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topic: feature-flag
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org
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FM-029
The Silent Merge Queue Corruption That Hit 658 GitHub ReposA half-gated feature flag let an unreleased merge-base path escape into squash merge groups. Over a 4h38m impact window, GitHub's merge queue produced valid-looking commits that silently reverted prior work across 658 repositories and 2,092 pull requests.
GitHub
2026-04-23
4h38m
SEV-1
merge-queuefeature-flagsquash-merge