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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

Local socket messaging: sanitized logs and unused auth state

Under the hood
Useful1 Signal1
Cross-Session Messaging

Local socket logs now scrub addresses and unexpected message values before printing.

What

The local unix-socket channel between Claude Code processes now routes unhandled control actions and message types through the error logger with values passed through a sanitizer, and sanitizes the socket address it prints during namespace checks.

Details
  • The server object gained auth fields: authRequired, activeTokens, activeKeyFile, authOkReported, authDropReported, lastStartFailureCause and lastStartDegradedCause, all cleared on teardown.
  • authRequired comes from a requireAuth start option; nothing in this build passes it, so token auth on this channel is inert here.
Evidence

[uds-messaging] Unhandled control action:

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 v2.1.228 →