GitLab change history: Security Policy Evaluation delays affecting MR approvals

GitLab reported a major Background Processing incident: Security Policy Evaluation delays affected MR approvals from 2026-09-10 15:24 UTC until resolution at 2026-09-10 20:10 UTC, lasting 4 h 46 min. GitLab reported normal execution at 19:21 UTC; it identified an underlying problem and worked on mitigating changes but did not specify the cause or fix.