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GitHub Copilot: Codespaces creation failling
Timeline of updates
- resolved
On October 20, 2025, between 08:05 UTC and 10:50 UTC the Codespaces service was degraded, with users experiencing failures creating new codespaces and resuming existing ones. On average, the error rate for codespace creation was 39.5% and peaked at 71% of requests to the service during the incident window. Resume operations averaged 23.4% error rate with a peak of 46%. This was due to a cascading failure triggered by an outage in a 3rd-party dependency required to build devcontainer images. The impact was mitigated when the 3rd-party dependency recovered. We are investigating opportunities to make this dependency not a critical path for our container build process and working to improve our monitoring and alerting systems to reduce our time to detection of issues like this one in the future.
From GitHub Copilot’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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