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

Wake routing and cross-session notices rewritten off UI effects

You'll notice
Useful3 Signal2
Multi-Session

Agent wake-ups and cross-session notices now run outside the render loop, with the same behaviour.

What

The machinery that wakes agents and batches cross-session notices no longer runs as render effects; it is now plain subscriptions with coalesced updates and explicit teardown, tracking its own in-flight work per agent instead of re-evaluating on every render. Existing warnings and drop/resume behaviour are unchanged.

Evidence

[wakeRouter] resume state error for

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 →