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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 v2.1.228 11 Aug 2026

Interrupt no longer races ahead of queued messages

You'll notice

Useful3 Signal2

Sessions

Interrupting a remote session no longer arrives ahead of messages still queued to send.

What

Pressing interrupt in a remote session used to fire immediately even when outbound messages were still being held, so the interrupt could land before them. It now fires immediately only when nothing is held, otherwise it waits for the held sends to be released.

Details

cancelSession registers a pending interrupt and sends after the held-send release settles, whether that succeeds or fails.

Evidence

[RemoteSessionManager] Sending interrupt signal

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

See this entry in the whole of v2.1.228 →