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Partial outageGitHub ・ April 20, 2026

Partial degradation for code scanning default setup and for code quality

A record of the GitHub incident on April 20, 2026 (Japan time): start time, duration and severity, plus current status, what to do, and alternatives.

Started
Apr 20, 2026, 10:28 PM
Resolved
Apr 21, 2026, 02:04 PM
Duration
15h 36m
Impact
Partial outage

Current status

GitHub is operating normally now. This incident has been resolved.

See current GitHub status →

What you can do during an outage

Back to status overviewSee alternatives with live statusOfficial details ↗

Source: GitHub's official status page.

Other GitHub incidents

  1. Some SSH connections using deploy keys are failingJuly 21, 2026
  2. Disruption with GPT 5.3 CodexJuly 21, 2026
  3. Disruption with some GitHub servicesJuly 20, 2026
  4. Incident with GitHub ActionsJuly 20, 2026
  5. Degraded REST API AvailabilityJuly 17, 2026
← Back to GitHub outage historyBack to status overview