# Disruption with some GitHub services

- Provider: [GitHub](https://down.guide/providers/github)
- Confidence: Confirmed
- Impact: Degraded
- lasted 49m
- started 2026-09-15 19:11 UTC
- GitHub states the impact was 2026-09-15 15:30 to 20:00 UTC (4h 30m)
- id: DWN-218db8b319
- Official page: https://stspg.io/tbh60vgxfxj6

## Updates from GitHub
### 2026-09-15 19:11 UTC: investigating
We are investigating reports of impacted performance for some GitHub services.

### 2026-09-15 19:48 UTC: monitoring
The degradation has been mitigated. We are monitoring to ensure stability.

### 2026-09-15 20:00 UTC: resolved
On September 15, 2026 between 15:30 and 20:00 UTC, some Copilot code reviews on pull requests failed to complete. The cause was increased latency in an internal caching service that GitHub Copilot Code Review relies on to coordinate its review jobs. This caused a timeout in lock acquisition, which interrupted the job. We reverted the change to the internal caching service and restored normal operation by 20:00 UTC.
We sincerely apologize for the disruption.

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