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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 v2.1.248

Prompt submission and composer state moved into dedicated controllers

Under the hood
Useful1 Signal0
REPL

Prompt sending and composer state moved into their own controllers with no behaviour change.

What

The code that sends your prompt and the code that tracks composer UI state were pulled out of the main REPL into two classes. Behaviour is unchanged, including the refusal to rewind in cloud sessions and the "Draft restored" notice.

Details
  • The submit controller owns submitting, submitting an empty prompt, submitting to a subagent, survey follow-ups, pulling a queued prompt back into the draft, and cancelling with drain of pending work.
  • The composer store holds the IDE selection, the bashes dialog, whether the message selector is open, and the exit interstitial.
  • Both throw if used before the REPL binds itself to them, which turns ordering mistakes into immediate errors rather than silent no-ops.
Evidence

Rewind is not yet available in cloud sessions

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 v2.1.248 →