Semgrep change history: Investigating issues with pull request checks and repository scans

Semgrep reported a major outage affecting repository scans and GitHub pull request checks: some customers saw scans not starting or checks not appearing. It started at 2026-03-06 12:04 UTC and was resolved at 2026-03-06 16:18 UTC, lasting 4 h 14 min. A fix was rolled out, and scans returned to normal operation.