Paradox has released patch 1.19.2 for Hearts of Iron IV under the title Thunder at Our Gates.
What this means for players
Strategy updates often touch interconnected systems, so apparently narrow changes can alter production plans, diplomacy or the balance of an entire campaign. The patch continues the studio’s effort to refine a game with an enormous ruleset.
Guild briefing
Commanders should read the official notes before resuming an important save and consider a fresh campaign when using major mods.
Source: Official Hearts of Iron IV announcement, June 30, 2026.
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