# GitLab: Major incident: GitLab Duo is unavailable on VSC and Web UI

**Summary:** _summary pending_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-02-03 13:11 UTC · Detected: 2026-10-18 05:08 UTC
- [Source: https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6981f3ea6a29f904fc59b66e](https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6981f3ea6a29f904fc59b66e)
- [Company: GitLab](https://rewindex.com/company/gitlab.md)
- Versions: before (none: first archived) → after incident\_version:188/6981f3ea6a29f904fc59b66e@8b4529bba71e
- Change 1 of 1 for this incident

Incident page (full timeline): [GitLab Duo is unavailable on VSC and Web UI](https://rewindex.com/company/gitlab/incidents/6981f3ea6a29f904fc59b66e.md)
## What changed

**1. Added: Title**

```diff
+ GitLab Duo is unavailable on VSC and Web UI
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-02-03 13:11 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-02-03 17:52 UTC
```

**6. Added: Affected components**

```diff
+ GitLab Duo
```

**7. Added: Update** (investigating) · 2026-02-03 13:11 UTC

```diff
+ GitLab Duo is unavailable for all users in both the VSCode extension and the web interface. Attempting to use the agentic chat triggers an error: "GitLab Duo is already responding to this chat in another tab or location." See issue for details: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/21192
```

**8. Added: Update** (investigating) · 2026-02-03 13:31 UTC

```diff
+ GitLab Duo is still unavailable for all users in both the VSCode extension and the web interface. We are currently investigating. See issue for details: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/21192
```

**9. Added: Update** (identified) · 2026-02-03 15:04 UTC

```diff
+ The issue has been identified to have been caused by a recent change. The change has been reverted and we expect Duo should be available for VSC and Web UI. See issue for details: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/21192
```

**10. Added: Update** (monitoring) · 2026-02-03 15:36 UTC

```diff
+ Duo availability is back to normal. We are currently monitoring. See issue for details: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/21192
```

**11. Added: Update** (resolved) · 2026-02-03 17:52 UTC

```diff
+ Duo is once again fully available from within the GitLab UI and Visual Studio Code.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-02-03 13:11 UTC | Major incident: GitLab Duo is unavailable on VSC and Web UI (this change) | outage |

All GitLab changes: [timeline](https://rewindex.com/company/gitlab/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/i85c7e80acab689 · Markdown: https://rewindex.com/change/i85c7e80acab689.md · JSON: https://rewindex.com/api/v1/changes/i85c7e80acab689 · Generated 2026-10-18T12:19:11.589Z