GitHub Availability Report: November 2025
Blog post from GitHub
In November 2025, GitHub encountered three separate incidents impacting service performance, each with distinct causes and resolutions. On November 17, a rate limit issue with the GitHub Container Registry affected Dependabot's job completion, which was resolved by adjusting rate limits and implementing new monitoring measures. The following day, an expired TLS certificate caused widespread Git operation failures, rectified by replacing the certificate and enhancing alert systems to prevent recurrence. Lastly, on November 28, a misconfiguration led to an outage of the Claude Sonnet 4.5 model used by Copilot, which was fixed by reverting the erroneous change and prompted efforts to improve deployment safeguards. These incidents have driven GitHub to bolster its monitoring, alerting, and automation practices to enhance service reliability.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| AI Coding Assistant | 1 | 621 | 185 | 88 | -35% |
| Real-time | 1 | 7,285 | 1,202 | 224 | +60% |
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