GitHub is having issues now

4 hours ago

GitHub experienced degraded service for code scanning default setup, code quality, and project boards from April 20, 2026, 10:28 UTC to April 21, 05:04 UTC.
During the incident, newly opened pull requests did not trigger code scanning or code quality analyses, and new issues did not appear on project boards.
The root cause was a serialization error that prevented proper event triggering for code scanning, code quality, and project board updates.
Mitigation involved deploying fixes to restore event publishing and updating event consumers for project boards, followed by a reindex of affected items.
Recovery steps included multiple updates and monitoring, with full restoration of services by April 21, 05:04 UTC, including a reindex for project board rendering.
To prevent recurrence, GitHub is strengthening schema validations and improving monitoring for publishing drops on critical topics.

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