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

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

Canonical: https://rewindex.com/change/rbe6425d86833f8
Last updated: 2026-11-04T18:43:46Z

**Summary:** _summary pending_
- Kind: Silent edit · Label: not classified yet
- Changed: 2026-11-04 18:43 UTC · Detected: 2026-11-04 18:43 UTC
- [Source: https://www.githubstatus.com/incidents/rn76zdy367m2](https://www.githubstatus.com/incidents/rn76zdy367m2)
- [Company: GitHub](https://rewindex.com/company/github.md)
- Versions: before incident\_version:187/rn76zdy367m2@bbaa8fb72df0 → after incident\_version:187/rn76zdy367m2@41b42fd45339
- Change 5 of 5 for this incident

Incident page (full timeline): [Disruption with Copilot Cloud services](https://rewindex.com/company/github/incidents/rn76zdy367m2.md)
## What changed

**1. Changed: Update** (resolved) · 2026-10-29 12:49 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 29, 2026, between 05:50 UTC and 12:40 UTC, Copilot agent sessions on GitHub.com and in VS Code were degraded. Live session updates often failed to load, and on average 2.14% of requests to the agent sessions service failed, with a peak of 8.61%. For about 10 minutes around 09:20 UTC, up to 40% of requests to list or create agent sessions failed. Copilot Chat on GitHub.com showed degraded agent session features during this time. The issue occurred when a large increase in task-list requests from a client experiment overloaded the cache that supports the agent sessions service. We mitigated the impact by increasing cache capacity, reducing nonessential load on the cache, and disabling the client experiment. We are moving rate limiting to separate infrastructure, reducing client polling, and improving our alerting so we can detect and respond to this type of overload faster.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-29 11:03 UTC | [Incident updated: Disruption with Copilot Cloud services](https://rewindex.com/change/rc8d68f614295ab.md) | Normal progress |
| 2026-10-29 11:43 UTC | [Incident updated: Disruption with Copilot Cloud services](https://rewindex.com/change/r89799edbd71867.md) | Normal progress |
| 2026-10-29 12:43 UTC | [Incident updated: Disruption with Copilot Cloud services](https://rewindex.com/change/r3f11682ec37190.md) | Normal progress |
| 2026-10-29 12:53 UTC | [Incident updated: Disruption with Copilot Cloud services](https://rewindex.com/change/r230fc08df67673.md) | Normal progress |
| 2026-11-04 18:43 UTC | Incident silently edited: Disruption with Copilot Cloud services (this change) |  |

Previous: [change](https://rewindex.com/change/r230fc08df67673.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 Copilot Cloud services on GitHub’s status page, changed 2026-11-04 18:43 UTC (change 5 of 5).

- Canonical URL: https://rewindex.com/change/rbe6425d86833f8
- Citation: GitHub, “Incident silently edited: Disruption with Copilot Cloud services” (2026-11-04 18:43 UTC). Archived by Rewindex: https://rewindex.com/change/rbe6425d86833f8 (CC BY 4.0).
- Markdown link: `[GitHub: Incident silently edited: Disruption with Copilot Cloud services (2026-11-04)](https://rewindex.com/change/rbe6425d86833f8)`


---
Canonical: https://rewindex.com/change/rbe6425d86833f8 · Markdown: https://rewindex.com/change/rbe6425d86833f8.md · JSON: https://rewindex.com/api/v1/changes/rbe6425d86833f8 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T21:43:13.205Z