Incident With GitHub Enterprise Importer
Final update
On November 4, 2025, GitHub Enterprise Importer experienced a period of degraded migration performance and elevated error rates between 18:04 UTC and 23:36 UTC. During this interval customers queueing and running migrations experienced prolonged queue times and slower processing. The degradation was ultimately connected to higher than normal system load, once load was reduced error rates returned to normal. The investigation is ongoing to pinpoint the precise root cause and prevent future recurrence. Long-term work is planned to strengthen system resilience under high load and promote better visibility into migration status for customers.
Timeline
- Resolved · Nov 4, 22:00 UTC
On November 4, 2025, GitHub Enterprise Importer experienced a period of degraded migration performance and elevated error rates between 18:04 UTC and 23:36 UTC. During this interval customers queueing and running migrations experienced prolonged queue times and slower processing. The degradation was ultimately connected to higher than normal system load, once load was reduced error rates returned to normal. The investigation is ongoing to pinpoint the precise root cause and prevent future recurrence. Long-term work is planned to strengthen system resilience under high load and promote better visibility into migration status for customers.
More from GitHub
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2416:51 UTC | Disruption with billing information updates | minor | 3h 50m |
| Sep 2310:11 UTC | Incident across several services | minor | 18h 44m |
| Sep 2022:13 UTC | Incident with Pull Requests | minor | 1h 9m |
| Sep 1720:59 UTC | Elevated rate of errors for OpenAI models provided by Copilot | minor | 50m |
| Sep 1607:20 UTC | Degradation with Gemini 3.8 Flash | major | 10h 28m |
| Sep 1519:11 UTC | Disruption with some GitHub services | minor | 49m |
Sources: vendors' own status pages, published postmortems and SEC 8-K Item 1.05 filings, read daily. Times as reported. Logos via logo.dev; trademarks belong to their owners.