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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

Undelivered events can be handed to a replacement connection

Under the hood
Useful2 Signal3
Session Transport

A reconnecting client can pick up events the previous connection never received.

What

The session client gains ways to take, discard or adopt events that never reached the client, so a new connection can pick up where a closed one left off. Events marked ephemeral are always filtered out.

Details
  • New calls: take, discard and adopt undelivered client events.
  • The remote bridge now explicitly discards undelivered events when its v2 connection closes rather than dropping them silently.
Evidence

discardUndeliveredEvents

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 →