Patch 2.4

Hearts of Iron IV

Version history

🐱 "Cats and Dogs" 🐶

2.4.2 • 2.4.2.1 • 2.4.2.2 • 2.4.2.3 • 2.4.2.4 • 2.4.2.5

2.4.1 • 2.4.1.1 • 2.4.1.2

2.4 • 2.4.0.1 • 2.4.0.2 • 2.4.0.3 • 2.4.0.4 • 2.4.0.5

🧭 "Daring Do and the Yaks that SMASH!" 🏔️

2.3.2

☀️ "The Herald and The Beast" 💀

14.4.4

🧭 "Daring Do and the Yaks that SMASH!" 🏔️

2.3.1 • 2.3.1.1 • 2.3.1.2 • 2.3.1.3 • 2.3.1.4 • 2.3.1.5 • 2.3.1.6

2.3 • 2.3.0.1

🔥 "The Way of Fire" 🔥

2.2.2.4 • 2.2.2.5 • 2.2.2.6 • 2.2.2.7 • 2.2.2.8

🌑 "Katzenreich" 🐱

22.00.1.1 • 22.00.1.1 v2

🔥 "The Way of Fire" 🔥

2.2.2 • 2.2.2.1 • 2.2.2.2 • 2.2.2.3

2.2.1 • 2.2.1.1 • 2.2.1.2 • 2.2.1.3 • 2.2.1.4

2.2 • 2.2.0.1

🐻 "Bears and Bandits" 🏹

2.1 • 2.1.0.1 • 2.1.1

🦓 "Shores of Zebrica" 🌴

2.0.1.6 • 2.0.1.7 • 2.0.1.8

🔥 "The Dawnclaw Heresy" 🔥

40.0.0.0

🦓 "Shores of Zebrica" 🌴

2.0.1 • 2.0.1.1 • 2.0.1.2 • 2.0.1.3 • 2.0.1.4 • 2.0.1.5

2.0 • 2.0.0.1 • 2.0.0.2 • 2.0.0.3 • 2.0.0.4 • 2.0.0.5

🦅 "Two Eagles" 🦅

1.9.1.14 • 1.9.1.15 • 1.9.2 • 1.9.2.1

"Twilight Theory"

1.9.6.2

🦅 "Two Eagles" 🦅

1.9.1 • 1.9.1.1 • 1.9.1.2 • 1.9.1.3 • 1.9.1.4 • 1.9.1.5 • 1.9.1.6 • 1.9.1.7 • 1.9.1.8 • 1.9.1.9 • 1.9.1.10 • 1.9.1.11 • 1.9.1.12 • 1.9.1.13

1.9 • 1.9.0.1 • 1.9.0.2 • 1.9.0.3 • 1.9.0.4

⚰️ "Dread Flood" ⚰️

1.8.6 • 1.8.6.1

⛰️ "In the Shadow of Mountains" ⛰️

1.8.3 • 1.8.3.1 • 1.8.3.2 • 1.8.3.3 • Minor update • 1.8.3.4 • 1.8.3.4 reupload • 1.8.3.5

1.8 • 1.8.0.1 • 1.8.1 • 1.8.2 • 1.8.2.1

🕊️ "Pax Chrysalia" 🕊️

1.7.7 • 1.7.7.1

1.7.4.3 • 1.7.4.4 • Minor update • 1.7.5 • 1.7.6 • 1.7.6.1 • 1.7.6.2

"Caesarreich: Apocalypse at War"

1.0

🕊️ "Pax Chrysalia" 🕊️

1.7.4 • 1.7.4.1 • 1.7.4.2

👑 "Herzland" 👑

1.7.3 • 1.7.3.1 • 1.7.3.2

1.7 • 1.7.0.1 • 1.7.0.2 • 1.7.1 • 1.7.1.1 • 1.7.1.2 • 1.7.1.3 • 1.7.2

🌵 "Sundered South" 🌴

1.6.1 • 1.6.2 • 1.6.2.1 • 1.6.2.2

1.6 • 1.6.0.1

🔥 "The Burning Sea" 🔥

1.5 • 1.5.0.1 • 1.5.0.2 • 1.5.0.3 • 1.5.1

🌌 "Northern Lights" 🌌

1.4.2 • 1.4.2.1

1.4 • 1.4.0.1 • 1.4.0.2 • 1.4.0.3 • 1.4.1 • 1.4.1.1

"Ponies at the Ready"

1.3.6 • 1.3.6.1

💸 "Idols" 💸

1.4.19

🐃 "Brothers' Feud" 🐃

1.3.5 • 1.3.5.1 • 1.3.5.2 • 1.3.5.3 • 1.3.5.4 • 1.3.5.5

🏞 "Riverlands" 🏞

1.3.3.6 • 1.3.4

1.3.3 • 1.3.3.1 • 1.3.3.2 • 1.3.3.3 • 1.3.3.4 • 1.3.3.5

1.3.2 • 1.3.2.1

1.3 • 1.3.0.1 • 1.3.0.2 • 1.3.1 • 1.3.1.1 • 1.3.1.1+ • 1.3.1.2 • 1.3.1.3 • 1.3.1.4

👑 "Windmill" 👑

1.2 • 1.2.0.1 • 1.2.0.2 • 1.2.0.3 • 1.2.1 • 1.2.2 • 1.2.2.1

🌸 "Poppy" 🌸

1.1 • 1.1.0.1 • 1.1.1 • 1.1.1.1 • 1.1.1.2 • 1.1.1.3 • 1.1.2 • 1.1.2.1

⚔ "Knights and Flowers" 🌸

1.0 • 1.0.1 • 1.0.2 • 1.0.3 • 1.0.3.1 • 1.0.3.2 • 1.0.4

Original release

0.1 • 0.2.0 • 0.2.4 • 0.3.0 • 0.3.1 • 0.3.2 • 0.4.0 • 0.4.1 • 0.5.X • 0.6 • 0.6.3

Patch 2.4 called Cats and Dogs is a major patch released on 2025-04-15 with checksum d421. It adds actual content for Abyssinia, reworks existing content for Bronzehill, and slightly tweaks the April Fool's version of Abyssinia from 2024. The two nations don't really interact with each other, but their pairing fits thematically.

Introduction

On the northwestern coast of Zebrica lies the ancient Kingdom of Abyssinia, proud inheritors of more than a thousand-year-old culture. But like so many on the continent, their lands were ravaged by the Storm King, and as a result King Gomez Mawkonnen's mental state has started to falter. Further still, the kingdom faces many challenges, with scheming nobles, unruly slaves, and the possibility of a famine looming above it all. Perhaps with the help of his wife, Gomez can weather the storm and finally bring Abyssinia to the prosperous future for which he worked so hard before the mad yeti foiled his plans.

Meanwhile, in Griffonia, the loyal dogs of Bronzehill cherish their Emperor, whose great-grandfather graciously gifted the lands to the runaway slaves from Diamond Mountain. But the county faces an increasingly contentious political scene, in which Count Ignatius sees his rule challenged by the demands for more political representation. Consequently, the declining health of Grover V has many dogs worried, as the regency that would follow his early death could prove to be a turning point in Bronzehillian history. Amidst the troubles, the only thing all dogs agree upon is their unwavering support for the Griffonstone dynasty.

Changelog

🐱 “Cats and Dogs” 2.4 🐶
New focus tree and content for:

• Kingdom of Abyssinia

Reworked focus tree and content for:

• County of Bronzehill

Additions:

• Abyssinia: Adapted Kaiser Kattail's content to the new Abyssinia content.
• Abyssinia: Added new names for the Katzenartig Imperium after each focus tree is completed.
• Abyssinia: Added a new "hard mode" game rule for Kaiser Kattail.
• Abyssinia: Added a Thaumonuclear Ramjet component for Kattail acquired via his weapons projects.
• Abyssinia: Added new Zebtropa GUI for Kattail.
• Changeling Lands: Added decision to release New Mareland Protectorate.
• Yakyakistan & Jaki-Clan: Added state highlighting in decisions.
• Yakyakistan & Jaki-Clan: Added unique titles for unit commanders.
• Changeling Lands & Quaggatai: Added a victory point and supply hubs.
• Yakyakistan: Added a victory point.
• Hippogriffia: Added icons for Skystar's Balance of Power.

Changes:

• Adjusted terrain in numerous provinces.
• Adjusted categories of various states.
• Adjusted values of numerous victory points.
• Moved scorched earth button and state modifier text in state UI.
• Moved opinion display in country UI.
• Cleaned up coastlines in map terrain.
• Tweaked availability of political focuses in generic Zebrican focus tree.
• Removed unused continents.
• Rescale BC armor speed.
• Fixed speed for SHBC.
• Increased motorized/mechanized suppression slightly.
• Abyssinia: Changed how Kaiser Kattail's countdown works, making it visible to all countries.
• Abyssinia: Repurposed Kaiser Kattail's Abyssinia into an entirely separate tag, which uses german voicelines and names.
• Abyssinia: Kattail now leaves when the timer runs out, and is replaced by Douclaw MacCathur.
• Angriver: Hera can no longer spam assassination decision or target country leader characters with it.
• River Republic: Moved a factory from one state to another.
• Strawberry Duchy: Changed a focus to always give a research slot instead of it being conditional.
• Ugabi: Nerfed starting OOB.
• Yakyakistan: Some focuses now gives supply hubs in states without them.
• Yakyakistan: Communist focus to move the capital now increases its victory point value.
• Yakyakistan: Moved position of some branches in communist tree.
• Chiropterra: Tooltip now displays modifiers of advisors added by decisions.

Fixes:

• Removed an April Fools loading screen.
• Fixed subideologies of various characters in several countries.
• Fixed date for modern radio technology.
• Reduce aliasing glitches on the map at low zoom level.
• Attempted to fix some issues with provinces in southeast Zebrica.
• Yakyakistan & Jaki-Clan: Fixed clan state modifiers not having descriptions.
• Jaki-Clan: Fixed a focus bypass for Kerr.
• Equestria: Fixed states not owned by Equestria being demilitarized as part of Twilight Theory content.
• Changeling Lands: Fixed party names, autonomy issues and some borders for protectorates.
• Hippone: Fixed some victory point placements in economic decisions.
• Greneclyf: Fixed broken national spirit icons.
• Changeling Lands: Fixed Helvia scientist not having a portrait.
• Miscellaneous bugfixes and improvements.
• Miscellaneous localisation fixes.

This update IS NOT save compatible with 2.3.2