What Happened
GitHub experienced an outage on April 20, 2026. The incident lasted approximately 15 hours 5 minutes.
World's largest source code hosting platform with version control, CI/CD (Actions), code review, project management, and AI coding assistant (Copilot).
Timeline
| Time (UTC) | Status | Details |
|---|---|---|
| 04:18 | Monitoring | The degradation has been mitigated. We are monitoring to ensure stability. |
| 03:10 | Monitoring | The issue remains mitigated. Issues that were linked to projects during the incident may take approximately three more hours to render correctly while we complete a re-index. |
| 21:36 | Monitoring | The degradation has been mitigated. We are monitoring to ensure stability. |
| 18:21 | Monitoring | The degradation has been mitigated. We are monitoring to ensure stability. |
| 18:20 | Monitoring | The degradation has been mitigated. We are monitoring to ensure stability. |
| 18:20 | Investigating | The issue has been mitigated. Newly created issues linked to projects should now function as expected. Issues that were linked to projects during the incident may take approximately five hours to r... |
| 18:08 | Investigating | A deployment to fix this issue of new issues not showing up in projects is underway. |
| 17:32 | Investigating | We continue to work on mitigation regarding new issues not showing on project boards. |
| 16:48 | Investigating | We continue to work on mitigation regarding new issues not showing on project boards. |
| 16:16 | Investigating | Code scanning default setup and Code Quality triggers are back up and running. PRs not processed before or during this incident will require a new push to trigger code scanning or code quality anal... |
| 15:20 | Investigating | We are continuing to work on a mitigation to unblock code scanning default setup and code quality features on pull requests. |
| 14:38 | Investigating | We are currently deploying mitigations that should unblock code scanning default setup and code quality features on pull requests. |
| 13:57 | Investigating | We are actively working to mitigate an issue affecting code scanning default setup and code quality features on pull requests. Users may experience pull request code scanning and code quality analy... |
| 13:28 | Investigating | We are investigating reports of impacted performance for some GitHub services. |
| 05:07 | Resolved | All systems operational |
Impact
The outage lasted approximately 15 hours 5 minutes. GitHub runs on Azure — check those status pages if you experienced cascading issues.
Resolution
GitHub has recovered and is now operational.
What To Do Next
- View GitHub live status and outage history
- Set up alerts to get notified instantly next time GitHub has an issue
- Compare GitHub reliability with other services
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This post was automatically generated by ServiceAlert.ai's monitoring system. View live status →