Source Intelligence

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.

All of v2.1.239 Home All releases olderv2.1.238 v2.1.240newer
Claude Code v2.1.239

Truncated mouse sequences time out after two seconds instead of stalling

You'll notice
Useful3 Signal1
Terminal Input

A clipped mouse report now waits two seconds instead of leaving your input stuck.

What

When a mouse escape sequence arrives partially, the key parser now waits up to 2000 ms for the rest before dropping it, rather than applying the 50 ms deadline used for ordinary incomplete escapes. This stops a clipped mouse report from leaving input in a stuck state.

Evidence

MOUSE_PREFIX_TIMEOUT

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 v2.1.239 →