GitHub outage, 1 September 2026
Delays in commit processing
- Started
- Resolved
- 1 Sept 2026, 16:01 UTC (after 1 h)
- Impact
- Minor
- Affected
- Pull Requests
Last update from GitHub
On September 1, 2026, between approximately 14:01 and 16:01 UTC, updates in response to pushes were delayed, temporarily showing stale diffs. The median time to refresh a diff after a push rose from the normal level of about 3 seconds to over 2 minutes at the peak, and more than 140,000 customer accounts had at least one delayed refresh during the most affected 75 minutes. Pushing commits and opening pull requests continued to work normally. The incident was caused by a sharp, concentrated surge in push volume that saturated worker pools and job queueing infrastructure. Autoscaling did not increase capacity as intended, so the backlog did not clear on its own. <br /><br />The incident was mi...
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