Update history
Latest Hearts of Iron IV updates
Search patches, hotfixes, and dev posts. Load more to keep browsing the timeline.
Browse updates
Published changes
Search updates. Filter by source or date. Open any row for the full patch notes, or load more to continue the timeline.
- Hearts of Iron IV
Dev Corner 2601008 - TaoG
Previously: Dev Corner 2601007 - TaoG Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you know we hav…
- Hearts of Iron IV
No Compromise, No Surrender | Patch 1.17.4
Generals! Since the first open beta release we’ve focused on a few areas to continue to develop, before releasing the update full. Naval AI We continued to look at naval AI and making them perform better, we are happy t…
- Hearts of Iron IV
Dev Corner 2601007 - TaoG
Previously: Dev Corner 2601006 - TaoG Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you know we hav…
- Hearts of Iron IV
No Compromise, No Surrender - 1.17.4 Open Beta Client Update
Generals! Batya here again. We’ve gotten a lot of input on the beta patch and we really appreciate it, thank you. While reading all your comments we decided that there are a few things that we want to work on before goi…
- Hearts of Iron IV
Dev Corner 2601006 - TaoG
Previously: Dev Corner 2601005 - TaoG Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you know we hav…
- Hearts of Iron IV
Dev Corner 2601005 - TaoG
Previous Dev Corner 2601004- TaoG Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you know we have tw…
- Hearts of Iron IV
No Compromise, No Surrender - 1.17.4 Open Beta
Hello everyone, I am Batya, a game designer that recently joined the ranks to bolster the team working on Hearts of Iron IV. Before this I was already working at Paradox on another project though so I am no complete str…
- Hearts of Iron IV
Dev Corner 2601004 - TaoG
Previously: Dev Corner 2301003 - TaoG (Australia) Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you…
- Hearts of Iron IV
Dev Corner 2601003 - Thunder at our Gates
(Previously: Dev Corner 2601002 - TaoG) Generals! It’s time for another Developer CORNER. Just for the first couple of these, before we continue, I want to set some expectations and clear things up. By now you know we h…
- Hearts of Iron IV
Dev Corner 2601002 - Thunder at our Gates
(Previously: Dev Corner 2601001 - Thunder at our Gates) Generals! It’s time for another Developer CORNER. On Tuesday we kicked things off with our first Dev Corner of 2026 where we asked you about Siam, and we were plea…
- Hearts of Iron IV
Dev Corner 2601001 - Thunder at our Gates
Generals! It’s a new year, so we’re preparing for future content. To this end we are starting up a new round of Developer CORNERS. Before we continue I want to set some expectations and clear things up. By now you know…
- Hearts of Iron IV
Studio Gold | January Update - What we're working on
Welcome back, everyone, PDX_Gorion here! We are back from our winter break and I wanted to keep you in the loop of what is going on in snowy Stockholm. Last year was an eventful year for us, with the release of Graveyar…
- Hearts of Iron IV
Mods Mods Mods! Ready for NCNS (Final)
Generals! With the conclusion of 2025, and us now moving into the new year, we'll be rounding up our Mods! Mods! Mods! series, with this final post. Like many of our titles, Hearts of Iron IV has a deep history of mods…
- Hearts of Iron IV
Mods Mods Mods! Ready for NCNS (Part 4)
Generals! At this point we've already brought you loads of ready to go, NCNS-compatible mods. Mods! Mods! Mods! These are all ready for NCNS. (Part 1) Mods! Mods! Mods! These are all ready for NCNS. (Part 2) Mods! Mods!…
- Hearts of Iron IV
Mods Mods Mods! Ready for NCNS (Part 3)
Generals! At this point we've already brought you two shipments of ready to go, NCNS -compatible mods. - Mods Mods Mods! (part 1) - Mods Mods Mods! (Part 2) We're continuing to expand that list even further with another…
- Hearts of Iron IV
Hearts of Iron IV 2025 Battle Report
Generals! ️ Another year is coming to an end, and what a year it's been. As is now steadily becoming tradition, we bring you the year's final Battle Report of your collective efforts, straight from HQ. If you want see t…
