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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.224 ·

Worker shutdowns carry a typed reason

Background worker exits now carry a typed reason such as expired token or epoch conflict.

Under the hood Internal Changes
JSON All of v2.1.224
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Remote ControlArea: what it touches
Internal ChangesKind: in v2.1.224,
Internal ChangesSection of the release
What

Fatal exits now pass a reason such as session not found, token expired, auth exhausted, or an epoch conflict or stale epoch, instead of terminating with no explanation.

Details
  • The remote bridge maps auth-related reasons to WebSocket close code 4094 and the rest to 4090, so recovery can pick the right path.
Evidence

causeTypedCloseCodes

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.224 →

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