# Hearts of Iron IV HOI IV - Open Beta Summer Edition™ - Product: Hearts of Iron IV (https://whatsnew.fyi/product/hearts-of-iron-iv) - Vendor: Paradox Development Studio - 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/2026-07-06-hoi-iv-open-beta-summer-edition 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. Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'. --- - **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]_