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Sweep 29 Sep 2026 · 18:10Z Build v2.1.285 506 read Stable v2.1.280 Latest v2.1.285 Next v2.1.285 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

File-write byte-limit tracking now releases its lock in a finally block

File-write size-limit check now always releases its lock, even on error

Under the hood Bug Fixes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Bug FixesKind: in v2.1.280,
Bug FixesSection of the release
What

The internal helper that enforces a limit on how many bytes can be written to a file now releases its lock in a finally block, so the release happens even if the size check throws an error or returns early.

Why

This prevents the lock from being left held if something goes wrong during the check, which could otherwise block further file writes.

See this entry in the whole of v2.1.280 →

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