# GitHub: Incident silently edited: Disruption with some Copilot services

> Incident silently edited: Disruption with some Copilot services. Detected 2026-11-04 by Rewindex: what changed on GitHub’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/r033afcd632fce9
Last updated: 2026-11-04T18:33:49Z

**Summary:** _summary pending_
- Kind: Silent edit · Label: not classified yet
- Changed: 2026-11-04 18:33 UTC · Detected: 2026-11-04 18:33 UTC
- [Source: https://www.githubstatus.com/incidents/l7ycmglmykgg](https://www.githubstatus.com/incidents/l7ycmglmykgg)
- [Company: GitHub](https://rewindex.com/company/github.md)
- Versions: before incident\_version:187/l7ycmglmykgg@591ad6af69ff → after incident\_version:187/l7ycmglmykgg@49996fd7d647
- Change 7 of 7 for this incident

Incident page (full timeline): [Disruption with some Copilot services](https://rewindex.com/company/github/incidents/l7ycmglmykgg.md)
## What changed

**1. Changed: Update** (resolved) · 2026-10-28 15:28 UTC

```diff
- This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
+ On October 28, 2026, between 13:52 and 15:24 UTC, Copilot users saw errors when using several GPT-family models and the MAI Code 1.1 Flash model. Affected experiences included Copilot Chat in IDEs and on GitHub.com, the Copilot CLI, Copilot Code Review, the Copilot Coding Agent, Code Scanning Autofix, and Code Quality. About 9.73% of requests to the affected models failed, with a peak of about 36.97% at the start of the incident. The errors happened because a credential that we use to authenticate with an upstream model provider became invalid. We mitigated the incident by replacing the credential and redeploying the service. We are strengthening how we manage credentials for upstream providers to prevent this type of failure, returning retryable errors when an upstream provider rejects a request, and improving our monitoring so that we detect and mitigate this type of problem faster in the future.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-28 14:12 UTC | [Critical incident: Disruption with some Copilot services](https://rewindex.com/change/i05b0de68eeff8f.md) | degradation |
| 2026-10-28 14:23 UTC | [Incident updated: Disruption with some Copilot services](https://rewindex.com/change/rc4afdc8e1f77a8.md) | Normal progress |
| 2026-10-28 14:44 UTC | [Incident updated: Disruption with some Copilot services](https://rewindex.com/change/r82910587c52fea.md) | Normal progress |
| 2026-10-28 15:03 UTC | [Incident updated: Disruption with some Copilot services](https://rewindex.com/change/rf4b1ed272fe50d.md) | Normal progress |
| 2026-10-28 15:24 UTC | [Incident updated: Disruption with some Copilot services](https://rewindex.com/change/r8a2b4da146a326.md) | Normal progress |
| 2026-10-28 15:44 UTC | [Incident updated: Disruption with some Copilot services](https://rewindex.com/change/rdc4b420a2fcfb0.md) | Normal progress |
| 2026-11-04 18:33 UTC | Incident silently edited: Disruption with some Copilot services (this change) |  |

Previous: [change](https://rewindex.com/change/rdc4b420a2fcfb0.md) · All GitHub changes: [timeline](https://rewindex.com/company/github/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._

## Cite this

Incident silently edited: Disruption with some Copilot services on GitHub’s status page, changed 2026-11-04 18:33 UTC (change 7 of 7).

- Canonical URL: https://rewindex.com/change/r033afcd632fce9
- Citation: GitHub, “Incident silently edited: Disruption with some Copilot services” (2026-11-04 18:33 UTC). Archived by Rewindex: https://rewindex.com/change/r033afcd632fce9 (CC BY 4.0).
- Markdown link: `[GitHub: Incident silently edited: Disruption with some Copilot services (2026-11-04)](https://rewindex.com/change/r033afcd632fce9)`


---
Canonical: https://rewindex.com/change/r033afcd632fce9 · Markdown: https://rewindex.com/change/r033afcd632fce9.md · JSON: https://rewindex.com/api/v1/changes/r033afcd632fce9 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T21:43:10.875Z