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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 v2.1.281 ·

A fetch-failure retry check now counts more 4xx statuses as transient

A retry check now treats HTTP 408 and 409 as temporary failures, as well as 429

You'll notice Improvements
JSON All of v2.1.281
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
InternalsArea: what it touches
ImprovementsKind: in v2.1.281,
ImprovementsSection of the release

Unclear The finding does not say which request this is or what the saved result is used for.

What

When a network request fails with an HTTP error in the 400s, Claude Code decides whether the failure is temporary and worth retrying. HTTP status codes are the numbers a web server sends back to say how a request went. Codes in the 400s mean the request was refused. This check used to count only 429 (too many requests) as temporary. It now also counts:

  • 408 (request timed out)
  • 409 (conflict)

All other 400-range codes are still treated as final.

Why

Claude Code uses this answer to decide whether to record a result as settled when it never actually got one. A timeout or a conflict can now count as temporary, so it is less likely to be locked in as final.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding does not say which request this is or what the saved result is used for.

See this entry in the whole of v2.1.281 →

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