GitHub Outage History

GitHub experienced degraded performance for API requests for 25 minutes on March 11, 2026. Users reported performance issues when making API calls to the platform. The incident was resolved and GitHub indicated they would provide a detailed root cause analysis.

GitHub's Copilot Code Review service experienced degraded performance for 1.5 hours, causing customers to encounter extended review times and occasional failures. The incident began at 14:01 UTC and was fully resolved by 15:53 UTC. GitHub monitored the service during recovery to ensure complete restoration of normal functionality.

GitHub experienced degraded performance affecting Webhooks, including latency issues on API and UI endpoints. The incident lasted 1.3 hours before being resolved. A detailed root cause analysis will be provided once available.

GitHub experienced degraded performance with Codespaces, causing approximately 5% of new Codespace creation requests to fail initially, which improved to 3% during recovery. The incident affected the Codespaces service and lasted 52 minutes before being fully resolved. GitHub investigated the root cause across impacted regions and restored normal functionality.

GitHub experienced a 6.6-hour incident affecting their Webhooks service, specifically impacting the webhook deliveries API and related configuration pages. Users encountered intermittent failures when accessing webhook delivery histories, retrying deliveries, and using webhook APIs, with less than 1% of requests failing for a subset of customers. The incident was resolved after multiple mitigation attempts, with engineers deploying a final fix that restored full service functionality.

GitHub Actions experienced degraded availability for 1.1 hours, causing delays between triggering workflows and their actual execution. The incident also affected dependent services including GitHub Pages. GitHub applied a mitigation that restored normal functionality, with full resolution confirmed shortly after.

GitHub experienced a major service incident affecting Actions and Webhooks, with Actions suffering from significant delays in queuing workflow runs (up to 6+ minutes) and both services experiencing degraded availability. The incident lasted 3 hours and was resolved after GitHub applied mitigations for backend connection failures and restored nominal queueing rates for Actions workflows.

GitHub experienced a 19-minute service disruption affecting the mission control task listing functionality. Users were temporarily unable to see tasks in mission control surfaces, though they could still submit new tasks, view existing tasks via direct links, and manage tasks normally. The issue was resolved by deploying a revert to restore full functionality.

GitHub experienced degraded performance in Copilot services due to issues with the gpt-5.3-codex model from an upstream provider, affecting Copilot Chat, VS Code, and other Copilot products. The incident lasted 29 minutes and was resolved after GitHub worked with the upstream model provider to address the issue.

GitHub Copilot experienced degraded performance for 40 minutes, with some users unable to access the Claude Opus 4.6 Fast model. The incident was classified as minor and affected GitHub's Copilot service. The issue was resolved with confirmation that all expected users maintained access to Claude Opus 4.6 throughout the incident.