Xbox system update (OS 10.0.26100.9438)
Microsoft released an Xbox system update (OS version 10.0.26100.9438) on 2026-09-22. Microsoft does not publish CVE details for console system updates.
Manufacturer release date: 2026-09-22
Article last updated: 2026-10-05
Sources last checked: 2026-10-05
What changed
Why it matters
What to do
On the console, go to Profile & system > Settings > System > Updates, or follow Xbox Support's update help page.
On the console, go to Profile & system > Settings > System > Console info to see the installed OS version.
Xbox Support: system update helpXbox One and Xbox Series X|S receive updates on shared system branches; if no update is offered, the console may already be on the latest version.
Affected devices and versions
Covers: Xbox consoles.
Applies to: Xbox Series X|S, Xbox One.
We don't know which software your device is running. If your device is running an affected version, updating is the recommended action — check the installed version with the steps above.
Official sources
Record history
- 2026-10-05 — published: Verified from Microsoft's public release notes.
Written from official sources; not an automated feed. Guidance can help reduce risk. No setting or service can guarantee complete online safety.
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