GitHub: Disruption with projects service
Timeline of updates
- resolved
On April 21, 2026, between 13:35 UTC and 01:24 UTC the following day the projects service was degraded. During this time period, projects may have been out of sync and users may have experienced delays in changes to projects and their items. Delays in reflected changes peaked at approximately 45 minutes. The delays were caused by serialization errors that failed events and triggered a flood of resyncs, overloading our event processing layers. We mitigated the incident by speeding up processing time for incoming changes and otherwise waiting for all changes to be processed. We are working to increase our capacity for processing updates to projects to reduce our time to mitigation of issues like this one in the future.
From GitHub’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on www.githubstatus.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by GitHub, started 2026-04-21 15:03 UTC, resolved after 10 h, 1 update(s).
- Title
- Disruption with projects service
- Vendor
- GitHub
- Date
- URL
- https://rewindex.com/company/github/incidents/b4235qyfzx2z
GitHub profileRecent GitHub incidentsAll outages on April 21, 2026GitHub in April 2026MarkdownJSON