{"version":"2.1.280","anchor":"new-invariant-guard-on-sync-journal-notes","canonical_anchor":"new-invariant-guard-on-sync-journal-notes","heading":"New invariant guard on sync journal notes","tier":"internal","area":"Elsewhere","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/new-invariant-guard-on-sync-journal-notes","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### New invariant guard on sync journal notes\n\nA new internal check now throws an error if a sync journal note carries a chain that would otherwise silently be dropped\n\n**What**\n\nClaude Code keeps a sync journal to track certain state. A new runtime assertion now throws an error when a journal note carries a chain of data that its reader would otherwise drop, such as entries out of order, a malformed link, or a carrier type this build doesn't know how to write.\n\n**Why**\n\nThis turns a case that used to fail silently, by quietly discarding data, into a visible error, making problems in sync journal data easier to catch instead of going unnoticed.\n\n- Area: Elsewhere\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 1\/5"}