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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.274 ·

Retryable-error classifier reworked and widened

More API error codes are now treated as retryable instead of fatal

You'll notice Improvements
JSON All of v2.1.274
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
API ErrorsArea: what it touches
ImprovementsKind: in v2.1.274,
ImprovementsSection of the release
What

The logic that decides whether an API error should be retried rather than treated as fatal now treats any error in the 4xx range as retryable, except for 401 (unauthorized), 403 (forbidden), and 429 (rate limited). Previously only the specific codes 400, 404, and 405 were treated this way. The check also now reads the error's text body using a different helper function.

Why

This means more kinds of client-side errors from the API will be retried automatically instead of immediately surfacing as a failure, which should reduce the number of errors that interrupt a session unnecessarily.

See this entry in the whole of v2.1.274 →

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