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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

Streaming frames are dropped rather than replayed late after a reconnect

You'll notice
Useful3 Signal2
Sessions

Streaming text produced while the connection is recovering is dropped instead of arriving in a late burst.

What

When the remote bridge is holding traffic because writes are gated or the transport is recovering, stream_event frames are filtered out and counted instead of buffered. Streaming deltas produced during the gap are lost rather than arriving in a burst after the connection returns; only the other frames are queued and replayed.

Evidence

stream_event frame(s) during flush

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

See this entry in the whole of v2.1.248 →