GitHub outage, 4 September 2026
Degradation in repos contents API
- Started
- Resolved
- 4 Sept 2026, 22:23 UTC (after 21 min)
- Impact
- Minor
Last update from GitHub
On September 4, 2026, between approximately 21:45 and 22:07 UTC, some users experienced errors and elevated latency for repository operations. The incident was fully resolved at 22:23 UTC.<br /><br />The cause was a capacity change that spread one of our clusters across additional availability zones; our zone-aware traffic routing kept sending requests to the original zone for performance, overloading a small set of servers while the new capacity sat idle. We resolved the incident by reverting the change and letting traffic rebalance.<br /><br />We are improving per-zone capacity guarantees, cross-zone load-shedding, and pre-production testing of multi-zone changes to prevent recurrence.
Is GitHub down now?
This page is the record of one past incident. For the live status, see Is GitHub down right now? - it reads the official status page every 2 minutes.