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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 v2.1.3

Incremental TUI (tengu_sumi)

What

An experimental incremental terminal UI rendering system.

Status

Feature-flagged via tengu_sumi

Details
  • Controlled by ENABLE_INCREMENTAL_TUI environment variable or tengu_sumi feature flag
  • Infrastructure is in place but gated
Evidence

Sz() at line (contains dX(process.env.ENABLE_INCREMENTAL_TUI) and y8("tengu_sumi"))

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 v2.1.3 →