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 v2.1.227 Home All releases olderv2.1.226 v2.1.228newer
Claude Code v2.1.227

A held cross-session message that is dropped now says so

You'll notice
Useful3 Signal2
Cross-Session Messaging

You now get a warning when an approved cross-session message is refused instead of delivered.

What

If you approve a held message from another session but delivery is refused because cross-session messaging was turned off or set to refuse while the prompt was open, you now get an explicit warning that it was not delivered. Previously only a vanished message produced a notice.

Evidence

That held message was NOT delivered: cross-session messaging was turned off (or set to refuse) while the prompt was open

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 →