# X4: Foundations 9.00 RC4 now available

- Product: X4: Foundations (https://whatsnew.fyi/product/x4-foundations)
- Vendor: Egosoft
- Date: 2026-06-02
- Original notes: https://store.steampowered.com/news/app/392160/view/683003412174867212
- Permalink: https://whatsnew.fyi/product/x4-foundations/releases/2026-06-02-9.00-rc4-now-available

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'.

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- **fixed** — Prospectors assigned to non-mining stations not looking for any resources
- **fixed** — Crews not appearing reliably on medium sized ships
- **fixed** — Spawning of online inventory ship creating an online save in offline games
- **fixed** — Deploy Here option not working under certain circumstances
- **fixed** — Engines on Theseus Sport looking visually wrecked
- **fixed** — Custom key bindings for Numpad +/- not working in cockpit or when walking

Release Candidate 4 is now available. Thank you, everyone, for your continued testing and for providing feedback! The full list of changes can be found below.

> **How Do I Take Part in the Public Beta?**
Every player who owns X4: Foundations has the opportunity to download the new 9.00 Public Beta version. In order to ensure that beta participants are aware of the [risks and rules involved](https://forum.egosoft.com/viewtopic.php?f=192&t=405396), we ask all interested players to visit our forum, where they will find the rules and disclaimers, as well as practical instructions for participating in the beta. [Follow this link to our forum](https://forum.egosoft.com/viewtopic.php?f=192&t=405397) - no registration required - to find the relevant information.

>

##### X4 9.00 RC4 Changelog:

([see the full 9.00 Public Beta Changelog in our forum](https://forum.egosoft.com/viewtopic.php?p=4773925#p4773925))

- Fixed Prospectors assigned to non-mining stations not looking for any resources (new feature in 9.00).

- Fixed crews not appearing reliably on medium sized ships (problem introduced in 9.00).

- Fixed spawning of online inventory ship creating an online save in offline games (problem introduced in 9.00).

- Fixed Deploy Here option not working under certain circumstances (problem introduced in 9.00).

- Fixed engines on Theseus Sport looking visually wrecked.

- Fixed custom key bindings for Numpad +/- not working in cockpit or when walking.

##### In case you missed it

[>> X4 Foundations 9.00 "Empire Update" Public Beta is Now Live!](https://store.steampowered.com/news/app/392160/view/528744981882470468)
[>> Egosoft Public Beta Feedback Forum](https://forum.egosoft.com/viewforum.php?f=192) (please make sure to read the rules thread before posting)