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Reading a new release v2.1.251 Analysing changes · 2/5 Sorting the findings · 1/4 steps 470 findings $18.91 so far

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 v2.1.33

Streaming Fallback to Non-Streaming Mode

What

Automatic fallback when the streaming API endpoint returns a 404 error.

Details
  • When the streaming endpoint returns HTTP 404, Claude Code now automatically falls back to non-streaming mode
  • Logs a warning: "Streaming endpoint returned 404, falling back to non-streaming mode"
  • Telemetry tracks these events with error: "404_stream_creation"
Evidence

Fallback logic (search for "Streaming endpoint returned 404", "404_stream_creation")

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

See this entry in the whole of v2.1.33 →