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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.235 18 Aug 2026

Durable-watch failures log the server's reason and mark relayed subscribes

Under the hood

Useful2 Signal2

Artifacts

Failed artifact watch subscriptions now log the server's actual reason, and expected failures stop shouting at you.

What

Failed artifact watch subscriptions now log the message the server sent, with expected failures dropped to debug level and only unexpected ones warning.

Details

Subscribe telemetry carries a relay marker when the request went over the relay route.
Server messages are mapped to close codes, and a redaction pass strips words and URLs before anything is logged or reported.

Evidence

[artifact] durable watch failed: reason=

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

See this entry in the whole of v2.1.235 →