQ support companies
- **added** — Dispersed Operations doctrine focusing on hardening logistics and reducing enemy air power effects
- **added** — Ship Captains for naval vessels with the ability to grant them medals and promote them to Admirals
- **added** — 8 Historical Ship Captains in both bookmarks for all Major countries and Australia
- **added** — New row for Regimental Support in the Division Designer
- **added** — 12 Regimental support companies unlocked through techs and synergising with the doctrine system

Generals!

Tomorrow at **18:00 CEST** we’ll be releasing **_Thunder at our Gates_**. It feels like only two months ago that we brought you Peace for our Time.

Accompanying this release we’ll bring you **Patch 1.19.0** and, just like the recent Anniversary Patch, it’s another beefy one.

##### **Patch Notes (1.19.0)**

##### Thunder at our Gates

- Added new Focus tree for Australia and a new Democratic Election system.

- Added new Focus tree for Siam.

- Added new Focus tree for The Dutch East-Indies.

- Updated states in South-East Asia.

- Added new VO for Australia, Siam, and The Dutch East-Indies.

- Added 6 new Music Tracks.

- Added 50 new and revamped airplane models

- Added 4 new and revamped ground vehicle models.

- Added 21 new and revamped tank models.

- Added 3 new infantry models.

- Added 14 Army HQ commander models including 3 generic cultural variants.

- Introducing Army HQs which allows for the deployment of generals into the field to provide additional support to their army.

- Deployed Army HQs can be assigned to specific orders and buff troops accordingly.

- Added 11 unique HQ support companies that allows for tailoring Army HQs to different needs.

- Added 5 new commander abilities that are unlocked through HQ support companies.

- Added Dispersed Operations doctrine for Thunder at our Gates, focusing on hardening logistics & reduce the effect of enemy air power.

- Added Ship Captains to Naval vessels and the ability to grant them medals and promote them to become Admirals.

- Added 8 Historical Ship Captains in both bookmarks for all Major countries (and Australia!).

##### **Free Features & Models**

- Added a new row for Regimental Support to the Division Designer.

- Added 12 Regimental support companies that are unlocked through techs and synergise with the doctrine system

- Added the new Doctrine system for Special Forces.

- Added 3 revamped Infantry models, and 2 Artillery models for the Commonwealth

- Added 2 revamped tank models.

- Added 4 revamped ground vehicle models.

- New Zealand received several new Focuses, Advisors and Industrial Concerns.

##### **Balance**

- The Pearl Harbor raid now has a lower base success chance, but it is improved by taking the focus 'Form the Kido Butai'.

- Command powers daily costs now scale with amount of battalions affected.

- The negative effects of failing the 'People's Trust' mission as the PRC are now better displayed in the tooltip, and have been merged into one National Spirit.

- Split the Japanese Home Islands airzone into Northern, Central, and Southern Japan.

- Manchukuo: Improved the trait the leader gains when completing the focus 'Claim the Mandate of Heaven'.

- The UK is now less likely to select a faction rule that reduces the tension needed to guarantee other nations when playing on historical.

- Commercial Nuclear Reactor will now contribute 0.01% Daily Breakthrough towards 'Physics/Nuclear' category. (As it already contributed to the production of the Nuclear Bombs, it will now also be listed in the respective tooltip).

- Iran no longer gains redundant research bonuses when going down the Negotiate with America / Establish the Iranian Nuclear Program focuses, instead getting breakthrough points.

- Rejigged the Mexican AI strategy plans so that they build up and prepare more before they eventually go to war with the USA and the Allies.

- Supervised States can now decline being called into a war, to represent the difference between regular puppets and democratized governments.

- Continuous Offensives: All armour additionally gains +10% breakthrough.

- Self-Sufficient Battalion: Armored signal battalion_mult on tank destroyers nerfed: AP attack reduced from +20% to +10%.

- Artillery Groups: Support artillery now also benefits, gaining +5% soft attack and +10% breakthrough.

- Pakfront: Anti-tank brigade +20% defense moved to Emplacement Rotation & +20% soft attack moved to Weakpoint Studies

- Multirole Support Vehicles: M

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/712277443918955865]_

### Hearts of Iron IV | Patch 1.18.2

- Date: 2026-05-20
- Original notes: https://store.steampowered.com/news/app/394360/view/698764742929417951
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-698764742929417951

- **added** — Czechoslovakia gets a unique cosmetic tag called Great Moravia when using the Austria-Hungary reformation decision
- **changed** — Changed the flag for the Bohemian Kingdom to still include Slovakia
- **changed** — Renamed 'Integrate Hungary' to 'Integrate Former Austrian Lands' and made it grant integration idea to more puppets than just Hungary
- **added** — Certain Czech characters now go into exile to some countries sometime after the 'Fate of Czechoslovakia' event is triggered under certain conditions
- **changed** — Slightly tweaked the balance of a few advisors
- **added** — Added a tooltip to the option for Hungary and Poland to demand land in return for joining their faction when invited, explaining what happens if CZE accepts the counteroffer event
- **changed** — Rebalanced some of the Balance of Power Decisions reappearance times
- **changed** — Overhauled late-game industry and Peace For Our Time branch ideas to use idea swaps to reduce the amount of ideas displayed
- **added** — Added conscription, training, and militia bonuses for the army spirit to some focuses
- **added** — Added two new division name lists: Rangers and State Defense Guard
- **changed** — Germany can no longer start 'Fate of Czechoslovakia' if CZE still owns the Sudetenland and will get a wargoal instead
- **added** — Added a slight color change to Czechoslovakia when it starts its monarchist or fascist branches
- **added** — Two Polish MIOs (Naval and Tank) can be gained by Czechoslovakia depending on completing a focus or having a core related state
- **added** — Added tooltips to a few focuses when they don't have any targets to make clear what they do
- **added** — Added extra visual and focus effect flavor in the fascist branch
- **changed** — The Ready for Anything decision to remove the BoP now has slightly more forgiving requirements
- **changed** — Czechoslovakia now uses a new Pan-European cosmetic tag instead of the Balkan Union one
- **changed** — Completing the Czechoslovakian focus 'Lessons of War' now removes the BoP modifier 'Threatening Neighbors'
- **fixed** — Fixed a crash that can occur when a rocket silo's Surface-to-Air mission is set to a naval region
- **fixed** — Fixed a crash that can occur on Mac during peace conferences
- **fixed** — Radola Gajda now has a Militarist trait
- **fixed** — Removed two army leader cost reductions that could accumulate to -125% army leader cost and make promoting division leaders cost 0 CP

Generals!

_**Batya**_ here with another patch.

The focus is around Czechoslovakia’s content that was recently released with [**Peace For Our Time**](https://store.steampowered.com/app/3757310/Focus_Pack__Hearts_of_Iron_IV_Peace_For_Our_Time/). Besides that there have been a few crashes that were fixed and included in this patch. I also want to extend a special thanks to the wonderful team behind Peace for our Time and all the balance changes, bug fixes, and other additions that they made since release!

This is currently the last planned patch focused around the release of **PfoT**, but any additional issues will of course be picked up in future patches. We hope that you will enjoy these changes and as always let us know what you think and if you find any other issues do let us know!

As a final note, the team added a little secret and wanted to provide a little hint so here is my (maybe not so) cryptic hint: A.E.I.B.U.

Happy hunting and see you on the Sudeten front!

**

##### Patch Notes

**

##### Gameplay & Balance

-  When Czechoslovakia uses the Austria-Hungary reformation decision, they now get a unique cosmetic tag called Great Moravia.

-  Changed the flag for the Bohemian Kingdom so it still includes Slovakia.

-  'Integrate Hungary' is now 'Integrate Former Austrian Lands', and can grant the integration idea to more puppets than just Hungary.

-  Certain Czech characters now go into exile to some countries sometime after the 'Fate of Czechoslovakia' baring conditions are met.

-  Slightly tweaked the balance of a few advisors.

-  The option to demand land in return for joining their faction that Hungary and Poland get when invited now has a tooltip about what happens if CZE accepts the counteroffer event.

-  Some of the Balance of Power Decisions reappearance times have been rebalanced slightly.

-  Overhauled late-game industry and Peace For Our Time branch ideas to use idea swaps to reduce the amount of ideas displayed.

-  Added conscription/training & militia bonuses for the army spirit to some focuses.

-  Added two new division name lists: Rangers & State Defense Guard.

-  Germany can no longer start ‘Fate of Czechoslovakia’ if CZE still owns the Sudetenland, they will get a wargoal instead.

-  Added a slight color change to Czechoslovakia when it starts its monarchist or fascist branches.

-  Two Polish MIOs (Naval and Tank) can be gained by Czechoslovakia depending on completing a focus or having a core related state.

-  Added tooltips to a few focuses when they don't have any targets (faction members/puppets) yet to make clear what they do.

-  Added some extra visual and focus effect flavor in the fascist branch.

-  The Ready for Anything decision to remove the BoP now has slightly more forgiving requirements.

-  Czechoslovakia no longer uses the Balkan Union cosmetic tag, using a new Pan-European one instead

-  Completing the Czechoslovakian focus 'Lessons of War' now removes the BoP modifier 'Threatening Neighbors'.

##### Bugfixes

-  Fixed a crash that can occur when a rocket silo's 'Surface-to-Air' mission is set to a naval region.

-  Fixed a crash that can occur on Mac during peace conferences.

-  Radola Gajda now has a Militarist trait.

-  Removed two army leader cost reductions as together with unremoved ones they could accumulate to -125% army leader cost and make promoting division leaders cost 0 CP.

-  Unifying with Poland now grants their unit leaders.

-  Buffed the monarchist integration idea from -1 daily autonomy for Hungary to -2.

-  Added a new cosmetic tag for Czechoslovakia's (integrated communist) puppets so they don't stay blue while CZE isn't.

-  Fixed Galicia's default capital being in the Sudetenland.

-  Fixed two Slovak navy chiefs having the same idea token.

-  Fixed communist path overlapping with democratic paths if a democratic path was chosen with the gamerule to show normally auto-hidden branches enabled.

-  Fixed multiple scope mistakes in the new specia

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/698764742929417951]_

### HOI IV - Open Beta Update V

- Date: 2026-05-13
- Original notes: https://store.steampowered.com/news/app/394360/view/698764742929416233
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-698764742929416233

- **changed** — Made lend lease default to max amount for 'once' and to 100% for 'percentage' modes
- **changed** — Updated supply tooltip to show more carefully where all supply is coming from
- **fixed** — Fixed performance in very large scale naval battles with 1000+ ships
- **fixed** — Fixed a dx11 rendering bug
- **fixed** — Fixed a bug where England could not build improved battleships
- **changed** — Extensive rework of italian naval equipment
- **changed** — The AI will now train their troops more often
- **changed** — Updated generic taskforces so they are a bit more sensible
- **changed** — The AI will try to train their ships a bit more opportunistic
- **changed** — The AI will be a bit more sensical with picking a homebase for its standby fleet
- **added** — Added logic to prevent the AI from assigning too many patrols to support naval invasion
- **changed** — AI objectives will respect blocked naval regions now and not consider them for naval mission assignment anymore
- **fixed** — Fixed a bug where ships were partially considered for supply need
- **fixed** — Fixed a bug where USA was unable to build 1940 CVs
- **fixed** — Fixed a bug where a strike force sometimes gets stuck on an invalid target and stops working
- **fixed** — Fixed a bug where wrong snow modifier values were shown and fixed a bug where the leader snow adjuster did not work as intended
- **changed** — Snow attack penalty is now shown on the move-arrow tooltip
- **removed** — Removed legacy plane techs from BBA-enabled starts for 36 minor nations
- **fixed** — RI Bolzano in the 1939 OOB now uses the correct ship_hull_cruiser_2 (Bolzano Class)
- **fixed** — Convoy raiders won't join or reinforce a combat unless there are enemy convoys to shoot at
- **fixed** — Fixed a crash related to carrier airplanes being deployed

**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:

- Right-click the game in your library

- Select Properties from the drop-down menu

- Select Game Versions & Betas

- 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](https://forum.paradoxplaza.com/forum/forums/hearts-of-iron-iv-bug-reports.951/) 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.

**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!)_

### Peace For Our Time | Patch 1.18.1

- Date: 2026-04-29
- Original notes: https://store.steampowered.com/news/app/394360/view/523122454653043787
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-523122454653043787

- **changed** — Bohemia formable now uses a golden colour
- **added** — Poland now has a small branch that gives them access to Czech MIOs/Concerns
- **changed** — Swapped several focus icons from the CZE political communist branches that used mismatching art from the Soviet 2D art pack
- **added** — New focus to the Czech tree called Wielding the Hammer which gives a new idea
- **added** — New focus to the Czech tree called Emergency Measures which gives a new idea
- **added** — New focus to the Czech tree called Demand the Czech Corridor which allows Czechoslovakia to demand land from Austria
- **changed** — Completing Contact the Czech and Slovak Legion now gives a number of aces
- **fixed** — Fixed a bug where End the Oppression of the Hungarian workers required the wrong state (León, Spain instead of South Transdanubia, Hungary)
- **fixed** — Fixed an issue where the Skoda tank MIO would by default be assigned to your Armored Car when creating a variant and producing it
- **fixed** — Fixed several typos in names and descriptions
- **fixed** — Fixed an issue where the Protektorat Bohmen-Mahren could reach 7 research slots in the 1939 bookmark
- **fixed** — I Didn't Hear No Bell achievement can now be unlocked after changing cosmetic tag
- **fixed** — Fixed an issue where puppet Slovakia changing overlord from CZE to GER would not correctly update their cosmetic tag
- **fixed** — Fixed an issue where the Divided Nation spirit would not disappear if the very last decision was interrupted
- **fixed** — Fixed an issue where two Slovak Navy Chiefs had the same Trait, used the same generic portrait, but had varying costs
- **fixed** — Fixed the tooltip for the focus Demand a Corridor to the Soviets
- **fixed** — The Skoda inlay window should no longer overlap with some focuses when going down a specific political branch
- **fixed** — Corrected the Czech word for Daddy used for Tatíček Masaryk
- **fixed** — Replaced modifiers for Czech special projects that were not working
- **fixed** — Realize the Polish Czechoslovak Confederation now requires Poland to be at war with the same nations Czechoslovakia

Generals!

Here’s your first update since we released Peace for our Time last week. Fire up HOI, annihilate your enemies, get your puppets under control and connect with your allies. Then, let us know your thoughts, and, should you find any more bugs, remember to drop them in the [**HOI IV Bug Reports forum.**](https://forum.paradoxplaza.com/forum/forums/hearts-of-iron-iv-bug-reports.951/)

##### **Gameplay**

-  The Bohemia formable now uses a golden colour

-  Poland now has a small branch that gives them access to Czech MIOs/Concerns

-  Swapped several focus icons from the CZE political communist branches that used mismatching art from the Soviet 2D art pack

-  Added a new focus to the Czech tree - "Wielding the Hammer" which gives a new idea

-  Added a new focus to the Czech tree - "Emergency Measures" which gives a new idea

-  Added a new focus to the Czech tree - "Demand the Czech Corridor" which allows Czechoslovakia to demand land from Austria

-  Completing "Contact the Czech and Slovak Legion" now gives a number of aces

##### **Bugfix**

-  Fixed a bug where "End the Oppression of the Hungarian workers" required the wrong state (León, Spain instead of South Transdanubia, Hungary)

-  Fixed an issue where the Skoda tank MIO would by default be assigned to your Armored Car when creating a variant and producing it

-  Fixed several typos in names and descriptions

-  Fixed an issue where the Protektorat Bohmen-Mahren could reach 7 research slots in the 1939 bookmark

-  The "I Didn't Hear No Bell" achievement can now be unlocked after changing cosmetic tag

-  Fixed an issue where puppet Slovakia changing overlord from CZE to GER would not correctly update their cosmetic tag

-  Fixed an issue where the "Divided Nation" spirit would not disappear if the very last decision was interrupted

-  Fixed an issue where two Slovak Navy Chiefs had the same Trait, used the same generic portrait, but had varying costs

-  Fixed the tooltip for the focus "Demand a Corridor to the Soviets"

-  The Skoda inlay window should no longer overlap with some focuses when going down a specific political branch

-  Correcting small mistake in what Czech word for "Daddy" was used for Tatíček Masaryk

-  Replaced modifiers for Czech special projects that were not working

-  Corrected the year in the localization of a focus from "Revert the 1926 Anti-Military Laws" to 1927

-  "Realize the Polish Czechoslovak Confederation" now requires Poland to be at war with the same nations Czechoslovakia

-  Rebalanced Slovakia Army Idea

-  The event to demand Katowice from Poland now uses the correct option text

-  Corrected the localization for a Japanese MIO to use correct special text characters

-  Corrected the localization for the "Tatíček Masaryk" focus and "Ceské Slezsko" state name

-  Fixed a typo in "Smaller Air Plants" focus

##### **AI**

-  Adjusted German AI to produce enough transport planes

-  Added new AI strategy for Slovakia so they will help Germany with the Eastern front

-  Fixed some inverted ai_chance blocks when puppeting Hungary

-  Add some more granular AI chance modifiers to a number of Czech events

### Peace for Our Time | Available NOW!

- Date: 2026-04-22
- Original notes: https://store.steampowered.com/news/app/394360/view/523122454653043126
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-523122454653043126

- **added** — New Czechoslovakia focus tree with democratic, communist, monarchist, and fascist paths
- **added** — Army industry Management system using a new focus tree GUI to dynamically prioritize sectors of armaments industry
- **added** — Army Readiness Balance of Power mechanic to manage army readiness versus industrial benefits
- **added** — Divided Nation Decisions system to alleviate stresses in Czechoslovak society by investing in education and industry
- **added** — New Special Project to destroy forts with ease and related technology
- **added** — New generals and country leaders for Slovakia with 3D unit models
- **added** — New national focus for Germany to integrate Czechoslovakia Equipment Designers into the Reich's war machine
- **added** — Two new landmarks for Czechoslovakia
- **added** — Two new music tracks
- **added** — Two new 3D unit models
- **added** — One new paratrooper raid for Germany
- **added** — Four new political advisors for Czechoslovakia
- **added** — One new naval commander for Czechoslovakia
- **added** — Czechoslovakia now has a brief window to release Slovakia upon game start
- **added** — Germany can set up both Protektorat of Bohmen-Mahren and Slovakia as puppets through event
- **changed** — Reworked over 60 Czechoslovak equipment icons
- **changed** — MIO/Concern CKD-Praga switched to a Multi-Role Aircraft Designer
- **changed** — MIO/Concern Skoda Armor switched to a Standardized Production Designer
- **changed** — MIO/Concern Aero switched to being a CAS Aircraft designer
- **changed** — Czechoslovakia's starting naval advisors replaced with figures historically linked to the Czech Army's Naval forces

Generals!

Now that you’ve watched your entertainment; the first order of business:[ The 1.18 Patch Notes that we posted yesterday,](https://store.steampowered.com/news/app/394360/view/523121915115602709?l=) read them. Want to roll back a version? You’ll find those instructions there as well.

It’s time then to roll back the date to 1936, and experience the dark days leading up to the Second World War; welcome to Czechoslovakia!

Features of _**Hearts of Iron IV: Peace for Our Time**_ include:

**New Czechoslovakia Focus tree**:

-  Democratic path: Balance the needs of various political factions and help the Allies ensure they will honor their commitment to protecting Czechoslovakia. Or strike out on your own path to defend Central Europe.

-  Communist path: Choose between the factions of Köhler, Gottwald and Zapotocky and either pursue Stalinism and align with the Soviet Union or pursue an independent course, while also forming and then expanding a Czechoslovak Union

-  Monarchist and fascist paths: Establish an authoritarian government to lead the country, either under a king or the military and enlarge Czechoslovakia with former Bohemian lands in Austria, the Balkans, Silesia and Poland, or cooperate with Germany, establishing a smaller sphere of influence under their protection

-  Shared paths: Strengthen the 1935 Czechoslovak-Soviet pact or intervene in the 2nd Soviet civil war if it happens, form the Little Entente with new cooperation options and countries to ally with. Continue a focus on fortifications and moving the arms industry away from the border, or abandon these policies

-  Army industry Management: Use a new focus tree GUI to dynamically prioritize sectors of your armaments industry; the boosts this provides are further strengthened by doing focuses, and your prioritization also unlocks certain focuses

-  Army Readiness Balance of Power: Keep your army at peak readiness, or indulge in the benefits of sidelining rearmament for industrial benefits

-  Divided Nation Decisions: Alleviate stresses in Czechoslovak society by investing in education and industry in areas that feel underemphasized

**Other additional content includes**:

-  Destroy Forts with ease with a new Special Project and related technology

-  Take up the mantle of Vodca with new generals, country leaders, and a 3D unit model for Slovakia

-  Integrate Czechoslovakia Equipment Designers into the Reich’s war machine with a new National Focus for Germany

And here is an overview of the DLC Content.

##### **Peace for Our Time**

**Added a new focus tree for Czechoslovakia**:

-  Monarchist branch: Establish a Bohemian empire under Karel VI Schwarzenberg.

-  Fascist branch: Work with Italy against Germany, or capitulate to German demands and work with them.

-  Communist branch: Choose one of three communist factions and expand the Czechoslovak Union with neighboring countries.

-  Democratic branch: Try to get stronger backing from the Western powers or look to your neighbors and assemble a Central European confederation.

-  Two new and one reworked tag mechanics: Army Readiness BoP, Industry focus GUI and Divided Nation decisions.

-  Added new Slovak generals and country leaders with unique portraits.

-  Slovakia has been given two new startdate National Spirits.

-  Reworked over 60 Czechoslovak equipment icons.

-  Added a new national focus for Germany that gives them Czech-related MIO/Concerns.

-  Added 2 new Landmarks.

-  Added 2 new music tracks.

-  Added 2 new 3D unit models.

-  Added 1 new Special Project.

-  Added 1 new Paratrooper Raid for Germany.

-  Poland, Austria, Ethiopia, Hungary, and Slovakia will get access to certain Czech MIO/Concerns if certain conditions are met.

-  Hungary will be able to do a border war with Slovakia if the circumstances permit it.

##### **Gameplay (Non-Peace for Our Time)**

-  Czechoslovakia has a new focus: “Healing a Divided Nation” in its democratic branch.

-  Czechoslovakia was gi

_[Truncated at 4000 characters — full notes: https://store.steampowered.com/news/app/394360/view/523122454653043126]_

### Warships of the Pacific - Hotfix, 1.17.5.2

- Date: 2026-03-26
- Original notes: https://store.steampowered.com/news/app/394360/view/536630082118092327
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-536630082118092327

- **fixed** — Issue causing only a single support model to be shown in division designer
- **fixed** — Bug where AI or other players updating division templates would be affecting your template updates
- **added** — Several missing tank pools for various tank models so they show up correctly
- **fixed** — Issue where a debug 3D model would show after disabling equipment in the division designer

Admirals!

Here’s a small hotfix for Warships of the Pacific, **1.17.5.2**

_Patch notes:_

**Bugfix**

-  Fixed issue causing only a single support model to be shown in division designer

-  Fixed a bug where AI or other players updating division templates would be affecting your template updates (UI only)

-  Added several missing tank pools for various tank models so they show up correctly

-  Fixed an issue where a debug 3D model would show after disabling equipment in the division designer

### Warships of the Pacific - Hotfix, 1.17.5.1

- Date: 2026-03-19
- Original notes: https://store.steampowered.com/news/app/394360/view/536630082118091120
- Permalink: https://whatsnew.fyi/product/hearts-of-iron-iv/releases/steam-536630082118091120

- **fixed** — Fixed incorrect ordering of some infantry models which caused some nations to display the generic 3D model
- **fixed** — Fixed an issue where the M24 Chaffee (USA) model shows up first in the list for Great War tanks if you have NSB disabled

Admirals!

Here’s a small hotfix for **Warships of the Pacific, 1.17.5.1**.

Patch Notes:

##### Bugfix

-  Fixed incorrect ordering of some infantry models which caused some nations to display the generic 3D model

-  Fixed an issue where the M24 Chaffee (USA) model shows up first in the list for Great War tanks if you have NSB disabled