You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.275,
ImprovementsSection of the release
What
When Claude Code restores file-history backups for a resumed session, it now keeps track of in-flight backup-copy operations, keyed by the backup file's name. If multiple messages reference the same backup file at once, they now share a single copy operation instead of each triggering a redundant copy.
Why
This avoids unnecessary duplicate work when restoring a resumed session, which is more efficient and reduces the chance of conflicting concurrent copies of the same backup file.