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Memgraph 3.13.0 makes a damaged mid-chain WAL file a fatal error after finding it caused silent data loss
Released 2026-09-09, Memgraph 3.13.0 fixes recovery applying the readable prefix of a damaged WAL file and then applying every following file in full, producing an incomplete dataset with no warning. On a replica the divergence never healed, because the replica reported the later timestamp and main considered it caught up. Damage in a finalized WAL file is now fatal and recovery fails rather than starting stale; a WAL still being written at crash time is still truncated to its last whole transaction. Recovery now needs --storage-allow-recovery-failure plus RECOVER SNAPSHOT, or a backup.
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