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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 v2.1.227

Renderer survives a dead stdout under the daemon background backend

Use it now
Useful2 Signal3
Background Tasks Notable

With the daemon background backend, the display survives stdout disappearing instead of dying.

What

Setting CLAUDE_BG_BACKEND=daemon now makes the terminal renderer tolerate stdout going away instead of treating it as fatal.

Details
  • The terminal wrapper tracks whether tolerance is on and whether stdout has already died.
  • Separately, the warnings about garbage or absurd terminal dimensions moved from a once-per-process flag to a per-renderer callback, so a second renderer can still warn.
Evidence

tolerateDeadStdout: re.CLAUDE_BG_BACKEND === "daemon"

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.227 →