GitHub Outage History

GitHub experienced a major incident affecting multiple core services including Git Operations, API Requests, Webhooks, Issues, Pull Requests, Actions, Codespaces, and Copilot for 1.2 hours. Users encountered "uninitialized" errors and unhealthy upstream issues, with git pull operations processing but commits failing. GitHub identified the root cause, applied a mitigation around 19:17, and saw gradual recovery across services before full resolution at 20:09.

GitHub experienced a 6.8-hour incident where project board updates were significantly delayed, with newly added issues, pull requests, and field changes taking up to 5 hours to appear instead of the normal near-real-time behavior. The GitHub Issues component was affected, causing degraded performance for project management workflows. GitHub deployed a fix that restored normal processing speeds and cleared the backlog of delayed updates, fully resolving the incident.

GitHub experienced degraded performance with Pull Requests for 2.9 hours, specifically affecting the ability to filter pull requests on the /pulls dashboard. The incident was resolved by deploying a fix that was rolled out across all regions within 60 minutes of implementation.

GitHub Copilot experienced degraded performance due to networking issues with model requests and a spike in errors during agent sessions. The incident affected Copilot functionality for 31 minutes. The issue was resolved and GitHub indicated a detailed root cause analysis would be provided.

GitHub experienced a 2.9-hour incident where code view pages failed to load for repositories containing non-ASCII characters. The issue was resolved through code changes and cache invalidation to restore functionality for all affected repositories.

GitHub Copilot experienced degraded performance for 46 minutes, affecting the service's functionality including dashboard display issues reported by users. The incident was resolved after investigation and GitHub indicated a detailed root cause analysis would follow.

GitHub experienced degraded performance with Copilot Agent Sessions that impacted CCA/CCR functionality for 9 minutes. The incident was resolved after investigation, with GitHub promising to share a detailed root cause analysis once available.

GitHub experienced degraded performance with Issues and Pull Requests search functionality, causing timeout errors for some customers. The incident affected the Issues and Pull Requests components for 15 minutes. The issue was resolved and GitHub indicated a detailed root cause analysis would be provided.

GitHub's code search service experienced degraded performance for 4.8 hours, with users encountering increased latency and timeout errors. The issue was traced to elevated CPU usage on a single shard within the code search infrastructure. GitHub identified the root cause, implemented a fix to isolate and mitigate the affected shard, and fully resolved the incident.

GitHub Actions experienced degraded performance for 50 minutes on February 23rd, 2026. Users reported performance issues with the Actions service during this time. The incident was resolved and GitHub indicated they would provide a detailed root cause analysis.