GitHub experienced a major incident on September 4, 2026, lasting 1h 47m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Sep 04, 2026, 08:39 PM UTC
We are investigating reports of impacted performance for some GitHub services.
- investigating Sep 04, 2026, 08:57 PM UTC
Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.
- investigating Sep 04, 2026, 09:54 PM UTC
We are applying the mitigation and expect recovery within approximately 30 minutes.
- monitoring Sep 04, 2026, 10:25 PM UTC
The degradation has been mitigated. We are monitoring to ensure stability.
- resolved Sep 04, 2026, 10:26 PM UTC
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.